Improvement of in Vitro Oocyte Maturation with Lectin Supplementation and Expression Analysis of Cx43, GDF-9, FGF-4 and Fibronectin MRNA Transcripts in Buffalo (Bubalus Bubalis)

Overview

Journal J Assist Reprod Genet

Publisher Springer

Specialties Genetics
Reproductive Medicine

Date 2009 Jul 25

PMID 19629675

Citations 3

Authors

Alok Pandey

Neelam Gupta

S C Gupta

Affiliations

Soon will be listed here.

Abstract

Purpose: To optimize In vitro maturation (IVM) of quality oocytes for embryo production through IVF and SCNT.

Methods: Buffalo oocytes were in vitro matured in the presence of the pokeweed lectin (Phytolacca americana), a potent lymphocyte mitogen. Lectin was supplemented in TCM + 10% FBS at the doses of 0, 1, 5, 10, 15, 20 and 40 microg/ml and cumulus expansion and gene expression patterns were characterized.

Results: The degree of cumulus expansion in different lectin treatment levels improved from 1.1 at 1 Ag/ml level to 3.60 at 10 microg/ml level and then decreased in higher concentration 20 microg/ml (1.66) and 40 microg/ml (0.64). IVF embryos showed highest cleavage rate (88.8%) in 10 microg/ml lectin treatment. Expression of all mRNA transcript studied (Cx43, GDF 9, FGF-4 and Fibronectin) was positively correlated with cumulus expansion and polar body extrusion.

Conclusions: Mitogenic lectin supplemented maturation media improves oocyte quality for in vitro embryo production.

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