The spatio-temporal expression analysis of parathyroid hormone like hormone gene provides a new insight for bone growth of the antler tip tissue in sika deer

Haihua Xing; Ruobing Han; Qianghui Wang; Zihui Sun; Heping Li

doi:10.5713/ab.23.0421

Animal Bioscience (Aug 2024)

The spatio-temporal expression analysis of parathyroid hormone like hormone gene provides a new insight for bone growth of the antler tip tissue in sika deer

Haihua Xing,
Ruobing Han,
Qianghui Wang,
Zihui Sun,
Heping Li

Affiliations

Haihua Xing: College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
Ruobing Han: College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
Qianghui Wang: College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
Zihui Sun: College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
Heping Li: College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China

DOI: https://doi.org/10.5713/ab.23.0421
Journal volume & issue: Vol. 37, no. 8
pp. 1367 – 1376

Abstract

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Objective Parathyroid hormone like hormone (PTHLH), as an essential factor for bone growth, is involved in a variety of physiological processes. The aim of this study was to explore the role of PTHLH gene in the growth of antlers. Methods The coding sequence (CDS) of PTHLH gene cDNA was obtained by cloning in sika deer (Cervus nippon), and the bioinformatics was analyzed. The quantitative real-time polymerase chain reaction (qRT-PCR) was used to analyze the differences expression of PTHLH mRNA in different tissues of the antler tip at different growth periods (early period, EP; middle period, MP; late period, LP). Results The CDS of PTHLH gene was 534 bp in length and encoded 177 amino acids. Predictive analysis results revealed that the PTHLH protein was a hydrophilic protein without transmembrane structure, with its secondary structure consisting mainly of random coil. The PTHLH protein of sika deer had the identity of 98.31%, 96.82%, 96.05%, and 94.92% with Cervus canadensis, Bos mutus, Oryx dammah and Budorcas taxicolor, which were highly conserved among the artiodactyls. The qRT-PCR results showed that PTHLH mRNA had a unique spatio-temporal expression pattern in antlers. In the dermis, precartilage, and cartilage tissues, the expression of PTHLH mRNA was extremely significantly higher in MP than in EP, LP (p<0.01). In the mesenchyme tissue, the expression of PTHLH mRNA in MP was significantly higher than that of EP (p<0.05), but extremely significantly lower than that of LP (p<0.01). The expression of PTHLH mRNA in antler tip tissues at all growth periods had approximately the same trend, that is, from distal to basal, it was first down-regulated from the dermis to the mesenchyme and then continuously up-regulated to the cartilage tissue. Conclusion PTHLH gene may promote the rapid growth of antler mainly through its extensive regulatory effect on the antler tip tissue.

Published in Animal Bioscience

ISSN: 2765-0189 (Print); 2765-0235 (Online)
Publisher: Asian-Australasian Association of Animal Production Societies
Country of publisher: Korea, Republic of
LCC subjects: Science: Zoology
Website: https://www.animbiosci.org/index.php

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