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Indian Journal of Animal Research

  • Chief EditorM. R. Saseendranath

  • Print ISSN 0367-6722

  • Online ISSN 0976-0555

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Indian Journal of Animal Research, volume 46 issue 2 (june 2012) : 137 - 142

EFFECT OF FSH ON EXPRESSION OF CATHEPSIN K AND S DURING IN VITRO MATURATION OF BUFFALO OOCYTES AND THEIR SUBSEQUENT DEVELOPMENTAL COMPETENCE

Asit Jain*1, 2, Tripti Jain2, G.K. Sachdeva1, S De, S.L. Goswami, T.K. Datta
1Animal Genomics Lab, ABTC, National Dairy Research Institute, Karnal-132001, India

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Cite article:- Jain*1 Asit, 2, Jain2 Tripti, Sachdeva1 G.K., De S, Goswami S.L., Datta T.K. (2025). EFFECT OF FSH ON EXPRESSION OF CATHEPSIN K AND S DURING IN VITRO MATURATION OF BUFFALO OOCYTES AND THEIR SUBSEQUENT DEVELOPMENTAL COMPETENCE. Indian Journal of Animal Research. 46(2): 137 - 142. doi: .

ABSTRACT

Follicle stimulating hormone (FSH) has been identified as a modulator of oocyte function and antiapoptotic molecule. It has been observed that FSH decreased follicular atresia by decreasing the aspartic lysosomal enzyme (cathepsin D) in rodent. In present study, it was determined whether FSH treatment of oocytes during maturation affects expression of cathepsin K and S (cysteine cathepsins) genes, DNA fragmentation during maturation and associated developmental capacity of oocytes. COCs were collected from abattoir derived ovaries and in vitro matured  in TCM-199 based serum-free medium containing 0 (control) and 10 mg/ml FSH at 38.5ºC for 24 hours. After maturation transcript level of cathepsin K and S genes was determined by optimized real time PCR assay in cumulus cells. In vitro fertilization (IVF) and in vitro culture (IVC) of fertilized embryos were carried out in mSOF medium. Terminal deoxynucleotidyl transferase–mediated dUTP nick-end labeling (TUNEL) assay was carried out to count apoptotic cells. It was found that FSH may involve in attenuating cumulus cells apoptosis by decreasing the cathepsin K and S expression, which probably helps in better in-vitro oocytes maturation, in vitro fertilization and further embryonic development.

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