Next Article in Journal
A Novel Methoxybenzyl 5-Nitroacridone Derivative Effectively Triggers G1 Cell Cycle Arrest in Chronic Myelogenous Leukemia K562 Cells by Inhibiting CDK4/6-Mediated Phosphorylation of Rb
Next Article in Special Issue
Structural Features of Carnivorous Plant (Genlisea, Utricularia) Tubers as Abiotic Stress Resistance Organs
Previous Article in Journal
HLA-G Expression in Human Mesenchymal Stem Cells (MSCs) Is Related to Unique Methylation Pattern in the Proximal Promoter as well as Gene Body DNA
Previous Article in Special Issue
Cartilage Homeostasis Affects Femoral Head Necrosis Induced by Methylprednisolone in Broilers
Article

Expression Profiling and Functional Characterization of miR-26a and miR-130a in Regulating Zhongwei Goat Hair Development via the TGF-β/SMAD Pathway

1
Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
2
The Ningxia Hui Autonomous Region Breeding Ground of Zhongwei Goat, Zhongwei 755000, China
3
Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 625014, China
4
International Center for Agricultural Research in the Dry Areas, Addis Ababa 1000, Ethiopia
5
CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Int. J. Mol. Sci. 2020, 21(14), 5076; https://doi.org/10.3390/ijms21145076
Received: 11 May 2020 / Revised: 9 July 2020 / Accepted: 14 July 2020 / Published: 18 July 2020
The Zhongwei goat is an important and unique goat breed indigenous to China. It has a natural hair curling phenotype at birth, but the degree of curling gradually decreases with growth. The molecular mechanism underlying the dynamic changes in the wool curvature in Zhongwei goats is poorly understood. MicroRNAs (miRNAs) play important roles in many biological processes, including hair growth and development. In this study, we selected skins from Zhongwei goats at different ages (45 and 108 days) that exhibited different levels of hair curvature and performed miRNA sequencing to explore the molecular mechanism of hair bending. In total, 28 significantly differentially expressed miRNAs (DE miRNAs) were identified in the three groups of samples between the two developmental stages. An analysis of the target genes of the above-mentioned DE miRNAs by the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses indicated that the DE miRNAs were involved in signal pathways which were previously associated with hair bending and hair follicle development, such as the TGF-β/SMAD, PI3K-Akt, JAK-STAT, and MAPK pathways. A comprehensive analysis of the correlations between the miRNA-seq results and issued transcriptional findings indicated that SMAD1 was a target gene of miR-26a and SMAD5 was a target gene of miR-130a. Furthermore, goat dermal papilla cells were successfully isolated and purified to determine the role of miRNAs in follicle development in vitro. The study results demonstrated that miR-130a and miR-26a had significant effects on the proliferation of dermal papilla cells. In addition, the detection results of mRNA and protein levels indicate that the overexpression of miR-26a can promote the expression of related genes in the TGF-β/SMAD pathway, while miR-130a has the opposite substitution effect. The dual luciferase report test showed that miR-26a targeted the SMAD1 gene and reduced the expression of the SMAD1 protein in hair papillary cells. Our results identified DE microRNAs which perhaps change at the time of hair straightening in Zhongwei goats and explore the role of miR-26a and miR-130a in dermal papilla cells proliferation. The present study provided a theoretical basis to explore the mechanisms underlying the Zhongwei hair growth and curly phenotype. View Full-Text
Keywords: Zhongwei goat; microRNA; curly hair; papilla cells; TGF-β/SMAD Zhongwei goat; microRNA; curly hair; papilla cells; TGF-β/SMAD
Show Figures

Figure 1

MDPI and ACS Style

Ding, Y.; Xue, X.; Liu, Z.; Ye, Y.; Xiao, P.; Pu, Y.; Guan, W.; Mwacharo, J.M.; Ma, Y.; Zhao, Q. Expression Profiling and Functional Characterization of miR-26a and miR-130a in Regulating Zhongwei Goat Hair Development via the TGF-β/SMAD Pathway. Int. J. Mol. Sci. 2020, 21, 5076. https://doi.org/10.3390/ijms21145076

AMA Style

Ding Y, Xue X, Liu Z, Ye Y, Xiao P, Pu Y, Guan W, Mwacharo JM, Ma Y, Zhao Q. Expression Profiling and Functional Characterization of miR-26a and miR-130a in Regulating Zhongwei Goat Hair Development via the TGF-β/SMAD Pathway. International Journal of Molecular Sciences. 2020; 21(14):5076. https://doi.org/10.3390/ijms21145076

Chicago/Turabian Style

Ding, Yangyang, Xianglan Xue, Zhanfa Liu, Yong Ye, Ping Xiao, Yabin Pu, Weijun Guan, Joram M. Mwacharo, Yuehui Ma, and Qianjun Zhao. 2020. "Expression Profiling and Functional Characterization of miR-26a and miR-130a in Regulating Zhongwei Goat Hair Development via the TGF-β/SMAD Pathway" International Journal of Molecular Sciences 21, no. 14: 5076. https://doi.org/10.3390/ijms21145076

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop