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Zeng J, Xie Y, Zhang H, Zhang Y, Zhang Y, Liu L, Hu Q, Zhou L, Gao L, Tan W, Fu Z, Lu J. Protective roles of tRNA-derived small RNA tRF-Ile-AAT-019 in pathological progression of psoriasis. Exp Dermatol 2023; 32:135-145. [PMID: 36251463 DOI: 10.1111/exd.14689] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 11/27/2022]
Abstract
Psoriasis is a chronic recurrent inflammatory skin disease that is characterized by abnormal proliferation and differentiation of keratinocytes (KCs), angiogenesis and skin inflammation. Transfer RNA fragments (tRFs) are tRNA-derived small RNAs (tsRNAs), which possess regulatory functions in many diseases. Their potential roles in the pathological development of psoriasis have not been established. We first identified differentially expressed (DE) tRFs from psoriatic skin lesions using small RNA sequencing, and collected additional clinical samples for validation. Then, we investigated the function and mechanism of target tRFs in vitro. As a result of our investigation: we identified 234 DE transcripts in psoriatic skin lesions compared with normal controls. Further functional analysis showed the downregulation of tRF-Ile-AAT-019 in psoriatic lesions plays a critical role in pathogenesis since it could target 3'UTR of the serine protease serpin protein E1 (SERPINE1) gene. We next demonstrated that tRF-Ile-AAT-019 could suppress SERPINE1, thus leading to decreased expressions of vascular endothelial growth factor but increased expressions of keratinocytes (KCs) differentiation markers including Keratin1 and Involucrin. In conclusion, tRF-Ile-AAT-019 plays a protective role in the pathological progression of psoriasis via targeting SERPINE1, resulting in regulation of KCs differentiation and vascular proliferation biomarkers and providing a potential novel targeting pathway for the disease treatment.
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Affiliation(s)
- Jinrong Zeng
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yajie Xie
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hanyi Zhang
- XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - Yuezhong Zhang
- XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - Yue Zhang
- XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - Liyao Liu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Hu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lu Zhou
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lihua Gao
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenbin Tan
- Department of Cell Biology and Anatomy, School of Medicine, Columbia, South Carolina, USA.,Department of Biomedical Engineering, College of Engineering and Computing, University of South Carolina, Columbia, South Carolina, USA
| | - Zhibing Fu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jianyun Lu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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Ruan JW, Zhao JF, Li XL, Liao B, Pan L, Zhu KZ, Feng QM, Liu JX, Yu ZE, Song J, Wang H, Liu Z. Characterizing the Neutrophilic Inflammation in Chronic Rhinosinusitis With Nasal Polyps. Front Cell Dev Biol 2022; 9:793073. [PMID: 34977034 PMCID: PMC8718617 DOI: 10.3389/fcell.2021.793073] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/18/2021] [Indexed: 01/05/2023] Open
Abstract
The mechanisms underlying neutrophilic inflammation in chronic rhinosinusitis with nasal polyps (CRSwNP) remain poorly investigated. This study aimed to examine the factors that contribute to tissue neutrophilia in CRSwNP. The numbers of neutrophils and active caspase-3-positive apoptotic neutrophils in sinonasal tissues were assessed via immunofluorescence staining. The 95th percentile of tissue neutrophil numbers in control subjects was selected as a cut-off to define neutrophil-high (Neu-high) or neutrophil-low (Neu-low) nasal polyps (NPs). The levels of 34 inflammatory mediators in sinonasal tissues were analyzed using Bio-Plex assay. Purified human peripheral blood neutrophils were incubated with nasal tissue homogenates, and the apoptotic neutrophils were assessed via flow cytometry. The cut-off for Neu-high NPs was >10 myeloperoxidase positive cells/high-power field. Compared with Neu-low NPs, Neu-high NPs had higher tissue levels of IL-1β, IL-1Ra, IL-6, IL-8, G-CSF, MCP-1, and MIP-1α, but lower levels of IL-5, IL-13, IgE, and eosinophils. Principal component and multiple correspondence analyses revealed mixed type 1, type 2, and type 3 endotypes for Neu-low NPs, and predominant type 1 and type 3 endotypes for Neu-high NPs. Neu-high NPs had lower percentages of apoptotic neutrophils than Neu-low NPs. The numbers of neutrophils and the percentages of apoptotic neutrophils correlated with G-CSF and IL-6 levels in the NPs. Tissue homogenates from Neu-high NPs, but not those from Neu-low NPs, suppressed neutrophil apoptosis in vitro, which was reversed by anti-G-CSF treatment. Tissue neutrophil numbers were associated with difficult-to-treat disease in patients with CRSwNP after surgery. We propose that G-CSF promotes neutrophilic inflammation by inhibiting neutrophil apoptosis in CRSwNP.
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Affiliation(s)
- Jian-Wen Ruan
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie-Fang Zhao
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xue-Li Li
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Liao
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Pan
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ke-Zhang Zhu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qi-Miao Feng
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin-Xin Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zi-E Yu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Song
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hai Wang
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zhang Y, Zhang H, Jiang B, Yan S, Lu J. A promising therapeutic target for psoriasis: Neuropeptides in human skin. Int Immunopharmacol 2020; 87:106755. [PMID: 32736190 DOI: 10.1016/j.intimp.2020.106755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/04/2020] [Accepted: 06/26/2020] [Indexed: 11/29/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease featured by excessive proliferation of keratinocytes, clearly defined round erythema and dry, scaly plaques, long-term inflammatory cells infiltration in skin lesions. However, the physiopathological mechanism of psoriasis is still not clearly understood. Neuropeptides, a class of peptides secreted by the nervous system, may play important roles in promoting excessive proliferation of keratinocyte, enhancing angiogenesis, vasodilation, plasma extravasation and chemotaxis of inflammatory cells during the development of psoriasis. To understand the pathogenesis of neuropeptides in psoriasis, we summarized the function of several common neuropeptides in psoriasis and hypothesize neuropeptides may serve as therapeutic potential novel targets in psoriasis.
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Affiliation(s)
- Yue Zhang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hanyi Zhang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Boyue Jiang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Siyu Yan
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jianyun Lu
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
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