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Radisky ES. Extracellular proteolysis in cancer: Proteases, substrates, and mechanisms in tumor progression and metastasis. J Biol Chem 2024; 300:107347. [PMID: 38718867 PMCID: PMC11170211 DOI: 10.1016/j.jbc.2024.107347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 04/08/2024] [Accepted: 04/25/2024] [Indexed: 06/02/2024] Open
Abstract
A vast ensemble of extracellular proteins influences the development and progression of cancer, shaped and reshaped by a complex network of extracellular proteases. These proteases, belonging to the distinct classes of metalloproteases, serine proteases, cysteine proteases, and aspartic proteases, play a critical role in cancer. They often become dysregulated in cancer, with increases in pathological protease activity frequently driven by the loss of normal latency controls, diminished regulation by endogenous protease inhibitors, and changes in localization. Dysregulated proteases accelerate tumor progression and metastasis by degrading protein barriers within the extracellular matrix (ECM), stimulating tumor growth, reactivating dormant tumor cells, facilitating tumor cell escape from immune surveillance, and shifting stromal cells toward cancer-promoting behaviors through the precise proteolysis of specific substrates to alter their functions. These crucial substrates include ECM proteins and proteoglycans, soluble proteins secreted by tumor and stromal cells, and extracellular domains of cell surface proteins, including membrane receptors and adhesion proteins. The complexity of the extracellular protease web presents a significant challenge to untangle. Nevertheless, technological strides in proteomics, chemical biology, and the development of new probes and reagents are enabling progress and advancing our understanding of the pivotal importance of extracellular proteolysis in cancer.
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Affiliation(s)
- Evette S Radisky
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville, Florida, USA.
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2
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Ehret E, Stroh S, Auberson M, Ino F, Jäger Y, Maillard M, Szabo R, Bugge TH, Frateschi S, Hummler E. Kidney-Specific Membrane-Bound Serine Proteases CAP1/Prss8 and CAP3/St14 Affect ENaC Subunit Abundances but Not Its Activity. Cells 2023; 12:2342. [PMID: 37830556 PMCID: PMC10572026 DOI: 10.3390/cells12192342] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/06/2023] [Accepted: 09/12/2023] [Indexed: 10/14/2023] Open
Abstract
The serine proteases CAP1/Prss8 and CAP3/St14 are identified as ENaC channel-activating proteases in vitro, highly suggesting that they are required for proteolytic activation of ENaC in vivo. The present study tested whether CAP3/St14 is relevant for renal proteolytic ENaC activation and affects ENaC-mediated Na+ absorption following Na+ deprivation conditions. CAP3/St14 knockout mice exhibit a significant decrease in CAP1/Prss8 protein expression with altered ENaC subunit and decreased pNCC protein abundances but overall maintain sodium balance. RNAscope-based analyses reveal co-expression of CAP3/St14 and CAP1/Prss8 with alpha ENaC in distal tubules of the cortex from wild-type mice. Double CAP1/Prss8; CAP3/St14-deficiency maintained Na+ and K+ balance on a Na+-deprived diet, restored ENaC subunit protein abundances but showed reduced NCC activity under Na+ deprivation. Overall, our data clearly show that CAP3/St14 is not required for direct proteolytic activation of ENaC but for its protein abundance. Our study reveals a complex regulation of ENaC by these serine proteases on the expression level rather than on its proteolytic activation.
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Affiliation(s)
- Elodie Ehret
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
- National Center of Competence in Research “Kidney.CH”, 1011 Lausanne, Switzerland
| | - Sévan Stroh
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
| | - Muriel Auberson
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
| | - Frédérique Ino
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
- Department of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Yannick Jäger
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
- Department of Pharmacology, Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Marc Maillard
- Service of Nephrology, Department of Medicine, Lausanne University Hospital (CHUV), 1005 Lausanne, Switzerland
| | - Roman Szabo
- National Institutes of Health/NIDCR, Bethesda, MD 20892, USA
| | - Thomas H. Bugge
- National Institutes of Health/NIDCR, Bethesda, MD 20892, USA
| | - Simona Frateschi
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
| | - Edith Hummler
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (E.E.)
- National Center of Competence in Research “Kidney.CH”, 1011 Lausanne, Switzerland
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3
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Lu DD, Huang N, Li SWA, Fang JR, Lai CH, Wang JK, Chan KS, Johnson MD, Lin CY. HAI-1 is required for the novel role of FGFBP1 in maintenance of cell morphology and F-actin rearrangement in human keratinocytes. Hum Cell 2023:10.1007/s13577-023-00906-6. [PMID: 37076641 DOI: 10.1007/s13577-023-00906-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/31/2023] [Indexed: 04/21/2023]
Abstract
Formation and maintenance of skin barrier function require tightly controlled membrane-associated proteolysis, in which the integral membrane Kunitz-type serine protease inhibitor, HAI-1, functions as the primary inhibitor of the membrane-associated serine proteases, matriptase and prostasin. Previously, HAI-1 loss in HaCaT human keratinocytes resulted in an expected increase in prostasin proteolysis but a paradoxical decrease in matriptase proteolysis. The paradoxical decrease in shed active matriptase is further investigated in this study with an unexpected discovery of novel functions of fibroblast growth factor-binding protein 1 (FGFBP1), which acts as an extracellular ligand that can rapidly elicit F-actin rearrangement and subsequently affect the morphology of human keratinocytes. This novel growth factor-like function is in stark contrast to the canonical activity of this protein through interactions with FGFs for its pathophysiological functions. This discovery began with the observation that HAI-1 KO HaCaT cells lose the characteristic cobblestone morphology of the parental cells and exhibit aberrant F-actin formation along with altered subcellular targeting of matriptase and HAI-2. The alterations in cell morphology and F-actin status caused by targeted HAI-1 deletion can be restored by treatment with conditioned medium from parental HaCaT cells, in which FGFBP1 was identified by tandem mass spectrometry. Recombinant FGFBP1 down to 1 ng/ml was able to revert the changes caused by HAI-1 loss. Our study reveals a novel function of FGFBP1 in the maintenance of keratinocyte morphology, which depends on HAI-1.
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Affiliation(s)
- Dajun D Lu
- Lombardi Comprehensive Cancer Center, Department of Oncology, W422 Research Building, Georgetown University, W416 Research Building, 3970 Reservoir Road, NW, Washington, DC, 20057, USA
| | - Nanxi Huang
- Lombardi Comprehensive Cancer Center, Department of Oncology, W422 Research Building, Georgetown University, W416 Research Building, 3970 Reservoir Road, NW, Washington, DC, 20057, USA
| | - Sheng-Wen A Li
- School of Medicine National Defense Medical Center, Taipei, 114, Taiwan
| | - Jessica R Fang
- , Winston Churchill High School, Potomac, MD, 20854, USA
| | - Chih-Hsin Lai
- Department of Dentistry Renai Branch, Taipei City Hospital, Taipei, 106, Taiwan
| | - Jehng-Kang Wang
- Department of Biochemistry, National Defense Medical Center, Taipei, 114, Taiwan
| | - Khee-Siang Chan
- Department of Intensive Care Medicine, Chi Mei Medical Center, No.901, Chung-Hwa Road, Yung-Kang District, Tainan City, 71004, Taiwan.
| | - Michael D Johnson
- Lombardi Comprehensive Cancer Center, Department of Oncology, W422 Research Building, Georgetown University, W416 Research Building, 3970 Reservoir Road, NW, Washington, DC, 20057, USA.
| | - Chen-Yong Lin
- Lombardi Comprehensive Cancer Center, Department of Oncology, W422 Research Building, Georgetown University, W416 Research Building, 3970 Reservoir Road, NW, Washington, DC, 20057, USA.
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Huang N, Wang Q, Chen CY, Hu JM, Wang JK, Chang PY, Johnson MD, Lin CY. N-glycosylation on Asn-57 is required for the correct HAI-2 protein folding and protease inhibitory activity. Glycobiology 2023; 33:203-214. [PMID: 36637420 PMCID: PMC10114645 DOI: 10.1093/glycob/cwad002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/13/2022] [Accepted: 01/02/2023] [Indexed: 01/14/2023] Open
Abstract
Hepatocyte growth factor activator inhibitor (HAI)-2 is an integral membrane Kunitz-type serine protease inhibitor that regulates the proteolysis of matriptase and prostasin in a cell-type selective manner. The cell-type selective nature of HAI-2 function depends largely on whether the inhibitor and potential target enzymes are targeted to locations in close proximity. The N-glycan moiety of HAI-2 can function as a subcellular targeting signal. HAI-2 is synthesized with 1 of 2 different N-glycan modifications: one of oligomannose-type, which largely remains in the endoplasmic reticulum/GA, and another of complex-type, which is targeted toward the apical surface in vesicle-like structures, and could function as an inhibitor of matriptase and prostasin. HAI-2 contains 2 putative N-glycosylation sites, Asn-57 and Asn-94, point mutations of which were generated and characterized in this study. The protein expression profile of the HAI-2 mutants indicates that Asn-57, and not Asn-94, is responsible for the N-glycosylation of both HAI-2 species, suggesting that the form with oligomannose-type N-glycan is the precursor of the form with complex-type N-glycan. Unexpectedly, the vast majority of non-glycosylated HAI-2 is synthesized into multiple disulfide-linked oligomers, which lack protease inhibitory function, likely due to distorted conformations caused by the disarrayed disulfide linkages. Although forced expression of HAI-2 in HAI-2 knockout cells artificially enhances HAI-2 oligomerization, disulfide-linked HAI-2 oligomers can also be observed in unmodified cells. These results suggest that N-glycosylation on Asn-57 is required for folding into a functional HAI-2 with full protease suppressive activity and correct subcellular targeting signal.
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Affiliation(s)
- Nanxi Huang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, United States
| | - Qiaochu Wang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, United States
| | - Chao-Yang Chen
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan, ROC
- Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital, Taipei 114, Taiwan, ROC
| | - Je-Ming Hu
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan, ROC
- Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital, Taipei 114, Taiwan, ROC
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan, ROC
| | - Jehng-Kang Wang
- Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan, ROC
| | - Ping-Ying Chang
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan, ROC
- Division of Hematology/Oncology, Department of internal medicine, Tri-Service General Hospital, Taipei 114, Taiwan, ROC
| | - Michael D Johnson
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, United States
| | - Chen-Yong Lin
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, United States
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5
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Sotiropoulou G, Zingkou E, Pampalakis G. Reconstructing the epidermal proteolytic cascades in health and disease. J Pathol 2022; 257:545-560. [PMID: 35218558 DOI: 10.1002/path.5888] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/24/2022] [Accepted: 02/24/2022] [Indexed: 11/08/2022]
Abstract
The epidermis is the outer stratified epithelium of the skin, forming the physical barrier that is indispensable for homeostasis. Epidermal proteolysis, mainly but not exclusively executed by kallikrein-related peptidases (KLKs), is tightly regulated to ensure maintenance of physiological skin renewal and an intact skin barrier. Perturbation of epidermal proteolytic networks is implicated in a wide array of rare and common skin pathologies of diverse genetic backgrounds. Recent studies of monogenic human skin diseases and newly developed animal models have revealed new mechanisms of regulation of proteolytic pathways in epidermal physiology and in disease states. These new data have challenged some accepted views, for example the role of matriptase in epidermal desquamation, which turned out to be restricted to mouse skin. The significance of PAR2 signaling in skin inflammation should also be reconsidered in the face of recent findings. Cumulatively, recent studies necessitate a sophisticated redefinition of the proteolytic and signaling pathways that operate in human skin. We elaborate how epidermal proteolysis is finely regulated at multiple levels, and in a spatial manner that was not taken into consideration so far, in which specific proteases are confined to distinct epidermal sublayers. Of interest, transglutaminases have emerged as regulators of epidermal proteolysis and desquamation by spatially fixing endogenous protease inhibitors, constituting regulatory factors that were not recognized before. Furthermore, new evidence suggests a link between proteolysis and lipid metabolism. By synthesis of established notions and recent discoveries, we provide an up-to-date critical parathesis of current knowledge and the extended complexity of proteolysis regulation and signaling pathways in skin. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, 265 04, Greece
| | - Eleni Zingkou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, 265 04, Greece
| | - Georgios Pampalakis
- Department of Pharmacology-Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, 541 24, Greece
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Huang N, Barndt RB, Lu DD, Wang Q, Huang SM, Wang JK, Chang PY, Chen CY, Hu JM, Su HC, Johnson MD, Lin CY. The difference in the intracellular Arg/Lys-rich and EHLVY motifs contributes to distinct subcellular distribution of HAI-1 versus HAI-2. Hum Cell 2021; 35:163-178. [PMID: 34643933 DOI: 10.1007/s13577-021-00632-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/04/2021] [Indexed: 11/26/2022]
Abstract
The integral membrane, Kunitz-type, serine protease inhibitors, HAI-1 and HAI-2, closely resemble one another structurally and with regard to their specificity and potency against proteases. Structural complementarity between the Kunitz domains and serine protease domains renders the membrane-associated serine proteases, matriptase and prostasin, the primary target proteases of the HAIs. The shared biochemical enzyme-inhibitor relationships are, however, at odds with their behavior at the cellular level, where HAI-1 appears to be the default inhibitor of these proteases and HAI-2 a cell-type-selective inhibitor, even though they are widely co-expressed. The limited motility of these proteins caused by their membrane anchorages may require their co-localization within a certain distance to allow the establishment of a cellular level functional relationship between the proteases and the inhibitors. The differences in their subcellular localization with HAI-1 both inside the cell and on the cell surface, compared to HAI-2 predominately in intracellular granules has, therefore, been implicated in the differential manner of their control of matriptase and prostasin proteolysis. The targeting signals present in the intracellular domains of the HAIs are systematically investigated herein. Studies involving domain swap and point mutation, in combination with immunocytochemistry and cell surface biotinylation/avidin depletion, reveal that the different subcellular localization between the HAIs can largely be attributed to differences in the intracellular Arg/Lys-rich and EHLVY motifs. These intrinsic differences in the targeting signal render the HAIs as two independent rather than redundant proteolysis regulators.
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Affiliation(s)
- Nanxi Huang
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412, W416 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Robert B Barndt
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412, W416 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Dajun D Lu
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412, W416 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Qiaochu Wang
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412, W416 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei, 114, Taiwan, ROC
| | - Jehng-Kang Wang
- Department of Biochemistry, National Defense Medical Center, Taipei, 114, Taiwan, ROC
| | - Ping-Ying Chang
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-Service General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chao-Yang Chen
- School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC
- Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital Taipei, Taipei, Taiwan, ROC
| | - Je-Ming Hu
- School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC
- Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital Taipei, Taipei, Taiwan, ROC
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Hui-Chen Su
- Department of Pharmacy, Chi-Mei Medical Center, Tainan, Taiwan, ROC.
| | - Michael D Johnson
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412, W416 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA.
| | - Chen-Yong Lin
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412, W416 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA.
- Department of Pharmacy, Chi-Mei Medical Center, Tainan, Taiwan, ROC.
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7
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Barndt RB, Lee MJ, Huang N, Lu DD, Lee SC, Du PW, Chang CC, Tsai PFB, Huang YSK, Chang HM, Wang JK, Lai CH, Johnson MD, Lin CY. Targeted HAI-2 deletion causes excessive proteolysis with prolonged active prostasin and depletion of HAI-1 monomer in intestinal but not epidermal epithelial cells. Hum Mol Genet 2021; 30:1833-1850. [PMID: 34089062 PMCID: PMC8444455 DOI: 10.1093/hmg/ddab150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 11/12/2022] Open
Abstract
Mutations of SPINT2, the gene encoding the integral membrane, Kunitz-type serine inhibitor HAI-2, primarily affect the intestine, while sparing many other HAI-2-expressing tissues, causing sodium loss in patients with syndromic congenital sodium diarrhea. The membrane-bound serine protease prostasin was previously identified as a HAI-2 target protease in intestinal tissues but not in the skin. In both tissues, the highly related inhibitor HAI-1 is, however, the default inhibitor for prostasin and the type 2 transmembrane serine protease matriptase. This cell-type selective functional linkage may contribute to the organ-selective damage associated with SPINT 2 mutations. To this end, the impact of HAI-2 deletion on matriptase and prostasin proteolysis was, here, compared using Caco-2 human colorectal adenocarcinoma cells and HaCaT human keratinocytes. Greatly enhanced prostasin proteolytic activity with a prolonged half-life and significant depletion of HAI-1 monomer were observed with HAI-2 loss in Caco-2 cells but not HaCaT cells. The constitutive, high level prostasin zymogen activation observed in Caco-2 cells, but not in HaCaT cells, also contributes to the excessive prostasin proteolytic activity caused by HAI-2 loss. HAI-2 deletion also caused increased matriptase zymogen activation, likely as an indirect result of increased prostasin proteolysis. This increase in activated matriptase, however, only had a negligible role in depletion of HAI-1 monomer. Our study suggests that the constitutive, high level of prostasin zymogen activation and the cell-type selective functional relationship between HAI-2 and prostasin renders Caco-2 cells more susceptible than HaCaT cells to the loss of HAI-2, causing a severe imbalance favoring prostasin proteolysis.
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Affiliation(s)
- Robert B Barndt
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
| | - Mon-Juan Lee
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
- Department of Bioscience Technology, Chang Jung Christian University, Tainan 71101, Taiwan
- Department of Medical Science Industries, Chang Jung Christian University, Tainan 71101, Taiwan
| | - Nanxi Huang
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
| | - Dajun D Lu
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
| | - See-Chi Lee
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
| | - Po-Wen Du
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
- Department of Biochemistry National Defense Medical Center, Taipei 114, Taiwan
| | - Chun-Chia Chang
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
| | - Ping-Feng B Tsai
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
| | - Yu-Siou K Huang
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
| | - Hao-Ming Chang
- Department of Surgery, Tri-Service General Hospital, Taipei 114, Taiwan
| | - Jehng-Kang Wang
- Department of Biochemistry National Defense Medical Center, Taipei 114, Taiwan
| | - Chih-Hsin Lai
- Department of Dentistry Renai Branch, Taipei City Hospital, Taipei 106, Taiwan
| | - Michael D Johnson
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
| | - Chen-Yong Lin
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington, DC 20057, USA
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Lu DD, Gu Y, Li SWA, Barndt RJ, Huang SM, Wang JK, Su HC, Johnson MD, Lin CY. Targeted deletion of HAI-1 increases prostasin proteolysis but decreases matriptase proteolysis in human keratinocytes. Hum Cell 2021; 34:771-784. [PMID: 33486722 DOI: 10.1007/s13577-021-00488-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/10/2021] [Indexed: 10/22/2022]
Abstract
Epidermal differentiation and barrier function require well-controlled matriptase and prostasin proteolysis, in which the Kunitz-type serine protease inhibitor HAI-1 represents the primary enzymatic inhibitor for both proteases. HAI-1, however, also functions as a chaperone-like protein necessary for normal matriptase synthesis and intracellular trafficking. Furthermore, other protease inhibitors, such as antithrombin and HAI-2, can also inhibit matriptase and prostasin in solution or in keratinocytes. It remains unclear, therefore, whether aberrant increases in matriptase and prostasin enzymatic activity would be the consequence of targeted deletion of HAI-1 and so subsequently contribute to the epidermal defects observed in HAI-1 knockout mice. The impact of HAI-1 deficiency on matriptase and prostasin proteolysis was, here, investigated in HaCaT human keratinocytes. Our results show that HAI-1 deficiency causes an increase in prostasin proteolysis via increased protein expression and zymogen activation. It remains unclear, however, whether HAI-1 deficiency increases "net" prostasin enzymatic activity because all of the activated prostasin was detected in complexes with HAI-2, suggesting that prostasin enzymatic activity is still under tight control in HAI-1-deficient keratinocytes. Matriptase proteolysis is, however, unexpectedly suppressed by HAI-1 deficiency, as manifested by decreases in zymogen activation, shedding of active matriptase, and matriptase-dependent prostasin zymogen activation. This suppressed proteolysis results mainly from the reduced ability of HAI-1-deficient HaCaT cells to activate matriptase and the rapid inhibition of nascent active matriptase by HAI-2 and other yet-to-be-identified protease inhibitors. Our study provides novel insights with opposite impacts by HAI-1 deficiency on matriptase versus prostasin proteolysis in keratinocytes.
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Affiliation(s)
- Dajun D Lu
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Yayun Gu
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Sheng-Wen A Li
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
| | - Robert J Barndt
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan
| | - Jehng-Kang Wang
- Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan
| | - Hui Chen Su
- Department of Pharmacy, Chi-Mei Medical Center, Tainan, Taiwan.
| | - Michael D Johnson
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA.
| | - Chen-Yong Lin
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building 3970 Reservoir Road NW, Washington, DC, 20057, USA.
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Insights into the regulation of the matriptase-prostasin proteolytic system. Biochem J 2020; 477:4349-4365. [PMID: 33094801 DOI: 10.1042/bcj20200630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 12/24/2022]
Abstract
The membrane-associated prostasin and matriptase belonging to the S1A subfamily of serine proteases, are critical for epithelial development and maintenance. The two proteases are involved in the activation of each other and are both regulated by the protease inhibitors, HAI-1 and HAI-2. The S1A subfamily of serine proteases are generally produced as inactive zymogens requiring a cleavage event to obtain activity. However, contrary to the common case, the zymogen form of matriptase exhibits proteolytic activity, which can be inhibited by HAI-1 and HAI-2, as for the activated counterpart. We provide strong evidence that also prostasin exhibits proteolytic activity in its zymogen form. Furthermore, we show that the activity of zymogen prostasin can be inhibited by HAI-1 and HAI-2. We report that zymogen prostasin is capable of activating zymogen matriptase, but unable to activate its own zymogen form. We propose the existence of an unusual enzyme-enzyme relationship consisting of proteolytically active zymogen forms of both matriptase and prostasin, kept under control by HAI-1 and HAI-2, and located at the pinnacle of an important proteolytic pathway in epithelia. Perturbed balance in this proteolytic system is likely to cause rapid and efficient activation of matriptase by the dual action of zymogen matriptase and zymogen prostasin. Previous studies suggest that the zymogen form of matriptase performs the normal proteolytic functions of the protease, whereas excess matriptase activation likely causes carcinogenesis. HAI-1 and HAI-2 are thus important for the prevention of matriptase activation whether catalysed by zymogen/activated prostasin (this study) or zymogen/activated matriptase (previous studies).
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10
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Chang SC, Chiang CP, Lai CH, Du PWA, Hung YS, Chen YH, Yang HY, Fang HY, Lee SP, Tang HJ, Wang JK, Johnson MD, Lin CY. Matriptase and prostasin proteolytic activities are differentially regulated in normal and wounded skin. Hum Cell 2020; 33:990-1005. [PMID: 32617892 DOI: 10.1007/s13577-020-00385-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 06/02/2020] [Indexed: 01/27/2023]
Abstract
Orchestrated control of multiple overlapping and sequential processes is required for the maintenance of epidermal homeostasis and the response to and recovery from a variety of skin insults. Previous studies indicate that membrane-associated serine protease matriptase and prostasin play essential roles in epidermal development, differentiation, and barrier formation. The control of proteolysis is a highly regulated process, which depends not only on gene expression but also on zymogen activation and the balance between protease and protease inhibitor. Subcellular localization can affect the accessibility of protease inhibitors to proteases and, thus, also represents an integral component of the control of proteolysis. To understand how membrane-associated proteolysis is regulated in human skin, these key aspects of matriptase and prostasin were determined in normal and injured human skin by immunohistochemistry. This staining shows that matriptase is expressed predominantly in the zymogen form at the periphery of basal and spinous keratinocytes, and prostasin appears to be constitutively activated at high levels in polarized organelle-like structures of the granular keratinocytes in the adjacent quiescent skin. The membrane-associated proteolysis appears to be elevated via an increase in matriptase zymogen activation and prostasin protein expression in areas of skin recovering from epidermal insults. There was no noticeable change observed in other regulatory aspects, including the expression and tissue distribution of their cognate inhibitors HAI-1 and HAI-2. This study reveals that the membrane-associated proteolysis may be a critical epidermal mechanism involved in responding to, and recovering from, damage to human skin.
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Affiliation(s)
- Shun-Cheng Chang
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital, New Taipei City, 235, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Chien-Ping Chiang
- Department of Dermatology, Tri-Service General Hospital, Taipei, 114, Taiwan.,Department of Biochemistry, National Defense Medical Center, No. 161, Sec. 6, Ming-Chung E. Rd, Taipei, 114, Taiwan
| | - Chih-Hsin Lai
- Department of Dentistry Renai Branch, Taipei City Hospital, Taipei, 106, Taiwan
| | - Po-Wen A Du
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building, 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Yu-Sin Hung
- Department of Biochemistry, National Defense Medical Center, No. 161, Sec. 6, Ming-Chung E. Rd, Taipei, 114, Taiwan
| | - Yu-Hsuan Chen
- Department of Biochemistry, National Defense Medical Center, No. 161, Sec. 6, Ming-Chung E. Rd, Taipei, 114, Taiwan
| | - Hui-Yu Yang
- Department of Biochemistry, National Defense Medical Center, No. 161, Sec. 6, Ming-Chung E. Rd, Taipei, 114, Taiwan
| | - Hao-Yu Fang
- Department of Biochemistry, National Defense Medical Center, No. 161, Sec. 6, Ming-Chung E. Rd, Taipei, 114, Taiwan
| | - Shiao-Pieng Lee
- Department of Biomedical Engineering, National Defense Medical Center, Taipei, 114, Taiwan.,Department of Oral and Maxillofacial Surgery, Tri-Service General Hospital, Taipei, 114, Taiwan
| | - Hung-Jen Tang
- Section of Infectious Diseases, Internal Medicine, Chi-Mei Medical Center, No.901, Chung-Hwa Rd., Yung-Kang Dist., Tainan City, 71004, Taiwan, ROC.
| | - Jehng-Kang Wang
- Department of Biochemistry, National Defense Medical Center, No. 161, Sec. 6, Ming-Chung E. Rd, Taipei, 114, Taiwan.
| | - Michael D Johnson
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building, 3970 Reservoir Road NW, Washington, DC, 20057, USA
| | - Chen-Yong Lin
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, W412 Research Building, 3970 Reservoir Road NW, Washington, DC, 20057, USA.
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11
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Touati A, Saeidian AH, Youssefian L, Faghankhani M, Niaziorimi F, Pajouhanfar S, Vahidnezhad H, Uitto J. The matriptase-prostasin proteolytic cascade in dermatologic diseases. Exp Dermatol 2020; 29:580-587. [PMID: 32347581 DOI: 10.1111/exd.14104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 01/17/2023]
Abstract
The proper development and function of skin and hair are dependent on proteolytic activities. Specifically, the matriptase-prostasin cascade is a series of proteolytic reactions in the epidermis integral to normal regulation of desquamation. An increasing amount of research describing this pathway has recently become available, and the importance of this pathway is exhibited by the association of genetic defects in this pathway with human diseases of the skin and hair. Given the relevance of this pathway to dermatology, we provide a review of the current understanding of its relevance to distinct clinical entities, including ichthyosis-hypotrichosis and Netherton syndromes.
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Affiliation(s)
- Andrew Touati
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoomeh Faghankhani
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Fatemeh Niaziorimi
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Sara Pajouhanfar
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Biotechnology Research Center, Department of Molecular Medicine, Pasteur Institute of Iran, Tehran, Iran
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
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12
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Lee SP, Kao CY, Chang SC, Chiu YL, Chen YJ, Chen MHG, Chang CC, Lin YW, Chiang CP, Wang JK, Lin CY, Johnson MD. Tissue distribution and subcellular localizations determine in vivo functional relationship among prostasin, matriptase, HAI-1, and HAI-2 in human skin. PLoS One 2018; 13:e0192632. [PMID: 29438412 PMCID: PMC5811018 DOI: 10.1371/journal.pone.0192632] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/26/2018] [Indexed: 11/23/2022] Open
Abstract
The membrane-bound serine proteases prostasin and matriptase and the Kunitz-type protease inhibitors HAI-1 and HAI-2 are all expressed in human skin and may form a tightly regulated proteolysis network, contributing to skin pathophysiology. Evidence from other systems, however, suggests that the relationship between matriptase and prostasin and between the proteases and the inhibitors can be context-dependent. In this study the in vivo zymogen activation and protease inhibition status of matriptase and prostasin were investigated in the human skin. Immunohistochemistry detected high levels of activated prostasin in the granular layer, but only low levels of activated matriptase restricted to the basal layer. Immunoblot analysis of foreskin lysates confirmed this in vivo zymogen activation status and further revealed that HAI-1 but not HAI-2 is the prominent inhibitor for prostasin and matriptase in skin. The zymogen activation status and location of the proteases does not support a close functional relation between matriptase and prostasin in the human skin. The limited role for HAI-2 in the inhibition of matriptase and prostasin is the result of its primarily intracellular localization in basal and spinous layer keratinocytes, which probably prevents the Kunitz inhibitor from interacting with active prostasin or matriptase. In contrast, the cell surface expression of HAI-1 in all viable epidermal layers renders it an effective regulator for matriptase and prostasin. Collectively, our study suggests the importance of tissue distribution and subcellular localization in the functional relationship between proteases and protease inhibitors.
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Affiliation(s)
- Shiao-Pieng Lee
- School of Dentistry, National Defense Medical Center, Taipei, Taiwan
- Department of Dentistry, Tri-Service General Hospital, Taipei, Taiwan
| | - Chen-Yu Kao
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
- Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Shun-Cheng Chang
- Division of Plastic Surgery, Department of Surgery, Shuang-Ho Hospital, Taipei, Taiwan
- Department of Surgery, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Lin Chiu
- Department of Biochemistry National Defense Medical Center, Taipei, Taiwan
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University Washington DC, United States of America
| | - Yen-Ju Chen
- Department of Biochemistry National Defense Medical Center, Taipei, Taiwan
| | | | - Chun-Chia Chang
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Wen Lin
- Department of Biochemistry National Defense Medical Center, Taipei, Taiwan
- Lombardi Comprehensive Cancer Center, Department of Oncology Georgetown University Washington DC, United States of America
| | - Chien-Ping Chiang
- Department of Biochemistry National Defense Medical Center, Taipei, Taiwan
- Department of Dermatology, Tri-Service General Hospital, Taipei, Taiwan
- * E-mail:
| | - Jehng-Kang Wang
- Department of Biochemistry National Defense Medical Center, Taipei, Taiwan
| | - Chen-Yong Lin
- Department of Dermatology, Tri-Service General Hospital, Taipei, Taiwan
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13
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Hepatocyte growth factor activator inhibitor type-2 (HAI-2)/ SPINT2 contributes to invasive growth of oral squamous cell carcinoma cells. Oncotarget 2018; 9:11691-11706. [PMID: 29545930 PMCID: PMC5837738 DOI: 10.18632/oncotarget.24450] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/01/2018] [Indexed: 11/25/2022] Open
Abstract
Hepatocyte growth factor activator inhibitor (HAI)-1/SPINT1 and HAI-2/SPINT2 are membrane-anchored protease inhibitors having homologous Kunitz-type inhibitor domains. They regulate membrane-anchored serine proteases, such as matriptase and prostasin. Whereas HAI-1 suppresses the neoplastic progression of keratinocytes to invasive squamous cell carcinoma (SCC) through matriptase inhibition, the role of HAI-2 in keratinocytes is poorly understood. In vitro homozygous knockout of the SPINT2 gene suppressed the proliferation of two oral SCC (OSCC) lines (SAS and HSC3) but not the growth of a non-tumorigenic keratinocyte line (HaCaT). Reversion of HAI-2 abrogated the growth suppression. Matrigel invasion of both OSCC lines was also suppressed by the loss of HAI-2. The levels of prostasin protein were markedly increased in HAI-2-deficient cells, and knockdown of prostasin alleviated the HAI-2 loss-induced suppression of OSCC cell invasion. Therefore, HAI-2 has a pro-invasive role in OSCC cells through suppression of prostasin. In surgically resected OSCC tissues, HAI-2 immunoreactivity increased along with neoplastic progression, showing intense immunoreactivities in invasive OSCC cells. In summary, HAI-2 is required for invasive growth of OSCC cells and may contribute to OSCC progression.
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