1
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Smart paradigm to predict copper surface area of Cu/ZnO/Al2O3 catalyst based on synthesis parameters. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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2
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Matus CE, Ehrenfeld P, Figueroa CD. The family of kallikrein-related peptidases and kinin peptides as modulators of epidermal homeostasis. Am J Physiol Cell Physiol 2022; 323:C1070-C1087. [PMID: 35993513 DOI: 10.1152/ajpcell.00012.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The epidermis is the outermost skin layer and is part of one of the largest organs in the body; it is supported by the dermis, a network of fibrils, blood vessels, pilosebaceous units, sweat glands, nerves, and cells. The skin as a whole is a protective shield against numerous noxious agents, including microorganisms and chemical and physical factors. These functions rely on the activity of multiple growth factors, peptide hormones, proteases, and specific signaling pathways that are triggered by the activation of distinct types of receptors sited in the cell membranes of the various cell types present in the skin. The human kallikrein family comprises a large group of 15 serine proteases synthesized and secreted by different types of epithelial cells throughout the body, including the skin. At this site, they initiate a proteolytic cascade that generates the active forms of the proteases, some of which regulate skin desquamation, activation of cytokines, and antimicrobial peptides. Kinin peptides are formed by the action of plasma and tissue kallikreins on kininogens, two plasma proteins produced in the liver and other organs. Although kinins are well known for their proinflammatory abilities, in the skin they are also considered important modulators of keratinocyte differentiation. In this review, we summarize the contributions of the kallikreins and kallikrein-related peptidases family and those of kinins and their receptors in skin homeostasis, with special emphasis on their pathophysiological role.
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Affiliation(s)
- Carola E Matus
- Departament of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile.,Center of Molecular Biology and Pharmacogenetics, Universidad de La Frontera, Temuco, Chile.,Center of Biomedical and Morphofunctional Sciences, Universidad de La Frontera, Temuco, Chile
| | - Pamela Ehrenfeld
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile.,Center for Interdisciplinary Studies on Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Carlos D Figueroa
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile.,Center for Interdisciplinary Studies on Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
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3
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Morizane S, Sunagawa K, Nomura H, Ouchida M. Aberrant serine protease activities in atopic dermatitis. J Dermatol Sci 2022; 107:2-7. [PMID: 35817663 DOI: 10.1016/j.jdermsci.2022.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/19/2022] [Accepted: 06/26/2022] [Indexed: 10/17/2022]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease; the three major factors responsible for AD, i.e., epidermal barrier dysfunction, allergic inflammation, and itching, interact with each other to form a pathological condition. Excessive protease activities are characteristic abnormalities that affect the epidermal barrier in patients with AD. In normal skin, epidermal serine protease activities are controlled by kallikrein-related peptidases (KLKs) and their inhibitors, including lympho-epithelial Kazal-type-related inhibitor (LEKTI). In AD lesions, KLKs are excessively expressed, which results in the enhancement of epidermal serine protease activities and facilitates the invasion by allergens and microorganisms. In addition, some KLKs can activate protease-activated receptor 2 (PAR2) in epidermal keratinocytes and peripheral nerves, resulting in the induction of inflammation and itching. Furthermore, in AD patients with single nucleotide polymorphism (SNP) such as E420K and D386N of SPINK5 which encodes LEKTI, LEKTI function is attenuated, resulting in the activation of KLKs and easy invasion by allergens and microorganisms. Further analysis is needed to elucidate the detailed mechanism underlying the control of serine protease activities, which may lead to the development of new therapeutic and prophylactic agents for AD.
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Affiliation(s)
- Shin Morizane
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan.
| | - Ko Sunagawa
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Hayato Nomura
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Mamoru Ouchida
- Department of Molecular Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
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4
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Loricrin at the Boundary between Inside and Outside. Biomolecules 2022; 12:biom12050673. [PMID: 35625601 PMCID: PMC9138667 DOI: 10.3390/biom12050673] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 02/04/2023] Open
Abstract
Cornification is a specialized mode of the cell-death program exclusively allowed for terrestrial amniotes. Recent investigations suggest that loricrin (LOR) is an important cornification effector. As the connotation of its name (“lorica” meaning an armor in Latin) suggests, the keratin-associated protein LOR promotes the maturation of the epidermal structure through organizing covalent cross-linkages, endowing the epidermis with the protection against oxidative injuries. By reviewing cornification mechanisms, we seek to classify ichthyosiform dermatoses based on their function, rather than clinical manifestations. We also reviewed recent mechanistic insights into the Kelch-like erythroid cell-derived protein with the cap “n” collar homology-associated protein 1/nuclear factor erythroid 2-related factor 2 (NRF2) signaling pathway in skin health and diseases, as LOR and NRF2 coordinate the epidermis-intrinsic xenobiotic metabolism. Finally, we refine the theoretical framework of cross-talking between keratinocytes and epidermal resident leukocytes, dissecting an LOR immunomodulatory function.
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5
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Beck LA, Cork MJ, Amagai M, De Benedetto A, Kabashima K, Hamilton JD, Rossi AB. Type 2 Inflammation Contributes to Skin Barrier Dysfunction in Atopic Dermatitis. JID INNOVATIONS 2022; 2:100131. [PMID: 36059592 PMCID: PMC9428921 DOI: 10.1016/j.xjidi.2022.100131] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 01/02/2023] Open
Abstract
Skin barrier dysfunction, a defining feature of atopic dermatitis (AD), arises from multiple interacting systems. In AD, skin inflammation is caused by host-environment interactions involving keratinocytes as well as tissue-resident immune cells such as type 2 innate lymphoid cells, basophils, mast cells, and T helper type 2 cells, which produce type 2 cytokines, including IL-4, IL-5, IL-13, and IL-31. Type 2 inflammation broadly impacts the expression of genes relevant for barrier function, such as intracellular structural proteins, extracellular lipids, and junctional proteins, and enhances Staphylococcus aureus skin colonization. Systemic anti‒type 2 inflammation therapies may improve dysfunctional skin barrier in AD.
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Key Words
- AD, atopic dermatitis
- AMP, antimicrobial peptide
- CLDN, claudin
- FFA, free fatty acid
- ILC2, type 2 innate lymphoid cell
- Jaki, Jak inhibitor
- K, keratin
- KC, keratinocyte
- MMP, matrix metalloproteinase
- NMF, natural moisturizing factor
- PAR, protease-activated receptor
- PDE-4, phosphodiesterase-4
- SC, stratum corneum
- SG, stratum granulosum
- TCI, topical calcineurin inhibitor
- TCS, topical corticosteroid
- TEWL, transepidermal water loss
- TJ, tight junction
- TLR, toll-like receptor
- TNF-α, tumor necrosis factor alpha
- TYK, tyrosine kinase
- Th, T helper
- ZO, zona occludens
- hBD, human β-defensin
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Affiliation(s)
- Lisa A. Beck
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York, USA,Correspondence: Lisa A. Beck, Department of Dermatology, University of Rochester Medical Center, 601 Elmwood Ave, Box 697, Rochester, New York 14642, USA.
| | - Michael J. Cork
- Sheffield Dermatology Research, Department of Infection, Immunity and Cardiovascular Disease (IICD), The University of Sheffield, The Medical School, Sheffield, United Kingdom
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan,Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Anna De Benedetto
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York, USA
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto University, Kyoto, Japan
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6
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Jung SW, Park GH, Kim E, Yoo KM, Kim HW, Lee JS, Chang MY, Shin KO, Park K, Choi EH. Rosmarinic Acid, as an NHE1 Activator, Decreases Skin Surface pH and Improves the Skin Barrier Function. Int J Mol Sci 2022; 23:3910. [PMID: 35409270 PMCID: PMC8999067 DOI: 10.3390/ijms23073910] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/25/2023] Open
Abstract
Stratum corneum (SC) pH regulates skin barrier functions and elevated SC pH is an important factor in various inflammatory skin diseases. Acidic topical formulas have emerged as treatments for impaired skin barriers. Sodium proton exchanger 1 (NHE1) is an important factor in SC acidification. We investigated whether topical applications containing an NHE1 activator could improve skin barrier functions. We screened plant extracts to identify NHE1 activators in vitro and found Melissa officinalis leaf extract. Rosmarinic acid, a component of Melissa officinalis leaf extract, significantly increased NHE1 mRNA expression levels and NHE1 production. Immunofluorescence staining of NHE1 in 3D-cultured skin revealed greater upregulation of NHE1 expression by NHE1 activator cream, compared to vehicle cream. Epidermal lipid analysis revealed that the ceramide level was significantly higher upon application of the NHE1 activator cream on 3D-cultured skin, compared to application of a vehicle cream. In a clinical study of 50-60-year-old adult females (n = 21), application of the NHE1 activator-containing cream significantly improved skin barrier functions by reducing skin surface pH and transepidermal water loss and increasing skin hydration, compared to patients who applied vehicle cream and those receiving no treatment. Thus, creams containing NHE1 activators, such as rosmarinic acid, could help maintain or recover skin barrier functions.
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Affiliation(s)
- Seung-Won Jung
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (S.-W.J.); (E.K.)
| | - Gi Hyun Park
- CMS LAB, Seoul 35324, Korea; (G.H.P.); (K.M.Y.); (H.W.K.); (J.S.L.)
| | - Eunjung Kim
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (S.-W.J.); (E.K.)
| | - Kang Min Yoo
- CMS LAB, Seoul 35324, Korea; (G.H.P.); (K.M.Y.); (H.W.K.); (J.S.L.)
| | - Hea Won Kim
- CMS LAB, Seoul 35324, Korea; (G.H.P.); (K.M.Y.); (H.W.K.); (J.S.L.)
| | - Jin Soo Lee
- CMS LAB, Seoul 35324, Korea; (G.H.P.); (K.M.Y.); (H.W.K.); (J.S.L.)
| | | | - Kyong-Oh Shin
- Department of Food Science and Nutrition, Convergence Program of Material Science for Medicine and Pharmaceutics, Hallym University, Chuncheon 24252, Korea; (K.-O.S.); (K.P.)
| | - Kyungho Park
- Department of Food Science and Nutrition, Convergence Program of Material Science for Medicine and Pharmaceutics, Hallym University, Chuncheon 24252, Korea; (K.-O.S.); (K.P.)
| | - Eung Ho Choi
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (S.-W.J.); (E.K.)
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Hikmawati D, Fakih TM, Sutedja E, Dwiyana RF, atik N, Ramadhan DSF. Pharmacophore-guided virtual screening and dynamic simulation of Kallikrein-5 inhibitor: Discovery of potential molecules for rosacea therapy. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2022.100844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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8
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Peters F, Rahn S, Mengel M, Scharfenberg F, Otte A, Koudelka T, Wagner EF, Wunderlich FT, Haase M, Naumann R, Tholey A, Becker-Pauly C. Syndecan-1 shedding by meprin β impairs keratinocyte adhesion and differentiation in hyperkeratosis. Matrix Biol 2021; 102:37-69. [PMID: 34508852 DOI: 10.1016/j.matbio.2021.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/06/2021] [Accepted: 08/31/2021] [Indexed: 11/25/2022]
Abstract
Dysregulation of proteolytic enzymes has huge impact on epidermal homeostasis, which can result in severe pathological conditions such as fibrosis or Netherton syndrome. The metalloprotease meprin β was found to be upregulated in hyperproliferative skin diseases. AP-1 transcription factor complex has been reported to induce Mep1b expression. Since AP-1 and its subunit fos-related antigen 2 (fra-2) are associated with the onset and progression of psoriasis, we wanted to investigate if this could partially be attributed to increased meprin β activity. Here, we demonstrate that fra-2 transgenic mice show increased meprin β expression and proteolytic activity in the epidermis. To avoid influence by other fra-2 regulated genes, we additionally generated a mouse model that enabled tamoxifen-inducible expression of meprin β under the Krt5-promotor to mimic the pathological condition. Interestingly, induced meprin β expression in the epidermis resulted in hyperkeratosis, hair loss and mottled pigmentation of the skin. Employing N-terminomics revealed syndecan-1 as a substrate of meprin β in skin. Shedding of syndecan-1 at the cell surface caused delayed calcium-induced differentiation and impaired adhesion of keratinocytes, which was blocked by the meprin β inhibitor fetuin-B.
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Affiliation(s)
- Florian Peters
- Biochemical Institute, Christian-Albrechts-University of Kiel, Kiel 24118, Germany; Laboratory for Retinal Cell Biology, Department of Ophthalmology, University Hospital Zurich, University of Zurich, Schlieren, Zurich 8952, Switzerland
| | - Sascha Rahn
- Biochemical Institute, Christian-Albrechts-University of Kiel, Kiel 24118, Germany
| | - Marion Mengel
- Biochemical Institute, Christian-Albrechts-University of Kiel, Kiel 24118, Germany
| | - Franka Scharfenberg
- Biochemical Institute, Christian-Albrechts-University of Kiel, Kiel 24118, Germany
| | - Anna Otte
- Biochemical Institute, Christian-Albrechts-University of Kiel, Kiel 24118, Germany
| | - Tomas Koudelka
- Institute for Experimental Medicine, Christian-Albrechts-University of Kiel, Kiel 24118, Germany
| | - Erwin F Wagner
- Laboratory Genes and Disease, Department of Dermatology and Department of Laboratory Medicine, Medical University of Vienna, Vienna 1090, Austria
| | - F Thomas Wunderlich
- Center for Endocrinology, Diabetes and Preventive Medicine (CEDP), Max Planck Institute for Metabolism Research, Cologne 50931, Germany
| | - Michael Haase
- Department of Pediatric Surgery, Medical Faculty, Dresden University, Dresden 01307, Germany
| | - Ronald Naumann
- MPI of Molecular Cell Biology and Genetics, Dresden 01307, Germany
| | - Andreas Tholey
- Institute for Experimental Medicine, Christian-Albrechts-University of Kiel, Kiel 24118, Germany
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9
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Wladis EJ, Adam AP. Immune signaling in rosacea. Ocul Surf 2021; 22:224-229. [PMID: 34481075 DOI: 10.1016/j.jtos.2021.08.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 11/29/2022]
Abstract
Rosacea is a common chronic skin disease affecting mostly people aged 40 and above, with currently no cure. When it affects the eyelids and periocular skin, it leads to dry eye and potentially corneal damage. Research performed over the last decade shed light into the potential mechanisms leading to skin hypersensitivity and provided promising avenues for development of novel, rational therapeutics aimed at reducing the skin inflammatory state. In this review, we discuss the current knowledge on the mechanisms of rosacea in general and of periocular skin-affecting disease in particular, identify key questions that remain to be answered in future research, and offer a disease model that can explain the key characteristics of this disease, with particular emphasis on a potential positive feedback loop that could explain both the acute and chronic features of rosacea.
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Affiliation(s)
- Edward J Wladis
- Lions Eye Institute, Department of Ophthalmology, Albany Medical College, 1220 New Scotland Rd, Suite 302, Slingerlands, NY, 12159, United States.
| | - Alejandro P Adam
- Department of Molecular and Cellular Physiology and Department of Ophthalmology, Albany Medical College, United States
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10
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Hua Q, Li T, Liu Y, Shen X, Zhu X, Xu P. Upregulation of KLK8 Predicts Poor Prognosis in Pancreatic Cancer. Front Oncol 2021; 11:624837. [PMID: 34395235 PMCID: PMC8362328 DOI: 10.3389/fonc.2021.624837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 06/08/2021] [Indexed: 12/24/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a growing cause of cancer-related mortality worldwide. Kallikrein-related peptidase 8 (KLK8) has potential clinical values in many cancers. However, the clinicopathological significances of KLK8 in PDAC remain unknown. We explored the relationship of KLK8 to clinicopathological features of PDAC based on public databases. KLK8 expression was examined in human PDAC tissues. Cell proliferation and apoptosis were evaluated in KLK8-overexpressed human pancreatic cancer cell lines Mia-paca-2 and Panc-1. The related signaling pathways of KLK8 involved in pancreatic cancer progression were analyzed by gene set enrichment analysis (GSEA) and further verified in in vitro studies. We found that KLK8 was up-regulated in tumor tissues in the TCGA-PAAD cohort, and was an independent prognostic factor for both overall survival and disease-free survival of PDAC. KLK8 mRNA and protein expressions were increased in PDAC tissues compared with para-cancerous pancreas. KLK8 overexpression exerted pro-proliferation and anti-apoptotic functions in Mia-paca-2 and Panc-1 cells. GSEA analysis showed that KLK8 was positively associated with PI3K-Akt-mTOR and Notch pathways. KLK8-induced pro-proliferation and anti-apoptotic effects in Mia-paca-2 and Panc-1 cells were attenuated by inhibitors for PI3K, Akt, and mTOR, but not by inhibitor for Notch. Furthermore, overexpression of KLK8 in Mia-paca-2 and Panc-1 cells significantly increased epidermal growth factor (EGF) levels in the culture media. EGF receptor (EGFR) inhibitor could block KLK8-induced activation of PI3K/Akt/mTOR pathway and attenuate pro-proliferation and anti-apoptotic of KLK8 in Mia-paca-2 and Panc-1 cells. In conclusion, KLK8 overexpression exerts pro-proliferation and anti-apoptotic functions in pancreatic cancer cells via EGF signaling-dependent activation of PI3K/Akt/mTOR pathway. Upregulated KLK8 in PDAC predicts poor prognosis and may be a potential therapeutic target for PDAC.
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Affiliation(s)
- Qing Hua
- Department of Anesthesiology, Shanghai Cancer Centre, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tianjiao Li
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Pancreatic Surgery, Shanghai Cancer Centre, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Fudan University Shanghai, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Yixuan Liu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Clinical Laboratory, Shanghai Cancer Centre, Fudan University, Shanghai, China
| | - Xuefang Shen
- Department of Anesthesiology, Shanghai Cancer Centre, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaoyan Zhu
- Department of Physiology, Navy Medical University, Shanghai, China
| | - Pingbo Xu
- Department of Anesthesiology, Shanghai Cancer Centre, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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11
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Petrova E, Hovnanian A. Advances in understanding of Netherton syndrome and therapeutic implications. Expert Opin Orphan Drugs 2020. [DOI: 10.1080/21678707.2020.1857724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Evgeniya Petrova
- Laboratory of genetic skin diseases, Université de Paris, Imagine Institute, INSERM UMR1163, Paris, France
| | - Alain Hovnanian
- Laboratory of genetic skin diseases, Université de Paris, Imagine Institute, INSERM UMR1163, Paris, France
- Departement of Genetics, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
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12
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Coptis chinensis Franch Directly Inhibits Proteolytic Activation of Kallikrein 5 and Cathelicidin Associated with Rosacea in Epidermal Keratinocytes. Molecules 2020; 25:molecules25235556. [PMID: 33256158 PMCID: PMC7729574 DOI: 10.3390/molecules25235556] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/17/2020] [Accepted: 11/25/2020] [Indexed: 11/17/2022] Open
Abstract
Rosacea is a common and chronic inflammatory skin disease that is characterized by dysfunction of the immune and vascular system. The excessive production and activation of kallikerin 5 (KLK5) and cathelicidin have been implicated in the pathogenesis of rosacea. Coptis chinensis Franch (CC) has been used as a medicinal herb in traditional oriental medicine. However, little is known about the efficacy and mechanism of action of CC in rosacea. In this study, we evaluate the effect of CC and its molecular mechanism on rosacea in human epidermal keratinocytes. CC has the capacity to downregulate the expression of KLK5 and cathelicidin, and also inhibits KLK5 protease activity, which leads to reduced processing of inactive cathelicidin into active LL-37. It was determined that CC ameliorates the expression of pro-inflammatory cytokines through the inhibition of LL-37 processing. In addition, it was confirmed that chitin, an exoskeleton of Demodex mites, mediates an immune response through TLR2 activation, and CC inhibits TLR2 expression and downstream signal transduction. Furthermore, CC was shown to inhibit the proliferation of human microvascular endothelial cells induced by LL-37, the cause of erythematous rosacea. These results demonstrate that CC improved rosacea by regulating the immune response and angiogenesis, and revealed its mechanism of action, indicating that CC may be a useful therapeutic agent for rosacea.
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13
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Gong W, Liu Y, Diamandis EP, Kiechle M, Bronger H, Dorn J, Dreyer T, Magdolen V. Prognostic value of kallikrein-related peptidase 7 (KLK7) mRNA expression in advanced high-grade serous ovarian cancer. J Ovarian Res 2020; 13:125. [PMID: 33087135 PMCID: PMC7579813 DOI: 10.1186/s13048-020-00725-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/02/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND High-grade serous ovarian cancer (HGSOC) is the most common and lethal subtype of ovarian cancer. A growing body of evidence suggests tumor-supporting roles of several members of the kallikrein-related peptidase (KLK) family, including KLK5 and KLK7, in this cancer subtype. In normal physiology, KLK5 and KLK7 are the major proteases involved in skin desquamation. Moreover, in several cancer types KLK5 and KLK7 co-expression has been observed. Recently, we have shown that elevated KLK5 mRNA levels are associated with an unfavorable prognosis in HGSOC. Therefore, the aim of this study was to investigate the clinical significance of KLK7 mRNA expression and to explore its relation to KLK5 levels in HGSOC. METHODS mRNA expression levels of KLK7 were quantified by qPCR in a well-characterized patient cohort afflicted with advanced high-grade serous ovarian cancer (FIGO III/IV, n = 139). Previously determined KLK5 mRNA as well as KLK5 and KLK7 antigen concentrations were used to evaluate the relationship between the expression patterns of both factors on the mRNA as well as protein level in tumor tissue of HGSOC patients. RESULTS There were strong, significant positive correlations between KLK5 and KLK7 both at the mRNA and the protein level, suggesting coordinate expression of these proteases in HGSOC. In univariate analyses, elevated KLK7 levels as well as the combination of KLK5 + KLK7 (high and/or high versus low/low) were significantly associated with worse progression-free survival (PFS). High mRNA expression levels of KLK7 and the combination of KLK5 and KLK7 showed a trend towards significance for overall survival (OS). In multivariate analyses, KLK7 mRNA expression represented an unfavorable, statistically significant independent predictor for PFS and OS. CONCLUSIONS The findings imply that both increased KLK5 and KLK7 mRNA expression levels represent unfavorable prognostic biomarkers in advanced high-grade serous ovarian cancer, whereby multivariate analyses indicate that KLK7 mRNA exhibits a stronger predictive value as compared to KLK5 mRNA and the combination of KLK5 and KLK7.
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Affiliation(s)
- Weiwei Gong
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Department of Hematology-Oncology, Guangzhou Women and Children's Medical Center, Guangzhou, People's Republic of China
| | - Yueyang Liu
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Department of Gynecology, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, People's Republic of China
| | - Eleftherios P Diamandis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Marion Kiechle
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Holger Bronger
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Julia Dorn
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Tobias Dreyer
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Viktor Magdolen
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany.
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14
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Di Paolo CT, Diamandis EP, Prassas I. The role of kallikreins in inflammatory skin disorders and their potential as therapeutic targets. Crit Rev Clin Lab Sci 2020; 58:1-16. [PMID: 32568598 DOI: 10.1080/10408363.2020.1775171] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The skin is a vital organ of the human body, serving numerous protective and functional roles that are essential for survival. Residing in the epidermis are various epidermal proteases responsible for the establishment and regulation of barrier function. The human tissue kallikrein-related peptidase family conserves homeostasis of the skin barrier through their roles in desquamation, antimicrobial defense, innate immune response, and barrier maintenance. The activity of kallikreins is tightly regulated and dysregulation of kallikrein activity is seen to contribute to the formation of several inflammatory skin disorders. This review highlights the roles of kallikreins in skin homeostasis and pathologies. Due to their part in these skin disorders, inhibitors of the skin kallikreins have become attractive therapeutics. Over the past few years, both natural and synthetic inhibitors of several kallikreins have been identified and are undergoing further development as treatments to restore compromised barrier function. This review summarizes the kallikrein inhibitors under development for this purpose. These inhibitors remain promising therapeutics in cases of severe skin inflammation not well managed by current therapies.
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Affiliation(s)
- Caitlin T Di Paolo
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Canada
| | - Eleftherios P Diamandis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Canada.,Department of Clinical Biochemistry, University Health Network, Toronto, Canada
| | - Ioannis Prassas
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Canada
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15
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Redhu D, Franke K, Kumari V, Francuzik W, Babina M, Worm M. Thymic stromal lymphopoietin production induced by skin irritation results from concomitant activation of protease-activated receptor 2 and interleukin 1 pathways. Br J Dermatol 2019; 182:119-129. [PMID: 30924922 DOI: 10.1111/bjd.17940] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Thymic stromal lymphopoietin (TSLP) mediates proallergic T helper 2-type responses by acting on leucocytes. Endogenous pathways regulating TSLP production are poorly defined. OBJECTIVES To uncover the mechanisms by which skin barrier disruption elicits TSLP production and to delineate the level at which individual mechanistic components may converge. METHODS A combination of primary keratinocytes, skin explants and in vivo strategies was employed. Murine skin was tape stripped in the presence of neutralizing antibodies or antagonists. Cells and explants were stimulated with interleukin (IL)-1 and protease-activated receptor 2 agonist (PAR-2-Ag). TSLP levels were quantified by enzyme-linked immunosorbent assay and real-time quantitative polymerase chain reaction. Chromatin immunoprecipitation and promoter reporter assays were used to examine recruitment and functional activity of nuclear factor kappa B (NF-κB) at the TSLP promoter. RESULTS TSLP induction in mouse skin occurred in a PAR-2- and IL-1-dependent manner. This scenario was duplicated by exogenous IL-1 plus PAR-2-Ag vs. each stimulus alone. Joint activity of PAR-2 and IL-1 was also observed in human keratinocytes. The TSLP promoter was identified as the target of PAR-2/IL-1, whereby PAR-2 activation augmented the recruitment of NF-κB and transcriptional activation over IL-1 alone. Combined treatment showed activity at concentrations of IL-1 unable to elicit NF-κB activity on their own. CONCLUSIONS Skin barrier disruption activates the IL-1 and the PAR-2 pathways, which act in concert to activate the TSLP promoter and possibly other inflammatory genes. Awareness of this combined activity may permit a more flexible clinical management by selective targeting of either pathway individually or collectively. What's already known about this topic? Thymic stromal lymphopoietin (TSLP) is rapidly induced upon skin perturbation and mediates proallergic T helper 2-type responses by acting on leucocytes. Endogenous control of TSLP expression is poorly understood, but interleukin (IL)-1 is one regulator in the cutaneous environment In addition to IL-1, protease-activated receptor 2 (PAR-2) organizes central inflammatory pathways in the skin. What does this study add? IL-1 and PAR-2 pathways cooperate in driving TSLP production in mice and humans. Pathway integration occurs at the level of the TSLP promoter through enhanced recruitment and transcriptional activation of nuclear factor kappa B. When PAR-2 is co-stimulated, very low IL-1 levels (inactive by themselves) can induce biologically meaningful responses in the skin environment. What is the translational message? Physical skin irritation results in robust TSLP production by simultaneous activation of PAR-2 and IL-1 pathways.
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Affiliation(s)
- D Redhu
- Department of Dermatology and Allergy, Allergy Center Charité, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - K Franke
- Department of Dermatology and Allergy, Allergy Center Charité, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - V Kumari
- Department of Dermatology and Allergy, Allergy Center Charité, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - W Francuzik
- Department of Dermatology and Allergy, Allergy Center Charité, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - M Babina
- Department of Dermatology and Allergy, Allergy Center Charité, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - M Worm
- Department of Dermatology and Allergy, Allergy Center Charité, Charité Universitätsmedizin Berlin, Berlin, Germany
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16
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Gong W, Liu Y, Seidl C, Diamandis EP, Kiechle M, Drecoll E, Kotzsch M, Magdolen V, Dorn J. Quantitative assessment and clinical relevance of kallikrein-related peptidase 5 mRNA expression in advanced high-grade serous ovarian cancer. BMC Cancer 2019; 19:696. [PMID: 31307411 PMCID: PMC6631576 DOI: 10.1186/s12885-019-5901-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 07/02/2019] [Indexed: 11/10/2022] Open
Abstract
Background In ovarian cancer, dysregulation of mRNA expression of several components of the family of the kallikrein-related peptidases (KLKs) is observed. In this study, we have analyzed the KLK5 mRNA expression pattern in tumor tissue of patients suffering from high-grade serous ovarian cancer stage FIGO III/IV. Moreover, we have correlated the KLK5 mRNA levels with clinical outcome. Methods We assessed the mRNA expression levels of KLK5 in tumor tissue of 138 patients using quantitative PCR (qPCR). The mRNA levels were correlated with KLK5 antigen tumor tissue levels measured by ELISA (available for 41 of the 138 patients), established clinical features as well as patients’ outcome, using Chi-square-tests, Mann-Whitney U-tests and Spearman rank calculations as well as Cox regression models, Kaplan-Meier survival analysis and the log-rank test. Results A highly significant correlation between the mRNA expression levels and protein levels of KLK5 in tumor tissues was observed (rs = 0.683, p < 0.001). In univariate Cox regression analysis, elevated KLK5 mRNA expression was remarkably associated with reduced progression-free survival (PFS; p = 0.047), but not with overall survival (OS). Association of KLK5 mRNA expression with PFS was validated in silico using The Cancer Genome Atlas. For this, Affymetrix-based mRNA data (n = 377) were analyzed applying the Kaplan-Meier Plotter tool (p = 0.027). In multivariable Cox analysis, KLK5 mRNA values revealed a trend towards statistical significance for PFS (p = 0.095), whereas residual tumor mass (0 mm vs. > 0 mm), but not ascites fluid volume (≤500 ml vs. > 500 ml), remained an independent indicator for both OS and PFS (p < 0.001, p = 0.005, respectively). Conclusions These results obtained with a homogenous patient group with all patients suffering from advanced high-grade serous ovarian cancer support previous results suggesting elevated KLK5 mRNA levels as an unfavorable marker in ovarian cancer.
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Affiliation(s)
- Weiwei Gong
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany
| | - Yueyang Liu
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany
| | - Christof Seidl
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany
| | - Eleftherios P Diamandis
- Division of Clinical Biochemistry, Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Marion Kiechle
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany
| | - Enken Drecoll
- Department of Institute of Pathology, Technical University of Munich, Munich, Germany
| | | | - Viktor Magdolen
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany.
| | - Julia Dorn
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany
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17
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Pampalakis G, Zingkou E, Sotiropoulou G. KLK5, a novel potential suppressor of vaginal carcinogenesis. Biol Chem 2018; 399:1107-1111. [PMID: 29561728 DOI: 10.1515/hsz-2017-0302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/11/2018] [Indexed: 01/15/2023]
Abstract
Vaginal cancer is rare and largely unexplored. We found here that kallikrein-related peptidase 5 (KLK5) is coordinately expressed along with other KLKs in all stratified epithelia, including vagina, pointing to potential role(s) in differentiation. Further, we propose that KLK5 could be implicated in vaginal cancer development based on the fact that Klk5-/- mice are prone to develop vaginal tumors when exposed to 7,12-dimethylbenz[a]anthracene. Nf-κb activation is markedly enhanced in Klk5-/-, leading to increased resistance to apoptosis of mutated vaginal cells. This explains the higher tumor numbers observed in Klk5-/- compared to wildtype. Thus, KLK5 may represent a putative suppressor of vaginal cancer.
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Affiliation(s)
- Georgios Pampalakis
- Department of Pharmacy, School of Health Sciences, University of Patras, GR-265 04 Rion-Patras, Greece
| | - Eleni Zingkou
- Department of Pharmacy, School of Health Sciences, University of Patras, GR-265 04 Rion-Patras, Greece
| | - Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, GR-265 04 Rion-Patras, Greece
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Darling MR, Tsai S, Jackson-Boeters L, Daley TD, Diamandis EP. Human Kallikrein 3 (prostate-specific antigen) and Human Kallikrein 5 Expression in Salivary Gland Tumors. Int J Biol Markers 2018; 21:201-5. [PMID: 17177156 DOI: 10.1177/172460080602100401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The human kallikrein 5 protein (hK5) is expressed in many normal tissues, most notably in skin, breast, salivary gland and esophagus. It has also been shown to be a potential biomarker for breast, ovarian and testicular cancer. Human kallikrein 3 (hK3; prostate-specific antigen) is the most useful marker for adenocarcinoma of the prostate gland. The aim of this study was to determine whether hK3 and hK5 are expressed in salivary gland tissues and salivary gland tumors (both benign and malignant), in order to compare normal with tumor tissues. Pleomorphic adenomas, adenoid cystic carcinomas, polymorphous low-grade adenocarcinomas, acinic cell carcinomas, mucoepidermoid carcinomas and adenocarcinomas not otherwise specified of both minor and major salivary glands were examined. The results of this study indicate that most salivary gland tumors do not show high levels of expression of hK5. Staining was most prominent in keratinizing epithelia in pleomorphic adenomas. hK3 is not expressed in salivary gland tumors.
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Affiliation(s)
- M R Darling
- Division of Oral Pathology, Department of Pathology, University of Western Ontario, London, Ontario N6A 5C1, Canada.
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Jang H, Myung H, Lee J, Myung JK, Jang WS, Lee SJ, Bae CH, Kim H, Park S, Shim S. Impaired Skin Barrier Due to Sebaceous Gland Atrophy in the Latent Stage of Radiation-Induced Skin Injury: Application of Non-Invasive Diagnostic Methods. Int J Mol Sci 2018; 19:ijms19010185. [PMID: 29316698 PMCID: PMC5796134 DOI: 10.3390/ijms19010185] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/01/2018] [Accepted: 01/03/2018] [Indexed: 12/18/2022] Open
Abstract
Radiation-induced skin injury can take the form of serious cutaneous damage and have specific characteristics. Asymptomatic periods are classified as the latent stage. The skin barrier plays a critical role in the modulation of skin permeability and hydration and protects the body against a harsh external environment. However, an analysis on skin barrier dysfunction against radiation exposure in the latent stage has not been conducted. Thus, we investigated whether the skin barrier is impaired by irradiation in the latent stage and aimed to identify the molecules involved in skin barrier dysfunction. We analyzed skin barrier function and its components in SKH1 mice that received 20 and 40 Gy local irradiation. Increased transepidermal water loss and skin pH were observed in the latent stage of the irradiated skin. Skin barrier components, such as structural proteins and lipid synthesis enzymes in keratinocyte, increased in the irradiated group. Interestingly, we noted sebaceous gland atrophy and increased serine protease and inflammatory cytokines in the irradiated skin during the latent period. This finding indicates that the main factor of skin barrier dysfunction in the latent stage of radiation-induced skin injury is sebaceous gland deficiency, which could be an intervention target for skin barrier impairment.
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Affiliation(s)
- Hyosun Jang
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Hyunwook Myung
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Janet Lee
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Jae Kyung Myung
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
- Department of Pathology, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Won-Suk Jang
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Sun-Joo Lee
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Chang-Hwan Bae
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Hyewon Kim
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Sunhoo Park
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
- Department of Pathology, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
| | - Sehwan Shim
- Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Korea.
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20
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Longo CM, Adam AP, Wladis EJ. Rosacea and the eye: a recent review. EXPERT REVIEW OF OPHTHALMOLOGY 2018. [DOI: 10.1080/17469899.2018.1429268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Christine M. Longo
- Department of Regenerative and Cancer Cell Biology, MC-165, Albany Medical College, Albany, NY, USA
| | - Alejandro P. Adam
- Department of Molecular and Cellular Physiology, MC-8, Albany Medical College, Lions Eye Institute, Albany, NY, USA
- Department of Ophthalmology, Albany Medical College, Albany, NY, USA
| | - Edward J. Wladis
- Ophthalmic Plastic Surgery, Department of Ophthalmology, Lions Eye Institute, Albany Medical College, Albany, NY, USA
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21
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Yu Y, Prassas I, Muytjens CM, Diamandis EP. Proteomic and peptidomic analysis of human sweat with emphasis on proteolysis. J Proteomics 2017; 155:40-48. [DOI: 10.1016/j.jprot.2017.01.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/03/2017] [Accepted: 01/05/2017] [Indexed: 02/07/2023]
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22
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Limón D, Jiménez-Newman C, Calpena AC, González-Campo A, Amabilino DB, Pérez-García L. Microscale coiling in bis-imidazolium supramolecular hydrogel fibres induced by the release of a cationic serine protease inhibitor. Chem Commun (Camb) 2017; 53:4509-4512. [DOI: 10.1039/c6cc09392b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A gemini dicationic amphiphile forms gels with a serine protease inhibitor, which could be used in a new approach to the treatment of Rosacea, and the release of the drug causes remarkable gel fibre coiling.
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Affiliation(s)
- David Limón
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Claire Jiménez-Newman
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ana C. Calpena
- Institut de Nanociència i Nanotecnologia IN2UB
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Departament de Farmàcia
| | | | - David B. Amabilino
- School of Chemistry
- University of Nottingham
- UK
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry
- The University of Nottingham
| | - Lluïsa Pérez-García
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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de Veer SJ, Swedberg JE, Brattsand M, Clements JA, Harris JM. Exploring the active site binding specificity of kallikrein-related peptidase 5 (KLK5) guides the design of new peptide substrates and inhibitors. Biol Chem 2016; 397:1237-1249. [DOI: 10.1515/hsz-2016-0112] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 02/16/2016] [Indexed: 12/24/2022]
Abstract
Abstract
Kallikrein-related peptidase 5 (KLK5) is a promising therapeutic target in several skin diseases, including Netherton syndrome, and is emerging as a potential target in various cancers. In this study, we used a sparse matrix library of 125 individually synthesized peptide substrates to characterize the binding specificity of KLK5. The sequences most favored by KLK5 were GRSR, YRSR and GRNR, and we identified sequence-specific interactions involving the peptide N-terminus by analyzing kinetic constants (kcat and KM) and performing molecular dynamics simulations. KLK5 inhibitors were subsequently engineered by substituting substrate sequences into the binding loop (P1, P2 and P4 residues) of sunflower trypsin inhibitor-1 (SFTI-1). These inhibitors were effective against KLK5 but showed limited selectivity, and performing a further substitution at P2′ led to the design of a new variant that displayed improved activity against KLK5 (Ki=4.2±0.2 nm), weak activity against KLK7 and 12-fold selectivity over KLK14. Collectively, these findings provide new insight into the design of highly favored binding sequences for KLK5 and reveal several opportunities for modulating inhibitor selectivity over closely related proteases that will be useful for future studies aiming to develop therapeutic molecules targeting KLK5.
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24
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de Veer SJ, Furio L, Swedberg JE, Munro CA, Brattsand M, Clements JA, Hovnanian A, Harris JM. Selective Substrates and Inhibitors for Kallikrein-Related Peptidase 7 (KLK7) Shed Light on KLK Proteolytic Activity in the Stratum Corneum. J Invest Dermatol 2016; 137:430-439. [PMID: 27697464 DOI: 10.1016/j.jid.2016.09.017] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 09/05/2016] [Accepted: 09/16/2016] [Indexed: 01/01/2023]
Abstract
Proteases have pivotal roles in the skin's outermost layer, the epidermis. In the stratum corneum, serine proteases from the kallikrein-related peptidase (KLK) family have been implicated in several key homeostatic processes, including desquamation. However, the precise contribution of specific KLKs to each process remains unclear. To address this, we used a chemical biology approach and designed selective substrates and inhibitors for KLK7, the most abundant KLK protease in the stratum corneum. The resulting KLK7 inhibitor is the most potent inhibitor of this protease reported to date (Ki = 140 pM), and displays at least 1,000-fold selectivity over several proteases that are related by function (KLK5 and KLK14) or specificity (chymotrypsin). We then used substrates and inhibitors for KLK5, KLK7, and KLK14 to explore the activity of each protease in the stratum corneum using casein zymography and an ex vivo desquamation assay. These experiments provide the most detailed assessment of each KLK's contribution to corneocyte shedding in the plantar stratum corneum, revealing that inhibition of KLK7 alone is sufficient to block shedding, whereas KLK5 is also a major contributor. Collectively, these findings unveil chemical tools for studying KLK activity and demonstrate their potential for characterizing KLK biological functions in epidermal homeostasis.
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Affiliation(s)
- Simon J de Veer
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia; Laboratory of Genetic Skin Diseases, INSERM UMR 1163 and Imagine Institute of Genetic Diseases, Paris, France; Université Paris V Descartes-Sorbonne Paris Cité, Paris, France
| | - Laetitia Furio
- Laboratory of Genetic Skin Diseases, INSERM UMR 1163 and Imagine Institute of Genetic Diseases, Paris, France; Université Paris V Descartes-Sorbonne Paris Cité, Paris, France
| | - Joakim E Swedberg
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Christopher A Munro
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Maria Brattsand
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Judith A Clements
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia; Australian Prostate Cancer Research Centre, Translational Research Institute, Brisbane, Queensland, Australia
| | - Alain Hovnanian
- Laboratory of Genetic Skin Diseases, INSERM UMR 1163 and Imagine Institute of Genetic Diseases, Paris, France; Université Paris V Descartes-Sorbonne Paris Cité, Paris, France; Department of Genetics, Necker Hospital for Sick Children, Paris, France
| | - Jonathan M Harris
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
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Wu Y, Chen Y, Li Q, Gong Y, Liu X, Bi L, Hu C. Upregulation of kallikrein-related peptidase 5 is associated with the malignant behavior of colorectal cancer. Mol Med Rep 2016; 14:2164-70. [DOI: 10.3892/mmr.2016.5516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 02/22/2016] [Indexed: 11/06/2022] Open
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KLK5 Inactivation Reverses Cutaneous Hallmarks of Netherton Syndrome. PLoS Genet 2015; 11:e1005389. [PMID: 26390218 PMCID: PMC4577096 DOI: 10.1371/journal.pgen.1005389] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 06/23/2015] [Indexed: 02/06/2023] Open
Abstract
Netherton Syndrome (NS) is a rare and severe autosomal recessive skin disease which can be life-threatening in infants. The disease is characterized by extensive skin desquamation, inflammation, allergic manifestations and hair shaft defects. NS is caused by loss-of-function mutations in SPINK5 encoding the LEKTI serine protease inhibitor. LEKTI deficiency results in unopposed activities of kallikrein-related peptidases (KLKs) and aberrantly increased proteolysis in the epidermis. Spink5⁻/⁻ mice recapitulate the NS phenotype, display enhanced epidermal Klk5 and Klk7 protease activities and die within a few hours after birth because of a severe skin barrier defect. However the contribution of these various proteases in the physiopathology remains to be determined. In this study, we developed a new murine model in which Klk5 and Spink5 were both knocked out to assess whether Klk5 deletion is sufficient to reverse the NS phenotype in Spink5⁻/⁻ mice. By repeated intercrossing between Klk5⁻/⁻ mice with Spink5⁻/⁻ mice, we generated Spink5⁻/⁻Klk5⁻/⁻ animals. We showed that Klk5 knock-out in Lekti-deficient newborn mice rescues neonatal lethality, reverses the severe skin barrier defect, restores epidermal structure and prevents skin inflammation. Specifically, using in situ zymography and specific protease substrates, we showed that Klk5 knockout reduced epidermal proteolytic activity, particularly its downstream targets proteases KLK7, KLK14 and ELA2. By immunostaining, western blot, histology and electron microscopy analyses, we provide evidence that desmosomes and corneodesmosomes remain intact and that epidermal differentiation is restored in Spink5⁻/⁻Klk5⁻/⁻. Quantitative RT-PCR analyses and immunostainings revealed absence of inflammation and allergy in Spink5⁻/⁻Klk5⁻/⁻ skin. Notably, Il-1β, Il17A and Tslp levels were normalized. Our results provide in vivo evidence that KLK5 knockout is sufficient to reverse NS-like symptoms manifested in Spink5⁻/⁻ skin. These findings illustrate the crucial role of protease regulation in skin homeostasis and inflammation, and establish KLK5 inhibition as a major therapeutic target for NS.
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Wang Z, Yuan W, Montana G. Sparse multi-view matrix factorization: a multivariate approach to multiple tissue comparisons. Bioinformatics 2015; 31:3163-71. [DOI: 10.1093/bioinformatics/btv344] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/29/2015] [Indexed: 12/25/2022] Open
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28
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Kitajima Y. Implications of normal and disordered remodeling dynamics of corneodesmosomes in stratum corneum. DERMATOL SIN 2015. [DOI: 10.1016/j.dsi.2015.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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29
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Lowry N, McLister A, McCreadie K, Davis J. An electronic approach to minimising moisture-associated skin damage in ostomy patients. Med Hypotheses 2015; 85:192-6. [PMID: 25981876 DOI: 10.1016/j.mehy.2015.04.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 04/25/2015] [Indexed: 12/01/2022]
Abstract
Marked developments in the design of ostomy appliances in recent years have revolutionised stoma care and management but the prevalence of peristomal skin complications continues to be problematic with incidence rates ranging from 10% to 70%. Despite requisite pre and post-operative education for new patients, complications continue to arise - even under the close supervision of specialist nurses. Prolonged exposure of the skin to high pH stoma effluent is widely accepted as a key contributor to the onset of moisture-associated skin disease and it is our hypothesis that a "smart wafer", employing electrochemical manipulation of local pH, could mitigate some of the issues currently plaguing ostomy management. Current electrochemical research strategies translatable to stoma care are presented and their possible implementations critically appraised.
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Affiliation(s)
- Naomi Lowry
- School of Engineering, University of Ulster, Jordanstown, Northern Ireland BT37 0QB, UK
| | - Anna McLister
- School of Engineering, University of Ulster, Jordanstown, Northern Ireland BT37 0QB, UK
| | - Karl McCreadie
- School of Engineering, University of Ulster, Jordanstown, Northern Ireland BT37 0QB, UK
| | - James Davis
- School of Engineering, University of Ulster, Jordanstown, Northern Ireland BT37 0QB, UK.
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The Importance of Acidification in Atopic Eczema: An Underexplored Avenue for Treatment. J Clin Med 2015; 4:970-8. [PMID: 26239459 PMCID: PMC4470210 DOI: 10.3390/jcm4050970] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 04/28/2015] [Accepted: 05/07/2015] [Indexed: 11/29/2022] Open
Abstract
Atopic dermatitis is a form of dermatitis commonly seen in children and adults. Its pathophysiology is complex and is centered on the barrier function of the epidermis. An important aspect of the skin’s barrier is pH, which in turn affects a number of parameters such as the skin flora, protease function, and mediators of inflammation and pruritus. Normal pH for non-neonatal skin is acidic and ranges from 4 to 6. Skin pH in atopic dermatitis patients is often increased into the neutral to basic range, and the resulting cascade of changes contributes to the phenotype of atopic dermatitis. Therefore, the maintenance of normal skin pH remains an important topic in understanding and treating atopic dermatitis. This article will review skin pH and its impact on normal barrier function, pathological pH changes in atopic dermatitis, and the therapeutic considerations related to restoring and maintaining pH balance.
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Prassas I, Eissa A, Poda G, Diamandis EP. Unleashing the therapeutic potential of human kallikrein-related serine proteases. Nat Rev Drug Discov 2015; 14:183-202. [DOI: 10.1038/nrd4534] [Citation(s) in RCA: 166] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Cao YA, Hickerson RP, Seegmiller BL, Grapov D, Gross MM, Bessette MR, Phinney BS, Flores MA, Speaker TJ, Vermeulen A, Bravo AA, Bruckner AL, Milstone LM, Schwartz ME, Rice RH, Kaspar RL. Gene expression profiling in pachyonychia congenita skin. J Dermatol Sci 2015; 77:156-65. [PMID: 25656049 DOI: 10.1016/j.jdermsci.2015.01.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 01/05/2015] [Accepted: 01/07/2015] [Indexed: 01/26/2023]
Abstract
BACKGROUND Pachyonychia congenita (PC) is a skin disorder resulting from mutations in keratin (K) proteins including K6a, K6b, K16, and K17. One of the major symptoms is painful plantar keratoderma. The pathogenic sequelae resulting from the keratin mutations remain unclear. OBJECTIVE To better understand PC pathogenesis. METHODS RNA profiling was performed on biopsies taken from PC-involved and uninvolved plantar skin of seven genotyped PC patients (two K6a, one K6b, three K16, and one K17) as well as from control volunteers. Protein profiling was generated from tape-stripping samples. RESULTS A comparison of PC-involved skin biopsies to adjacent uninvolved plantar skin identified 112 differentially-expressed mRNAs common to patient groups harboring K6 (i.e., both K6a and K6b) and K16 mutations. Among these mRNAs, 25 encode structural proteins including keratins, small proline-rich and late cornified envelope proteins, 20 are related to metabolism and 16 encode proteases, peptidases, and their inhibitors including kallikrein-related peptidases (KLKs), and serine protease inhibitors (SERPINs). mRNAs were also identified to be differentially expressed only in K6 (81) or K16 (141) patient samples. Furthermore, 13 mRNAs were identified that may be involved in pain including nociception and neuropathy. Protein profiling, comparing three K6a plantar tape-stripping samples to non-PC controls, showed changes in the PC corneocytes similar, but not identical, to the mRNA analysis. CONCLUSION Many differentially-expressed genes identified in PC-involved skin encode components critical for skin barrier homeostasis including keratinocyte proliferation, differentiation, cornification, and desquamation. The profiling data provide a foundation for unraveling the pathogenesis of PC and identifying targets for developing effective PC therapeutics.
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Affiliation(s)
- Yu-An Cao
- TransDerm Inc., Santa Cruz, CA 95060, USA
| | | | | | - Dmitry Grapov
- University of California at Davis, Davis, CA 95616, USA
| | - Maren M Gross
- Dharmacon part of GE Healthcare, Lafayette, CO 80026, USA
| | | | | | | | | | | | - Albert A Bravo
- Podiatric Medicine and Surgery, Pittsfield, MA 01201, USA
| | - Anna L Bruckner
- University of Colorado School of Medicine, Aurora, CO 80045, USA
| | | | - Mary E Schwartz
- Pachyonychia Congenita Project, Salt Lake City, UT 84109, USA
| | - Robert H Rice
- University of California at Davis, Davis, CA 95616, USA
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Yoon H, Blaber SI, Li W, Scarisbrick IA, Blaber M. Activation profiles of human kallikrein-related peptidases by matrix metalloproteinases. Biol Chem 2014; 394:137-47. [PMID: 23241590 DOI: 10.1515/hsz-2012-0249] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 09/20/2012] [Indexed: 11/15/2022]
Abstract
The 15 human kallikrein-related peptidases (KLKs) are clinically important biomarkers and therapeutic targets of interest in inflammation, cancer, and neurodegenerative disease. KLKs are secreted as inactive pro-forms (pro-KLKs) that are activated extracellularly by specific proteolytic release of their amino-terminal pro-peptide, and this is a key step in their functional regulation. Physiologically relevant KLK regulatory cascades of activation have been described in skin desquamation and semen liquefaction, and work by a large number of investigators has elucidated pairwise and autolytic activation relationships among the KLKs with the potential for more extensive activation cascades. More recent work has asked whether functional intersection of KLKs with other types of regulatory proteases exists. Such studies show a capacity for members of the thrombostasis axis to act as broad activators of pro-KLKs. In the present report, we ask whether such functional intersection is possible between the KLKs and the members of the matrix metalloproteinase (MMP) family by evaluating the ability of the MMPs to activate pro-KLKs. The results identify MMP-20 as a broad activator of pro-KLKs, suggesting the potential for intersection of the KLK and MMP axes under pathological dysregulation of MMP-20 expression.
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Affiliation(s)
- Hyesook Yoon
- Department of Biomedical Sciences, Florida State University, Tallahassee, FL 32306-4300, USA
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Dolgikh VV, Senderskii IV, Konarev AV. Production and properties of recombinant glutenin-hydrolyzing proteinases from Eurygaster integriceps Put. APPL BIOCHEM MICRO+ 2014. [DOI: 10.1134/s0003683814040048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Local burn injury impairs epithelial permeability and antimicrobial peptide barrier function in distal unburned skin. Crit Care Med 2014; 42:e420-31. [PMID: 24717471 DOI: 10.1097/ccm.0000000000000309] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Our objective was to characterize the mechanisms by which local burn injury compromises epithelial barrier function in burn margin, containing the elements necessary for healing of the burn site, and in distal unburned skin, which serves as potential donor tissue. DESIGN Experimental mouse scald burn injury. SETTING University Research Laboratory. SUBJECTS C57/Bl6 Male mice, 8-12 weeks old. INTERVENTIONS To confirm that dehydration was not contributing to our observed barrier defects, in some experiments mice received 1 mL of saline fluid immediately after burn, while a subgroup received an additional 0.5 mL at 4 hours and 1 mL at 24 hours following burn. We then assessed skin pH and transepidermal water loss every 12 hours on the burn wounds for 72 hours postburn. MEASUREMENTS AND MAIN RESULTS Burn margin exhibited increased epidermal barrier permeability indicated by higher pH, greater transepidermal water loss, and reduced lipid synthesis enzyme expression and structural protein production up to 96 hours postburn. By contrast, antimicrobial peptide production and protease activity were elevated in burn margin. Skin extracts from burn margin did not exhibit changes in the ability to inhibit bacterial growth. However, distal unburned skin from burned mice also demonstrated an impaired response to barrier disruption, indicated by elevated transepidermal water loss and reduced lipid synthesis enzyme and structural protein expression up to 96 hours postburn. Furthermore, skin extracts from distal unburned skin exhibited greater protease activity and a reduced capacity to inhibit bacterial growth of several skin pathogens. Finally, we established that antimicrobial peptide levels were also altered in the lung and bladder, which are common sites of secondary infection in burn-injured patients. CONCLUSIONS These findings reveal several undefined deficiencies in epithelial barrier function at the burn margin, potential donor skin sites, and organs susceptible to secondary infection. These functional and biochemical data provide novel insights into the mechanisms for graft failure and secondary infection after burn injury.
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Scorilas A, Mavridis K. Predictions for the future of kallikrein-related peptidases in molecular diagnostics. Expert Rev Mol Diagn 2014; 14:713-22. [PMID: 24927162 DOI: 10.1586/14737159.2014.928207] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Kallikrein-related peptidases (KLKs) form a cancer-related ensemble of serine proteases. This multigene family hosts the most widely used cancer biomarker that is PSA-KLK3, with millions of tests performed annually worldwide. The present report provides an overview of the biomarker potential of the extended KLK family (KLK1-KLK15) in various disease settings and envisages approaches that could lead to additional KLK-driven applications in future molecular diagnostics. Particular focus is given on the inclusion of KLKs into multifaceted cancer biomarker panels that provide enhanced diagnostic, prognostic and/or predictive accuracy in several human malignancies. Such panels have been described so far for prostate, ovarian, lung and colorectal cancers. The role of KLKs as biomarkers in non-malignant disease settings, such as Alzheimer's disease and multiple sclerosis, is also commented upon. Predictions are given on the challenges and future directions regarding clinically oriented KLK research.
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Affiliation(s)
- Andreas Scorilas
- Department of Biochemistry and Molecular Biology, University of Athens, Panepistimiopolis, Athens 157 01, Greece
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37
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Pampalakis G, Obasuyi O, Papadodima O, Chatziioannou A, Zoumpourlis V, Sotiropoulou G. The KLK5 protease suppresses breast cancer by repressing the mevalonate pathway. Oncotarget 2014; 5:2390-403. [PMID: 24158494 PMCID: PMC4058013 DOI: 10.18632/oncotarget.1235] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 09/01/2013] [Indexed: 12/21/2022] Open
Abstract
Kallikrein-related peptidase 5 (KLK5) displays aberrant expression in cancer. However, any functional association is missing. Here, we show that reconstitution of KLK5 expression in non-expressing MDA-MB-231 breast cancer cells suppresses malignancy in vitro and in vivo dose-dependently. Reactivation of KLK5 suppressed key EMT genes. Unexpectedly, we identified altered expression of genes encoding enzymes of the mevalonate pathway typical of those observed upon cholesterol starvation. Consistently, we found that SREBF1, the master regulator of the mevalonate pathway was induced. KLK5 re-expression leads to reduced cellular cholesterol and fatty acid synthesis and enhanced uptake of LDL-cholesterol. Suppression of the mevalonate pathway in KLK5 transfectants was further shown by reduced synthesis of isoprenoids. Indeed, we found diminished levels of active RhoA, a signaling oncoprotein that requires prenylation for activation. We propose that reduced RhoA activation plays a dominant role in suppression of malignancy by KLK5, since geranylgeranyl pyrophosphate restored active RhoA in KLK5-reverted cells resulting in increased malignancy. For the first time, we suggest that a protease may suppress breast cancer by modulating the mevalonate pathway.
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Affiliation(s)
| | - Osahon Obasuyi
- Department of Pharmacy, University of Patras, Rion-Patras 26500
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Furio L, de Veer S, Jaillet M, Briot A, Robin A, Deraison C, Hovnanian A. Transgenic kallikrein 5 mice reproduce major cutaneous and systemic hallmarks of Netherton syndrome. ACTA ACUST UNITED AC 2014; 211:499-513. [PMID: 24534191 PMCID: PMC3949577 DOI: 10.1084/jem.20131797] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Netherton syndrome (NS) is a severe genetic skin disease in which absence of a key protease inhibitor causes congenital exfoliative erythroderma, eczematous-like lesions, and atopic manifestations. Several proteases are overactive in NS, including kallikrein-related peptidase (KLK) 5, KLK7, and elastase-2 (ELA2), which are suggested to be part of a proteolytic cascade initiated by KLK5. To address the role of KLK5 in NS, we have generated a new transgenic murine model expressing human KLK5 in the granular layer of the epidermis (Tg-KLK5). Transgene expression resulted in increased proteolytic activity attributable to KLK5 and its downstream targets KLK7, KLK14, and ELA2. Tg-KLK5 mice developed an exfoliative erythroderma with scaling, growth delay, and hair abnormalities. The skin barrier was defective and the stratum corneum was detached through desmosomal cleavage. Importantly, Tg-KLK5 mice displayed cutaneous and systemic hallmarks of severe inflammation and allergy with pruritus. The skin showed enhanced expression of inflammatory cytokines and chemokines, infiltration of immune cells, and markers of Th2/Th17/Th22 T cell responses. Moreover, serum IgE and Tslp levels were elevated. Our study identifies KLK5 as an important contributor to the NS proteolytic cascade and provides a new and viable model for the evaluation of future targeted therapies for NS or related diseases such as atopic dermatitis.
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Affiliation(s)
- Laetitia Furio
- Université Paris Descartes-Sorbonne Paris Cité, 75006 Paris, France
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Mohammed D, Hirata K, Hadgraft J, Lane ME. Influence of skin penetration enhancers on skin barrier function and skin protease activity. Eur J Pharm Sci 2014; 51:118-22. [DOI: 10.1016/j.ejps.2013.09.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 09/08/2013] [Accepted: 09/12/2013] [Indexed: 11/30/2022]
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40
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King KE, Reddi DM, Ponnamperuma RM, Gerdes M, Weinberg WC. Dysregulated ΔNp63α negatively regulates the maspin promoter in keratinocytes via blocking endogenous p73 binding. Mol Carcinog 2013; 53:698-710. [DOI: 10.1002/mc.22022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 02/04/2013] [Indexed: 12/30/2022]
Affiliation(s)
- Kathryn E. King
- Office of Biotechnology Products; CDER/FDA; Bethesda Maryland
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41
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Moniaga CS, Jeong SK, Egawa G, Nakajima S, Hara-Chikuma M, Jeon JE, Lee SH, Hibino T, Miyachi Y, Kabashima K. Protease activity enhances production of thymic stromal lymphopoietin and basophil accumulation in flaky tail mice. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 182:841-51. [PMID: 23333753 DOI: 10.1016/j.ajpath.2012.11.039] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 10/23/2012] [Accepted: 11/16/2012] [Indexed: 01/31/2023]
Abstract
Epidermal barrier abnormality due to filaggrin deficiency is an important predisposing factor in the development of atopic dermatitis (AD). In addition, the expression of thymic stromal lymphopoietin (TSLP) in keratinocytes (KCs), induced by barrier disruption, can promote type 2 helper T-cell polarization. Protease activity, including protease-activated receptor-2 (PAR-2), is also known to be involved in epidermal barrier function in AD. However, to our knowledge, the relationship between protease activity and filaggrin deficiency from the perspective of AD has not been elucidated. Flaky tail (Flg(ft)) mice, known to have a mutation in the filaggrin gene, were used to assess the role of protease in KCs in the steady state and the mite-induced AD-like skin inflammation model. In the steady state, the expression and activity levels of endogenous proteases, kallikreins 5, 7, and 14, in the skin and TSLP were higher in Flg(ft) than in control mice. In addition, activation of PAR-2 by its agonist induced the production of TSLP in KCs of Flg(ft) mice, which was abrogated by a newly developed PAR-2 antagonist. Application of the PAR-2 antagonist improved symptoms and basophil accumulation in Flg(ft) mice treated with mite extracts. These results suggest that possibly through the PAR-2 activation in KCs, filaggrin deficiency induces TSLP production and basophil accumulation, which play important roles in the establishment of AD.
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Affiliation(s)
- Catharina S Moniaga
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Circulating microRNA-92a and microRNA-21 as novel minimally invasive biomarkers for primary breast cancer. J Cancer Res Clin Oncol 2012; 139:223-9. [PMID: 23052693 PMCID: PMC3549412 DOI: 10.1007/s00432-012-1315-y] [Citation(s) in RCA: 189] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 09/12/2012] [Indexed: 12/11/2022]
Abstract
PURPOSE MicroRNAs (miRNAs) play an essential role in breast malignant tumor development and progression. The development of clinically validated biomarkers for primary breast cancer (BC) has remained an insurmountable task despite other advances in the field of cancer molecular biology. The objective of this study is to investigate the differential expression of miRNAs and the potential of circulating microRNAs as novel primary breast cancer biomarkers. METHODS Our analyses were performed on 48 tissue and 100 serum samples of patients with primary BC and a set of 20 control samples of healthy women, respectively. The relative expression of ten candidate miRNAs (miR-106b, miR-125b, miR-17, miR-185, miR-21, miR-558, miR-625, miR-665, miR-92a, and miR-93) from the results of four bioinformatics approaches and literature curation was measured by real-time quantitative reverse transcription PCR (qRT-PCR). RESULTS The level of miR-92a was significantly lower, while miR-21 was higher, as previous reports, in tissue and serum samples of BC than that of healthy controls (p < 0.001). Logistic regression and receiver operating characteristic curve analyses revealed the significant and independent value (p < 0.001) of the miR-92a and miR-21 expression quantification in serums. Moreover, the comparison with the clinicopathologic data of the BC patients showed that decreased levels of miR-92a and increased levels of miR-21 were associated with tumor size and a positive lymph node status (p < 0.001). CONCLUSIONS These findings suggest that many miRNAs expressions are altered in BC, whose expression profiling may provide a useful clue for the pathophysiological research. Circulating miR-92a has potential use as novel breast cancer biomarker, which is comparable to miR-21.
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Kaneko T, Murakami M, Kishibe M, Brattsand M, Morhenn VB, Ishida-Yamamoto A, Iizuka H. Over-expression of kallikrein related peptidases in palmoplantar pustulosis. J Dermatol Sci 2012; 67:73-6. [DOI: 10.1016/j.jdermsci.2012.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Revised: 03/20/2012] [Accepted: 03/25/2012] [Indexed: 11/17/2022]
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Doxycycline indirectly inhibits proteolytic activation of tryptic kallikrein-related peptidases and activation of cathelicidin. J Invest Dermatol 2012; 132:1435-42. [PMID: 22336948 PMCID: PMC4169281 DOI: 10.1038/jid.2012.14] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The increased abundance and activity of cathelicidin and kallikrein 5 (KLK5), a predominant trypsin-like serine protease (TLSP) in the stratum corneum, have been implicated in the pathogenesis of rosacea, a disorder treated by the use of low-dose doxycycline. Here we hypothesized that doxycycline can inhibit activation of tryptic KLKs through an indirect mechanism by inhibition of matrix metalloproteinases (MMPs) in keratinocytes. The capacity of doxycycline to directly inhibit enzyme activity was measured in surface collections of human facial skin and extracts of cultured keratinocytes by fluorescence polarization assay against fluorogenic substrates specific for MMPs or TLSPs. Doxycycline did inhibit MMP activity but did not directly inhibit serine protease activity against a fluorogenic substrate specific for TLSPs. However, when doxycycline or other MMP inhibitors were added to live keratinocytes during the production of tryptic KLKs, this treatment indirectly resulted in decreased TLSP activity. Furthermore, doxycycline under these conditions inhibited the generation of the cathelicidin peptide LL-37 from its precursor protein hCAP18, a process dependent on KLK activity. These results demonstrate that doxycycline can prevent cathelicidin activation, and suggest a previously unknown mechanism of action for doxycycline through inhibiting generation of active cathelicidin peptides.
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45
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Mohammed D, Matts PJ, Hadgraft J, Lane ME. Influence of Aqueous Cream BP on corneocyte size, maturity, skin protease activity, protein content and transepidermal water loss. Br J Dermatol 2012; 164:1304-10. [PMID: 21443526 DOI: 10.1111/j.1365-2133.2011.10338.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Aqueous Cream BP is frequently prescribed for patients with eczema and is known to induce sensitivity in certain patients and also to decrease the thickness of the stratum corneum (SC). We have previously reported methodology to quantify corneocyte maturity and size, protease activity and protein content within different levels of the SC. OBJECTIVES The aim of the present study was to investigate changes in corneocyte size, corneocyte maturity, selected protease activities, protein content and transepidermal water loss (TEWL) in normal skin after a 28-day application of Aqueous Cream BP. METHODS The left and right mid volar forearms of six healthy female volunteers were selected as the study sites. Aqueous Cream BP was applied twice daily to treated sites for 28 days. At the end of this period, the site was tape-stripped and corneocyte maturity, corneocyte size and protease activity of the desquamatory kallikrein proteases, KLK5 and KLK7, and the inflammatory proteases tryptase and plasmin were measured. Protein content and TEWL measurements were also recorded. RESULTS Corneocyte maturity and size decreased with increasing number of tape strips, and were significantly lower in treated sites compared with untreated sites. Protease activity and TEWL values were higher (P < 0·05) for the treated sites compared with untreated sites. The amount of protein removed from deeper layers of treated sites was significantly lower than from untreated sites. CONCLUSIONS We report rapid minimally invasive measures of the effects of Aqueous Cream BP at the cellular and molecular level of the skin. Treatment with this formulation is associated with increased desquamatory and inflammatory protease activity. Changes in corneocyte maturity and size are also indicative of accelerated skin turnover induced by chronic application of this emollient. These findings question firmly the routine prescription of this preparation as a moisturizer in patients with atopic dermatitis.
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Affiliation(s)
- D Mohammed
- Department of Pharmaceutics, School of Pharmacy, London WC1N 1AX, UK
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46
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Reiss K, Meyer-Hoffert U, Fischer J, Sperrhacke M, Wu Z, Dimitrieva O, Krenek P, Suchanova S, Buryova H, Brauer R, Sedlacek R. Expression and regulation of murine SPINK12, a potential orthologue of human LEKTI2. Exp Dermatol 2011; 20:905-10. [DOI: 10.1111/j.1600-0625.2011.01355.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Fortugno P, Bresciani A, Paolini C, Pazzagli C, El Hachem M, D'Alessio M, Zambruno G. Proteolytic activation cascade of the Netherton syndrome-defective protein, LEKTI, in the epidermis: implications for skin homeostasis. J Invest Dermatol 2011; 131:2223-32. [PMID: 21697885 DOI: 10.1038/jid.2011.174] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Lympho-epithelial Kazal-type-related inhibitor (LEKTI) is the defective protein of the ichthyosiform condition Netherton syndrome (NS). Strongly expressed in the most differentiated epidermal layers, LEKTI is a serine protease inhibitor synthesized as three different high-molecular-weight precursors, which are rapidly processed into shorter fragments and secreted extracellularly. LEKTI polypeptides interact with several proteases to regulate skin barrier homeostasis as well as inflammatory and/or immunoallergic responses. Here, by combining antibody mapping, N-terminal sequencing, and site-specific mutagenesis, we defined the amino-acid sequence of most of the LEKTI polypeptides physiologically generated in human epidermis. We also identified three processing intermediates not described so far. Hence, a proteolytic cascade model for LEKTI activation is proposed. We then pinpointed the most effective fragments against the desquamation-related kallikreins (KLKs) and we proved that LEKTI is involved in stratum corneum shedding as some of its polypeptides inhibit the KLK-mediated proteolysis of desmoglein-1. Finally, we quantified the individual LEKTI fragments in the uppermost epidermis, showing that the ratios between LEKTI polypeptides and active KLK5 are compatible with a fine-tuned inhibition. These findings are relevant both to the understanding of skin homeostasis regulation and to the design of novel therapeutic strategies for NS.
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Affiliation(s)
- Paola Fortugno
- Laboratory of Molecular and Cell Biology, Istituto Dermopatico dell'Immacolata IDI-IRCCS, Rome, Italy.
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Avgeris M, Papachristopoulou G, Polychronis A, Scorilas A. Down-regulation of kallikrein-related peptidase 5 (KLK5) expression in breast cancer patients: a biomarker for the differential diagnosis of breast lesions. Clin Proteomics 2011; 8:5. [PMID: 21906360 PMCID: PMC3167201 DOI: 10.1186/1559-0275-8-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 05/31/2011] [Indexed: 01/02/2023] Open
Abstract
Background Kallikrein-related peptidase 5 (KLK5) is a secreted trypsin-like protease of the KLK family, encoded by the KLK5 gene. KLK5 has been found to cleave various extracellular matrix components, as well as to activate several other KLK proteases, triggering the stimulation of tissue microenvironment proteolytic cascades. Material and Methods KLK5 expression levels were quantified in 102 cancerous and benign breast tissue specimens, obtained by randomly chosen patients, using RT-qPCR assay. Subsequently, advanced biostatistics were applied in order to analyze the KLK5 expression profile in the two patients' cohorts and also to evaluate its clinical significance for the discrimination of breast tumors. Results A statistically significant (p < 0.001) down-regulation of the KLK5 expression levels were observed in the malignant specimens compared to the benign ones. Logistic regression and ROC curve analysis revealed the significant (p < 0.001) and the independent (p < 0.001) value of the KLK5 expression quantification, for the discrimination of the malignant from the benign mammary gland biopsies. Moreover, KLK5 expression levels correlate with the pre-menopausal status (p < 0.005) as well as the ER-negative staining (p = 0.028) of women with breast cancer. Conclusions The quantification of KLK5 expression in breast tissue biopsies may be considered as a novel and independent biomarker for the differential diagnosis between malignant and benign tumors of the mammary gland.
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Affiliation(s)
- Margaritis Avgeris
- Department of Biochemistry and Molecular Biology, University of Athens, Panepistimiopolis, 15701 Athens, Greece.
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Mohammed D, Matts P, Hadgraft J, Lane M. Depth profiling of stratum corneum biophysical and molecular properties. Br J Dermatol 2011; 164:957-65. [DOI: 10.1111/j.1365-2133.2011.10211.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dorn J, Magdolen V, Gkazepis A, Gerte T, Harlozinska A, Sedlaczek P, Diamandis EP, Schuster T, Harbeck N, Kiechle M, Schmitt M. Circulating biomarker tissue kallikrein-related peptidase KLK5 impacts ovarian cancer patients' survival. Ann Oncol 2011; 22:1783-90. [PMID: 21273346 DOI: 10.1093/annonc/mdq701] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Effective cancer biomarkers for early detection, prognosis, or therapy response prediction are urgently needed in ovarian cancer. Kallikrein-related peptidases, including KLK5, have been reported to play an important role in the course of the disease. PATIENTS AND METHODS KLK5 antigen content was determined by enzyme-linked immunosorbent assay in ovarian cancer patients' [FIGO (International Federation of Gynecology and Obstetrics) stages I-IV, n = 52] serum as well as ascitic fluid and compared with KLK5 content in serum of patients with benign ovarian tumors (n = 45). RESULTS KLK5 antigen content was significantly elevated in the serum of ovarian cancer patients compared with the serum of patients with benign ovarian tumors. Forty-two of 52 ovarian cancer serum samples, 42 of 43 benign ovarian tumor serum samples, and all 41 ascitic fluid samples were KLK5 positive. Elevated KLK5 antigen in serum and ascitic fluid of ovarian cancer patients was a prognostic factor for progression-free survival. CONCLUSIONS Our data support the finding that ovarian cancer patients release significant amounts of KLK5 into serum and ascitic fluid but KLK5 antigen is low in serum of patients with benign ovarian tumors. Increased serum and ascitic fluid KLK5 levels are associated with poor patient outcome, thus underlining the importance of KLK5 as a biomarker for early detection as well as for disease management in ovarian cancer.
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Affiliation(s)
- J Dorn
- Department of Obstetrics and Gynecology, Technical University of Munich, Munich, Germany.
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