It is evident that members of several growth factor families are actively involved in embryogenesis from its earliest phases. Several reports also indicate the oviduct as a possible source of growth factors, suggesting an active role of this organ in mammalian embryonic development. The aim of this study was to investigate the presence of activin/inhibin subunits in bovine oviduct since activin is a well-characterised morphogen in amphibian development. The presence of transcripts for alpha, beta A, and beta B subunits was investigated by analysing oviduct epithelial cells mRNA with reverse transcription-polymerase chain reaction (RT-PCR). Moreover, antisera specific for the three subunits were used for the Western blot analysis of the proteins secreted by oviduct epithelial cells in vitro and for their immunohistochemical localisation in different oviductal regions. Oviduct epithelial cells expressed only the beta A-subunit gene. Immunoreactive material was present among in vitro secreted proteins, indicating that the transcript is translated into a polypeptide that has been localised in the epithelium of both the ampullary and isthmic tract of the organ. Consistent with these results, the antisera for the alpha and beta B subunits did not recognise any specific antigen either among secreted proteins or in the sections. These results indicate that beta A subunit gene is expressed in bovine oviduct epithelial cells, and the protein is secreted in vitro and can be found along the whole extension of the organ. In the absence of alpha or beta B subunits, this suggests that activin A is present in bovine oviduct.(ABSTRACT TRUNCATED AT 250 WORDS)

Activin beta A subunit is expressed in bovine oviduct / F. Gandolfi, S. Modina, T. A. Brevini, L. Passoni, P. Artini, F. Petraglia, A. Lauria. - In: MOLECULAR REPRODUCTION AND DEVELOPMENT. - ISSN 1040-452X. - 40:3(1995 Mar), pp. 286-91-291.

Activin beta A subunit is expressed in bovine oviduct

F. Gandolfi
Primo
;
S. Modina
Secondo
;
T. A. Brevini;
1995

Abstract

It is evident that members of several growth factor families are actively involved in embryogenesis from its earliest phases. Several reports also indicate the oviduct as a possible source of growth factors, suggesting an active role of this organ in mammalian embryonic development. The aim of this study was to investigate the presence of activin/inhibin subunits in bovine oviduct since activin is a well-characterised morphogen in amphibian development. The presence of transcripts for alpha, beta A, and beta B subunits was investigated by analysing oviduct epithelial cells mRNA with reverse transcription-polymerase chain reaction (RT-PCR). Moreover, antisera specific for the three subunits were used for the Western blot analysis of the proteins secreted by oviduct epithelial cells in vitro and for their immunohistochemical localisation in different oviductal regions. Oviduct epithelial cells expressed only the beta A-subunit gene. Immunoreactive material was present among in vitro secreted proteins, indicating that the transcript is translated into a polypeptide that has been localised in the epithelium of both the ampullary and isthmic tract of the organ. Consistent with these results, the antisera for the alpha and beta B subunits did not recognise any specific antigen either among secreted proteins or in the sections. These results indicate that beta A subunit gene is expressed in bovine oviduct epithelial cells, and the protein is secreted in vitro and can be found along the whole extension of the organ. In the absence of alpha or beta B subunits, this suggests that activin A is present in bovine oviduct.(ABSTRACT TRUNCATED AT 250 WORDS)
Embryo development; Growth factor; Inhibin
Settore VET/01 - Anatomia degli Animali Domestici
mar-1995
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/183705
Citazioni
  • ???jsp.display-item.citation.pmc??? 3
  • Scopus 33
  • ???jsp.display-item.citation.isi??? 32
social impact