Journal
LIFE SCIENCES
Volume 278, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2021.119630
Keywords
Keratinocytes; Psoriasis; PI3K; AKT signaling; Sortilin
Funding
- National Natural Science Foundation of China [81803127]
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In this study, it was found that suppressed sortilin expression can inhibit keratinocyte proliferation in HaCaT cells by inactivating the PI3K/AKT signaling pathway, providing a new target for the therapy of psoriasis. Additionally, sortilin silencing was shown to alleviate the characteristic changes associated with psoriasis-like skin lesions.
Sortilin is found to regulate proliferation and death of different cells, while its role in regulating keratinocyte proliferation and apoptosis is still unknown. In this study, we found that sortilin levels significantly increased in psoriasis patients, and sortilin suppression eliminated the proliferation of HaCaT cells induced by M5 cocktail solution and enhanced the levels of cleaved caspase 3 protein and the Bax/Bcl-2 ratio; however, levels of p-PI3K and p-AKT were decreased. In addition, sortilin silencing remitted the characteristic changes associated with psoriasis-like skin lesions. In summary, suppressed sortilin expression helped inhibit keratinocyte proliferation in HaCaT cells by inactivating PI3K/AKT signaling, which provides a new target for the therapy of psoriasis.
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