Garza-Rodríguez ML, Rodríguez-Sanchez IP, González-Álvarez R, Luna M, Burciaga-Flores CH, Alcorta-Nuñez F, Solis-Coronado O, Bautista de Lucio VM, Ramírez-Correa GA, Vidal-Gutiérrez O, Pérez-Ibave DC. Prolactin Expression in the Baboon (
Papio hamadryas) Eye.
Animals (Basel) 2022;
12:2288. [PMID:
36078009 PMCID:
PMC9455022 DOI:
10.3390/ani12172288]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 01/14/2023] Open
Abstract
Prolactin (PRL) is a hormone expressed in lactotrophs cells of the pituitary gland in primates. Extra pituitary expression of PRL has been reported, including the eye; however, expression in the developing eye of primates is limited. The aim of the study was determining the expression of PRL and PRL receptor (PRLR) (mRNAs and proteins) in adult and fetal baboon (Papio hamadryas) ocular tissues.
METHODS
We analyzed PRL and PRLR in baboon eyes tissues by immunofluorescence. The mRNAs of PRL and PRLR were detected by RT-PCR, cDNA was cloned, and sequenced. Furthermore, we performed a phylogenetic analysis to identify the evolutionary forces that underlie the divergence of PRL and PRLR primate genes.
RESULTS
We observed the expression of PRL and PRLR (mRNAs and proteins) in all retinal cell lineages of fetal and adult baboon. PRL and PRLR fit the hypothesis of evolutionary purifying gene selection.
CONCLUSIONS
mRNA and protein of PRL and PRLR are expressed in fetal and adult baboon retinal tissue. PRL may trigger autocrine and paracrine-specific actions in retinal cell lines.
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