Abstract
A previous study indicated that patients with androgenic alopecia (AGA) have significantly reduced levels of LncRNA RP11-818O24.3. This study investigates whether LncRNA RP11-818O24.3 promotes hair-follicle recovery and its possible mechanism. Hair alteration and cutaneous histopathological changes induced by testosterone propionate were observed by H&E and bromodeoxyuridinc (BrdU) stain to evaluate the therapeutic effect of LncRNA RP11-818O24.3 in C57BL/6 J mice. The cellular viability was analyzed in LncRNA RP11-818O24.3-transfected human hair-follicle stem cells (HFSCs) in vitro. The signaling pathways and pro-proliferative factors were investigated by transcriptomic gene sequencing and qRT-PCR. LncRNA RP11-818O24.3 transfection successfully recovered hair growth and hair-follicle cells in AGA mice. In a series of HFSC studies in vitro, LncRNA RP11-818O24.3 transfection greatly promoted cellular proliferation and decreased cellular apoptosis. Transcriptome gene sequencing suggested that the phosphatidylinositol 3-kinase (PI3K)-Akt pathway was upregulated by LncRNA RP11-818O24.3. The qRT-PCR results showed that fibroblast growth factor (FGF)-2 was 14-times upregulated after LncRNA RP11-818O24.3 transfection. Hair-follicle recovery activity of LncRNA RP11-818O24.3 may involve the upregulation of FGF2 and PI3K-Akt to promote follicle stem cell survival. These data not only provide a theoretical basis for AGA development but also reveal a novel therapeutic method for AGA patients.
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Data availability
The datasets generated and analyzed during the current study are available in Dryad repository. URL: https://datadryad.org/stash/share/P6kBKS0PY68Eu72bORWcoS-LxtMq2sKLjewHg5fYwy4https://doi.org/10.5061/dryad.k3j9kd5d7.
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Acknowledgements
We are grateful to our colleagues in the Dermatology Department of the 2nd Clinical Medical College of Jinan University for their cooperation and support while performing this study.
Funding
This study was supported by the National Natural Science Foundation of China (No. 82203955) and the Science and Technology Innovation Committee Project of Shenzhen (No. JCYJ20220530152610023).
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LB and JZ contributed to the conception and the design of the study and also contributed to manuscript drafting. ZS, QZ and LD contributed to analysis and interpretation of the data. FY and LZ approved of the final manuscript version to be published. LB can confirm the authenticity of the raw data.
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Animal experiments were approved by the Ethical Committee of the Southern University of Science and Technology (No. SUSTech-JY202202026). We confirm that all methods were carried out in accordance with relevant guidelines and regulations. All methods are reported in accordance with the ARRIVE guidelines.
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Bao, L., Sun, Z., Dang, L. et al. LncRNA RP11-818O24.3 promotes hair-follicle recovery via FGF2-PI3K/Akt signal pathway. Cytotechnology (2024). https://doi.org/10.1007/s10616-024-00624-3
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DOI: https://doi.org/10.1007/s10616-024-00624-3