Live birth of somatic cell-cloned rabbits following trichostatin a treatment and cotransfer of parthenogenetic embryos

Qinggang Meng, Zsuzsanna Polgar, Jun Liu, A. Dinnyés

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Somatic cell nuclear transfer (SCNT) efficiency is still low in rabbit. Previous studies indicated that trichostatin A (TSA) treatment could improve cloning efficiency and term development in the mouse, and cotransfer of parthenogenetic (PA) embryos benefited the pregnancy of cloned embryos in porcine and the mouse. In this study we investigated the effect of TSA treatment on the term development of the SCNT rabbit embryos, and the possibility of the pregnancy maintenance of clones by cotransfer of PA embryos. The SCNT embryos were produced by fusing cumulus cells with enucleated cytoplasts before activation by electrical stimulation, and Dimethylaminopurine (6-DMAP) and Cyclohexamide (CHX) treatments. They were cultured in EBSS-complete medium regardless of their treatment with or without TSA. In vitro developmental data showed no differences in the cleavage and the blastocyst rates, and the blastocyst cell number between the TSA-treated and the untreated SCNT embryos. Two of the six recipients became pregnant after the embryo transfer (ET) in the TSA-treated group, and one pregnant female delivered seven live and three stillborn pups. The death of all live pups occurred within an hour to 19 days. Four of the seven recipients became pregnant in the TSA-untreated group. Three of them gave birth to six live and eight stillborn pups. Four pups of the TSA-untreated group have grown into adulthood, and three of them produced progeny. Cotransfer of three to four PA embryos with 26-32 SCNT embryos to the same recipient resulted in pregnancy and birth rates statistically no different compared to the control SCNT ET group. In conclusion, our results indicate that TSA treatment has a limited effect on the in vitro development of the SCNT embryos; furthermore, both the TSA-treated and the untreated clones can develop to term in rabbits, but none of the offspring from TSA-treated embryos survived to adulthood in our experiment.

Original languageEnglish
Pages (from-to)203-208
Number of pages6
JournalCloning and Stem Cells
Volume11
Issue number1
DOIs
Publication statusPublished - Mar 1 2009

Fingerprint

trichostatin A
Live Birth
Embryo Transfer
Embryonic Structures
Rabbits
Therapeutics
Blastocyst
Clone Cells
Pregnancy Maintenance
Cumulus Cells
Birth Rate
Pregnancy Rate
Electric Stimulation
Organism Cloning

ASJC Scopus subject areas

  • Biotechnology
  • Developmental Biology

Cite this

Live birth of somatic cell-cloned rabbits following trichostatin a treatment and cotransfer of parthenogenetic embryos. / Meng, Qinggang; Polgar, Zsuzsanna; Liu, Jun; Dinnyés, A.

In: Cloning and Stem Cells, Vol. 11, No. 1, 01.03.2009, p. 203-208.

Research output: Contribution to journalArticle

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