Article (Scientific journals)
Purification of pregnancy-associated glycoproteins from late-pregnancy Bubalus bubalis placentas and development of a radioimmunoassay for pregnancy diagnosis in water buffalo females.
Barbato, Olimpia; Melo de Sousa, Noelita; Barile, Vittoria Lucia et al.
2013In BMC Veterinary Research, 9, p. 89
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Keywords :
Water buffalo; Placenta; Pregnancy-associated glycoprotein; Purification; Radioimmunoassay; Polyclonal; Pregnancy diagnosis; N-terminal amino acid sequence
Abstract :
[en] BACKGROUND: Pregnancy-associated glycoproteins (PAGs) were first described as placental antigens present in the blood serum of the mother soon after implantation. Here, we describe the purification of several pregnancy-associated glycoproteins from water buffalo placenta (wbPAGs). A specific radioimmunoassay (RIA) was developed for early pregnancy diagnosis in buffalo species. RESULTS: Amino-terminal microsequencing of immunoreactive placental proteins allowed the identification of eleven wbPAGs sequences [Swiss-Prot accession numbers: P86369 to P86379]. Three polyclonal antisera (AS#858, AS#859 and AS#860) were raised in rabbits against distinct wbPAG fractions. A new RIA (RIA-860) was developed and used to distinguish between pregnant (n = 33) and non-pregnant (n = 26) water buffalo females. CONCLUSIONS: Our results confirmed the multiplicity of PAG expression in buffalo placenta. In addition, the RIA-860 system was shown to be sensitive, linear, reproducible, accurate and specific in measuring PAG concentrations in buffalo plasma samples from Day 37 of gestation onwards.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Barbato, Olimpia;  University of Perugia, Perugia 06126, Italy > Department of Biopathological Veterinary Science, Faculty of Veterinary Medicine
Melo de Sousa, Noelita ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Barile, Vittoria Lucia
Canali, Claudio
Beckers, Jean-François  ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Language :
English
Title :
Purification of pregnancy-associated glycoproteins from late-pregnancy Bubalus bubalis placentas and development of a radioimmunoassay for pregnancy diagnosis in water buffalo females.
Publication date :
2013
Journal title :
BMC Veterinary Research
eISSN :
1746-6148
Publisher :
BioMed Central, United Kingdom
Volume :
9
Pages :
89
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 June 2013

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