Ovary-specific novel peroxisome proliferator activated receptors-gamma transcripts in buffalo

Isha Sharma, Rachna Monga, Natwar Singh, Tirtha Kumar Datta, Dheer Singh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


In the present study, we describe the isolation and characterization of the transcripts encoding peroxisome proliferator-activated receptor gamma (PPARγ1 and PPARγ2) in buffalo ovary. 5' RACE experiments and sequence analysis showed that these transcripts (PPARγ1a, PPARγ1b and PPARγ2) were transcribed by the different promoter usage and alternative splicing of terminal 5'-exon. The distribution of these isoforms of PPARγ transcripts in different tissues (ovary, mammary gland, spleen, liver, lung, adipose tissue) was investigated using quantitative real time analysis. Tissue- and transcript-specific expression analyses showed that a transcript, transcribed from distal promoter, not only expressed preferentially in ovary but contributes predominantly to PPAR gamma expression in ovary. Western blot analysis of both, in vivo and in vitro, experiments also supported that PPARγ1 predominantly expressed in ovary. In buffalo granulosa cells culture, the isolated transcripts were found to be up-regulated by both natural (CLA) and synthetic (Rosiglitazone) ligands and effect was reversed by PPARγ antagonist GW9662. In conclusion, the present study identified an ovary-specific novel transcript, transcribed by distal promoter, predominantly expressed in ovary which could have functional relevance in buffalo ovary.

Original languageEnglish (US)
Pages (from-to)245-252
Number of pages8
Issue number2
StatePublished - Aug 10 2012
Externally publishedYes


  • Buffalo
  • Granulosa cells
  • Ovary
  • PPARγ
  • RACE
  • Tissue-specific transcripts

ASJC Scopus subject areas

  • Genetics


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