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AbD Serotec/IFN Gamma antibody | CC302/100 Tests/1ml/MCA1783A488_蚂蚁淘,【正品极速】生物医学科研用品轻松购|ebiomall 蚂蚁淘商城
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AbD Serotec/IFN Gamma antibody | CC302/100 Tests/1ml/MCA1783A488
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AbD Serotec/IFN Gamma antibody | CC302/100 Tests/1ml/MCA1783A488
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Mouse anti Bovine IFNγ antibody, clone CC302, recognizes bovine interferon-gamma, a 143 amino acid cytokine with potent activating, antiviral and anti proliferative properties, produced as a pro-peptide with an additional 23 amino acid N-terminal signal peptide sequence having a molecular weight of ~20 kDa. IFNγ is predominantly secreted by activated T lymphocytes in response to specific mitogens as a result of infection (Rhodes et al. 2000).Mouse anti bovine γ interferon antibody, clone CC302 has been demonstrated to be reactive to a number of mammalian species including human, sheep, dog, pig, goat and mink (Pedersen et al. 2002). Mouse anti Bovine IFNγ antibody, clone CC302 has been used successfully for the evaluation of γ interferon levels in the sera of calves naturally infected with M. avium. subsp paratuberculosis (Appana et al. 2013) as a detection reagent using an ELISA.

Product Details

Target Species
Bovine
Species Cross-Reactivity
Target SpeciesCross Reactivity
Human
Pig
Dog
Horse
Sheep
MustelidExpected from Sequence
Goat
Dolphin
Ferret
Mink
Fin Whale
Rabbit
N.B. Antibody reactivity and working conditions may vary between species.
Product Form
Purified IgG conjugated to Alexa Fluor 488 - liquid
Product Form
Purified IgG conjugated to Alexa Fluor® 647 - liquid
Product Form
Purified IgG conjugated to Biotin - liquid
Product Form
Purified IgG conjugated to Fluorescein Isothiocyanate Isomer 1 (FITC) - liquid
Product Form
Purified IgG - liquid
Product Form
Purified IgG conjugated to R. Phycoerythrin (RPE) - lyophilized
Reconstitution
Reconstitute with 1 ml distilled water
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein A from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein A from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein A from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09%Sodium Azide (NaN3)
1%Bovine Serum Albumin
Preservative Stabilisers
0.09%Sodium Azide (NaN3)
1%Bovine Serum Albumin
Preservative Stabilisers
0.09%Sodium Azide
Preservative Stabilisers
0.09%Sodium Azide
1%Bovine Serum Albumin
Preservative Stabilisers
0.09% Sodium Azide (NaN3)
Preservative Stabilisers
0.09%Sodium Azide
1%Bovine Serum Albumin
5%Sucrose
Carrier Free
Yes
Approx. Protein Concentrations
IgG concentration 0.05mg/ml
Approx. Protein Concentrations
IgG concentration 0.05mg/ml
Approx. Protein Concentrations
IgG concentration 0.5 mg/ml
Approx. Protein Concentrations
IgG concentration 0.1 mg/ml
Approx. Protein Concentrations
IgG concentration 1.0 mg/ml
Fusion Partners
Spleen cells from immunised BALB/c mice were fused with cells of the mouse SP2/0 myeloma cell line.

Storage Information

Storage
Store at +4oC or at -20oC if preferred.Storage in frost-free freezers is not recommended.This product should be stored undiluted. This product is photosensitive and should be protected from light. Avoid repeated freezing and thawing as this may denature the antibody.
Storage
Store at +4oC or at -20oC if preferred.Storage in frost-free freezers is not recommended.This product should be stored undiluted. This product is photosensitive and should be protected from light. Avoid repeated freezing and thawing as this may denature the antibody.
Storage
Store at +4oC or at -20oC if preferred.This product should be stored undiluted.Storage in frost free freezers is not recommended. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Storage
Store at +4oC or at -20oC if preferred.This product should be stored undiluted.Storage in frost free freezers is not recommended. This product is photosensitive and should be protected from light.Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Storage
Store at +4oC or at -20oC if preferred.This product should be stored undiluted.Storage in frost free freezers is not recommended. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Storage
Store at +4oC. DO NOT FREEZEThis product should be stored undiluted. This product is photosensitive and should be protected from light. Should this product contain a precipitate we recommend microcentrifugation before use.
Guarantee
12 months from date of despatch
Guarantee
12 months from date of despatch
Guarantee
12 months from date of despatch
Guarantee
12 months from date of despatch
Guarantee
12 months from date of despatch
Guarantee
12 months from date of despatch

More Information

UniProt
P07353
Entrez Gene
IFNG
GO Terms
GO:0009615response to virus
GO:0005125cytokine activity
GO:0005133interferon-gamma receptor binding
GO:0005615extracellular space
GO:0006955immune response
Acknowledgements
This product is provided under an intellectual property licence from Life Technologies Corporation. The transfer of this product is contingent on the buyer using the purchase product solely in research, excluding contract research or any fee for service research, and the buyer must not sell or otherwise transfer this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; (c) manufacturing or quality assurance or quality control, or (d) resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad CA 92008 USA or outlicensing@thermofisher.com
Acknowledgements
This product is provided under an intellectual property licence from Life Technologies Corporation. The transfer of this product is contingent on the buyer using the purchase product solely in research, excluding contract research or any fee for service research, and the buyer must not sell or otherwise transfer this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; (c) manufacturing or quality assurance or quality control, or (d) resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad CA 92008 USA or outlicensing@thermofisher.com
Regulatory
For research purposes only

Applications of IFN Gamma antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application NameVerifiedMin DilutionMax Dilution
Flow Cytometry 11/201/200
Flow Cytometry 11/101/100
ELISA5ug/ml
Flow Cytometry 11/10
ELISA
Flow Cytometry 11/1001/500
Flow Cytometry 1Neat1/10
  1. 1Membrane permeabilization is required for this application. Bio-Rad recommend the use of Leucoperm (Product Code BUF09) for this purpose.
  1. 1 Membrane permeabilization is required for this application. Bio-Rad recommend the use of Leucoperm (Product Code BUF09) for this purpose.
    1. 1Membrane permeabilization is required for this application. Bio-Rad recommend the use of Leucoperm (Product Code BUF09) for this purpose.
    1. 1Membrane permeabilization is required for this application. Bio-Rad recommend the use of Leucoperm (Product Code BUF09) for this purpose.
    1. 1 Membrane permeabilization is required for this application. Bio-Rad recommend the use of Leucoperm (Product Code BUF09) for this purpose.For use on Equine samples Bio-Rad recommend MCA1783F
    Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
    Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
    Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
    Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
    Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
    Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
    Flow Cytometry
    Use 10ul of the suggested working dilution to label 1x106 cells in 100ul.
    Flow Cytometry
    Use 10ul of the suggested working dilution to label 1x106 cells in 100ul.
    Flow Cytometry
    Use 10ul of the suggested working dilution to label 1x106 cells in 100ul.
    Flow Cytometry
    Use 10ul of the suggested working dilution to label 1x106 cells in 100ul.
    Flow Cytometry
    Use 10ul of the suggested working dilution to label 1x106 cells in 100ul.
    Flow Cytometry
    Use 10ul of the suggested working dilution to label 1x106 cells in 100ul
    ELISA
    Biotinylated mouse anti bovine IFNγ, clone CC302, may be used as the detection reagent in a sandwich ELISA with purified mouse anti bovine IFNγ, clone CC330, as the capture reagent and recombinant bovine IFNγ as the standard.
    ELISA
    Biotinylated mouse anti bovine IFNγ, clone CC302, may be used as the detection reagent in a sandwich ELISA with purified mouse anti bovine IFNγ, clone CC330, as the capture reagent and recombinant bovine IFNγ as the standard.

    Secondary Antibodies Available

    DescriptionProduct CodeApplicationsPack SizeList PriceQuantity
    Goat anti Mouse IgG (H/L):Alk. Phos. (Multi Species Adsorbed)STAR117AE WB 0.5 mgloader
    Goat anti Mouse IgG (H/L):FITC (Multi Species Adsorbed)STAR117FF 0.5 mgloader
    Goat anti Mouse IgG (H/L):HRP (Multi Species Adsorbed)STAR117PE WB 0.5 mgloader
    Goat anti Mouse IgG (Fc):FITCSTAR120FC F 1 mgloader
    Goat anti Mouse IgG (Fc):HRPSTAR120PE WB 1 mgloader
    Goat anti Mouse IgG:FITC (Rat Adsorbed)STAR70F 0.5 mgloader
    Goat anti Mouse IgG:HRP (Rat Adsorbed)STAR77C E P 0.5 mgloader
    Goat anti Mouse IgG/A/M:Alk. Phos.STAR87AC E WB 1 mgloader
    Goat anti Mouse IgG/A/M:HRP (Human Adsorbed)STAR87PE 1 mgloader
    Rabbit F(ab')2 anti Mouse IgG:Dylight®800STAR8D800GAF IF WB 0.1 mgloader
    Rabbit F(ab')2 anti Mouse IgG:FITCSTAR9BF 1 mgloader
    Rabbit F(ab')2 anti Mouse IgG:HRP (Human Adsorbed)STAR13BC E P RE WB 1 mgloader
    Goat anti Mouse IgG (H/L):DyLight®800 (Multi Species Adsorbed)STAR117D800GAF IF WB 0.1 mgloader
    Goat anti Mouse IgG (H/L):DyLight®488 (Multi Species Adsorbed)STAR117D488GAFIF 0.1 mgloader
    Goat anti Mouse IgG (H/L):DyLight®680 (Multi Species Adsorbed)STAR117D680GAF WB 0.1 mgloader
    Rabbit F(ab')2 anti Mouse IgG:RPESTAR12AF 1 mlloader
    Goat anti Mouse IgG:RPE (Rat Adsorbed)STAR76F 1 mlloader

    Negative Isotype Controls Available

    DescriptionProduct CodeApplicationsPack SizeList PriceQuantity
    Mouse IgG1 Negative Control:Alexa Fluor® 488MCA928A488F 100 Tests/1mlloader
    Mouse IgG1 Negative Control:Alexa Fluor® 647MCA928A647F 100 Tests/1mlloader
    Mouse IgG1 Negative Control:FITCMCA928FF 100 Testsloader
    Mouse IgG1 Negative ControlMCA928F 100 Testsloader
    Mouse IgG1 Negative Control:RPEMCA928PEF 100 Testsloader

    Application Based External Images

    ELISA

    Flow Cytometry

    Product Specific References

    References for IFN Gamma antibody

    1. Hasvold, H.J. et al. (2002) In vitro responses to purified protein derivate of caprine T lymphocytes following vaccination with live strains of Mycobacterium avium subsp paratuberculosis.Vet Immunol Immunopathol. 90 (1-2): 79-89.
    2. Mwangi, W. et al. (2002) DNA-encoded fetal liver tyrosine kinase 3 ligand and granulocyte macrophage-colony-stimulating factor increase dendritic cell recruitment to the inoculation site and enhance antigen-specific CD4+ T cell responses induced by DNA vaccination of outbred animals.J Immunol. 169 (7): 3837-46.
    3. Pedersen, L.G. et al. (2002) Identification of monoclonal antibodies that cross-react with cytokines from different animal species.Vet Immunol Immunopathol. 88 (3-4): 111-22.
    4. Aasted, B. et al. (2002) Cytokine profiles in peripheral blood mononuclear cells and lymph node cells from piglets infected in utero with porcine reproductive and respiratory syndrome virus.Clin Diagn Lab Immunol. 9 (6): 1229-34.
    5. Nielsen, L. et al. (2009) Lymphotropism and host responses during acute wild-type canine distemper virus infections in a highly susceptible natural host.J Gen Virol. 90: 2157-65.
    6. Jaber, J.R. et al. (2010) Cross-reactivity of anti-human, anti-porcine and anti-bovine cytokine antibodies with cetacean tissues.J Comp Pathol. 143: 45-51.
    7. Martel, C.J. & Aasted, B. (2009) Characterization of antibodies against ferret immunoglobulins, cytokines and CD markers.Vet Immunol Immunopathol. 132:109-15.
    8. Sow, F.B. et al. (2011) Respiratory syncytial virus is associated with an inflammatory response in lungs and architectural remodeling of lung-draining lymph nodes of newborn lambs.Am J Physiol Lung Cell Mol Physiol. 300 (1): L12-24.
    9. Ferret-Bernard, S. et al. (2011) Mesenteric lymph node cells from neonates present a prominent IL-12 response to CpG oligodeoxynucleotide via an IL-15 feedback loop of amplification.Vet Res. 42:19.
    10. Lybeck, K.R. et al. (2009) Neutralization of interleukin-10 from CD14(+) monocytes enhances gamma interferon production in peripheral blood mononuclear cells from Mycobacterium avium subsp. paratuberculosis-infected goats.Clin Vaccine Immunol. 16 (7): 1003-11.
    11. Contreras, V. et al. (2010) Existence of CD8α-like dendritic cells with a conserved functional specialization and a common molecular signature in distant mammalian species.J Immunol. 185: 3313-25.
    12. Fellman, C.L. et al. (2011) Cyclosporine A affects the in vitro expression of T cell activation-related molecules and cytokines in dogs.Vet Immunol Immunopathol. 140: 175-80.
    13. Pillet, S. et al. (2011) Cellular immune response in the presence of protective antibody levels correlates with protection against 1918 influenza in ferrets.Vaccine. 29 (39): 6793-801.
    14. Jensen, T.H. et al. (2009) Early life DNA vaccination with the H gene of Canine distemper virus induces robust protection against distemper.Vaccine. 27: 5178-83.
    15. Skyberg, J.A. et al. (2011) Murine and bovine γδ T cells enhance innate immunity against Brucella abortus infections.PLoS One. 6:e21978.
    16. Whelan, A.O. et al. (2011) Development of an Antibody to Bovine IL-2 Reveals Multifunctional CD4 T(EM) Cells in Cattle Naturally Infected with Bovine Tuberculosis.PLoS One. 6: e29194.
    17. Costa-Pereira, C. et al. (2015) One-year timeline kinetics of cytokine-mediated cellular immunity in dogs vaccinated against visceral leishmaniasis.BMC Vet Res. 11 (1): 92.
    18. Summers, C. et al. (2012) The distribution of immune cells in the lungs of classical and atypical ovine pulmonary adenocarcinoma.Vet Immunol Immunopathol. 146: 1-7.
    19. Maślanka T et al. (2012) The presence of CD25 on bovine WC1+ γδ T cells is positively correlated with their production of IL-10 and TGF-β, but not IFN-γ.Pol J Vet Sci. 15 (1): 11-20.
    20. Duncombe, L. et al. (2013) Investigating the Use of Protein Saver Cards for Storage and Subsequent Detection of Bovine Anti-Brucella abortus Smooth Lipopolysaccharide Antibodies and Gamma Interferon.Clin Vaccine Immunol. 20: 1669-74.
    21. Verhelst, D. et al. (2014) Parasite distribution and associated immune response during the acute phase of Toxoplasma gondii infection in sheep.BMC Vet Res. 2014 Dec 16;10(1):293.
    22. Köhler. H, et al. (2015) Characterization of a caprine model for the subclinical initial phase of Mycobacterium avium subsp. paratuberculosis infection BMC Veterinary Research. 11 (1): 74.
    23. Moreira, M.L. et al. (2016) Vaccination against canine leishmaniosis increases the phagocytic activity, nitric oxide production and expression of cell activation/migration molecules in neutrophils and monocytes.Vet Parasitol. 220: 33-45.
    24. Rodríguez-Gómez IM et al. (2016) Expression of T-bet, Eomesodermin and GATA-3 in porcine αβ T cells.Dev Comp Immunol. 60: 115-26.
    25. Taylor, G. et al. (2015) Efficacy of a virus-vectored vaccine against human and bovine respiratory syncytial virus infections.Sci Transl Med. 7 (300): 300ra127.
    26. Moreira, M.L. et al. (2015) Cross-reactivity of commercially available anti-human monoclonal antibodies with canine cytokines: establishment of a reliable panel to detect the functional profile of peripheral blood lymphocytes by intracytoplasmic staining.Acta Vet Scand. 57: 51.
    27. El-Naggar, M.M. et al. (2015) Development of an improved ESAT-6 and CFP-10 peptide-based cytokine flow cytometric assay for bovine tuberculosis.Comp Immunol Microbiol Infect Dis. 42: 1-7.
    28. McGill, J.L. et al. (2016) Vaccination with an Attenuated Mutant of Ehrlichia chaffeensis Induces Pathogen-Specific CD4+ T Cell Immunity and Protection from Tick-Transmitted Wild-Type Challenge in the Canine Host.PLoS One. 11 (2): e0148229.
    29. Vida, B. et al. (2016) Immunologic progression of canine leishmaniosis following vertical transmission in United States dogs.Vet Immunol Immunopathol. 169: 34-8.
    30. Totté, P. et al. (2010) CD62L defines a subset of pathogen-specific bovine CD4 with central memory cell characteristics.Dev Comp Immunol. 34 (2): 177-82.
    31. Sun, L. et al. (2012) The role of proliferation in the regulation of interferon gamma (IFNγ) expression in foals.Dev Comp Immunol. 36 (3): 534-9.
    32. Reber, A.J. et al. (2006) Evaluation of multiple immune parameters after vaccination with modified live or killed bovine viral diarrhea virus vaccines.Comp Immunol Microbiol Infect Dis. 29 (1): 61-77.
    33. Katepalli, M.P. et al. (2008) The effect of age and telomere length on immune function in the horse.Dev Comp Immunol. 32 (12): 1409-15.
    34. Hansen, S. et al. (2013) Age-related changes in intracellular expression of IFN-γ and TNF-α in equine lymphocytes measured in bronchoalveolar lavage and peripheral blood.Dev Comp Immunol. 39 (3): 228-33.
    35. Boshra H et al. (2015) A lumpy skin disease virus deficient of an IL-10 gene homologue provides protective immunity against virulent capripoxvirus challenge in sheep and goats.Antiviral Res. 123: 39-49.
    36. Hedges, J.F. et al. (2015) Amphotericin B stimulates γδ T and NK cells, and enhances protection from Salmonella infection.Innate Immun. 21 (6): 598-608.
    37. Johnson, W.C. et al. (2008) Bovine WC1(-) gammadeltaT cells incubated with IL-15 express the natural cytotoxicity receptor CD335 (NKp46) and produce IFN-gamma in response to exogenous IL-12 and IL-18. Dev Comp Immunol. 32 (8): 1002-10.
    38. Dewals, B.G., et al.l (2011) Malignant catarrhal fever induced by Alcelaphine herpesvirus 1 is characterized by an expansion of activated CD3+CD8+CD4- T cells expressing a cytotoxic phenotype in both lymphoid and non-lymphoid tissuesVet Res. 42(1): 95.
    39. Maggioli, M.F. et al. (2016) Increased TNF-α/IFN-γ/IL-2 and Decreased TNF-α/IFN-γ Production by Central Memory T Cells Are Associated with Protective Responses against Bovine Tuberculosis Following BCG Vaccination.Front Immunol. 7: 421.
    40. Cassady-cain, R.L. et al. (2017) Inhibition of Antigen-Specific and Nonspecific Stimulation of Bovine T and B Cells by Lymphostatin from Attaching and Effacing Escherichia coli.Infect Immun. 85 (2)Jan 26 [Epub ahead of print].
    41. Wattegedera, S.R. et al. (2017) Enhancing the toolbox to study IL-17A in cattle and sheep.Vet Res. 48 (1): 20.
    42. DaSilva, A.V.A. et al. (2018) Morphophysiological changes in the splenic extracellular matrix of Leishmania infantum-naturally infected dogs is associated with alterations in lymphoid niches and the CD4+ T cell frequency in spleens.PLoS Negl Trop Dis. 12 (4): e0006445.
    43. Higgins, J.L. et al. (2018) Cell mediated immune response in goats after experimental challenge with the virulent Brucella melitensis strain 16M and the reduced virulence strain Rev. 1.Vet Immunol Immunopathol. 202: 74-84.
    44. Roos, E.O. et al. (2018) IP-10: A potential biomarker for detection of Mycobacterium bovis infection in warthogs (Phacochoerus africanus).Vet Immunol Immunopathol. 201: 43-8.
    45. Aguiar-Soares, R.D.O. et al. (2020) Phase I and II Clinical Trial Comparing the LBSap, Leishmune®, and Leish-Tec® Vaccines against Canine Visceral Leishmaniasis.Vaccines (Basel). 8 (4)Nov 17 [Epub ahead of print].
    46. Fedorka, C.E. et al. (2019) Alteration of the mare"s immune system by the synthetic progestin, altrenogest.Am J Reprod Immunol. 82 (2): e13145.
    47. Lacasta, A. et al. (2021) Synergistic Effect of Two Nanotechnologies Enhances the Protective Capacity of the Theileria parva Sporozoite p67C Antigen in Cattle.J Immunol. Jan 08 [Epub ahead of print].

    Further Reading

    1. Rhodes, S. et al. (2000) Distinct response kinetics of gamma interferon and interleukin-4 in bovine tuberculosis.Infect Immun. 68:5393-400.

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    CiteAb logo - trusted, tested, published

    Our IFN Gamma (CC302) Antibody has been referenced in >83 publications*


    *Based on June 2020 data from CiteAb"s antibody search engine.

    View more products with IFN GAMMA specificity
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    复旦大学附属儿科医院王建设教授带领博士丘倚灵等,与复旦大学生物医学研究院出生缺陷研究中心邢清和教授、加拿大不列颠哥伦比亚省癌症研究所 Victor Ling 教授等联手,找到了导致婴儿遗传性胆汁淤积症的一个致病基因——MYO5B 基因突变。该研究对今后如何精确治疗婴儿遗传性胆汁淤积症有重要意义。最新一期国际权威期刊 Hepatology 在线发表了这一成果。据悉,婴儿出生 查看更多>
    2017年10月31日,上海捷易生物科技有限公司收到上海临床检验质量控制中心发来的室间质评成绩报告,显示捷易生物积极申请参加的KRAS基因突变检测室间质评项目以满分100分通过,创造了又一佳绩!  上海临床检验质量控制中心评价报告 捷易生物实验室一直以来秉持着“高标准,严要求”的原则,对检测流程和质检结果追求精益求精,主动参加由上海检验质量控制中心组织的室间质评,接受权威机构的能力考核和监督。并最终用满分的骄人成绩来回馈广大客户对我... 查看更多>
    PNAS:吃惊!单一基因突变或能明显影响人类的面部特征 查看更多>
    《科学》杂志官网近日消息称,一项探索非编码DNA的新研究发现,调节基因活性区域的改变也可能导致自闭症,令人惊讶的是,这些变化倾向于从非自闭症的父亲那里继承而来。 过去十 查看更多>
    近日,杜克大学癌症中心、约翰霍普金斯大学和其他多个机构的研究人员分析了来自60种不同类型癌症的超过1200个肿瘤,鉴定出一个可以使细胞“永生”的基因突变可能在脑瘤、肝癌、舌癌以及泌尿癌中发挥关键作用。相关研究发表在近期出版的《PNAS》杂志上。这一最新研究解答了一个长期困扰研究者们的谜题,即一些恶性细胞如何能够增殖,而正常的细胞却会逐渐减少和死亡。“永生”的关键在于端粒的影响。端粒是染色体末端可以避免染色体粘聚或磨损的标签。当正常细胞分... 查看更多>
    桑福德伯翰医学研究所(SanfordBurnhamPrebysMedicalDiscoveryInstitute,SBP)承担了前所未有的对一个新兴算法类别的比较分析,该算法通过聚焦内部基因结构,在癌症数据库中挖掘遗传信息(即亚基因像素算法),这与专注于基因视其为单个单元的经典方法形成对照。这些强大的数据筛选工具正在帮助人们解决癌症的复杂性,并且发现以前未知的基因突变,这些突变对癌细胞生成起到重要作用。这项研究发表在《自然-方法》(Na 查看更多>
    复旦大学附属儿科医院王建设教授带领博士丘倚灵等,与复旦大学生物医学研究院出生缺陷研究中心邢清和教授、加拿大不列颠哥伦比亚省癌症研究所 Victor Ling 教授等联手,找到了导致婴儿遗传性胆汁淤积症的一个致病基因——MYO5B 基因突变。该研究对今后如何精确治疗婴儿遗传性胆汁淤积症有重要意义。最新一期国际权威期刊 Hepatology 在线发表了这一成果。据悉,婴儿出生 查看更多>
    /* Style Definitions */ table.MsoNormalTable{mso-style-name:普通表格;mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0... 查看更多>
    图片来源:medicalxpress.com最近,来自乌普萨拉大学的研究人员通过研究鉴别出了和结直肠癌转移扩散相关的基因突变,相关研究刊登于国际杂志Cancer Research上,该研究或能帮助科学家鉴别哪些患者能够从未来疗法中获益,同时还能够帮助开发新型策略来监测患者疾病的复发情况。结直肠癌是一种常见的癌症,在瑞典每年大约有6000人会接受结直肠癌的检查,原发性的结直肠癌通常能够通过手术移除来治愈患者,但对于很多类型的癌症而言,一旦 查看更多>
    《科学》杂志官网近日消息称,一项探索非编码DNA的新研究发现,调节基因活性区域的改变也可能导致自闭症,令人惊讶的是,这些变化倾向于从非自闭症的父亲那里继承而来。 过去十 查看更多>
    人类基因突变是指DNA分子中发生碱基对的替换、增添和缺失,而引起的基因结构的改变,叫基因突变(gene mutation)。... 查看更多>
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    P因子随机插入会导致基因发生突变,产生突变体,请问怎么用PCR来鉴定是哪个基因发生突变?求告知讲解,非常感谢!

    :~)
    各位老师:
    我做RNA干扰实验,采用方案是shRNA表达质粒,我的问题就是质粒转染细胞后,是否需要将转染的细胞进行单克隆啊,如果说要单克隆化的话只是筛选就得化很长时间啊,望高手帮助啊?急啊
    1) 克隆减少遗传变异通克隆产体具同遗传基同疾病敏性种疾病毁灭整由克隆产群体 设想家牛群都同克隆产物种并严重病毒能毁灭全畜牧业
    2) 克隆技术使用使倾向于量繁殖现种群利用价值体按自规律促进整种群优胜劣汰意义说克隆技术干扰自进化程.
    3) 克隆技术种昂贵技术需要量金钱物专业士参与失败率非高莉277实验唯虽现发展更先进技术功率能达2-3%
    4) 转基物提高疾病传染风险例产药物牛奶牛染病毒种病毒能通牛奶染病
    5) 克隆技术应用于体导致代遗传性状工控制克隆技术引起争论核能否允许发育初期类胚胎进行遗传操作伦理家所能接受
    6) 克隆技术用创造超或拥健壮体格却智力低且克隆技术能够类效运用男性失遗传意义
    7) 克隆技术家庭关系带影响巨由父亲DNA克隆孩看作父亲双胞胎兄弟延迟几十已难设想发现自另外完全复制品(或)受
    基突变返祖别
    现在看来是一个很古老的话题似的,其实前年8月我写这篇文章的时候相关的文献都找不到几篇的。忽如一夜春风来,铺天盖地的RNAi文章出现。现在看来有点简单,但仍不失为我当年呕血之作。只是肿瘤发表周期太慢而已。
    (题外话)
    谨以此文献给可爱的小海豚,祝暑假在家,在海边玩儿得开心!
          RNA干扰和肿瘤基因治疗
    摘要:RNA干扰(RNAinterference,RNAi)是指双链RNA诱导细胞内特定基因转录后沉默现象,它在肿瘤基因治疗中具有十分重要的作用。本文介绍了RNAi现象的发现、形成机理及其在肿瘤基因治疗中的应用现状及前景。
    关键词:RNA干扰 肿瘤 基因治疗
    Abstract:RNAinterferenceisaphenomenonthatds-RNAs(double-strandedRNA)inducespecificgeneposttranscriptionalsilencingincells.ItsuggeststhatRNAinterferencemayplayanimportantroleintumorgenetherapy.ThisarticleistointroducehowRNAinterferencewasfound, formedaswellasitspotentialapplicationinthetumorgenetherapyfield.
    Keywords:RNAinterference  tumorgenetherapy
    1RNAi现象的发现
    1990年,来自美国的Napoli[1]和荷兰的Krol[2]分别报将外源性紫色色素合成基因查尔酮合酶(ChalconeSynthase,CHS)基因转入矮牵牛,试图产生出更深的紫色牵牛花,结果却发现花色素甙的合成发生了阻塞,大部分转基因植物开出了颜色斑驳或白色的花。检查白色花发现CHS基因mRNA的同步表达没有改变,而mRNA的转录比野生型减少50倍。导入基因和内源性基因均发生失活,这种现象被称为共抑制(co-suppression)。随后多个植物学家亦在不同转基因植物中发现类似现象。与此同时,意大利Macino[3]领导的实验室将外源性类胡萝卜素基因albino-3导入红色面包霉菌(Neurosporacrassa),发现约30%转化细胞的内源性的albino-3也受到了抑制,这种现象被他们称为静息作用(quelling)。
    不仅植物和真菌如此,科学家们还在线虫发现类似的现象。1995年美国的Guo等[4]用反义RNA技术阻断线虫(CaenorhaBDitiselegans)par-1基因的表达以破坏线虫胚胎发育的对称性。结果发现不仅反义RNA能阻断par-1的表达,正义链RNA亦能抑制par-1的表达。他们将其称为RNA干扰。这种现象直到3年以后才得到解释。1998年Fire和Mello[5]公布了他们的实验结果,他们将少量双链RNA(dsRNA)注入线虫,发现内源性基因的mRNA发生特异性裂解。这种只需几分子外源dsRNA就能完全阻断特异内源基因表达的RNA干扰技术又被他们称为转录后基因沉默(post-transcriptionalgenesilencing,PTGS)。紧接着这种现象在果蝇、拟南芥菜、水螅、涡虫、斑马鱼等较多真核生物中得到证实。
    RNA干扰技术研究得最为广泛最为深入的是哺乳类动物。德国科学家Elbashir等[6]用核糖核酸酶III从长链dsRNA切取到21或22个核苷酸(nt)的小干扰RNA双倍体(smallinterferingRNAduplexes,siRNA),将其转入不同的哺乳动物细胞系,能观察到内源性和外源性基因的特异性表达抑制。随后他们又用21-ntsiRNA成功特异性抑制哺乳动物细胞系的16个基因表达,并将这种技术和沉默基因敲除(knockoutofmurinegenes)技术进行比较,证实siRNA干扰技术能更准确、快捷地确定特定基因在生物发育和生长中的功能[7]。他们认为,21-ntsiRNA二倍体技术可能会在哺乳动物细胞基因功能的研究中发挥更大的作用,并有可能被用来进行特异性的基因治疗。荷兰科学家Brummelkamp等[8]则采用一种pSUPER质粒作为载体,这种载体带有一个H1-RNA启动子,克隆入载体的序列转录出来的RNA形成发卡状结构(smallhairpinRNAs,shRNAs),在体内加工后形成类似siRNA分子,能引发基因沉默。这种载体对能够在瞬时转染和稳定转染的哺乳动物细胞中持续表达siRNA,引发更为持久的基因沉默。

    国家自然科学基金资助项目,批准号30170961
    *Tel:(020)61643265,Fax:(020)61643265,E-mail:zjxrx@163.net
    2RNAi的形成机理
      RNAi如何引发基因沉默?其形成机理目前尚不完全清楚。最初Hamilton等[9]发现在发生共抑制植物中发现一些约25个碱基的RNA,这些RNA与沉默基因的正义链和反义链互补,这为揭示RNAi机理提供了重要线索。接着Zamore等[10]发现外源性的dsRNA在果蝇细胞内被切割为约21-23碱基对的双链片段。随后一些与RNAi相关的酶被发现,其中最重要的是dsRNA特异性核酸内切酶(dsRNA-specificendonuclease,DICER),推测该酶具有RNaseⅢ类核酶的性质。目前一般认为可能是dsRNA进入胞体内后可激活RNA核酸酶如DICER,在其作用下形成21-23碱基对的siRNA,siRNA解链或其它原因形成RNA诱导基因沉默复合体(RNA-inducedsilencingcomplex,RISC),这些RISC可专一性地与靶向的mRNA特异性结合,在RNA依赖性RNA多聚酶(RNA-dependentRNApolymerase,RdRP)作用下可形成新的dsRNA,新的dsRNA又被DICER识别而被切断形成siRNA,如此逐级放大式的作用形成大量新的siRNA,使RNAi作用在短时间内有效地抑制mRNA的表达[11]。而不少科学家设计的克隆入特定序列的载体转入靶细胞后能持续表达shRNAs,经修饰后形成siRNA,或者直接将siRNA注入靶细胞,作用原理基本一致。
    3 RNAi在肿瘤基因治疗中的应用
    目前认为RNAi是一种古老的自我防御的进化机制。它的主要作用是防御病毒感染和维持基因组中转座子的稳定。随着对RNAi机理的进一步研究,发现它是一种非常有用的研究工具。现已逐步用于研究基因的功能和了解生物的发育,它比在基因编码区加入选择性标记的基因敲除技术更优越。由于RNAi的技术操作的可行性和致基因沉默特性,已经有学者考虑将其引入肿瘤的基因治疗。
    肿瘤基因治疗按其原理可常规性地分为细胞因子基因治疗、抑癌基因治疗、反义核酸治疗、自杀基因治疗、抗肿瘤血管生成治疗,而RNAi技术的提出只有短短5年时间,实验性应用于治疗肿瘤只有不到2年时间,但已取得不少令人振奋的结果。RNAi理论上有望成为一种新的肿瘤基因治疗方案。
    德国学者Wilda等[12]在应用RNAi治疗白血病方面做出了有益的试尝。他们针对M-BCR/ABL基因设计出21-ntdsRNA,并将其转入白血病细胞系K562,通过实时PCR定量和westernblot检测,发现细胞中不能检测到M-BCR/ABLmRNA和M-BCR/ABL癌蛋白,还能观察到强烈的细胞凋亡现象。实验结果提示利用dsRNA转导能抑制内源性M-BCR/ABL基因mRNA表达,降低细胞恶性型,甚至导致细胞凋亡。随后日本学者Cioca等[13]报道他们设计针对c-raf和bcl-2基因的dsRNA转入髓样白血病细胞系HL-60、U937、THP-1和K562,发现转染后细胞系c-raf和bcl-2基因表达raf-1和bcl-2蛋白明显降低;针对c-raf基因的RNAi作用阻止TPA诱导单细胞分化出现;联合针对c-raf和bcl-2的RNAi能诱导HL-60、U937和THP-1细胞系的凋亡,并增强了其对依托泊甙和柔红霉素的敏感性。作者认为联合针对c-raf和bcl-2的RNAi能克服白血病瘤细胞对化疗药物的抵抗作用,可能为肿瘤治疗提供一条新途径。
    种种迹象表明,用RNAi技术特异性抑制瘤细胞癌基因的表达能在肿瘤基因治疗中扮演重要作用,但怎样将dsRNA导入靶细胞则成为一个难题。显然采用短链dsRNA比长链dsRNA具有很大技术上的可行性,用细胞注射方式转入外源基因在临床基因治疗中是不合适的。Brummelkamp等[14]在构建pSUPER质粒载体的基础上,构建了带有H1-RNA启动子的逆转录病毒载体,设计针对K-RAS(V12)基因的小基因片段,克隆入载体后转至多种人癌细胞系,能持续表达siRNA,观察发现K-RAS(V12)基因被特异性抑制表达,肿瘤细胞恶性型明显降低。作者认为利用病毒载体导入siRNA用于肿瘤特异性基因治疗可抑制癌细胞的致瘤表型。
    随着RNAi技术在肿瘤基因治疗中的试尝不断增多,有必要将其与其它基因治疗方法进行比较。日本学者Aoki等[15]将RNAi技术和反义核酸技术应用于人癌细胞系进行了比较。他们选取人肝癌细胞系和胰癌细胞系作为靶细胞,分别选取外源性的虫荧光素酶基因和内源性的c-raf基因作为靶基因,采用阳离子脂质体和一种他们研制的瘤细胞靶向性肽链作为载体,分别采用RNAi技术和反义核酸技术对靶基因进行干扰。结果提示RNAi技术比反义核酸技术能更有效地抑制人癌细胞系中靶基因的表达,作者认为RNAi技术可能成为一种更新、更有效的基因治疗途径。
    RNAi技术可以采用长链dsRNA,也可以采用短链siRNA,还可以用带启动子的载体转入可以表达核内不均一RNA(heteronuclearRNA,hnRNA)的基因片段。hnRNA技术是指siRNA并非由外源dsRNA直接导入,而是利用带启动子的载体将能表达siRNA的基因导入细胞,在细胞内自行合成siRNA,从而发挥干扰作用。目前认为最持久、稳定沉默靶基因的办法就是hnRNA技术。然而怎样根据靶基因序列寻找最佳干扰位点并设计能转录出hnRNA的基因片段是一个新挑战。有报道只有不到50%的短序列能针对特异基因形成RISC,而只有不到10%能产生特异效果,一位澳大利亚学者Benitec的专利技术能找到针对人类特定基因的最佳干扰位点并设计出带启动子终止子的一段呈反向互补回文结构的DNA序列,利用载体转入靶细胞后即可转录出发卡状mRNA,发挥其干扰作用,其网址为http://www.benitec.com.au/gene-silencing.htm。美国著名RNA产品公司Ambion提供网上在线设计工具,可以用来更快、更有效地寻找最佳干扰位点,网址为http://www.ambion.com/techlib/misc/。目前一般认为,选取的21nt-RNAs应取自靶基因,其5’端应以AA开头,应用Blast到EST基因库搜索,确认靶向性基因是唯一的,siRNA序列GC含量最好在40-55%。
    总之,随着人们对RNAi技术认识的更加深刻,RNAi技术将更广泛地用于肿瘤的治疗。将RNAi技术和其它基因治疗方法结合而设计针对肿瘤的治疗方案,将产生不可估量的潜力,必将探索出一条攻克恶性肿瘤的新路。
     
    参考文献
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    应该:基突变发体细胞通性殖传给代.更确切些!
    基突变代影响
    ①基突变发体细胞丝裂程通性殖传给代,通性繁殖传给代.
    ②基突变发精或卵细胞形减数裂程能通通性殖传给代.
    基突变包括基缺失基突变指DNA碱基增添、缺失替换所引起基结构改变

    美国约翰斯·霍普金斯大学研究人员曾在两年前发表论文说,多数癌症发病要怪“坏运气”,遗传和环境因素影响相对较小。这一结论在科学界引起巨大争议。如今,该校研究人员经进一步分析再次报告说,多数癌症发病确实是因为运气不好。

    干细胞分裂时出现错误

    这项于23日发表在美国《科学》杂志上的新研究称,近三分之二的癌症基因突变可归咎于健康细胞在分裂过程中发生的DNA(脱氧核糖核酸)复制随机错误,而不是遗传基因或环境因素。

    “正常细胞每次分裂时,都会发生几个错误或者说突变。这些突变大多数时候不会造成伤害,因为它们发生在垃圾DNA上、与癌症无关的基因上或者不重要的区域。这是通常情况,按我们的说法这就是好运气,”研究报告作者、约翰斯·霍普金斯大学肿瘤学教授贝尔特·福格尔斯坦在华盛顿举行的记者会上说。“但它们偶然发生在癌症驱动基因上,这就是坏运气。”

    福格尔斯坦等人2015年1月在《科学》杂志上发表文章称,人体组织的癌症风险差异可以用干细胞分裂时出现的错误,即所谓“坏运气”来进行解释,三分之二的癌症基因突变是“坏运气”的结果,另三分之一归因于遗传和环境因素。

    不同观点认为癌症仍可预防

    这一结论随即引起极大争议。许多科学家批评说,该研究完全基于美国癌症患者,没有纳入乳腺癌与前列腺癌两种常见癌症,且严重低估癌症预防的作用,是一种“危险的误导”。

    最新研究中,福格尔斯坦等人基于423个国际癌症数据库,利用数学模型分析了全球近70个国家人群干细胞分裂与癌症风险之间的关系。这些国家的人口总计达48亿,约占全球总人口的三分之二。结果显示,癌症风险和干细胞分裂之间存在强相关性。这种关联具有普遍性,并非仅适用于美国。

    例如,胰腺癌77%的突变可归因于DNA复制随机错误,18%为吸烟等环境因素,只有5%是遗传因素;肺癌的情况则大不一样,65%的突变归因于环境因素,其中主要是吸烟,35%是DNA复制随机错误,而遗传因素没有影响。

    “成百上千万人过着几近完美的生活方式,不吸烟、晒太阳前擦防晒霜、饮食健康、经常锻炼,做了我们认为可以防癌的一切事情,但他们还是患上癌症。我们希望这项研究能为这些患者带来安慰。”福格尔斯坦说。“他们需要知道不管他们做了什么,癌症还是可能会发生。”

    《科学》杂志配发的一篇评论文章说,预计有关癌症“坏运气”理论的争论还会继续下去。还有专家认为,这项研究并不意味着否认通过改善环境和生活方式预防癌症的重要性,英国癌症研究会就认为,42%的癌症病例可以预防。


    小孩基因突变怎么治疗_有问必答_123
    明年今天不失眠2021-08-04
    基突变病
    基因突变不一定是不可遗传变异,而不是一定不能遗传,这点请注意

    主要分两种情况
    1 如果是在受精卵分裂时发生的突变,就有可能是可遗传的,因为全身的细胞都是由受精卵发育来的
    2 如果是已经差不多成形的胎儿 以及之后的整个生命过程中突变则又可分3种情况
    A 发生在体细胞的突变这种是不可遗传的
    B 发生在生殖细胞的突变如果那个突变了的生殖细胞成功地与对方结合形成受精卵的话那么就把突变遗传下去了;如果那个突变的生殖细胞没有被"用到"那也就没有遗传下去
    C如果是体细胞发生的基因突变只能在本体体现,而只有生殖细胞的基因突变才有可能遗传给下一代
    总的的来说就是基因突变在配子或性染色体中可遗传给后代,而发生在体细胞中不会遗传给后代
    希望对你有所帮助,望采纳O(∩_∩)O谢谢~
    基因突变的主要特点:
    普遍性:生物界中普遍存在
    随机性:生物个体发育的任何时期和任何部位都有可能发生
    低频性:突变频率很低
    不定向性:可以产生一个以上的等位基因
    多害少利性:一般是有害的少数是有利的