# Proteolytic dysregulation in the skin: insight from rare monogenic skin diseases

**Authors:** Zhongtao Li, Sheng Wang, Diana C. Blaydon, David P. Kelsell

PMC · DOI: 10.1007/s00441-026-04052-x · Cell and Tissue Research · 2026-03-04

## TL;DR

This paper reviews how protease dysregulation contributes to rare skin diseases and explores potential treatments.

## Contribution

The paper provides insights into protease-related mechanisms in monogenic skin diseases and highlights emerging therapeutic approaches.

## Key findings

- Protease and protease inhibitor dysregulation is linked to monogenic skin diseases.
- Disease gene discoveries have enhanced understanding of skin homeostasis and barrier function.
- Emerging therapies target protease-related mechanisms in these diseases.

## Abstract

Proteases are essential enzymes that, through the breakdown of proteins, regulate many aspects of tissue homeostasis including barrier function, cellular signaling, and tissue repair mechanisms in organisms. Disease gene discovery in a number of monogenic skin diseases has deepened the knowledge of how proteases and protease inhibitors can regulate skin homeostasis, keratinocyte desmosome-mediated cell adhesion, and epidermal barrier function. This short review details the association of protease dysregulation with monogenic skin diseases, postulated disease mechanisms, and emerging therapeutic strategies.

## Full-text entities

- **Genes:** CTSC (cathepsin C) [NCBI Gene 1075] {aka CPPI, DPP-I, DPP1, DPPI, HMS, JP}, IL1B (interleukin 1 beta) [NCBI Gene 3553] {aka IL-1, IL1-BETA, IL1F2, IL1beta}, SERPINA12 (serpin family A member 12) [NCBI Gene 145264] {aka OL-64}, ST14 (ST14 transmembrane serine protease matriptase) [NCBI Gene 6768] {aka ARCI11, CAP3, HAI, MT-SP1, MTSP1, PRSS14}, KLK14 (kallikrein related peptidase 14) [NCBI Gene 43847] {aka KLK-L6}, TRPV3 (transient receptor potential cation channel subfamily V member 3) [NCBI Gene 162514] {aka FNEPPK2, OLMS, OLMS1, VRL3}, TNF (tumor necrosis factor) [NCBI Gene 7124] {aka DIF, IMD127, TNF-alpha, TNFA, TNFSF2, TNLG1F}, ADAM17 (ADAM metallopeptidase domain 17) [NCBI Gene 6868] {aka ADAM18, CD156B, CSVP, HYPT16, NISBD, NISBD1}, FURIN (furin, paired basic amino acid cleaving enzyme) [NCBI Gene 5045] {aka FUR, PACE, PCSK3, SPC1}, CAST (calpastatin) [NCBI Gene 831] {aka BS-17, MIR583HG, PLACK}, MBTPS2 (membrane bound transcription factor peptidase, site 2) [NCBI Gene 51360] {aka BRESEK, IFAP, KFSD, KFSDX, OI19, OLMSX}, Csta1 (cystatin A1) [NCBI Gene 209294] {aka Csta}, DSC1 (desmocollin 1) [NCBI Gene 1823] {aka CDHF1, DG2/DG3}, CTSB (cathepsin B) [NCBI Gene 1508] {aka APPS, CPSB, KWE, RECEUP}, IL17A (interleukin 17A) [NCBI Gene 3605] {aka CTLA-8, CTLA8, IL-17, IL-17A, IL17, ILA17}, Cst6 (cystatin E/M) [NCBI Gene 73720] {aka 1110017E11Rik, ichq}, KLK5 (kallikrein related peptidase 5) [NCBI Gene 25818] {aka KLK-L2, KLKL2, SCTE}, F2RL1 (F2R like trypsin receptor 1) [NCBI Gene 2150] {aka GPR11, PAR2}, IL23A (interleukin 23 subunit alpha) [NCBI Gene 51561] {aka IL-23, IL-23A, IL23P19, P19, SGRF}, DSG1 (desmoglein 1) [NCBI Gene 1828] {aka CDHF4, DG1, DSG, EPKHE, EPKHIA, PPKS1}, TSLP (thymic stromal lymphopoietin) [NCBI Gene 85480], IL4 (interleukin 4) [NCBI Gene 3565] {aka BCGF-1, BCGF1, BSF-1, BSF1, IL-4}, Ctsl (cathepsin L) [NCBI Gene 13039] {aka 1190035F06Rik, CatL, Ctsl1, MEP, fs, nkt}, SERPINB8 (serpin family B member 8) [NCBI Gene 5271] {aka C18orf53, CAP2, PI-8, PI8, PSS5}, Lgmn (legumain) [NCBI Gene 19141] {aka AEP, Prsc1}, RHBDF2 (rhomboid 5 homolog 2) [NCBI Gene 79651] {aka RHBDL5, RHBDL6, TOC, TOCG, iRhom2}, SPINK5 (serine peptidase inhibitor Kazal type 5) [NCBI Gene 11005] {aka LEKTI, LETKI, NETS, NS, VAKTI}, IL12B (interleukin 12B) [NCBI Gene 3593] {aka CLMF, CLMF2, IL-12B, IMD28, IMD29, NKSF}, KLK7 (kallikrein related peptidase 7) [NCBI Gene 5650] {aka PRSS6, SCCE, hK7}, SERPINB7 (serpin family B member 7) [NCBI Gene 8710] {aka MEGSIN, PPKN, TP55}, CDSN (corneodesmosin) [NCBI Gene 1041] {aka HTSS, HTSS1, HYPT2, PSS, PSS1}, EGFR (epidermal growth factor receptor) [NCBI Gene 1956] {aka ERBB, ERBB1, ERRP, HER1, NISBD2, NNCIS}, CXCL8 (C-X-C motif chemokine ligand 8) [NCBI Gene 3576] {aka GCP-1, GCP1, IL8, LECT, LUCT, LYNAP}, IL13 (interleukin 13) [NCBI Gene 3596] {aka IL-13, P600}
- **Diseases:** erythematous hyperkeratosis (MESH:D017488), AR (MESH:D013734), punctate keratosis (MESH:D007642), oesophageal squamous cell carcinoma (MESH:D000077277), APSS (MESH:C536316), palmoplantar exfoliation (MESH:D017889), hair abnormalities (MESH:D006201), PLACK syndrome (OMIM:616295), tylosis with oesophageal cancer (MESH:D009369), KWE (MESH:C536155), erythematous plaques (MESH:D003773), AD (MESH:D000544), hyperhidrosis (MESH:D006945), PSS (MESH:C564818), PPK (MESH:D007645), Skin barrier dysfunction (MESH:D012871), cicatricial (MESH:D010390), photophobia (MESH:D020795), oral and oesophageal leukoplakia (MESH:D007972), Matriptase deficiency (MESH:D007153), exfoliative ichthyosis (MESH:C564309), skin and bowel syndrome (MESH:D012778), hypotrichosis (MESH:D007039), leukonychia (OMIM:151600), keratosis follicularis spinulosa decalvans (MESH:C536159), cutaneous inflammation (MESH:D007249), X-linked recessive skin disorders (MESH:D012873), IFAP (MESH:C536085), Nagashima-type palmoplantar keratoderma (OMIM:615598), ARIH (MESH:C536273), HMS (MESH:C537627), inherited monogenic skin disorders (MESH:D012868), cheilitis (MESH:D002613), Erythema and hyperkeratosis (MESH:D004890), atopic eczema (MESH:D003876), PLS (MESH:D010214), psoriasis (MESH:D011565), immune dysregulation (OMIM:614878), OS (MESH:C567932), fungal infection (MESH:D009181), hereditary skin diseases (MESH:D030342), hyperkeratotic desquamation (MESH:D017490), pEDD-arachnodactyly (MESH:D054119), NS (MESH:D056770), EDD (MESH:D012734), cicatricial alopecia (MESH:D000505), ectodermal dysplasia 15 (MESH:D004476), BRESHECK syndrome (MESH:C564519), Olmsted syndrome (OMIM:614594), TOC (MESH:C536164)
- **Chemicals:** GSK951 (-), calcium (MESH:D002118), cholesterol (MESH:D002784), sterol (MESH:D013261), water (MESH:D014867)
- **Species:** Homo sapiens (human, species) [taxon 9606], Mus musculus (house mouse, species) [taxon 10090]
- **Mutations:** p.Arg266*, c.1234T > A, c.800T > C, c.796C > T, c.635-7A > G, c.1048C > T, c.-97_-80del

## Full text

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Source: https://tomesphere.com/paper/PMC12956936