1
|
Laureano AF, Vigato AA, Puzer L, de Araujo DR. Recombinant scFv-Fc Anti-kallikrein 7 Antibody-Loaded Thermosensitive Hydrogels Against Skin Desquamation Disorders. ACS APPLIED BIO MATERIALS 2024; 7:4486-4496. [PMID: 38886921 PMCID: PMC11253099 DOI: 10.1021/acsabm.4c00371] [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: 03/17/2024] [Revised: 06/01/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024]
Abstract
Human tissue kallikrein-related peptidase 7 (KLK7) is a serine protease implicated in the physiology of skin desquamation, and its uncontrolled activity can lead to chronic diseases such as psoriasis, atopic dermatitis, and Netherton syndrome. For this reason, kallikrein 7 has been identified as a potential therapeutic target. This work aimed to evaluate Pluronic (PL) hydrogels as topical carriers of four specific scFv-Fc antibodies to inhibit KLK7. The hydrogels comprised PL F127 (30% w/v) alone and a binary F127/P123 (28-2% w/v) system. Each formulation was loaded with 1 μg/mL of each antibody and characterized by physicochemical and pharmaceutical techniques, considering antibody-micelle interactions and hydrogel behavior as smart delivery systems. Results showed that the antibodies were successfully loaded into the PL-based systems, and the sol-gel transition temperature was shifted to high values after the P123 addition. The antibodies released from the gels preserved their rheological properties (G' > G'', 35- to 41-fold) and inhibitory activity against KLK7, even after 24 h. This work presented potential agents targeting KLK7 that may provide strategies for treating skin abnormalities.
Collapse
Affiliation(s)
- Ana Flávia
Santarine Laureano
- Department
of Surgery, Center for Transplantation Sciences, Massachusetts General Hospital & Harvard Medical School, CNY149 13th Street, Charlestown, Boston, Massachusetts 02129, United States
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Al. da Universidade, s/n-Anchieta, São
Bernardo do Campo, SP 09606-045, Brazil
| | - Aryane Alves Vigato
- Department
of Biomedical Science (BMV), Faculty of Health and Society, Malmö University, Malmö 20506, Sweden
- Biofilms−Research
Center for Biointerfaces, Malmö University, Malmö 20506, Sweden
| | - Luciano Puzer
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Al. da Universidade, s/n-Anchieta, São
Bernardo do Campo, SP 09606-045, Brazil
| | - Daniele Ribeiro de Araujo
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Av. dos
Estados, 5001, Bloco A, Torre 3, Santo André, SP 09210-580, Brazil
- Departamento
de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Botucatu, 862, Vila Clementino, Sao Paulo, SP 04023-062, Brazil
| |
Collapse
|
2
|
Lehto TPK, Kovanen RM, Lintula S, Malén A, Stürenberg C, Erickson A, Pulkka OP, Stenman UH, Diamandis EP, Rannikko A, Mirtti T, Koistinen H. Prognostic impact of kallikrein-related peptidase transcript levels in prostate cancer. Int J Cancer 2023. [PMID: 37139608 DOI: 10.1002/ijc.34551] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 03/26/2023] [Accepted: 04/11/2023] [Indexed: 05/05/2023]
Abstract
We aimed to study mRNA levels and prognostic impact of all 15 human kallikrein-related peptidases (KLKs) and their targets, proteinase-activated receptors (PARs), in surgically treated prostate cancer (PCa). Seventy-nine patients with localized grade group 2-4 PCas represented aggressive cases, based on metastatic progression during median follow-up of 11 years. Eighty-six patients with similar baseline characteristics, but no metastasis during follow-up, were assigned as controls. Transcript counts were detected with nCounter technology. KLK12 protein expression was investigated with immunohistochemistry. The effects of KLK12 and KLK15 were studied in LNCaP cells using RNA interference. KLK3, -2, -4, -11, -15, -10 and -12 mRNA, in decreasing order, were expressed over limit of detection (LOD). The expression of KLK2, -3, -4 and -15 was decreased and KLK12 increased in aggressive cancers, compared to controls (P < .05). Low KLK2, -3 and -15 expression was associated with short metastasis-free survival (P < .05) in Kaplan-Meier analysis. PAR1 and -2 were expressed over LOD, and PAR1 expression was higher, and PAR2 lower, in aggressive cases than controls. Together, KLKs and PARs improved classification of metastatic and lethal disease over grade, pathological stage and prostate-specific antigen combined, in random forest analyses. Strong KLK12 immunohistochemical staining was associated with short metastasis-free and PCa-specific survival in Kaplan-Meier analysis (P < .05). Knock-down of KLK15 reduced colony formation of LNCaP cells grown on Matrigel basement membrane preparation. These results support the involvement of several KLKs in PCa progression, highlighting, that they may serve as prognostic PCa biomarkers.
Collapse
Affiliation(s)
- Timo-Pekka K Lehto
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
| | - Ruusu-Maaria Kovanen
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
- Department of Clinical Chemistry and Haematology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Susanna Lintula
- Department of Clinical Chemistry and Haematology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Adrian Malén
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Carolin Stürenberg
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
| | - Andrew Erickson
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
- iCAN-Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Olli-Pekka Pulkka
- Laboratory of Molecular Oncology, Department of Oncology, University of Helsinki, Helsinki, Finland
| | - Ulf-Håkan Stenman
- Department of Clinical Chemistry and Haematology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Eleftherios P Diamandis
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Antti Rannikko
- Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
- iCAN-Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Tuomas Mirtti
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
- iCAN-Digital Precision Cancer Medicine Flagship, Helsinki, Finland
- Department of Biomedical Engineering, School of Medicine, Emory University, Atlanta, Georgia, USA
| | - Hannu Koistinen
- Department of Clinical Chemistry and Haematology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| |
Collapse
|
3
|
Sotiropoulou G, Zingkou E, Pampalakis G. Novel specific activity-based probes validate KLK proteases as druggable targets. Cancer Biol Ther 2022; 23:401-403. [PMID: 35652924 PMCID: PMC9176256 DOI: 10.1080/15384047.2022.2074775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Affiliation(s)
- Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
| | - Eleni Zingkou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
| | - Georgios Pampalakis
- Department of Pharmacology-Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| |
Collapse
|
4
|
Sotiropoulou G, Zingkou E, Bisyris E, Pampalakis G. Activity-Based Probes for Proteases Pave the Way to Theranostic Applications. Pharmaceutics 2022; 14:pharmaceutics14050977. [PMID: 35631563 PMCID: PMC9145445 DOI: 10.3390/pharmaceutics14050977] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/23/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022] Open
Abstract
Proteases are important enzymes in health and disease. Their activities are regulated at multiple levels. In fact, proteases are synthesized as inactive proenzymes (zymogens) that are activated by proteolytic removal of their pro-peptide sequence and can remain active or their activity can be attenuated by complex formation with specific endogenous inhibitors or by limited proteolysis or degradation. Consequently, quite often, only a fraction of the protease molecules is in the active/functional form, thus, the abundance of a protease is not always linearly proportional to the (patho)physiological function(s). Therefore, assays to determine the active forms of proteases are needed, not only in research but also in molecular diagnosis and therapy. Activity-based probes (ABPs) are chemical entities that bind covalently to the active enzyme/protease. ABPs carry a detection tag to enable localization and quantification of specific enzymatic/proteolytic activities with applications in molecular imaging and diagnosis. Moreover, ABPs act as suicide inhibitors of proteases, which can be exploited for delineation of the functional role(s) of a given protease in (patho) biological context and as potential therapeutics. In this sense, ABPs represent new theranostic agents. We outline recent developments pertaining to ABPs for proteases with potential therapeutic applications, with the aim to highlight their importance in theranostics.
Collapse
Affiliation(s)
- Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, 26500 Rion-Patras, Greece; (E.Z.); (E.B.)
- Correspondence: (G.S.); (G.P.)
| | - Eleni Zingkou
- Department of Pharmacy, School of Health Sciences, University of Patras, 26500 Rion-Patras, Greece; (E.Z.); (E.B.)
| | - Evangelos Bisyris
- Department of Pharmacy, School of Health Sciences, University of Patras, 26500 Rion-Patras, Greece; (E.Z.); (E.B.)
| | - Georgios Pampalakis
- Department of Pharmacognosy-Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Correspondence: (G.S.); (G.P.)
| |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Williams D, Mahmoud M, Liu R, Andueza A, Kumar S, Kang DW, Zhang J, Tamargo I, Villa-Roel N, Baek KI, Lee H, An Y, Zhang L, Tate EW, Bagchi P, Pohl J, Mosnier LO, Diamandis EP, Mihara K, Hollenberg MD, Dai Z, Jo H. Stable flow-induced expression of KLK10 inhibits endothelial inflammation and atherosclerosis. eLife 2022; 11:e72579. [PMID: 35014606 PMCID: PMC8806187 DOI: 10.7554/elife.72579] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 01/08/2022] [Indexed: 12/15/2022] Open
Abstract
Atherosclerosis preferentially occurs in arterial regions exposed to disturbed blood flow (d-flow), while regions exposed to stable flow (s-flow) are protected. The proatherogenic and atheroprotective effects of d-flow and s-flow are mediated in part by the global changes in endothelial cell (EC) gene expression, which regulates endothelial dysfunction, inflammation, and atherosclerosis. Previously, we identified kallikrein-related peptidase 10 (Klk10, a secreted serine protease) as a flow-sensitive gene in mouse arterial ECs, but its role in endothelial biology and atherosclerosis was unknown. Here, we show that KLK10 is upregulated under s-flow conditions and downregulated under d-flow conditions using in vivo mouse models and in vitro studies with cultured ECs. Single-cell RNA sequencing (scRNAseq) and scATAC sequencing (scATACseq) study using the partial carotid ligation mouse model showed flow-regulated Klk10 expression at the epigenomic and transcription levels. Functionally, KLK10 protected against d-flow-induced permeability dysfunction and inflammation in human artery ECs, as determined by NFκB activation, expression of vascular cell adhesion molecule 1 and intracellular adhesion molecule 1, and monocyte adhesion. Furthermore, treatment of mice in vivo with rKLK10 decreased arterial endothelial inflammation in d-flow regions. Additionally, rKLK10 injection or ultrasound-mediated transfection of Klk10-expressing plasmids inhibited atherosclerosis in Apoe-/- mice. Moreover, KLK10 expression was significantly reduced in human coronary arteries with advanced atherosclerotic plaques compared to those with less severe plaques. KLK10 is a flow-sensitive endothelial protein that serves as an anti-inflammatory, barrier-protective, and anti-atherogenic factor.
Collapse
Affiliation(s)
- Darian Williams
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
- Molecular and Systems Pharmacology Program, Emory UniversityAtlantaUnited States
| | - Marwa Mahmoud
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | - Renfa Liu
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
- Department of Biomedical Engineering, Peking UniversityBeijingChina
| | - Aitor Andueza
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | - Sandeep Kumar
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | - Dong-Won Kang
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | - Jiahui Zhang
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | - Ian Tamargo
- Molecular and Systems Pharmacology Program, Emory UniversityAtlantaUnited States
| | - Nicolas Villa-Roel
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | - Kyung-In Baek
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
| | | | | | - Leran Zhang
- Department of Chemistry, Imperial College LondonLondonUnited Kingdom
| | - Edward W Tate
- Department of Chemistry, Imperial College LondonLondonUnited Kingdom
| | - Pritha Bagchi
- Emory Integrated Proteomics Core, Emory UniversityAtlantaUnited States
| | - Jan Pohl
- Biotechnology Core Facility Branch, Centers for Disease Control and PreventionAtlantaUnited States
| | - Laurent O Mosnier
- Department of Molecular Medicine, Scripps Research InstituteSan DiegoUnited States
| | | | - Koichiro Mihara
- Department of Physiology and Pharmacology, University of CalgaryCalgaryCanada
| | - Morley D Hollenberg
- Department of Physiology and Pharmacology, University of CalgaryCalgaryCanada
| | - Zhifei Dai
- Department of Biomedical Engineering, Peking UniversityBeijingChina
| | - Hanjoong Jo
- Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of TechnologyAtlantaUnited States
- Molecular and Systems Pharmacology Program, Emory UniversityAtlantaUnited States
- Department of Medicine, Emory UniversityAtlantaUnited States
| |
Collapse
|
7
|
Koistinen H, Künnapuu J, Jeltsch M. KLK3 in the Regulation of Angiogenesis-Tumorigenic or Not? Int J Mol Sci 2021; 22:ijms222413545. [PMID: 34948344 PMCID: PMC8704207 DOI: 10.3390/ijms222413545] [Citation(s) in RCA: 6] [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: 11/22/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 02/07/2023] Open
Abstract
In this focused review, we address the role of the kallikrein-related peptidase 3 (KLK3), also known as prostate-specific antigen (PSA), in the regulation of angiogenesis. Early studies suggest that KLK3 is able to inhibit angiogenic processes, which is most likely dependent on its proteolytic activity. However, more recent evidence suggests that KLK3 may also have an opposite role, mediated by the ability of KLK3 to activate the (lymph)angiogenic vascular endothelial growth factors VEGF-C and VEGF-D, further discussed in the review.
Collapse
Affiliation(s)
- Hannu Koistinen
- Department of Clinical Chemistry, Helsinki University Hospital and University of Helsinki, 00290 Helsinki, Finland
- Correspondence: (H.K.); (M.J.)
| | - Jaana Künnapuu
- Drug Research Program, University of Helsinki, 00014 Helsinki, Finland;
| | - Michael Jeltsch
- Drug Research Program, University of Helsinki, 00014 Helsinki, Finland;
- Individualized Drug Therapy Research Program, University of Helsinki, 00014 Helsinki, Finland
- Wihuri Research Institute, 00290 Helsinki, Finland
- Correspondence: (H.K.); (M.J.)
| |
Collapse
|
8
|
Chang JS, Kim N, Kim JY, Do SI, Cho Y, Kim HS, Kim YB. Kallikrein 5 overexpression is associated with poor prognosis in uterine cervical cancer. J Gynecol Oncol 2021; 31:e78. [PMID: 33078588 PMCID: PMC7593226 DOI: 10.3802/jgo.2020.31.e78] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/01/2020] [Accepted: 06/07/2020] [Indexed: 01/16/2023] Open
Abstract
Objective Kallikrein 5 (KLK5), which is frequently observed in normal cervico-vaginal fluid, is known to be related to prognosis in several solid tumors. We investigated the prognostic significance of KLK5 in uterine cervical cancer using tumor tissue microarray and immunohistochemistry staining. Methods We analyzed samples of 165 patients with uterine cervical cancer who received definitive radiation therapy between 2004 and 2012. We divided patients into two groups stratified by their KLK5 activity by immunohistochemistry staining: negative/weak (0–1+) (n=120 patients) and moderate/strong (2–3+) group (n=45 patients). Patient and tumor characteristics, patterns of failure, and survival outcomes were compared. Univariable and multivariable analyses were performed to identify prognostic factors. Results Patients with KLK5 2–3+ were younger (median: 52 vs. 60 years) and had frequent paraaortic lymph node involvement (40.0% vs. 18.3%) than those with KLK5 0–1+. With a median follow-up of 60.8 (interquartile range, 47.5–77.9) months, patients with KLK5 2–3+ had inferior 5-year locoregional recurrence-free survival and distant metastasis-free survival of 61.7% (vs. 77.5% in KLK5 0–1+ group) and 59.4% (vs. 72.8% in the KLK5 0–1+ group), respectively (all p<0.05). KLK5 2–3+ expression retained its significance after adjusting for other well-known prognostic factors of tumor size and stage in multivariable analysis. Conclusions KLK5 overexpression is associated with the aggressiveness of cervical cancer and may underlie the diminished response to conventional treatments. Therefore, KLK5 could be a reliable prognostic factor in cervical cancer.
Collapse
Affiliation(s)
- Jee Suk Chang
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Nalee Kim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Ye Kim
- Department of Pathology, Ilsan Paik Hospital, Inje University, Goyang, Korea
| | - Sung Im Do
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yeona Cho
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun Soo Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Yong Bae Kim
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
| |
Collapse
|
9
|
Li M, Srp J, Mareš M, Wlodawer A, Gustchina A. Structural studies of complexes of kallikrein 4 with wild-type and mutated forms of the Kunitz-type inhibitor BbKI. Acta Crystallogr D Struct Biol 2021; 77:1084-1098. [PMID: 34342281 PMCID: PMC8329858 DOI: 10.1107/s2059798321006483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/21/2021] [Indexed: 11/10/2022] Open
Abstract
Structures of BbKI, a recombinant Kunitz-type serine protease inhibitor from Bauhinia bauhinioides, complexed with human kallikrein 4 (KLK4) were determined at medium-to-high resolution in four crystal forms (space groups P3121, P6522, P21 and P61). Although the fold of the protein was virtually identical in all of the crystals, some significant differences were observed in the conformation of Arg64 of BbKI, the residue that occupies the S1 pocket in KLK4. Whereas this residue exhibited two orientations in the highest resolution structure (P3121), making either a canonical trypsin-like interaction with Asp189 of KLK4 or an alternate interaction, only a single alternate orientation was observed in the other three structures. A neighboring disulfide, Cys191-Cys220, was partially or fully broken in all KLK4 structures. Four variants of BbKI in which Arg64 was replaced by Met, Phe, Ala and Asp were expressed and crystallized, and their structures were determined in complex with KLK4. Structures of the Phe and Met variants complexed with bovine trypsin and of the Phe variant complexed with α-chymotrypsin were also determined. Although the inhibitory potency of these variant forms of BbKI was lowered by up to four orders of magnitude, only small changes were seen in the vicinity of the mutated residues. Therefore, a totality of subtle differences in KLK4-BbKI interactions within the fully extended interface in the structures of these variants might be responsible for the observed effect. Screening of the BbKI variants against a panel of serine proteases revealed an altered pattern of inhibitory specificity, which was shifted towards that of chymotrypsin-like proteases for the hydrophobic Phe and Met P1 substitutions. This work reports the first structures of plant Kunitz inhibitors with S1-family serine proteases other than trypsin, as well as new insights into the specificity of inhibition of medically relevant kallikreins.
Collapse
Affiliation(s)
- Mi Li
- Center for Structural Biology, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
- Basic Science Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Jaroslav Srp
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Michael Mareš
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Alexander Wlodawer
- Center for Structural Biology, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Alla Gustchina
- Center for Structural Biology, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| |
Collapse
|
10
|
Vizovisek M, Ristanovic D, Menghini S, Christiansen MG, Schuerle S. The Tumor Proteolytic Landscape: A Challenging Frontier in Cancer Diagnosis and Therapy. Int J Mol Sci 2021; 22:ijms22052514. [PMID: 33802262 PMCID: PMC7958950 DOI: 10.3390/ijms22052514] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
In recent decades, dysregulation of proteases and atypical proteolysis have become increasingly recognized as important hallmarks of cancer, driving community-wide efforts to explore the proteolytic landscape of oncologic disease. With more than 100 proteases currently associated with different aspects of cancer development and progression, there is a clear impetus to harness their potential in the context of oncology. Advances in the protease field have yielded technologies enabling sensitive protease detection in various settings, paving the way towards diagnostic profiling of disease-related protease activity patterns. Methods including activity-based probes and substrates, antibodies, and various nanosystems that generate reporter signals, i.e., for PET or MRI, after interaction with the target protease have shown potential for clinical translation. Nevertheless, these technologies are costly, not easily multiplexed, and require advanced imaging technologies. While the current clinical applications of protease-responsive technologies in oncologic settings are still limited, emerging technologies and protease sensors are poised to enable comprehensive exploration of the tumor proteolytic landscape as a diagnostic and therapeutic frontier. This review aims to give an overview of the most relevant classes of proteases as indicators for tumor diagnosis, current approaches to detect and monitor their activity in vivo, and associated therapeutic applications.
Collapse
|
11
|
Wainwright SM, Hopkins BR, Mendes CC, Sekar A, Kroeger B, Hellberg JEEU, Fan SJ, Pavey A, Marie PP, Leiblich A, Sepil I, Charles PD, Thézénas ML, Fischer R, Kessler BM, Gandy C, Corrigan L, Patel R, Wigby S, Morris JF, Goberdhan DCI, Wilson C. Drosophila Sex Peptide controls the assembly of lipid microcarriers in seminal fluid. Proc Natl Acad Sci U S A 2021; 118:e2019622118. [PMID: 33495334 PMCID: PMC7865141 DOI: 10.1073/pnas.2019622118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Seminal fluid plays an essential role in promoting male reproductive success and modulating female physiology and behavior. In the fruit fly, Drosophila melanogaster, Sex Peptide (SP) is the best-characterized protein mediator of these effects. It is secreted from the paired male accessory glands (AGs), which, like the mammalian prostate and seminal vesicles, generate most of the seminal fluid contents. After mating, SP binds to spermatozoa and is retained in the female sperm storage organs. It is gradually released by proteolytic cleavage and induces several long-term postmating responses, including increased ovulation, elevated feeding, and reduced receptivity to remating, primarily signaling through the SP receptor (SPR). Here, we demonstrate a previously unsuspected SPR-independent function for SP. We show that, in the AG lumen, SP and secreted proteins with membrane-binding anchors are carried on abundant, large neutral lipid-containing microcarriers, also found in other SP-expressing Drosophila species. These microcarriers are transferred to females during mating where they rapidly disassemble. Remarkably, SP is a key microcarrier assembly and disassembly factor. Its absence leads to major changes in the seminal proteome transferred to females upon mating. Males expressing nonfunctional SP mutant proteins that affect SP's binding to and release from sperm in females also do not produce normal microcarriers, suggesting that this male-specific defect contributes to the resulting widespread abnormalities in ejaculate function. Our data therefore reveal a role for SP in formation of seminal macromolecular assemblies, which may explain the presence of SP in Drosophila species that lack the signaling functions seen in Dmelanogaster.
Collapse
Affiliation(s)
- S Mark Wainwright
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Ben R Hopkins
- Department of Zoology, University of Oxford, OX1 3PS Oxford, United Kingdom
- Department of Evolution and Ecology, University of California, Davis, CA 95616
| | - Cláudia C Mendes
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Aashika Sekar
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Benjamin Kroeger
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Josephine E E U Hellberg
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Shih-Jung Fan
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Abigail Pavey
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Pauline P Marie
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Aaron Leiblich
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Irem Sepil
- Department of Zoology, University of Oxford, OX1 3PS Oxford, United Kingdom
| | - Philip D Charles
- Target Discovery Institute Mass Spectrometry Laboratory, Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, OX3 7BN Oxford, United Kingdom
| | - Marie L Thézénas
- Target Discovery Institute Mass Spectrometry Laboratory, Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, OX3 7BN Oxford, United Kingdom
| | - Roman Fischer
- Target Discovery Institute Mass Spectrometry Laboratory, Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, OX3 7BN Oxford, United Kingdom
| | - Benedikt M Kessler
- Target Discovery Institute Mass Spectrometry Laboratory, Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, OX3 7BN Oxford, United Kingdom
| | - Carina Gandy
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Laura Corrigan
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Rachel Patel
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Stuart Wigby
- Department of Zoology, University of Oxford, OX1 3PS Oxford, United Kingdom
- Applied Zoology, Faculty of Biology, Technische Universität Dresden, Dresden D-01069, Germany
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, L69 7ZB Liverpool, United Kingdom
| | - John F Morris
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Deborah C I Goberdhan
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom
| | - Clive Wilson
- Department of Physiology, Anatomy and Genetics, University of Oxford, OX1 3QX Oxford, United Kingdom;
| |
Collapse
|
12
|
Mella C, Figueroa CD, Otth C, Ehrenfeld P. Involvement of Kallikrein-Related Peptidases in Nervous System Disorders. Front Cell Neurosci 2020; 14:166. [PMID: 32655372 PMCID: PMC7324807 DOI: 10.3389/fncel.2020.00166] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
Kallikrein-related peptidases (KLKs) are a family of serine proteases that when dysregulated may contribute to neuroinflammation and neurodegeneration. In the present review article, we describe what is known about their physiological and pathological roles with an emphasis on KLK6 and KLK8, two KLKs that are highly expressed in the adult central nervous system (CNS). Altered expression and activity of KLK6 have been linked to brain physiology and the development of multiple sclerosis. On the other hand, altered levels of KLK6 in the brain and serum of people affected by Alzheimer's disease and Parkinson's disease have been documented, pointing out to its function in amyloid metabolism and development of synucleinopathies. People who have structural genetic variants of KLK8 can suffer mental illnesses such as intellectual and learning disabilities, seizures, and autism. Increased expression of KLK8 has also been implicated in schizophrenia, bipolar disorder, and depression. Also, we discuss the possible link that exists between KLKs activity and certain viral infections that can affect the nervous system. Although little is known about the exact mechanisms that mediate KLKs function and their participation in neuroinflammatory and neurodegenerative disorders will open a new field to develop novel therapies to modulate their levels and/or activity and their harmful effects on the CNS.
Collapse
Affiliation(s)
- Cinthia Mella
- Faculty of Medicine, Institute of Clinical Microbiology, Universidad Austral de Chile, Valdivia, Chile
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology, and Pathology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Carlos D. Figueroa
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology, and Pathology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Carola Otth
- Faculty of Medicine, Institute of Clinical Microbiology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Pamela Ehrenfeld
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology, and Pathology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| |
Collapse
|
13
|
Solun B, Shoenfeld Y. Inhibition of metalloproteinases in therapy for severe lung injury due to COVID-19. MEDICINE IN DRUG DISCOVERY 2020; 7:100052. [PMID: 32537610 PMCID: PMC7273161 DOI: 10.1016/j.medidd.2020.100052] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 01/08/2023] Open
Abstract
Since its first appearance in December 2019 in the Chinese province of Wuhan, COVID-19 has spread rapidly throughout the world and poses a serious threat to public health. Acute respiratory failure due to widespread lung inflammation progress to acute respiratory distress syndrome (ARDS) with an altered pulmonary and alveolar function that can lead to disability, prolong hospitalizations, and adverse outcomes. While there is no specific treatment for severe acute lung injury (ALI) and ARDS due to the COVID-19 and the management is mostly supportive, it is very important to better understand the pathophysiological processes activated by the inflammatory mediators such as cytokines and metalloproteinases with the aim of their subsequent inhibition in the course of the complex treatment. Herein, we will discuss the pathophysiological mechanisms of ALI/ARDS, with a focus on the pivotal role played by matrix metalloproteinases (MMP) and the kinin-kallikrein system (KKS), and the effects of the possible pharmacological interventions. Aprotinin is a nonspecific protease inhibitor especially of trypsin, chymotrypsin, plasmin, and kallikrein, and it is many years in clinical use. Aprotinin inhibits the release of pro-inflammatory cytokines and involved in the process of glycoprotein homeostasis. Experimental data support that the use of aprotinin to inhibit MMPs and KKS may be a new potential approach to the treatment of ALI / ARDS.
Collapse
Affiliation(s)
- B Solun
- Department of Internal Medicine D, Hasharon Hospital, Rabin Medical Center, Petah Tikva, affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Y Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, affiliated to Tel-Aviv University, Israel Laboratory of the Mosaics of Autoimmunity, Sechenov First Moscow State Medical University of the Ministry of Health of, the Russian Federation
| |
Collapse
|
14
|
Fu L, Chen Y, Xu CM, Wu T, Guo HM, Lin ZH, Wang R, Shu M. 3D-QSAR, HQSAR, molecular docking, and new compound design study of 1,3,6-trisubstituted 1,4-diazepan-7-ones as human KLK7 inhibitors. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02542-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
15
|
Moradi A, Srinivasan S, Clements J, Batra J. Beyond the biomarker role: prostate-specific antigen (PSA) in the prostate cancer microenvironment. Cancer Metastasis Rev 2020; 38:333-346. [PMID: 31659564 DOI: 10.1007/s10555-019-09815-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The prostate-specific antigen (PSA) blood test is the accepted biomarker of tumor recurrence. PSA levels in serum correlate with disease progression, though its diagnostic accuracy is questionable. As a result, significant progress has been made in developing modified PSA tests such as PSA velocity, PSA density, 4Kscore, PSA glycoprofiling, Prostate Health Index, and the STHLM3 test. PSA, a serine protease, is secreted from the epithelial cells of the prostate. PSA has been suggested as a molecular target for prostate cancer therapy due to the fact that it is not only active in prostate tissue but also has a pivotal role on prostate cancer signaling pathways including proliferation, invasion, metastasis, angiogenesis, apoptosis, immune response, and tumor microenvironment regulation. Here, we summarize the current standing of PSA in prostate cancer progression as well as its utility in prostate cancer therapeutic approaches with an emphasis on the role of PSA in the tumor microenvironment.
Collapse
Affiliation(s)
- Afshin Moradi
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Srilakshmi Srinivasan
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Judith Clements
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Jyotsna Batra
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia. .,Translational Research Institute, Queensland University of Technology, Brisbane, Australia.
| |
Collapse
|
16
|
Gong W, Liu Y, Preis S, Geng X, Petit-Courty A, Kiechle M, Muckenhuber A, Dreyer T, Dorn J, Courty Y, Magdolen V. Prognostic value of kallikrein-related peptidase 12 (KLK12) mRNA expression in triple-negative breast cancer patients. Mol Med 2020; 26:19. [PMID: 32028882 PMCID: PMC7006133 DOI: 10.1186/s10020-020-0145-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 01/28/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The serine protease KLK12 belongs to the human fifteen-member family of kallikrein-related peptidases. Differential expression accompanied by either increased or decreased enzymatic activity has been linked to several diseases including cancer. Triple-negative breast cancer (TNBC) represents a very aggressive subgroup of breast cancer with high tumor recurrence rates and poor patient prognosis. Here, we quantified the KLK12 mRNA expression levels in tumor tissue of TNBC patients and analyzed their prognostic value. METHODS In the present study, KLK12 mRNA expression in tumor tissue of TNBC patients (n = 116) was determined by quantitative real-time PCR assay. The association of KLK12 mRNA levels with clinical parameters, and patients' outcome was analyzed using Chi-square tests, Cox regression models and Kaplan-Meier survival analysis. RESULTS Positive, but low KLK12 mRNA levels were detected in about half of the cases (54 out of 116; 47%), the other samples were negative for KLK12 mRNA expression. No significant association was observed between KLK12 mRNA levels and clinicopathological variables (age, lymph node status, tumor size, and histological grade). In univariate Cox analyses, positive KLK12 mRNA expression was significantly associated with shortened disease-free survival (DFS; hazard ratio [HR] = 2.12, 95% CI = 1.19-3.78, p = 0.010) as well as overall survival (OS; HR = 1.91, 95% CI = 1.04-3.50, p = 0.037). In multivariable Cox analysis, including all clinical parameters plus KLK12 mRNA, the latter - together with age - remained an independent unfavorable predictive marker for DFS (HR = 2.33, 95% CI = 1.28-4.24, p = 0.006) and showed a trend towards significance in case of OS (HR = 1.80, 95% CI = 0.96-3.38, p = 0.066). CONCLUSIONS Positive KLK12 expression is remarkably associated with shortened DFS and OS, suggesting that KLK12 plays a tumor-supporting role in TNBC.
Collapse
Affiliation(s)
- Weiwei Gong
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany
| | - Yueyang Liu
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany.,Department of Gynecology, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, People's Republic of China
| | - Sarah Preis
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany
| | - Xiaocong Geng
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany
| | - Agnes Petit-Courty
- INSERM, U1100 - Centre d'Etude des Pathologies Respiratoires, Tours, France
| | - Marion Kiechle
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany
| | | | - Tobias Dreyer
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany
| | - Julia Dorn
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany
| | - Yves Courty
- INSERM, U1100 - Centre d'Etude des Pathologies Respiratoires, Tours, France
| | - Viktor Magdolen
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, 81576, Munich, Germany.
| |
Collapse
|
17
|
Li M, Srp J, Gustchina A, Dauter Z, Mares M, Wlodawer A. Crystal structures of the complex of a kallikrein inhibitor from Bauhinia bauhinioides with trypsin and modeling of kallikrein complexes. Acta Crystallogr D Struct Biol 2019; 75:56-69. [PMID: 30644845 PMCID: PMC6333282 DOI: 10.1107/s2059798318016492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/19/2018] [Indexed: 11/11/2022] Open
Abstract
Structures of a recombinant Kunitz-type serine protease inhibitor from Bauhinia bauhinioides (BbKI) complexed with bovine trypsin were determined in two crystal forms. The crystal structure with the L55R mutant of BbKI was determined in space group P64 at 1.94 Å resolution and that with native BbKI in the monoclinic space group P21 at 3.95 Å resolution. The asymmetric unit of the latter crystals contained 44 independent complexes, thus representing one of the largest numbers of independent objects deposited in the Protein Data Bank. Additionally, the structure of the complex with native BbKI was determined at 2.0 Å resolution from P64 crystals isomorphous to those of the mutant. Since BbKI has previously been found to be a potent inhibitor of the trypsin-like plasma kallikrein, it was also tested against several tissue kallikreins. It was found that BbKI is a potent inhibitor of human tissue kallikrein 4 (KLK4) and the chymotrypsin-like human tissue kallikrein 7 (KLK7). Structures of BbKI complexed with the catalytic domain of human plasma kallikrein were modeled, as well as those with KLK4 and KLK7, and the structures were analyzed in order to identify the interactions that are responsible for inhibitory potency.
Collapse
Affiliation(s)
- Mi Li
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
- Basic Science Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Jaroslav Srp
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University, 128 40 Prague, Czech Republic
| | - Alla Gustchina
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Zbigniew Dauter
- Synchrotron Radiation Research Section, Macromolecular Crystallography Laboratory, NCI, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Michael Mares
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Alexander Wlodawer
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| |
Collapse
|
18
|
Ge K, Huang J, Wang W, Gu M, Dai X, Xu Y, Wu H, Li G, Lu H, Zhong J, Huang Q. Serine protease inhibitor kazal-type 6 inhibits tumorigenesis of human hepatocellular carcinoma cells via its extracellular action. Oncotarget 2018; 8:5965-5975. [PMID: 27999203 PMCID: PMC5351605 DOI: 10.18632/oncotarget.13983] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 12/12/2016] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) causes significant medical burdens worldwide. Diagnosis, especially in the early stages, is still challenging. Therapeutic options are limited and often ineffective. Although several risk factors have been known important for development of HCC, the molecular basis of the process is rather complex and has not been fully understood. We have found that a subpopulation of HCC cells which are resistant to oncolytic parvovirus H1 superinfection highly express serine protease inhibitor Kazal-type 6 (SPINK6). This protein is specifically reduced in all HCC cell lines and tissues we analyzed. When upregulated, SPINK6 could suppress the malignant phenotypes of the HCC cells in several in vitro models. The putative tumor suppression role of SPINK6 is, however, independent of its protease inhibitory activity. To suppress the malignancy of HCC cells, SPINK6 has to be secreted to trigger signals which regulate an intracellular signaling molecule, ERK1/2, as well as a series of downstream factors involved in cell cycle progression, apoptosis and migration. Our study supports that SPINK6 is an important tumor suppressor in liver, and further investigations may help develop more effective diagnostic and therapeutic approaches.
Collapse
Affiliation(s)
- Kuikui Ge
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Jinjiang Huang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Wei Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Meigang Gu
- Laboratory of Virology and Infectious Disease Center for the Study of Hepatitis C, Rockefeller University, New York, NY 10065, USA
| | - Xinchuan Dai
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Yuqiang Xu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Hongyu Wu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China.,Shanghai High-Tech United Bio-Technological R&D Co., Ltd, Shanghai 201206, China
| | - Guodong Li
- Shanghai High-Tech United Bio-Technological R&D Co., Ltd, Shanghai 201206, China
| | - Hairong Lu
- Shanghai High-Tech United Bio-Technological R&D Co., Ltd, Shanghai 201206, China
| | - Jiang Zhong
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Qingshan Huang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| |
Collapse
|
19
|
Ahmed N, Dorn J, Napieralski R, Drecoll E, Kotzsch M, Goettig P, Zein E, Avril S, Kiechle M, Diamandis EP, Schmitt M, Magdolen V. Clinical relevance of kallikrein-related peptidase 6 (KLK6) and 8 (KLK8) mRNA expression in advanced serous ovarian cancer. Biol Chem 2017; 397:1265-1276. [PMID: 27483364 DOI: 10.1515/hsz-2016-0177] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 07/29/2016] [Indexed: 02/06/2023]
Abstract
Most members of the kallikrein-related peptidase family have been demonstrated to be dysregulated in ovarian cancer and modulate tumor growth, migration, invasion, and resistance to chemotherapy. In the present study, we assessed the mRNA expression levels of KLK6 and KLK8 by quantitative PCR in 100 patients with advanced serous ovarian cancer FIGO stage III/IV. A pronounced correlation between KLK6 and KLK8 mRNA expression (rs = 0.636, p < 0.001) was observed, indicating coordinate expression of both peptidases. No significant associations of clinical parameters with KLK6, KLK8, and a combined score KLK6+KLK8 were found. In univariate Cox regression analysis, elevated mRNA levels of KLK6 were significantly linked with shortened overall survival (OS) (hazard ratio [HR] = 2.07, p = 0.007). While KLK8 values were not associated with patients' outcome, high KLK6+KLK8 values were significantly associated with shorter progression-free survival (HR = 1.82, p = 0.047) and showed a trend towards significance in the case of OS (HR = 1.82, p = 0.053). Strikingly, in multivariable analysis, elevated KLK6 mRNA values, apart from residual tumor mass, remained an independent predictive marker for poor OS (HR = 2.33, p = 0.005). As KLK6 mRNA and protein levels correlate, KLK6 may represent an attractive therapeutic target for potent and specific inhibitors of its enzymatic activity.
Collapse
|
20
|
Rubenstein AB, Pethe MA, Khare SD. MFPred: Rapid and accurate prediction of protein-peptide recognition multispecificity using self-consistent mean field theory. PLoS Comput Biol 2017; 13:e1005614. [PMID: 28650961 PMCID: PMC5507473 DOI: 10.1371/journal.pcbi.1005614] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 07/11/2017] [Accepted: 06/02/2017] [Indexed: 11/24/2022] Open
Abstract
Multispecificity-the ability of a single receptor protein molecule to interact with multiple substrates-is a hallmark of molecular recognition at protein-protein and protein-peptide interfaces, including enzyme-substrate complexes. The ability to perform structure-based prediction of multispecificity would aid in the identification of novel enzyme substrates, protein interaction partners, and enable design of novel enzymes targeted towards alternative substrates. The relatively slow speed of current biophysical, structure-based methods limits their use for prediction and, especially, design of multispecificity. Here, we develop a rapid, flexible-backbone self-consistent mean field theory-based technique, MFPred, for multispecificity modeling at protein-peptide interfaces. We benchmark our method by predicting experimentally determined peptide specificity profiles for a range of receptors: protease and kinase enzymes, and protein recognition modules including SH2, SH3, MHC Class I and PDZ domains. We observe robust recapitulation of known specificities for all receptor-peptide complexes, and comparison with other methods shows that MFPred results in equivalent or better prediction accuracy with a ~10-1000-fold decrease in computational expense. We find that modeling bound peptide backbone flexibility is key to the observed accuracy of the method. We used MFPred for predicting with high accuracy the impact of receptor-side mutations on experimentally determined multispecificity of a protease enzyme. Our approach should enable the design of a wide range of altered receptor proteins with programmed multispecificities.
Collapse
Affiliation(s)
- Aliza B. Rubenstein
- Computational Biology & Molecular Biophysics Program, Rutgers, The State University of New Jersey, Piscataway, NJ
- Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ
| | - Manasi A. Pethe
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ
- Center for Integrative Proteomics Research, Rutgers, The State University of New Jersey, Piscataway, NJ
| | - Sagar D. Khare
- Computational Biology & Molecular Biophysics Program, Rutgers, The State University of New Jersey, Piscataway, NJ
- Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ
- Center for Integrative Proteomics Research, Rutgers, The State University of New Jersey, Piscataway, NJ
| |
Collapse
|
21
|
Tokas T, Avgeris M, Alamanis C, Scorilas A, Stravodimos KG, Constantinides CA. Downregulated KLK13 expression in bladder cancer highlights tumor aggressiveness and unfavorable patients' prognosis. J Cancer Res Clin Oncol 2016; 143:521-532. [PMID: 27858162 DOI: 10.1007/s00432-016-2301-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 11/05/2016] [Indexed: 12/11/2022]
Abstract
PURPOSE Despite recent research advantages on the molecular and subcellular background, bladder cancer (BlCa) remains a clinically neglected malignancy. This is strongly reflected by the generic approach of disease diagnosis and management. Additionally, patients' prognosis became a rather demanding task due to the great disease heterogeneity. Here, we aimed to evaluate, for the first time, the clinical value of KLK13 in BlCa. METHODS A total of 279 bladder specimens (137 tumors, 107 adjacent normal tissues and 35 healthy samples) were included. Total RNA was extracted, reverse transcribed, and KLK13 expression was assessed by quantitative real-time PCR. RESULTS KLK13 expression is significantly increased in bladder tumors compared to normal adjacent epithelium. However, reduced KLK13 expression is correlated with disease aggressiveness, including higher tumor stage and grade, and high-risk TaT1 tumors according to the EORTC stratification. Moreover, Kaplan-Meier and Cox regression analysis highlighted the prognostic value of the reduced KLK13 expression for the prediction of TaT1 patients' recurrence and shorter disease-free survival following TURBT. Finally, the combination of KLK13 expression with EORTC-risk stratification results to an improved prediction of TaT1 patients' outcome. CONCLUSION This first clinical study of KLK13 in BlCa reveals its deregulated expression in bladder tumors and highlights KLK13 as a promising marker for improving TaT1 patients' prognosis following treatment.
Collapse
Affiliation(s)
- Theodoros Tokas
- First Department of Urology, "Laiko" General Hospital, Medical School, University of Athens, Agiou Thoma 17, 11527, Athens, Greece. .,Department of Urology and Andrology, General Hospital Hall in Tirol, Milser Str. 10, 6060, Hall in Tirol, Austria.
| | - Margaritis Avgeris
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Christos Alamanis
- First Department of Urology, "Laiko" General Hospital, Medical School, University of Athens, Agiou Thoma 17, 11527, Athens, Greece
| | - Andreas Scorilas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Konstantinos G Stravodimos
- First Department of Urology, "Laiko" General Hospital, Medical School, University of Athens, Agiou Thoma 17, 11527, Athens, Greece
| | - Constantinos A Constantinides
- First Department of Urology, "Laiko" General Hospital, Medical School, University of Athens, Agiou Thoma 17, 11527, Athens, Greece
| |
Collapse
|
22
|
Wilson C, Leiblich A, Goberdhan DCI, Hamdy F. The Drosophila Accessory Gland as a Model for Prostate Cancer and Other Pathologies. Curr Top Dev Biol 2016; 121:339-375. [PMID: 28057306 PMCID: PMC5224695 DOI: 10.1016/bs.ctdb.2016.06.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The human prostate is a gland of the male reproductive tract, which together with the seminal vesicles, is responsible for most seminal fluid production. It is a common site of cancer, and unlike other glands, it typically enlarges in aging men. In flies, the male accessory glands make many major seminal fluid components. Like their human equivalents, they secrete proteins from several conserved families, including proteases, lectins, and cysteine-rich secretory proteins, some of which interact with sperm and affect fertility. A key protein, sex peptide, is not conserved in vertebrates but plays a central role in mediating long-term effects on females after mating. Although postmitotic, one epithelial cell type in the accessory glands, the secondary cell, continues to grow in adults. It secretes microvesicles called exosomes from the endosomal multivesicular body, which, after mating, fuse with sperm. They also appear to affect female postmating behavior. Remarkably, the human prostate epithelium also secretes exosomes, which fuse to sperm in vitro to modulate their activity. Exosomes from prostate and other cancer cells are increasingly proposed to play fundamental roles in modulating the tumor microenvironment and in metastasis. Here we review a diverse accessory gland literature, which highlights functional analogies between the male reproductive glands of flies and humans, and a critical role for extracellular vesicles in allowing seminal fluid to promote male interests within the female. We postulate that secondary cells and prostate epithelial cells use common mechanisms to control growth, secretion, and signaling, which are relevant to prostate and other cancers, and can be genetically dissected in the uniquely tractable fly model.
Collapse
Affiliation(s)
- C Wilson
- University of Oxford, Oxford, United Kingdom.
| | - A Leiblich
- University of Oxford, Oxford, United Kingdom; University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | | | - F Hamdy
- University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| |
Collapse
|
23
|
Avgeris M, Scorilas A. Kallikrein-related peptidases (KLKs) as emerging therapeutic targets: focus on prostate cancer and skin pathologies. Expert Opin Ther Targets 2016; 20:801-18. [PMID: 26941073 DOI: 10.1517/14728222.2016.1147560] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Tissue kallikrein and the kallikrein-related peptidases (KLKs) constitute a family of 15 homologous secreted serine proteases with trypsin- or chymotrypsin-like activities, which participate in a broad spectrum of physiological procedures. Deregulated expression and/or activation of the majority of the family members have been reported in several human diseases, thereby making KLKs ideal targets for therapeutic intervention. AREAS COVERED In the present review, we summarize the role of KLKs in normal human physiology and pathology, focusing on prostate cancer and skin diseases. Furthermore, we discuss the recent advances in the development of KLK-based therapies. A great number of diverse engineered KLKs inhibitors with improved potency, selectivity and immunogenicity have been synthesized by redesigning examples that are endogenous and naturally occurring. Moreover, encouraging results have been documented using KLKs-based vaccines and immunotherapies, as well as KLKs-mediated activation of pro-drugs. Finally, KLKs-targeting aptamers and KLKs-based imaging tools represent novel approaches towards the exploitation of KLKs' therapeutic value. EXPERT OPINION The central/critical roles of KLK family in several human pathologies highlight KLKs as attractive molecular targets for developing novel therapeutics.
Collapse
Affiliation(s)
- Margaritis Avgeris
- a Department of Biochemistry and Molecular Biology, Faculty of Biology , University of Athens , Athens , Greece
| | - Andreas Scorilas
- a Department of Biochemistry and Molecular Biology, Faculty of Biology , University of Athens , Athens , Greece
| |
Collapse
|
24
|
Kallikrein-related peptidase 8 is expressed in myocardium and induces cardiac hypertrophy. Sci Rep 2016; 7:20024. [PMID: 26823023 PMCID: PMC4731818 DOI: 10.1038/srep20024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 12/22/2015] [Indexed: 12/13/2022] Open
Abstract
The tissue kallikrein-related peptidase family (KLK) is a group of trypsin- and chymotrypsin-like serine proteases that share a similar homology to parent tissue kallikrein (KLK1). KLK1 is identified in heart and has anti-hypertrophic effects. However, whether other KLK family members play a role in regulating cardiac function remains unknown. In the present study, we demonstrated for the first time that KLK8 was expressed in myocardium. KLK8 expression was upregulated in left ventricle of cardiac hypertrophy models. Both intra-cardiac adenovirus-mediated and transgenic-mediated KLK8 overexpression led to cardiac hypertrophy in vivo. In primary neonatal rat cardiomyocytes, KLK8 knockdown inhibited phenylephrine (PE)-induced cardiomyocyte hypertrophy, whereas KLK8 overexpression promoted cardiomyocyte hypertrophy via a serine protease activity-dependent but kinin receptor-independent pathway. KLK8 overexpression increased epidermal growth factor (EGF) production, which was blocked by the inhibitors of serine protease. EGF receptor (EGFR) antagonist and EGFR knockdown reversed the hypertrophy induced by KLK8 overexpression. KLK8-induced cardiomyocyte hypertrophy was also significantly decreased by blocking the protease-activated receptor 1 (PAR1) or PAR2 pathway. Our data suggest that KLK8 may promote cardiomyocyte hypertrophy through EGF signaling- and PARs-dependent but a kinin receptor-independent pathway. It is implied that different KLK family members can subtly regulate cardiac function and remodeling.
Collapse
|
25
|
Kallikreins - The melting pot of activity and function. Biochimie 2015; 122:270-82. [PMID: 26408415 DOI: 10.1016/j.biochi.2015.09.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 09/21/2015] [Indexed: 12/20/2022]
Abstract
The human tissue kallikrein and kallikrein-related peptidases (KLKs), encoded by the largest contiguous cluster of protease genes in the human genome, are secreted serine proteases with diverse expression patterns and physiological roles. Because of the broad spectrum of processes that are modulated by kallikreins, these proteases are the subject of extensive investigations. This review brings together basic information about the biochemical properties affecting enzymatic activity, with highlights on post-translational modifications, especially glycosylation. Additionally, we present the current state of knowledge regarding the physiological functions of KLKs in major human organs and outline recent discoveries pertinent to the involvement of kallikreins in cell signaling and in viral infections. Despite the current depth of knowledge of these enzymes, many questions regarding the roles of kallikreins in health and disease remain unanswered.
Collapse
|
26
|
Zhou D, Hansen D, Shabalin IG, Gustchina A, Vieira DF, de Brito MV, Araújo APU, Oliva MLV, Wlodawer A. Structure of BbKI, a disulfide-free plasma kallikrein inhibitor. Acta Crystallogr F Struct Biol Commun 2015; 71:1055-62. [PMID: 26249699 PMCID: PMC4528941 DOI: 10.1107/s2053230x15011127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/08/2015] [Indexed: 12/19/2022] Open
Abstract
A serine protease inhibitor from Bauhinia bauhinioides (BbKI) belongs to the Kunitz family of plant inhibitors, which are common in plant seeds. BbKI does not contain any disulfides, unlike most other members of this family. It is a potent inhibitor of plasma kallikrein, in addition to other serine proteases, and thus exhibits antithrombotic activity. A high-resolution crystal structure of recombinantly expressed BbKI was determined (at 1.4 Å resolution) and was compared with the structures of other members of the family. Modeling of a complex of BbKI with plasma kallikrein indicates that changes in the local structure of the reactive loop that includes the specificity-determining Arg64 are necessary in order to explain the tight binding. An R64A mutant of BbKI was found to be a weaker inhibitor of plasma kallikrein, but was much more potent against plasmin, suggesting that this mutant may be useful for preventing the breakup of fibrin and maintaining clot stability, thus preventing excessive bleeding.
Collapse
Affiliation(s)
- Dongwen Zhou
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Daiane Hansen
- Universidade Federal de São Paulo–Escola Paulista de Medicina, Rua Três de Maio 100, 04044-020 São Paulo-SP, Brazil
| | - Ivan G. Shabalin
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA
| | - Alla Gustchina
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Debora F. Vieira
- Institute of Physics of São Carlos, University of São Paulo, Avenida Trabalhador Sãocarlense 400, 13560-970 São Carlos-SP, Brazil
| | - Marlon V. de Brito
- Institute of Physics of São Carlos, University of São Paulo, Avenida Trabalhador Sãocarlense 400, 13560-970 São Carlos-SP, Brazil
| | - Ana Paula U. Araújo
- Institute of Physics of São Carlos, University of São Paulo, Avenida Trabalhador Sãocarlense 400, 13560-970 São Carlos-SP, Brazil
| | - Maria Luiza V. Oliva
- Universidade Federal de São Paulo–Escola Paulista de Medicina, Rua Três de Maio 100, 04044-020 São Paulo-SP, Brazil
| | - Alexander Wlodawer
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| |
Collapse
|
27
|
Kanaoka R, Kushiyama A, Seno Y, Nakatsu Y, Matsunaga Y, Fukushima T, Tsuchiya Y, Sakoda H, Fujishiro M, Yamamotoya T, Kamata H, Matsubara A, Asano T. Pin1 Inhibitor Juglone Exerts Anti-Oncogenic Effects on LNCaP and DU145 Cells despite the Patterns of Gene Regulation by Pin1 Differing between These Cell Lines. PLoS One 2015; 10:e0127467. [PMID: 26039047 PMCID: PMC4454534 DOI: 10.1371/journal.pone.0127467] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 04/15/2015] [Indexed: 02/07/2023] Open
Abstract
Background Prostate cancer initially develops in an androgen-dependent manner but, during its progression, transitions to being androgen-independent in the advanced stage. Pin1, one of the peptidyl-prolyl cis/trans isomerases, is reportedly overexpressed in prostate cancers and is considered to contribute to accelerated cell growth, which may be one of the major factors contributing to their androgen-independent growth. Thus, we investigated how Pin1 modulates the gene expressions in both androgen-dependent and androgen-independent prostate cancer cell lines using microarray analysis. In addition, the effects of Juglone, a commercially available Pin1 inhibitor were also examined. Methods Two prostate cancer cell-lines, LNCaP (androgen-dependent) and DU145 (androgen-independent), were treated with Pin1 siRNA and its effects on gene expressions were analyzed by microarray. Individual gene regulations induced by Pin1 siRNA or the Pin1 inhibitor Juglone were examined using RT-PCR. In addition, the effects of Juglone on the growth of LNCaP and DU145 transplanted into mice were investigated. Results Microarray analysis revealed that transcriptional factors regulated by Pin1 differed markedly between LNCaP and DU145 cells, the only exception being that Nrf was regulated in the same way by Pin1 siRNA in both cell lines. Despite this marked difference in gene regulations, Pin1 siRNA and Juglone exert a strong inhibitory effect on both the LNCaP and the DU145 cell line, suppressing in vitro cell proliferation as well as tumor enlargement when transplanted into mice. Conclusions Despite Pin1-regulated gene expressions differing between these two prostate cancer cell-lines, LNCaP (androgen-dependent) and DU145 (androgen-independent), Pin1 inhibition suppresses proliferation of both cell-lines. These findings suggest the potential effectiveness of Pin1 inhibitors as therapeutic agents for prostate cancers, regardless of their androgen sensitivity.
Collapse
Affiliation(s)
- Ryuhei Kanaoka
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Akifumi Kushiyama
- Division of Diabetes and Metabolism, The Institute for Adult Diseases, Asahi Life Foundation, 1-6-1 Marunouchi, Chiyoda-ku, Tokyo, Japan
| | - Yasuyuki Seno
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Yusuke Nakatsu
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Yasuka Matsunaga
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Toshiaki Fukushima
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Yoshihiro Tsuchiya
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Hideyuki Sakoda
- Department of Internal Medicine, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Midori Fujishiro
- Department of Internal Medicine, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Takeshi Yamamotoya
- Department of Internal Medicine, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Hideaki Kamata
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
| | - Akio Matsubara
- Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoichiro Asano
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima Japan
- * E-mail:
| |
Collapse
|
28
|
Integrated 3D view of postmating responses by the Drosophila melanogaster female reproductive tract, obtained by micro-computed tomography scanning. Proc Natl Acad Sci U S A 2015; 112:8475-80. [PMID: 26041806 DOI: 10.1073/pnas.1505797112] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Physiological changes in females during and after mating are triggered by seminal fluid components in conjunction with female-derived molecules. In insects, these changes include increased egg production, storage of sperm, and changes in muscle contraction within the reproductive tract (RT). Such postmating changes have been studied in dissected RT tissues, but understanding their coordination in vivo requires a holistic view of the tissues and their interrelationships. Here, we used high-resolution, multiscale micro-computed tomography (CT) scans to visualize and measure postmating changes in situ in the Drosophila female RT before, during, and after mating. These studies reveal previously unidentified dynamic changes in the conformation of the female RT that occur after mating. Our results also reveal how the reproductive organs temporally shift in concert within the confines of the abdomen. For example, we observed chiral loops in the uterus and in the upper common oviduct that relax and constrict throughout sperm storage and egg movement. We found that specific seminal fluid proteins or female secretions mediate some of the postmating changes in morphology. The morphological movements, in turn, can cause further changes due to the connections among organs. In addition, we observed apparent copulatory damage to the female intima, suggesting a mechanism for entry of seminal proteins, or other exogenous components, into the female's circulatory system. The 3D reconstructions provided by high-resolution micro-CT scans reveal how male and female molecules and anatomy interface to carry out and coordinate mating-dependent changes in the female's reproductive physiology.
Collapse
|
29
|
Sirot LK, Wong A, Chapman T, Wolfner MF. Sexual conflict and seminal fluid proteins: a dynamic landscape of sexual interactions. Cold Spring Harb Perspect Biol 2014; 7:a017533. [PMID: 25502515 DOI: 10.1101/cshperspect.a017533] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Sexual reproduction requires coordinated contributions from both sexes to proceed efficiently. However, the reproductive strategies that the sexes adopt often have the potential to give rise to sexual conflict because they can result in divergent, sex-specific costs and benefits. These conflicts can occur at many levels, from molecular to behavioral. Here, we consider sexual conflict mediated through the actions of seminal fluid proteins. These proteins provide many excellent examples in which to trace the operation of sexual conflict from molecules through to behavior. Seminal fluid proteins are made by males and provided to females during mating. As agents that can modulate egg production at several steps, as well as reproductive behavior, sperm "management," and female feeding, activity, and longevity, the actions of seminal proteins are prime targets for sexual conflict. We review these actions in the context of sexual conflict. We discuss genomic signatures in seminal protein (and related) genes that are consistent with current or previous sexual conflict. Finally, we note promising areas for future study and highlight real-world practical situations that will benefit from understanding the nature of sexual conflicts mediated by seminal proteins.
Collapse
Affiliation(s)
- Laura K Sirot
- Department of Biology, College of Wooster, Wooster, Ohio 44691
| | - Alex Wong
- Department of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Tracey Chapman
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
| | - Mariana F Wolfner
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853
| |
Collapse
|
30
|
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.
Collapse
Affiliation(s)
- Hyesook Yoon
- Department of Biomedical Sciences, Florida State University, Tallahassee, FL 32306-4300, USA
| | | | | | | | | |
Collapse
|
31
|
Identification of biochemical differences between different forms of male infertility by nuclear magnetic resonance (NMR) spectroscopy. J Assist Reprod Genet 2014; 31:1195-204. [PMID: 24965760 DOI: 10.1007/s10815-014-0282-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 06/16/2014] [Indexed: 10/25/2022] Open
Abstract
PURPOSE The aim of this study was to analyze the seminal plasma of patients with idiopathic/male factor infertility and healthy controls with proven fertility by NMR spectroscopy, with a hope of establishing difference in biomarker profiles, if any, between the groups. METHODS A total of 103 subjects visiting the infertility clinic of Manipal University with normozoospermic parameters, oligozoospermia, asthenozoospermia, azoospermia and teratozoospermia were included. Semen characteristics were analysed by standard criteria. Seminal plasma was subjected to NMR spectroscopy at a 700 MHz (1)H frequency. The resultant data was analyzed by appropriate software. RESULTS The analysis revealed significant differences between the fertile control group and other forms of male infertility. Interestingly, seminal plasma profile of the idiopathic infertility group showed distinct segregation from the control population as well as other infertile groups. The difference in biomarker profiles between the idiopathic infertility and the rest of the groups combined could originate from either the up-regulation or down regulation of a several compounds, including lysine, arginine, tyrosine, citrate, proline and fructose. CONCLUSION Our data suggests the presence of a metabolic reason behind the origin of idiopathic infertility. (1)H NMR based metabonomic profiling based on concentration of biomarker lysine has the potential to aid in the detection and diagnosis of idiopathic infertility in an efficient manner.
Collapse
|
32
|
Network analyses reveal pervasive functional regulation between proteases in the human protease web. PLoS Biol 2014; 12:e1001869. [PMID: 24865846 PMCID: PMC4035269 DOI: 10.1371/journal.pbio.1001869] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 04/16/2014] [Indexed: 11/21/2022] Open
Abstract
Network modeling of interactions between proteases and their inhibitors reveals a network of new protein connections and cascades in the protease web. Proteolytic processing is an irreversible posttranslational modification affecting a large portion of the proteome. Protease-cleaved mediators frequently exhibit altered activity, and biological pathways are often regulated by proteolytic processing. Many of these mechanisms have not been appreciated as being protease-dependent, and the potential in unraveling a complex new dimension of biological control is increasingly recognized. Proteases are currently believed to act individually or in isolated cascades. However, conclusive but scattered biochemical evidence indicates broader regulation of proteases by protease and inhibitor interactions. Therefore, to systematically study such interactions, we assembled curated protease cleavage and inhibition data into a global, computational representation, termed the protease web. This revealed that proteases pervasively influence the activity of other proteases directly or by cleaving intermediate proteases or protease inhibitors. The protease web spans four classes of proteases and inhibitors and so links both recently and classically described protease groups and cascades, which can no longer be viewed as operating in isolation in vivo. We demonstrated that this observation, termed reachability, is robust to alterations in the data and will only increase in the future as additional data are added. We further show how subnetworks of the web are operational in 23 different tissues reflecting different phenotypes. We applied our network to develop novel insights into biologically relevant protease interactions using cell-specific proteases of the polymorphonuclear leukocyte as a system. Predictions from the protease web on the activity of matrix metalloproteinase 8 (MMP8) and neutrophil elastase being linked by an inactivating cleavage of serpinA1 by MMP8 were validated and explain perplexing Mmp8−/− versus wild-type polymorphonuclear chemokine cleavages in vivo. Our findings supply systematically derived and validated evidence for the existence of the protease web, a network that affects the activity of most proteases and thereby influences the functional state of the proteome and cell activity. Proteases modify the structure and activity of all proteins by peptide bond hydrolysis and are increasingly recognized as integral regulatory components of numerous biological mechanisms. Deregulated protease activity is a common characteristic of many diseases. However, protease drug development is complicated by an incomplete understanding of protease biology. One missing piece in this puzzle is the interplay between proteases: Some proteases activate other proteases, whereas some proteases inactivate inhibitors, leading to currently unpredictable cleavage of additional proteins. Using database annotations we mathematically modeled protease interactions. Our model includes 1,230 proteins and shows connections between 141,523 pairs of proteases, substrates, and inhibitors. Thus, proteases interact on a large scale to form the protease web, which links most studied groups of proteases and their inhibitors, indicating that the potential of regulation through this network is very large. We found that this interplay is robust to targeted or untargeted pruning of the protease web and that protease inhibitors are central to network connectivity. Our model was used to decipher proteolytic pathways that drive inflammatory processes in vivo. Consequently, protease regulatory interactions should be recognized and explored further to understand in vivo roles and to select better drug targets that avoid side effects arising from inhibition of unexpected activities.
Collapse
|
33
|
A Drosophila protease cascade member, seminal metalloprotease-1, is activated stepwise by male factors and requires female factors for full activity. Genetics 2014; 196:1117-29. [PMID: 24514904 DOI: 10.1534/genetics.113.160101] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Females and males of sexually reproducing animals must cooperate at the molecular and cellular level for fertilization to succeed, even though some aspects of reproductive molecular biology appear to involve antagonistic interactions. We previously reported the existence of a proteolytic cascade in Drosophila melanogaster seminal fluid that is initiated in the male and ends in the female. This proteolytic cascade, which processes at least two seminal fluid proteins (Sfps), is a useful model for understanding the regulation of Sfp activities, including proteolysis cascades in mammals. Here, we investigated the activation mechanism of the downstream protease in the cascade, the astacin-family metalloprotease Seminal metalloprotease-1 (Semp1, CG11864), focusing on the relative contribution of the male and female to its activation. We identified a naturally occurring semp1 null mutation within the Drosophila Genetic Reference Panel. By expressing mutant forms of Semp1 in males homozygous for the null mutation, we discovered that cleavage is required for the complete activation of Semp1, and we defined at least two sites that are essential for this activational cleavage. These amino acid residues suggest a two-step mechanism for Semp1 activation, involving the action of at least two male-derived proteases. Although the cascade's substrates potentially influence both fertility and sperm competition within the mated female, the role of female factors in the activation or activity of Semp1 is unknown. We show here that Semp1 can undergo its activational cleavage in male ejaculates, without female contributions, but that cleavage of Semp1's substrates does not proceed to completion in ejaculates, indicating an essential role for female factors in Semp1's full activity. In addition, we find that expression of Semp1 in virgin females demonstrates that females can activate this protease on their own, resulting in activity that is complete but substantially delayed.
Collapse
|
34
|
Miyai M, Matsumoto Y, Yamanishi H, Yamamoto-Tanaka M, Tsuboi R, Hibino T. Keratinocyte-specific mesotrypsin contributes to the desquamation process via kallikrein activation and LEKTI degradation. J Invest Dermatol 2014; 134:1665-1674. [PMID: 24390132 DOI: 10.1038/jid.2014.3] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/15/2013] [Accepted: 10/15/2013] [Indexed: 11/09/2022]
Abstract
Kallikrein-related peptidases (KLKs) have critical roles in corneocyte desquamation and are regulated by lymphoepithelial Kazal-type inhibitor (LEKTI). However, it is unclear how these proteases are activated and how activated KLKs are released from LEKTI in the upper cornified layer. Recently, we reported cloning of a PRSS3 gene product, keratinocyte-specific mesotrypsin, from a cDNA library. We hypothesized that mesotrypsin is involved in the desquamation process, and the aim of the present study was to test this idea by examining the effects of mesotrypsin on representative desquamation-related enzymes pro-KLK5 and pro-KLK7. Incubation of mesotrypsin and these zymogens resulted in generation of the active forms. KLK activities were effectively inhibited by recombinant LEKTI domains D2, D2-5, D2-6, D2-7, D5, D6, D6-9, D7, D7-9, and D10-15, whereas mesotrypsin activity was not susceptible to these domains, and in fact degraded them. Immunoelectron microscopy demonstrated that mesotrypsin was localized in the cytoplasm of granular cells and intercellular spaces of the cornified layer. Proximity ligation assay showed close association between mesotrypsin and KLKs in the granular to cornified layers. Age-dependency analysis revealed that mesotrypsin was markedly downregulated in corneocyte extract from donors in their sixties, compared with younger donors. Collectively, our findings suggest that mesotrypsin contributes to the desquamation process by activating KLKs and degrading the intrinsic KLKs' inhibitor LEKTI.
Collapse
Affiliation(s)
- Masashi Miyai
- Shiseido Research Center, Kanazawa-ku, Yokohama, Japan
| | | | | | - Mami Yamamoto-Tanaka
- Shiseido Research Center, Kanazawa-ku, Yokohama, Japan; Department of Dermatology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Ryoji Tsuboi
- Department of Dermatology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | | |
Collapse
|
35
|
Emerging clinical importance of the cancer biomarkers kallikrein-related peptidases (KLK) in female and male reproductive organ malignancies. Radiol Oncol 2013; 47:319-29. [PMID: 24294176 PMCID: PMC3814276 DOI: 10.2478/raon-2013-0053] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 07/25/2013] [Indexed: 01/01/2023] Open
Abstract
Background Tumor tissue-associated KLKs (kallikrein-related peptidases) are clinically important biomarkers that may allow prognosis of the cancer disease and/or prediction of response/failure of cancer patients to cancer-directed drugs. Regarding the female/male reproductive tract, remarkably, all of the fifteen KLKs are expressed in the normal prostate, breast, cervix uteri, and the testis, whereas the uterus/endometrium and the ovary are expressing a limited number of KLKs only. Conclusions Most of the information regarding elevated expression of KLKs in tumor-affected organs is available for ovarian cancer; depicting them as valuable biomarkers in the cancerous phenotype. In contrast, for breast cancer, a series of KLKs was found to be downregulated. However, in breast cancer, KLK4 is elevated which is also true for ovarian and prostate cancer. In such cases, selective synthetic KLK inhibitors that aim at blocking the proteolytic activities of certain KLKs may serve as future candidate therapeutic drugs to interfere with tumor progression and metastasis.
Collapse
|
36
|
Ferreira JG, Diniz PMM, Andrade de Paula CA, Lobo YA, Paredes-Gamero EJ, Paschoalin T, Nogueira-Pedro A, Maza PK, Toledo MS, Suzuki E, Oliva MLV. The impaired viability of prostate cancer cell lines by the recombinant plant kallikrein inhibitor. J Biol Chem 2013; 288:13641-54. [PMID: 23511635 DOI: 10.1074/jbc.m112.404053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Kallikreins play a pivotal role in establishing prostate cancer. RESULTS In contrast to the classical Kunitz plant inhibitor SbTI, the recombinant kallikrein inhibitor (rBbKIm) led to prostate cancer cell death, whereas fibroblast viability was not affected. CONCLUSION rBbKIm shows selective cytotoxic effect and angiogenesis inhibition against prostate cancer cells. SIGNIFICANCE New actions of rBbKIm may contribute to understanding the mechanisms of prostate cancer. Prostate cancer is the most common type of cancer, and kallikreins play an important role in the establishment of this disease. rBbKIm is the recombinant Bauhinia bauhinioides kallikreins inhibitor that was modified to include the RGD/RGE motifs of the inhibitor BrTI from Bauhinia rufa. This work reports the effects of rBbKIm on DU145 and PC3 prostate cancer cell lines. rBbKIm inhibited the cell viability of DU145 and PC3 cells but did not affect the viability of fibroblasts. rBbKIm caused an arrest of the PC3 cell cycle at the G0/G1 and G2/M phases but did not affect the DU145 cell cycle, although rBbKIm triggers apoptosis and cytochrome c release into the cytosol of both cell types. The differences in caspase activation were observed because rBbKIm treatment promoted activation of caspase-3 in DU145 cells, whereas caspase-9 but not caspase-3 was activated in PC3 cells. Because angiogenesis is important to the development of a tumor, the effect of rBbKIm in this process was also analyzed, and an inhibition of 49% was observed in in vitro endothelial cell capillary-like tube network formation. In summary, we demonstrated that different properties of the protease inhibitor rBbKIm may be explored for investigating the androgen-independent prostate cancer cell lines PC3 and DU145.
Collapse
Affiliation(s)
- Joana Gasperazzo Ferreira
- Departments of Biochemistry, Universidade Federal de São Paulo-Escola Paulista de Medicina, 04044-020, São Paulo, Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Nemazannikova N, Antonas K, Dass CR. Vitamin D: metabolism, molecular mechanisms, and mutations to malignancies. Mol Carcinog 2013; 53:421-31. [PMID: 23359295 DOI: 10.1002/mc.21999] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 11/16/2012] [Accepted: 12/12/2012] [Indexed: 01/30/2023]
Abstract
The potential protective effects of vitamin D against cutaneous carcinogenesis are still poorly understood. The inhibition, by vitamin D, of various cancers in in vitro and in vivo models has triggered detailed investigation of vitamin D effects on neoplastic behavior. Recent studies highlight that such neoplastic features as the tumor microenvironment, angiogenesis, DNA mutagenesis, and apoptosis are all connected to vitamin D metabolic pathways. This review discusses these connections. Vitamin D modulation of the cell cycle, DNA repair and apoptosis via its receptors (VDRs) may have a suppressive effect on skin cancer as some studies suggest. The regulation of multiple tumor signaling pathways by vitamin D may have an implication in cutaneous carcinogenesis and tumor progression to malignancy.
Collapse
|
38
|
Laflamme BA, Wolfner MF. Identification and function of proteolysis regulators in seminal fluid. Mol Reprod Dev 2012; 80:80-101. [PMID: 23109270 DOI: 10.1002/mrd.22130] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 10/20/2012] [Indexed: 01/17/2023]
Abstract
Proteins in the seminal fluid of animals with internal fertilization effect numerous responses in mated females that impact both male and female fertility. Among these proteins is the highly represented class of proteolysis regulators (proteases and their inhibitors). Though proteolysis regulators have now been identified in the seminal fluid of all animals in which proteomic studies of the seminal fluid have been conducted (as well as several other species in which they have not), a unified understanding of the importance of proteolysis to male fertilization success and other reproductive processes has not yet been achieved. In this review, we provide an overview of the identification of proteolysis regulators in the seminal fluid of humans and Drosophila melanogaster, the two species with the most comprehensively known seminal fluid proteomes. We also highlight reports demonstrating the functional significance of specific proteolysis regulators in reproductive and post-mating processes. Finally, we make broad suggestions for the direction of future research into the roles of both active seminal fluid proteolysis regulators and their inactive homologs, another significant class of seminal fluid proteins. We hope that this review aids researchers in pursuing a coordinated study of the functional significance of proteolysis regulators in semen.
Collapse
Affiliation(s)
- Brooke A Laflamme
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853-2703, USA
| | | |
Collapse
|
39
|
Kallikrein-related peptidase 6 (KLK6)gene expression in intracranial tumors. Tumour Biol 2012; 33:1375-83. [PMID: 22477710 DOI: 10.1007/s13277-012-0385-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 03/19/2012] [Indexed: 01/16/2023] Open
Abstract
Kallikrein-related peptidases (KLKs) are emerging novel new biomarkers for prognosis, diagnosis and therapeutic intervention of cancer. Kallikrein-related peptidase 6 (KLK6) has the highest expression in normal brain among other tissues. Although its expression has been extensively studied in many types of cancer and in neurodegenerative diseases, very little is known for its expression in intracranial tumors. In the present study, 73 intracranial tumor samples were examined for KLK6 messenger ribunucleic acid (mRNA) gene expression using quantitative real-time polymerase chain reaction. Statistical analysis revealed the significant association of KLK6 expression with clinical and pathological parameters. Follow-up information was available for a median time of 20 months (range 1-59 months). KLK6 is expressed more frequently in tumors of high malignancy like the glioblastomas (70.6 %) and less in tumors of low malignancy like the meningiomas (12.5 %). KLK6 positive expression is associated with tumor grade (p < 0.001), malignancy status (p < 0.001), and tumor histologic type (p = 0.001). Cox proportional hazard regression model using univariate analysis revealed for the first time that positive KLK6 expression is a significant factor for disease-free survival (DFS; p = 0.041) of patients suffering from intracranial tumors. Kaplan-Meier survival curves demonstrated that negative KLK6 expression is significantly associated with longer DFS (p = 0.032). KLK6 gene expression may have clinical utility as a marker of unfavorable prognosis for intracranial tumors, and consequently, it could be used as target for therapeutic intervention.
Collapse
|
40
|
Liang G, Chen X, Aldous S, Pu SF, Mehdi S, Powers E, Xia T, Wang R. Human kallikrein 6 inhibitors with a para-amidobenzylanmine P1 group identified through virtual screening. Bioorg Med Chem Lett 2012; 22:2450-5. [DOI: 10.1016/j.bmcl.2012.02.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/04/2012] [Accepted: 02/06/2012] [Indexed: 11/28/2022]
|
41
|
Liang G, Chen X, Aldous S, Pu SF, Mehdi S, Powers E, Giovanni A, Kongsamut S, Xia T, Zhang Y, Wang R, Gao Z, Merriman G, McLean LR, Morize I. Virtual Screening and X-ray Crystallography for Human Kallikrein 6 Inhibitors with an Amidinothiophene P1 Group. ACS Med Chem Lett 2012; 3:159-64. [PMID: 24900446 DOI: 10.1021/ml200291e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Accepted: 01/11/2012] [Indexed: 12/14/2022] Open
Abstract
A series of compounds with an amidinothiophene P1 group and a pyrrolidinone-sulphonamide scaffold linker was identified as potent inhibitors of human kallikrein 6 by structure-based virtual screening based on the union accessible binding space of serine proteases. As the first series of potent nonmechanism-based hK6 inhibitors, they may be used as tool compounds for target validation. An X-ray structure of a representative compound complexed with hK6, resolved at a resolution of 1.88 Å, revealed that the amidinothiophene moiety bound in the S1 pocket and the pyrrolidinone-sulphonamide linker projected the aromatic tail into the S' pocket.
Collapse
Affiliation(s)
- Guyan Liang
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Xin Chen
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Suzanne Aldous
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Su-Fen Pu
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Shujaath Mehdi
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Elaine Powers
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Andrew Giovanni
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Sathapana Kongsamut
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Tianhui Xia
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Ying Zhang
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Rachel Wang
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Zhongli Gao
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Gregory Merriman
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Larry R. McLean
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| | - Isabelle Morize
- Molecular Innovative Therapeutics, ‡Fibrosis and Wound Repair, §Global Pharmacovigilance & Epidemiology, ∥Immunology and Inflammation Unit, ⊥Early to Candidate Unit, #Aging Therapeutic Unit, and ∇Biologics, Sanofi Pharmaceuticals, 1041 Route 202/206, Mailstop 203A, Bridgewater, New Jersey 08807, United States
| |
Collapse
|
42
|
LaFlamme BA, Ravi Ram K, Wolfner MF. The Drosophila melanogaster seminal fluid protease "seminase" regulates proteolytic and post-mating reproductive processes. PLoS Genet 2012; 8:e1002435. [PMID: 22253601 PMCID: PMC3257295 DOI: 10.1371/journal.pgen.1002435] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Accepted: 11/09/2011] [Indexed: 01/05/2023] Open
Abstract
Proteases and protease inhibitors have been identified in the ejaculates of animal taxa ranging from invertebrates to mammals and form a major protein class among Drosophila melanogaster seminal fluid proteins (SFPs). Other than a single protease cascade in mammals that regulates seminal clot liquefaction, no proteolytic cascades (i.e. pathways with at least two proteases acting in sequence) have been identified in seminal fluids. In Drosophila, SFPs are transferred to females during mating and, together with sperm, are necessary for the many post-mating responses elicited in females. Though several SFPs are proteolytically cleaved either during or after mating, virtually nothing is known about the proteases involved in these cleavage events or the physiological consequences of proteolytic activity in the seminal fluid on the female. Here, we present evidence that a protease cascade acts in the seminal fluid of Drosophila during and after mating. Using RNAi to knock down expression of the SFP CG10586, a predicted serine protease, we show that it acts upstream of the SFP CG11864, a predicted astacin protease, to process SFPs involved in ovulation and sperm entry into storage. We also show that knockdown of CG10586 leads to lower levels of egg laying, higher rates of sexual receptivity to subsequent males, and abnormal sperm usage patterns, processes that are independent of CG11864. The long-term phenotypes of females mated to CG10586 knockdown males are similar to those of females that fail to store sex peptide, an important elicitor of long-term post-mating responses, and indicate a role for CG10586 in regulating sex peptide. These results point to an important role for proteolysis among insect SFPs and suggest that protease cascades may be a mechanism for precise temporal regulation of multiple post-mating responses in females. Proteases can destroy, activate, or otherwise modulate the function of other proteins. In seminal fluid, many proteins have to be activated or degraded after mating; proteolysis is an effective way to accomplish this because seminal fluid proteins act outside of the cell, where most other regulatory processes cannot be used. Despite the presence of proteases in the seminal fluid of many animals, nearly nothing is known about the kinds of processes they regulate. Here, we present evidence of a protease cascade in the seminal fluid of the fruit fly Drosophila melanogaster. This cascade involves two proteases that are activated during mating. Once in the female, the downstream protease acts on two other proteins that are important for ovulation and sperm storage. Interestingly, the protease at the top of the cascade, CG10586, is also required for other female post-mating responses, including egg laying and sperm usage, independent of the second protease. Thus, CG10586 might be a general regulatory switch used by the male to quickly activate many female responses after mating.
Collapse
Affiliation(s)
- Brooke A. LaFlamme
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
| | - K. Ravi Ram
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
- Embryotoxicology Division, Council of Scientific and Industrial Research–Indian Institute of Toxicology Research, Lucknow, India
| | - Mariana F. Wolfner
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
- * E-mail:
| |
Collapse
|
43
|
α2 Integrin-Dependent Suppression of Pancreatic Adenocarcinoma Cell Invasion Involves Ectodomain Regulation of Kallikrein-Related Peptidase-5. JOURNAL OF ONCOLOGY 2011; 2011:365651. [PMID: 22203845 PMCID: PMC3245846 DOI: 10.1155/2011/365651] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 08/27/2011] [Indexed: 12/18/2022]
Abstract
Previous reports demonstrate that the α2-integrin (α2) mediates pancreatic ductal adenocarcinoma (PDAC) cell interactions with collagens. We found that while well-differentiated cells use α2 exclusively to adhere and migrate on collagenI, poorly differentiated PDAC cells demonstrate reduced reliance on, or complete loss of, α2. Since well-differentiated PDAC lines exhibit reduced in vitro invasion and α2-blockade suppressed invasion of well-differentiated lines exclusively, we hypothesized that α2 may suppress the malignant phenotype in PDAC. Accordingly, ectopic expression of α2 retarded in vitro invasion and maintenance on collagenI exacerbated this effect. Affymetrix profiling revealed that kallikrein-related peptidase-5 (KLK5) was specifically upregulated by α2, and reduced α2 and KLK5 expression was observed in poorly differentiated PDAC cells in situ. Accordingly, well-differentiated PDAC lines express KLK5, and KLK5 blockade increased the invasion of KLK5-positive lines. The α2-cytoplasmic domain was dispensable for these effects, demonstrating that the α2-ectodomain and KLK5 coordinately regulate a less invasive phenotype in PDAC.
Collapse
|
44
|
Smith JR, Stanfield GM. TRY-5 is a sperm-activating protease in Caenorhabditis elegans seminal fluid. PLoS Genet 2011; 7:e1002375. [PMID: 22125495 PMCID: PMC3219595 DOI: 10.1371/journal.pgen.1002375] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 09/12/2011] [Indexed: 12/20/2022] Open
Abstract
Seminal fluid proteins have been shown to play important roles in male reproductive success, but the mechanisms for this regulation remain largely unknown. In Caenorhabditis elegans, sperm differentiate from immature spermatids into mature, motile spermatozoa during a process termed sperm activation. For C. elegans males, sperm activation occurs during insemination of the hermaphrodite and is thought to be mediated by seminal fluid, but the molecular nature of this activity has not been previously identified. Here we show that TRY-5 is a seminal fluid protease that is required in C. elegans for male-mediated sperm activation. We observed that TRY-5::GFP is expressed in the male somatic gonad and is transferred along with sperm to hermaphrodites during mating. In the absence of TRY-5, male seminal fluid loses its potency to transactivate hermaphrodite sperm. However, TRY-5 is not required for either hermaphrodite or male fertility, suggesting that hermaphrodite sperm are normally activated by a distinct hermaphrodite-specific activator to which male sperm are also competent to respond. Within males, TRY-5::GFP localization within the seminal vesicle is antagonized by the protease inhibitor SWM-1. Together, these data suggest that TRY-5 functions as an extracellular activator of C. elegans sperm. The presence of TRY-5 within the seminal fluid couples the timing of sperm activation to that of transfer of sperm into the hermaphrodite uterus, where motility must be rapidly acquired. Our results provide insight into how C. elegans has adopted sex-specific regulation of sperm motility to accommodate its male-hermaphrodite mode of reproduction.
Collapse
Affiliation(s)
- Joseph R. Smith
- Department of Human Genetics, University of Utah, Salt Lake City, Utah, United States of America
| | - Gillian M. Stanfield
- Department of Human Genetics, University of Utah, Salt Lake City, Utah, United States of America
| |
Collapse
|
45
|
Härkönen HH, Mattsson JM, Määttä JAE, Stenman UH, Koistinen H, Matero S, Windshügel B, Poso A, Lahtela-Kakkonen M. The discovery of compounds that stimulate the activity of kallikrein-related peptidase 3 (KLK3). ChemMedChem 2011; 6:2170-8. [PMID: 21953896 DOI: 10.1002/cmdc.201100349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 09/11/2011] [Indexed: 11/05/2022]
Abstract
Kallikrein-related peptidase 3 (KLK3), also known as prostate-specific antigen (PSA), is the most useful biomarker for prostate cancer (PCa). KLK3 is suggested to play a role in regulating cancer growth through anti-angiogenic activity in vivo and in vitro. This feature, together with its specificity for prostate tissue, makes KLK3 an intriguing target for the design of new therapies for PCa. 3D pharmacophores for KLK3-stimulating compounds were generated based on peptides that bind specifically to KLK3 and increase its enzymatic activity. As a result of pharmacophore-based virtual screening, four small, drug-like compounds with affinity for KLK3 were discovered and validated by capillary differential scanning calorimetry. One of the compounds also stimulated the activity of KLK3, and is therefore the first published small molecule with such an activity.
Collapse
Affiliation(s)
- Henna H Härkönen
- School of Pharmacy, Pharmaceutical Chemistry, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland.
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Jiang R, Shi Z, Johnson JJ, Liu Y, Stack MS. Kallikrein-5 promotes cleavage of desmoglein-1 and loss of cell-cell cohesion in oral squamous cell carcinoma. J Biol Chem 2011; 286:9127-35. [PMID: 21163944 PMCID: PMC3059049 DOI: 10.1074/jbc.m110.191361] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 11/24/2010] [Indexed: 11/06/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) ranks among the top 8 causes of cancer death worldwide, with only a 60% 5-year survival rate, highlighting the need for discovery of novel biomarkers and therapeutic targets. We have previously reported that expression of a panel of serine proteinase kallikreins (KLK 5, 7, 8, and 10) is correlated with formation of more aggressive OSCC tumors in a murine orthotopic OSCC model and is elevated in human OSCC. Current studies focus on understanding the potential role of KLK5 in OSCC progression. In initial studies, KLK levels in malignant OSCC cells (SCC25) were compared with cells from normal oral mucosa (OKF/6) and pre-malignant oral keratinocytes (pp126) using qPCR. A marked elevation of all KLKs was observed in aggressive SCC25 cells relative to OKF/6 cells. In normal skin, KLKs are involved in desquamation during epidermal differentiation via proteolytic cleavage of the desmosomal cadherin component desmoglein 1 (Dsg1). As loss of cell-cell cohesion is prevalent in tumor metastasis, Dsg1 integrity was evaluated. Results show that SCC25 cells exhibit cleavage of Dsg1, which is blocked by proteinase inhibitor treatment as well as by siRNA silencing of KLK5 expression. Furthermore, cell-cell aggregation assays demonstrate that silencing of KLK5 enforces cell-cell adhesion; conversely, overexpression of KLK5 in normal oral mucosal cells (OKF/6) enhances cell dispersal. These data suggest that KLK5 may promote metastatic dissemination of OSCC by promoting loss of junctional integrity through cleavage of desmoglein 1.
Collapse
Affiliation(s)
- Rong Jiang
- From the Department of Pathology and Anatomical Science and
| | - Zonggao Shi
- From the Department of Pathology and Anatomical Science and
| | | | - Yueying Liu
- From the Department of Pathology and Anatomical Science and
| | - M. Sharon Stack
- From the Department of Pathology and Anatomical Science and
- Medical Pharmacology & Physiology, University of Missouri School of Medicine, Columbia, Missouri 65212
| |
Collapse
|
47
|
Shi Z, Dragin N, Miller ML, Stringer KF, Johansson E, Chen J, Uno S, Gonzalez FJ, Rubio CA, Nebert DW. Oral benzo[a]pyrene-induced cancer: two distinct types in different target organs depend on the mouse Cyp1 genotype. Int J Cancer 2010; 127:2334-50. [PMID: 20127859 DOI: 10.1002/ijc.25222] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Benzo[a]pyrene (BaP) is a prototypical polycyclic aromatic hydrocarbon (PAH) found in combustion processes. Cytochrome P450 1A1 and 1B1 enzymes (CYP1A1 and CYP1B1) can both detoxify PAHs and activate them to cancer-causing reactive intermediates. Following high dosage of oral BaP (125 mg/kg/day), ablation of the mouse Cyp1a1 gene causes immunosuppression and death within ∼28 days, whereas Cyp1(+/+) wild-type mice remain healthy for >12 months on this regimen. In this study, male Cyp1(+/+) wild-type, Cyp1a1(-/-) and Cyp1b1(-/-) single-knockout and Cyp1a1/1b1(-/-) double-knockout mice received a lower dose (12.5 mg/kg/day) of oral BaP. Tissues from 16 different organs-including proximal small intestine (PSI), liver and preputial gland duct (PGD)-were evaluated; microarray cDNA expression and >30 mRNA levels were measured. Cyp1a1(-/-) mice revealed markedly increased CYP1B1 mRNA levels in the PSI, and between 8 and 12 weeks developed unique PSI adenomas and adenocarcinomas. Cyp1a1/1b1(-/-) mice showed no PSI tumors but instead developed squamous cell carcinoma of the PGD. Cyp1(+/+) and Cyp1b1(-/-) mice remained healthy with no remarkable abnormalities in any tissue examined. PSI adenocarcinomas exhibited striking upregulation of the Xist gene, suggesting epigenetic silencing of specific genes on the Y-chromosome; the Rab30 oncogene was upregulated; the Nr0b2 tumor suppressor gene was downregulated; paradoxical overexpression of numerous immunoglobulin kappa- and heavy-chain variable genes was found-although the adenocarcinoma showed no immunohistochemical evidence of being lymphatic in origin. This oral BaP mouse paradigm represents an example of "gene-environment interactions" in which the same exposure of carcinogen results in altered target organ and tumor type, as a function of just 1 or 2 globally absent genes.
Collapse
Affiliation(s)
- Zhanquan Shi
- Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH 45267-0056, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Pavlopoulou A, Pampalakis G, Michalopoulos I, Sotiropoulou G. Evolutionary history of tissue kallikreins. PLoS One 2010; 5:e13781. [PMID: 21072173 PMCID: PMC2967472 DOI: 10.1371/journal.pone.0013781] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Accepted: 10/08/2010] [Indexed: 12/12/2022] Open
Abstract
The gene family of human kallikrein-related peptidases (KLKs) encodes proteins with diverse and pleiotropic functions in normal physiology as well as in disease states. Currently, the most widely known KLK is KLK3 or prostate-specific antigen (PSA) that has applications in clinical diagnosis and monitoring of prostate cancer. The KLK gene family encompasses the largest contiguous cluster of serine proteases in humans which is not interrupted by non-KLK genes. This exceptional and unique characteristic of KLKs makes them ideal for evolutionary studies aiming to infer the direction and timing of gene duplication events. Previous studies on the evolution of KLKs were restricted to mammals and the emergence of KLKs was suggested about 150 million years ago (mya). In order to elucidate the evolutionary history of KLKs, we performed comprehensive phylogenetic analyses of KLK homologous proteins in multiple genomes including those that have been completed recently. Interestingly, we were able to identify novel reptilian, avian and amphibian KLK members which allowed us to trace the emergence of KLKs 330 mya. We suggest that a series of duplication and mutation events gave rise to the KLK gene family. The prominent feature of the KLK family is that it consists of tandemly and uninterruptedly arrayed genes in all species under investigation. The chromosomal co-localization in a single cluster distinguishes KLKs from trypsin and other trypsin-like proteases which are spread in different genetic loci. All the defining features of the KLKs were further found to be conserved in the novel KLK protein sequences. The study of this unique family will further assist in selecting new model organisms for functional studies of proteolytic pathways involving KLKs.
Collapse
Affiliation(s)
- Athanasia Pavlopoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
| | - Georgios Pampalakis
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
| | | | - Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
- * E-mail:
| |
Collapse
|
49
|
Isokpehi RD, Cohly HHP, Anyanwu MN, Rajnarayanan RV, Tchounwou PB, Udensi UK, Graham-Evans BE. Candidate single nucleotide polymorphism markers for arsenic responsiveness of protein targets. Bioinform Biol Insights 2010; 4:99-111. [PMID: 20981267 PMCID: PMC2964045 DOI: 10.4137/bbi.s5498] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Arsenic is a toxic metalloid that causes skin cancer and binds to cysteine residues—a property that could be used to infer arsenic responsiveness of a target protein. Non-synonymous Single Nucleotide Polymorphisms (nsSNPs) result in amino acid substitutions and may alter arsenic binding with cysteine residues. Thus, the objective of this investigation was to identify and analyze nsSNPs that lead to substitutions to or from cysteine residues as an indication of increased or decreased arsenic responsiveness. We hypothesize that integration of data on molecular impacts of nsSNPs and arsenic-gene relationships will identify nsSNPs that could serve as arsenic responsiveness markers. We have analyzed functional and structural impacts data for 5,811 nsSNPs linked to 1,224 arsenic-annotated genes. In addition to the identified candidate nsSNPs for increased or reduced arsenic responsiveness, we observed i) a nsSNP that results in the breakage of a disulfide bond, as candidate marker for reduced arsenic responsiveness of KLK7, a secreted serine protease participate in normal shedding of the skin; and ii) 6 pairs of vicinal cysteines in KLK7 protein that could be binding sites for arsenic. In summary, our analysis identified non-synonymous SNPs that could be used to evaluate responsiveness of a protein target to arsenic. In particular, an epidermal expressed serine protease with crucial function in normal skin physiology was prioritized on the basis of abundance of vicinal cysteines for further research on arsenic-induced keratinocyte carcinogenesis.
Collapse
Affiliation(s)
- Raphael D Isokpehi
- RCMI-Center for Environmental Health, College of Science, Engineering and Technology, Jackson State University, Jackson, Mississippi 39217, USA
| | | | | | | | | | | | | |
Collapse
|
50
|
Angelopoulou K, Karagiannis GS. Structural characterization and expression of five novel canine kallikrein-related peptidases in mammary cancer. Mamm Genome 2010; 21:516-24. [PMID: 20853168 DOI: 10.1007/s00335-010-9282-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Accepted: 09/01/2010] [Indexed: 11/28/2022]
Abstract
Kallikrein-related peptidases (KLKs) constitute a major family of proteolytic enzymes implicated in the pathogenesis of many diseases, including cancer. Recently, we have suggested that the dog might represent a useful animal model for in vivo KLK studies and sought to investigate the expression patterns of the largely unknown canine KLK family. Along the same lines, in the present report we experimentally characterized five previously unidentified (CANFA)KLKs and investigated their expression in normal and tumorous mammary tissues. We demonstrated that the GenBank sequences that were predicted in silico to represent the canine orthologs of human KLK5, KLK6, KLK7, and KLK8 mRNAs were correct, whereas the one corresponding to the canine KLK4 had a major inconsistency within its 5'-terminus. More specifically, two internal segments of the first intron of KLK4, 78 and 97 bp long, respectively, were wrongfully determined to constitute the initial 175-nucleotide sequence of the KLK4 coding region. (CANFA)KLK8 was further shown to undergo alternative splicing that generated an mRNA transcript missing exon 4 (variant 1). All five (CANFA)KLKs were almost ubiquitously expressed in both cancerous and noncancerous mammary tissues. Lower positivity rates were identified for (CANFA)KLK8 variant 1. A trend for upregulation in tumors was observed for (CANFA)KLK5, (CANFA)KLK7, and (CANFA)KLK8, whereas (CANFA)KLK8 variant 1 tended to be downregulated in cancer. Moreover, a parallel expression of the studied canine KLKs was observed, which suggested a possible participation of the encoded enzymes in interrelated proteolytic cascades taking place in the mammary gland.
Collapse
Affiliation(s)
- Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece.
| | | |
Collapse
|