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Huang T, Chen S, Ding K, Zheng B, Lv W, Wang X, Zhong Y, Huang H, Zhang X, Ma S, Yang B, Wang X, Rong Z. SLC35E1 promotes keratinocyte proliferation in psoriasis by regulating zinc homeostasis. Cell Death Dis 2023; 14:354. [PMID: 37296095 PMCID: PMC10256760 DOI: 10.1038/s41419-023-05874-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/04/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
Keratinocyte hyperproliferation is a key pathogenic factor in psoriasis. However, the mechanisms that regulate keratinocyte hyperproliferation in this condition remain unclear. Here, we found that SLC35E1 was highly expressed in keratinocytes of patients with psoriasis and that Slc35e1-/- mice displayed a less severe imiquimod (IMQ)-induced psoriasis-like phenotype than their wild-type siblings. In addition, SLC35E1 deficiency inhibited keratinocyte proliferation in both mice and cultured cells. On a molecular level, SLC35E1 was found to regulate zinc ion concentrations and subcellular localization, while zinc ion chelation reversed the IMQ-induced psoriatic phenotype in Slc35e1-/- mice. Meanwhile, epidermal zinc ion levels were decreased in patients with psoriasis and zinc ion supplementation alleviated the psoriatic phenotype in an IMQ-induced mouse model of psoriasis. Our results indicated that SLC35E1 can promote keratinocyte proliferation by regulating zinc ion homeostasis and zinc ion supplementation has potential as a therapy for psoriasis.
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Affiliation(s)
- Tao Huang
- Cancer Research Institute, School of Basic Medical Sciences, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Southern Medical University, Guangzhou, 510515, China
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Shijun Chen
- Cancer Research Institute, School of Basic Medical Sciences, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Southern Medical University, Guangzhou, 510515, China
| | - Ke Ding
- Cancer Research Institute, School of Basic Medical Sciences, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Southern Medical University, Guangzhou, 510515, China
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Baoqing Zheng
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Weiqi Lv
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Xiaobo Wang
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Yadan Zhong
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Hongxin Huang
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Xin Zhang
- Cancer Research Institute, School of Basic Medical Sciences, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Southern Medical University, Guangzhou, 510515, China
- Affiliated Dongguan Hospital, Southern Medical University, (Dongguan People's Hospital), Dongguan, 523058, China
| | - Shufeng Ma
- Cancer Research Institute, School of Basic Medical Sciences, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Southern Medical University, Guangzhou, 510515, China
- Department of Nephrology, Shenzhen Hospital, Southern Medical University, Shenzhen, 518110, China
| | - Bin Yang
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China.
| | - Xiaohua Wang
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China.
| | - Zhili Rong
- Cancer Research Institute, School of Basic Medical Sciences, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Southern Medical University, Guangzhou, 510515, China.
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China.
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