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Linders DGJ, Bijlstra OD, Fallert LC, Hilling DE, Walker E, Straight B, March TL, Valentijn ARPM, Pool M, Burggraaf J, Basilion JP, Vahrmeijer AL, Kuppen PJK. Cysteine Cathepsins in Breast Cancer: Promising Targets for Fluorescence-Guided Surgery. Mol Imaging Biol 2023; 25:58-73. [PMID: 36002710 DOI: 10.1007/s11307-022-01768-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 12/24/2022]
Abstract
The majority of breast cancer patients is treated with breast-conserving surgery (BCS) combined with adjuvant radiation therapy. Up to 40% of patients has a tumor-positive resection margin after BCS, which necessitates re-resection or additional boost radiation. Cathepsin-targeted near-infrared fluorescence imaging during BCS could be used to detect residual cancer in the surgical cavity and guide additional resection, thereby preventing tumor-positive resection margins and associated mutilating treatments. The cysteine cathepsins are a family of proteases that play a major role in normal cellular physiology and neoplastic transformation. In breast cancer, the increased enzymatic activity and aberrant localization of many of the cysteine cathepsins drive tumor progression, proliferation, invasion, and metastasis. The upregulation of cysteine cathepsins in breast cancer cells indicates their potential as a target for intraoperative fluorescence imaging. This review provides a summary of the current knowledge on the role and expression of the most important cysteine cathepsins in breast cancer to better understand their potential as a target for fluorescence-guided surgery (FGS). In addition, it gives an overview of the cathepsin-targeted fluorescent probes that have been investigated preclinically and in breast cancer patients. The current review underscores that cysteine cathepsins are highly suitable molecular targets for FGS because of favorable expression and activity patterns in virtually all breast cancer subtypes. This is confirmed by cathepsin-targeted fluorescent probes that have been shown to facilitate in vivo breast cancer visualization and tumor resection in mouse models and breast cancer patients. These findings indicate that cathepsin-targeted FGS has potential to improve treatment outcomes in breast cancer patients.
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Salim I, Seseogullari-Dirihan R, Imazato S, Tezvergil-Mutluay A. The inhibitory effects of various ions released from S-PRG fillers on dentin protease activity. Dent Mater J 2023; 42:99-104. [PMID: 36450455 DOI: 10.4012/dmj.2022-141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
This study investigates the effect of ions released from S-PRG fillers on host-derived enzymatic degradation of dentin collagen matrices. Dentin beams (n=80) were demineralized and distributed to eight groups following baseline dry mass and total MMP activity assessments. Each group treated with boron, fluoride, sodium, silicone, strontium, aluminium, or S-PRG eluate solutions for 5 min. Untreated beams served as control. After pre-treatment, MMP activity was reassessed, beams were incubated in complete medium for 1 week, dry mass was reassessed. Incubation media were analyzed for MMP and cathepsin-K-mediated degradation fragments. Data were analyzed with ANOVA and Tukey's test. All pretreatment groups showed significant reduction in total MMP activity (p<0.05) that was sustainable after incubation in all groups except for boron and silicone groups (p<0.05). Cathepsin-K activity did not differ between control or treatment groups. The results indicated that ions released from S-PRG fillers have the potential to partly inhibit MMP-mediated endogenous enzymatic activity.
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Affiliation(s)
- Ikram Salim
- Finnish Doctoral Program in Oral Sciences (FINDOS), University of Turku, Institute of Dentistry.,Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku.,Adhesive Dentistry Research Group, Biomaterials, and Medical Device Research Program, Biocity
| | - Roda Seseogullari-Dirihan
- Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku.,Adhesive Dentistry Research Group, Biomaterials, and Medical Device Research Program, Biocity
| | - Satoshi Imazato
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
| | - Arzu Tezvergil-Mutluay
- Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku.,Adhesive Dentistry Research Group, Biomaterials, and Medical Device Research Program, Biocity.,Turku University Hospital, TYKS, University of Turku
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Biasizzo M, Javoršek U, Vidak E, Zarić M, Turk B. Cysteine cathepsins: A long and winding road towards clinics. Mol Aspects Med 2022; 88:101150. [PMID: 36283280 DOI: 10.1016/j.mam.2022.101150] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 12/03/2022]
Abstract
Biomedical research often focuses on properties that differentiate between diseased and healthy tissue; one of the current focuses is elevated expression and altered localisation of proteases. Among these proteases, dysregulation of cysteine cathepsins can frequently be observed in inflammation-associated diseases, which tips the functional balance from normal physiological to pathological manifestations. Their overexpression and secretion regularly exhibit a strong correlation with the development and progression of such diseases, making them attractive pharmacological targets. But beyond their mostly detrimental role in inflammation-associated diseases, cysteine cathepsins are physiologically highly important enzymes involved in various biological processes crucial for maintaining homeostasis and responding to different stimuli. Consequently, several challenges have emerged during the efforts made to translate basic research data into clinical applications. In this review, we present both physiological and pathological roles of cysteine cathepsins and discuss the clinical potential of cysteine cathepsin-targeting strategies for disease management and diagnosis.
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Affiliation(s)
- Monika Biasizzo
- Jozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000, Ljubljana, Slovenia; International Postgraduate School Jozef Stefan, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Urban Javoršek
- Jozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000, Ljubljana, Slovenia; International Postgraduate School Jozef Stefan, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Eva Vidak
- Jozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000, Ljubljana, Slovenia; International Postgraduate School Jozef Stefan, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Miki Zarić
- Jozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000, Ljubljana, Slovenia; International Postgraduate School Jozef Stefan, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Boris Turk
- Jozef Stefan Institute, Department of Biochemistry and Molecular and Structural Biology, Jamova 39, SI-1000, Ljubljana, Slovenia; Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, SI-1000, Ljubljana, Slovenia.
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Li K, Ngo FM, Yau AYL, Tam WWL, Tse ECM, Tsoi JKH, Yiu CKY. Mussel-inspired monomer - A new selective protease inhibitor against dentine collagen degradation. Dent Mater 2022; 38:1149-61. [PMID: 35680429 DOI: 10.1016/j.dental.2022.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 04/03/2022] [Accepted: 05/24/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVES To evaluate the inhibitory effect of a novel mussel-inspired monomer (N-(3,4-dihydroxyphenethyl)methacrylamide (DMA) on the soluble and matrix-bound proteases. METHODS The inhibitory effect of DMA (0, 1, 5, and 10 mM) and 1 mM chlorhexidine (CHX) dissolved in 50% ethanol/water on soluble recombinant human matrix metalloproteinases (rhMMP-2, -8, and -9), as well as cysteine cathepsins (B and K) were evaluated using both fluorometric assay kits and molecular docking. The effect of CHX and DMA on matrix-bound proteases was examined by in situ zymography, and the fluorescence intensity and relative area were calculated by Image J software. All data obtained were analyzed by one-way ANOVA followed by Tukey test (α = 0.05). RESULTS The anti-proteolytic ability of DMA increased in a dose-dependent manner except that of rhMMP-9. Inhibitory effect of 1 mM DMA against rhMMP-2, - 8, - 9, as well as cathepsin B and K was all significantly lower than 1 mM CHX (p < 0.05). The molecular docking analysis was in good agreement with the experimental results, that the binding energy of DMA was lower than CHX for all proteases. In situ zymography revealed that all DMA- and CHX-treated groups significantly inactivated the matrix-bound proteases, with a dramatic reduction of the fluorescence intensity and relative area compared with the control group (p < 0.05). SIGNIFICANCE Under the prerequisite condition that the overall inhibitory performance on matrix-bound proteases was comparable by DMA and CHX, the more selective property of DMA could avoid inducing potential negative effects by suppressing MMP-9 when applied in dental treatment compared with CHX.
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Dvoryakova EA, Vinokurov KS, Tereshchenkova VF, Dunaevsky YE, Belozersky MA, Oppert B, Filippova IY, Elpidina EN. Primary digestive cathepsins L of Tribolium castaneum larvae: Proteomic identification, properties, comparison with human lysosomal cathepsin L. Insect Biochem Mol Biol 2022; 140:103679. [PMID: 34763092 DOI: 10.1016/j.ibmb.2021.103679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
We previously described the most highly expressed enzymes from the gut of the red flour beetle, Tribolium castaneum, as cathepsins L. In the present study, two C1 family-specific cysteine cathepsin L enzymes from the larval midgut were isolated and identified using MALDI-TOF MS analysis. The isolated T. castaneum cathepsins were characterized according to their specificity against chromogenic and fluorogenic peptide substrates, and the most efficiently hydrolyzed substrate was Z-FR-pNA with Arg in the P1 subsite. The specificity of insect digestive cathepsins was compared with human lysosomal cathepsin L, the well-studied peptidase of the C1 family cathepsins. T. castaneum digestive cathepsins efficiently hydrolyzed substrates with small and uncharged amino acid residues at P1 (Ala, Gln) more than human cathepsin L. In particular, these insect digestive cathepsins cleaved with higher efficiency the analogs of immunogenic peptides of gliadins, which contribute to autoimmune celiac disease in susceptible people, and thus insect enzymes may be useful in enzymatic treatments for this disease. A bioinformatic study supported by the proteomic analysis of the primary structures of the isolated cathepsins was used to compare tertiary models. The phylogenetic analysis of coleopteran and human cathepsins from the L subfamily indicated that insect digestive cathepsins grouped separately from lysosomal cathepsins.
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Affiliation(s)
- E A Dvoryakova
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - K S Vinokurov
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Czech Republic, Branišovská 1160/31, České Budějovice, 370 05, Czech Republic
| | - V F Tereshchenkova
- Department of Chemistry, Moscow State University, Moscow, 119991, Russia
| | - Y E Dunaevsky
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - M A Belozersky
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - B Oppert
- USDA Agricultural Research Service, Center for Grain and Animal Health Research, Manhattan, KS, 66502, USA.
| | - I Y Filippova
- Department of Chemistry, Moscow State University, Moscow, 119991, Russia
| | - E N Elpidina
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
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Bhuiyan AI, Rathod P, Ghoshal S, Dana D, Das T, Li G, Dickson AA, Rafi F, Subramaniam GS, Fath KR, Paroly S, Chang EJ, Pathak SK. Clickable, selective, and cell-permeable activity-based probe of human cathepsin B - Minimalistic approach for enhanced selectivity. Bioorg Chem 2021; 117:105463. [PMID: 34753058 DOI: 10.1016/j.bioorg.2021.105463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/28/2021] [Indexed: 01/13/2023]
Abstract
Human cathepsin B is a cysteine-dependent protease whose roles in both normal and diseased cellular states remain yet to be fully delineated. This is primarily due to overlapping substrate specificities and lack of unambiguously annotated physiological functions. In this work, a selective, cell-permeable, clickable and tagless small molecule cathepsin B probe, KDA-1, is developed and kinetically characterized. KDA-1 selectively targets active site Cys25 residue of cathepsin B for labeling and can detect active cellular cathepsin B in proteomes derived from live human MDA-MB-231 breast cancer cells and HEK293 cells. It is anticipated that KDA-1 probe will find suitable applications in functional proteomics involving human cathepsin B enzyme.
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Affiliation(s)
- Ashif I Bhuiyan
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA; Chemistry Doctoral Program, The Graduate Center of The City University of New York, 365 5th Ave, New York, NY 10016, USA
| | - Pratikkumar Rathod
- Laguardia Community College, 31-10 Thomson Ave, Long Island City, NY 11101, USA
| | - Sarbani Ghoshal
- Department of Biological Sc. and Geology, QCC-CUNY, Bayside, NY, USA
| | - Dibyendu Dana
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA
| | - Tuhin Das
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA
| | - Guoshen Li
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA
| | - Anna A Dickson
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA
| | - Faiza Rafi
- Bard High School Early College Queens, 30-20 Thomson Avenue, Long Island City, NY 11101, USA
| | - Gopal S Subramaniam
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA
| | - Karl R Fath
- Queens College of The City University of New York, Department of Biology, 65-30 Kissena Blvd, Flushing, NY 11367, USA; Biochemistry Doctoral Program, The Graduate Center of The City University of New York, 365 5th Ave, New York, NY 10016, USA
| | - Suneeta Paroly
- Bard High School Early College Queens, 30-20 Thomson Avenue, Long Island City, NY 11101, USA
| | - Emmanuel J Chang
- Biochemistry Doctoral Program, The Graduate Center of The City University of New York, 365 5th Ave, New York, NY 10016, USA; York College of the City University of New York, Department of Chemistry, 94-20 Guy R. Brewer Blvd, Jamaica, NY 11451, USA; Chemistry Doctoral Program, The Graduate Center of The City University of New York, 365 5th Ave, New York, NY 10016, USA
| | - Sanjai K Pathak
- Queens College of The City University of New York, Chemistry and Biochemistry Department, 65-30 Kissena Blvd, Flushing, NY 11367, USA; Biochemistry Doctoral Program, The Graduate Center of The City University of New York, 365 5th Ave, New York, NY 10016, USA; Chemistry Doctoral Program, The Graduate Center of The City University of New York, 365 5th Ave, New York, NY 10016, USA.
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Al-Hashimi A, Venugopalan V, Sereesongsaeng N, Tedelind S, Pinzaru AM, Hein Z, Springer S, Weber E, Führer D, Scott CJ, Burden RE, Brix K. Significance of nuclear cathepsin V in normal thyroid epithelial and carcinoma cells. Biochim Biophys Acta Mol Cell Res 2020; 1867:118846. [PMID: 32910988 DOI: 10.1016/j.bbamcr.2020.118846] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/29/2020] [Indexed: 12/11/2022]
Abstract
Altered expression and/or localization of cysteine cathepsins is believed to involve in thyroid diseases including cancer. Here, we examined the localization of cathepsins B and V in human thyroid tissue sections of different pathological conditions by immunolabeling and morphometry. Cathepsin B was mostly found within endo-lysosomes as expected. In contrast, cathepsin V was detected within nuclei, predominantly in cells of cold nodules, follicular and papillary thyroid carcinoma tissue, while it was less often detected in this unusual localization in hot nodules and goiter tissue. To understand the significance of nuclear cathepsin V in thyroid cells, this study aimed to establish a cellular model of stable nuclear cathepsin V expression. As representative of a specific form lacking the signal peptide and part of the propeptide, N-terminally truncated cathepsin V fused to eGFP recapitulated the nuclear localization of endogenous cathepsin V throughout the cell cycle in Nthy-ori 3-1 cells. Interestingly, the N-terminally truncated cathepsin V-eGFP was more abundant in the nuclei during S phase. These findings suggested a possible contribution of nuclear cathepsin V forms to cell cycle progression. Indeed, we found that N-terminally truncated cathepsin V-eGFP expressing cells were more proliferative than those expressing full-length cathepsin V-eGFP or wild type controls. We conclude that a specific molecular form of cathepsin V localizes to the nucleus of thyroid epithelial and carcinoma cells, where it might involve in deregulated pathways leading to hyperproliferation. These findings highlight the necessity to better understand cathepsin trafficking in health and disease. In particular, cell type specificity of mislocalization of cysteine cathepsins, which otherwise act in a functionally redundant manner, seems to be important to understand their non-canonical roles in cell cycle progression.
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Affiliation(s)
- Alaa Al-Hashimi
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
| | - Vaishnavi Venugopalan
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
| | | | - Sofia Tedelind
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
| | - Alexandra M Pinzaru
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
| | - Zeynep Hein
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
| | - Sebastian Springer
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
| | - Ekkehard Weber
- Institute of Physiological Chemistry, Martin Luther University Halle-Wittenberg, Hollystrasse 1, D-06114 Halle-Saale, Germany
| | - Dagmar Führer
- Universität Duisburg-Essen, Universitätsklinikum Essen (AöR), Klinik für Endokrinologie, Diabetologie und Stoffwechsel, Hufeland Strasse 55, D-45177 Essen, Germany
| | - Christopher J Scott
- Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Roberta E Burden
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Klaudia Brix
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany.
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Bafail A, Carrilho MR, Kishen A, Prakki A. Effect of protease inhibitor specificity on dentin matrix properties. J Mech Behav Biomed Mater 2020; 109:103861. [PMID: 32543386 DOI: 10.1016/j.jmbbm.2020.103861] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate protease activity of dentin matrices subjected to treatment with non-specific (chlorhexidine - CHX), cysteine cathepsin specific (E-64), and cysteine cathepsin-K (CT-K) specific (Odanacatib - ODN) inhibitors. METHODS Pulverized dentin powder obtained from human dentin disks (0.5 mm thickness) completely demineralized with 10% H3PO4 were challenged in 1 mL lactic acid (LA) (0.1M, pH 5.5) or stored in deionized water for 30 min. Aliquots of dentin powder were then immersed in 1 mL of CHX (2%), E-64 (10 μM and 20 μM) or Odanacatib (0.2 nM and 1 μM) for 30min. Degradation of dentin collagen was determined by telopeptide assays measuring the sub-product release of C-terminal cross-linked telopeptides (ICTP) and C-terminal peptide (CTX) in incubation media, which correlates with matrix metalloproteinases (MMP) and CT-K activities respectively (n = 3). The ICTP and CTX data were normalized to concentration of total protein (ICTPtp and CTXtp) in the media, measured by bicinchoninic acid assay. Dentin matrix properties were also measured by gravimetric change (n = 8) and ultimate tensile strength (UTS) (n = 10). Data were analyzed by one-way ANOVA followed by Tukey's post-hoc test and independent t-test (α = 5%). RESULTS Telopeptide assays showed significantly lower CTXtp values after treatment with E-64 and Odanacatib. E-64 and Odanacatib at all tested concentrations significantly reduced the release of ICTPtp. Gravimetric analysis showed no significant difference between the tested inhibitors and control except for CHX after lactic acid challenge. UTS results showed significantly higher values for E-64 (20 μM) and Odanacatib (0.2 nM and 1 μM) groups in deionized water. SIGNIFICANCE Dentin therapies targeting enzymes such as CT-K by specific inhibitors may provide superior pharmacokinetics and optimum efficacy due to precise protein binding, consequently limiting collagen degradation directly or indirectly by enzyme related pathways.
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Affiliation(s)
- Arwa Bafail
- Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward St, Toronto, ON, M5G 1G6, Canada; Restorative Dental Sciences, Faculty of Dentistry, Taibah University, Janadah Bin Umayyah Road, Tayba, Medina, 42353, Saudi Arabia
| | - Marcela Rocha Carrilho
- College of Dental Medicine Illinois, Midwestern University, 555 31st Street, Downers Grove, IL, 60515, USA
| | - Anil Kishen
- Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward St, Toronto, ON, M5G 1G6, Canada
| | - Anuradha Prakki
- Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward St, Toronto, ON, M5G 1G6, Canada.
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Jakoš T, Pišlar A, Pečar Fonović U, Švajger U, Kos J. Cysteine cathepsins L and X differentially modulate interactions between myeloid-derived suppressor cells and tumor cells. Cancer Immunol Immunother 2020; 69:1869-1880. [PMID: 32372139 DOI: 10.1007/s00262-020-02592-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/27/2020] [Indexed: 12/11/2022]
Abstract
Increased proteolytic activity of cysteine cathepsins has long been known to facilitate malignant progression, and it has also been associated with tumor-promoting roles of myeloid-derived suppressor cells (MDSCs). Consequently, cysteine cathepsins have gained much attention as potential targets for cancer therapies. However, cross-talk between tumor cells and MDSCs needs to be taken into account when studying the efficacy of cathepsin inhibitors as anti-cancer agents. Here, we demonstrate the potential of the MDA-MB-231 breast cancer cell line to generate functional MDSCs from CD14+ cells of healthy human donors. During this transition to MDSCs, the overall levels of cysteine cathepsins increased, with the largest responses for cathepsins L and X. We used small-molecule inhibitors of cathepsins L and X (i.e., CLIK-148, Z9, respectively) to investigate their functional impact on tumor cells and immune cells in this co-culture system. Interactions with peripheral blood mononuclear cells reduced MDA-MB-231 cell invasion, while inhibition of cathepsin X activity by Z9 restored invasion. Inhibition of cathepsin L activity using CLIK-148 resulted in significantly increased CD8+ cytotoxicity. Of note, inhibition of cathepsins L and X in separate immune or tumor cells did not promote these functional changes. Together, our findings underlie the importance of tumor cell-immune cell interactions in the evaluation of the anti-cancer potential of cysteine cathepsin inhibitors.
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Affiliation(s)
- Tanja Jakoš
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Anja Pišlar
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Urša Pečar Fonović
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Urban Švajger
- Department for Therapeutic Services, Blood Transfusion Centre of Slovenia, Ljubljana, Slovenia
| | - Janko Kos
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia. .,Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia.
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10
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Bafail A, Azizalrahman M, Vilde T, Kishen A, Prakki A. Alternative model for cathepsin K activation in human dentin. Dent Mater 2019; 35:1630-1636. [PMID: 31543377 DOI: 10.1016/j.dental.2019.08.104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/15/2019] [Accepted: 08/22/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To evaluate the protease activity in dentin matrices subjected to lactic acid (LA) in comparison to polyacrylic acid (PAA) challenge model at cathepsin K (CT-K) optimum pH 5.5 to assess effectiveness of inhibitors in dentin collagen degradation. METHODS Dentin disks measuring 0.5mm prepared from human molars were completely demineralized in 10% H3PO4. Demineralized dentin disks were challenged with 0.1M LA, 1.1mM PAA, artificial saliva (AS), or deionized water (C) for 24h or 7-days. Dentin collagen properties were tested by measurement of %dry mass change, and ultimate tensile strength (UTS). Degradation of dentin type I collagen was measured by telopeptide assays measuring the sub-product release of C-terminal cross-linked telopeptides (ICTP) and C-terminal peptide (CTX) in the incubation media in relation to total protein concentration, which correlates with matrix metalloproteinases (MMPs) and CT-K activities. RESULTS Gravimetric analysis showed statistically significant difference between C and other groups (p<0.04) at 24h. LA specimens showed significantly higher weight loss from 24h to 7-days (p=0.02). UTS revealed statistically significant difference between AS and LA at 24h and 7-days. UTS at 24h and 7-days for C and AS had significantly higher mean values compared to LA and PAA. Telopeptide assays reported that CTXtp results showed that LA at 24h had significantly higher mean values compared to C and AS. SIGNIFICANCE LA has the ability to activate endogenous CT-K in dentin as measured by the release of CTX (CT-K specific telopeptide). This LA based model has the potential application for further investigations on the activity and possible inhibitors of CT-K in human dentin.
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Affiliation(s)
- A Bafail
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada; Department of Restorative Dental Sciences, Faculty of Dentistry, Taibah University, Medina, Saudi Arabia
| | - M Azizalrahman
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - T Vilde
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - A Kishen
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - A Prakki
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.
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Szumska J, Batool Z, Al-Hashimi A, Venugopalan V, Skripnik V, Schaschke N, Bogyo M, Brix K. Treatment of rat thyrocytes in vitro with cathepsin B and L inhibitors results in disruption of primary cilia leading to redistribution of the trace amine associated receptor 1 to the endoplasmic reticulum. Biochimie 2019; 166:270-285. [PMID: 31302164 DOI: 10.1016/j.biochi.2019.07.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 07/10/2019] [Indexed: 12/11/2022]
Abstract
Taar1 is a G protein-coupled receptor (GPCR) confined to primary cilia of rodent thyroid epithelial cells. Taar1-deficient mouse thyroid follicles feature luminal accumulation of thyroglobulin suggesting that Taar1 acts as a regulator of extra- and pericellular thyroglobulin processing, which is mediated by cysteine cathepsin proteases present at the apical plasma membrane of rodent thyrocytes. Here, by immunostaining and confocal laser scanning microscopy, we demonstrated co-localization of cathepsin L, but only little cathepsin B, with Taar1 at primary cilia of rat thyrocytes, the FRT cells. Because proteases were shown to affect half-lives of certain receptors, we determined the effect of cathepsin activity inhibition on sub-cellular localization of Taar1 in FRT cells, whereupon Taar1 localization altered such that it was retained in compartments of the secretory pathway. Since the same effect on Taar1 localization was observed in both cathepsin B and L inhibitor-treated cells, the interaction of cathepsin activities and sub-cellular localization of Taar1 was thought to be indirect. Indeed, we observed that cathepsin inhibition resulted in a lack of primary cilia from FRT cells. Next, we proved that primary cilia are a necessity for Taar1 trafficking to reach the plasma membrane of FRT cells, since the disruption of primary cilia by treatment with β-cyclodextrin resulted in Taar1 retention in compartments of the secretory pathway. Furthermore, in less well-polarized rat thyrocytes, namely in FRTL-5 cells lacking primary cilia, Taar1 was mainly confined to the compartments of the secretory pathway. We conclude that Taar1 localization in polarized thyroid epithelial cells requires the presence of primary cilia, which is dependent on the proteolytic activity of cysteine cathepsins B and L.
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Affiliation(s)
- Joanna Szumska
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Zaina Batool
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Alaa Al-Hashimi
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Vaishnavi Venugopalan
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Vladislav Skripnik
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | | | - Matthew Bogyo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Klaudia Brix
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
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12
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Breznik B, Limbaeck Stokin C, Kos J, Khurshed M, Hira VVV, Bošnjak R, Lah TT, Van Noorden CJF. Cysteine cathepsins B, X and K expression in peri-arteriolar glioblastoma stem cell niches. J Mol Histol 2018; 49:481-497. [PMID: 30046941 PMCID: PMC6182580 DOI: 10.1007/s10735-018-9787-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 07/19/2018] [Indexed: 01/09/2023]
Abstract
Glioblastoma (GBM) is the most lethal brain tumor also due to malignant and therapy-resistant GBM stem cells (GSCs) that are localized in protecting hypoxic GSC niches. Some members of the cysteine cathepsin family of proteases have been found to be upregulated in GBM. Cathepsin K gene expression is highly elevated in GBM tissue versus normal brain and it has been suggested to regulate GSC migration out of the niches. Here, we investigated the cellular distribution of cathepsins B, X and K in GBM tissue and whether these cathepsins are co-localized in GSC niches. Therefore, we determined expression of these cathepsins in serial paraffin sections of 14 human GBM samples and serial cryostat sections of two samples using immunohistochemistry and metabolic mapping of cathepsin activity using selective fluorogenic substrates. We detected cathepsins B, X and K in peri-arteriolar GSC niches in 9 out of 16 GBM samples, which were defined by co-expression of the GSC marker CD133, the niche marker stromal-derived factor-1α (SDF-1α) and smooth muscle actin as a marker for arterioles. The expression of cathepsin B and X was detected in stromal cells and cancer cells throughout the GBM sections, whereas cathepsin K expression was more restricted to arteriole-rich regions in the GBM sections. Metabolic mapping showed that cathepsin B, but not cathepsin K is active in GSC niches. On the basis of these findings, it is concluded that cathepsins B, X and K have distinct functions in GBM and that cathepsin K is the most likely GSC niche-related cathepsin of the three cathepsins investigated.
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Affiliation(s)
- Barbara Breznik
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia. .,International Postgraduate School Jozef Stefan, Jamova 39, 1000, Ljubljana, Slovenia.
| | - Clara Limbaeck Stokin
- Institute of Pathology, Faculty of Medicine, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Janko Kos
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, 7 Aškerčeva cesta, 1000, Ljubljana, Slovenia
| | - Mohammed Khurshed
- Cancer Center Amsterdam, Department of Medical Biology at the Academic Medical Center, Amsterdam UMC, Meibergdreef 15, 1105 AZ, Amsterdam, The Netherlands
| | - Vashendriya V V Hira
- Cancer Center Amsterdam, Department of Medical Biology at the Academic Medical Center, Amsterdam UMC, Meibergdreef 15, 1105 AZ, Amsterdam, The Netherlands
| | - Roman Bošnjak
- Department of Neurosurgery, University Clinical Centre Ljubljana, Zaloška cesta 7, 1000, Ljubljana, Slovenia
| | - Tamara T Lah
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia.,International Postgraduate School Jozef Stefan, Jamova 39, 1000, Ljubljana, Slovenia
| | - Cornelis J F Van Noorden
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia.,Cancer Center Amsterdam, Department of Medical Biology at the Academic Medical Center, Amsterdam UMC, Meibergdreef 15, 1105 AZ, Amsterdam, The Netherlands
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Pogorzelska A, Żołnowska B, Bartoszewski R. Cysteine cathepsins as a prospective target for anticancer therapies-current progress and prospects. Biochimie 2018; 151:85-106. [PMID: 29870804 DOI: 10.1016/j.biochi.2018.05.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 05/31/2018] [Indexed: 02/08/2023]
Abstract
Cysteine cathepsins (CTS), being involved in both physiological and pathological processes, play an important role in the human body. During the last 30 years, it has been shown that CTS are highly upregulated in a wide variety of cancer types although they have received a little attention as a potential therapeutic target as compared to serine or metalloproteinases. Studies on the increasing problem of neoplastic progression have revealed that secretion of cell-surface- and intracellular cysteine proteases is aberrant in tumor cells and has an impact on their growth, invasion, and metastasis by taking part in tumor angiogenesis, in apoptosis, and in events of inflammatory and immune responses. Considering the role of CTS in carcinogenesis, inhibition of these enzymes becomes an attractive strategy for cancer therapy. The downregulation of natural CTS inhibitors (CTSsis), such as cystatins, observed in various types of cancer, supports this claim. The intention of this review is to highlight the relationship of CTS with cancer and to present illustrations that explain how some of their inhibitors affect processes related to neoplastic progression.
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Uhlman A, Folkers K, Liston J, Pancholi H, Hinton A. Effects of Vacuolar H +-ATPase Inhibition on Activation of Cathepsin B and Cathepsin L Secreted from MDA-MB231 Breast Cancer Cells. Cancer Microenviron 2017; 10:49-56. [PMID: 28766149 PMCID: PMC5750200 DOI: 10.1007/s12307-017-0196-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/24/2017] [Indexed: 02/07/2023]
Abstract
Studies indicate secreted cathepsins are involved in metastasis. V-ATPases, which are necessary for activating intracellular cathepsins, also play a role in metastasis and are targeted to the plasma membrane of metastatic breast cancer cells. We are interested in a connection between cell surface V-ATPases, activation of secreted cathepsins and the metastatic phenotype of MDA-MB231 cells. We investigated whether V-ATPase inhibition would reduce the activity of secreted cathepsin B and cathepsin L. Using cell lysates and conditioned media, we measured cathepsin B and L activity within and outside of the cells. We found different forms of cathepsin B and L were secreted representing the pre-pro, pro and active forms of the proteases. Cathepsin B activity was higher than cathepsin L in conditioned media and in cell lysates. V-ATPase inhibition by concanamycin A decreased cathepsin B activity in conditioned media and significantly decreased cathepsin B activity in cell lysates. Cathepsin L activity showed a slight decrease in cell lysates. Changes in the activity of secreted and intracellular cathepsins following V-ATPase inhibition were supported by changes in the amounts of pro and active forms of cathepsin B in conditioned media and cathepsins B and L in cell lysates. Overall, our data shows that inactive forms of cathepsins B and L are secreted from the MB231 cells and V-ATPase activity is important for the activation of secreted cathepsin B. This indicates a connection between cell surface V-ATPases in metastatic breast cancer cells and the function of secreted cathepsin B.
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Affiliation(s)
- Andrew Uhlman
- Biology Department, Denison University, 100 W. College St, Granville, OH, 43023, USA
| | - Kelly Folkers
- Biology Department, Denison University, 100 W. College St, Granville, OH, 43023, USA
| | - Jared Liston
- Biology Department, Denison University, 100 W. College St, Granville, OH, 43023, USA
| | - Harshida Pancholi
- Biology Department, Denison University, 100 W. College St, Granville, OH, 43023, USA
| | - Ayana Hinton
- Biology Department, Denison University, 100 W. College St, Granville, OH, 43023, USA.
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Daood D, Yiu CKY, Burrow MF, Niu LN, Tay FR. Effect of a novel quaternary ammonium silane cavity disinfectant on durability of resin-dentine bond. J Dent 2017; 60:77-86. [PMID: 28315376 DOI: 10.1016/j.jdent.2017.03.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/26/2017] [Accepted: 03/05/2017] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE The present study examined the effect of a quaternary ammonium silane (QAS) cavity disinfectant on the viability of human dental pulp cells, dentine bond durability and nanoleakage of simplified etch-and-rinse adhesives. METHODS Etched dentine surface of third molars were randomly divided into two adhesive groups, Adper™ Single Bond 2 and Prime & Bond® NT™. For each adhesive, the teeth were randomly assigned to five cavity disinfectant groups (N=6): Group 1: deionised water (control); Group 2: 2% chlorhexidine (CHX); Group 3: 2% QAS; Group 4: 5% QAS and Group 5: 10% QAS. The cavity disinfectants were applied on etched dentine surfaces for 20s, followed by adhesive application. The bonded teeth were sectioned for bond strength testing at 24h, 6 months and 12 months. Viability of human dental pulpal cells was examined using MTT assay. Bond strength data were analysed using 3-way ANOVA and Tukey test. Interfacial nanoleakage was evaluated after 24h and 12 months and analysed using Kruskal-Wallis test. RESULTS Significant differences in bond strength were observed for the factors disinfectants (p<0.001) and time (p<0.001); while the factor, adhesive, was not significantly different (p=0.203). The 2% QAS cavity disinfectant preserved bond strength of both adhesives and reduced interfacial nanoleakage after 12 months. Cell viability was the lowest for 2% CHX, followed by 2% QAS and the control. CONCLUSIONS The 2% QAS cavity disinfectant demonstrated greater cell viability compared to 2% CHX, with no adverse effect on immediate bond strength and preserved bond stability over time. CLINICAL SIGNIFICANCE Incorporation of 2% quaternary ammonium silane cavity disinfectant in the resin-dentine bonding protocol enhances the success rate of bonded restorations.
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Scaffa PMC, Breschi L, Mazzoni A, Vidal CDMP, Curci R, Apolonio F, Gobbi P, Pashley D, Tjäderhane L, Tersariol ILDS, Nascimento FD, Carrilho MR. Co-distribution of cysteine cathepsins and matrix metalloproteases in human dentin. Arch Oral Biol 2016; 74:101-107. [PMID: 27923176 DOI: 10.1016/j.archoralbio.2016.11.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 10/26/2016] [Accepted: 11/20/2016] [Indexed: 11/19/2022]
Abstract
It has been hypothesized that cysteine cathepsins (CTs) along with matrix metalloproteases (MMPs) may work in conjunction in the proteolysis of mature dentin matrix. The aim of this study was to verify simultaneously the distribution and presence of cathepsins B (CT-B) and K (CT-K) in partially demineralized dentin; and further to evaluate the activity of CTs and MMPs in the same tissue. The distribution of CT-B and CT-K in sound human dentin was assessed by immunohistochemistry. A double-immunolabeling technique was used to identify, at once, the occurrence of those enzymes in dentin. Activities of CTs and MMPs in dentin extracts were evaluated spectrofluorometrically. In addition, in situ gelatinolytic activity of dentin was assayed by zymography. The results revealed the distribution of CT-B and CT-K along the dentin organic matrix and also indicated co-occurrence of MMPs and CTs in that tissue. The enzyme kinetics studies showed proteolytic activity in dentin extracts for both classes of proteases. Furthermore, it was observed that, at least for sound human dentin matrices, the activity of MMPs seems to be predominant over the CTs one.
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Affiliation(s)
- Polliana Mendes Candia Scaffa
- Faculty of Dentistry at Piracicaba, University of Campinas, Piracicaba, 13414-903, Brazil; Department of Biological Science, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, 17012-901, Brazil
| | - Lorenzo Breschi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, 40126, Italy
| | - Annalisa Mazzoni
- Department of Medical Sciences, University of Trieste, Trieste, 34128, Italy
| | - Cristina de Mattos Pimenta Vidal
- Faculty of Dentistry at Piracicaba, University of Campinas, Piracicaba, 13414-903, Brazil; Department of Operative Dentistry, College of Dentistry, University of Iowa, 801 Newton Rd, Iowa City, IA,52246, USA
| | - Rosa Curci
- IGM-CNR, Unit of Bologna c/o IOR, Bologna, 40136, Italy
| | - Fabianni Apolonio
- Department of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, 60020-181, Brazil
| | - Pietro Gobbi
- Department of SteVA, University "Carlo Bo", Urbino, 61029, Italy
| | - David Pashley
- Emeritus Professor of Oral Biology, Dental College of Georgia, Georgia Health Sciences University, Augusta, Georgia, 30912, USA
| | - Leo Tjäderhane
- Institute of Dentistry, University of Oulu, and Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu FI-90014, Finland; Department of Oral and Maxillofacial Diseases, University of Helsinki, and Helsinki University Hospital, Helsinki FI-00014, Finland
| | - Ivarne Luis Dos Santos Tersariol
- Department of Biochemistry, Federal University of São Paulo, São Paulo, 04021-001, Brazil; Centro Interdisciplinar de Investigação Bioquímica, University of Mogi das Cruzes, Mogi das Cruzes, 08773-520, Brazil
| | - Fábio Dupart Nascimento
- Centro Interdisciplinar de Investigação Bioquímica, University of Mogi das Cruzes, Mogi das Cruzes, 08773-520, Brazil
| | - Marcela Rocha Carrilho
- Biomaterials in Dentistry Program, Anhanguera University São Paulo (UNIAN-SP), São Paulo, 05145-200, Brazil; Biotechnology and Innovation in Health Program, Anhanguera University São Paulo (UNIAN-SP), São Paulo, 05145-200, Brazil.
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17
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Seseogullari-Dirihan R, Mutluay MM, Vallittu P, Pashley DH, Tezvergil-Mutluay A. Effect of pretreatment with collagen crosslinkers on dentin protease activity. Dent Mater 2015; 31:941-7. [PMID: 26037790 DOI: 10.1016/j.dental.2015.05.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/07/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVES This study evaluated the effect of dentin pretreatment with collagen crosslinkers on matrix metalloproteinase (MMP) and cathepsin K mediated collagen degradation. METHODS Dentin beams (1mm×2mm×6mm) were demineralized in 10% H3PO4 for 24h. After baseline measurements of dry mass, beams were divided into 11 groups (n=10/group) and, were pretreated for 5min with 1% glutaraldehyde (GA); 5% GA; 1% grape-seed extract (GS); 5% GS; 10% sumac (S); 20μM curcumin (CR); 200μM CR; 0.l% riboflavin/UV (R); 0.5% R; 0.1% riboflavin-5-phosphate/UV (RP); and control (no pretreatment). After pretreatment, the beams were blot-dried and incubated in 1mL calcium and zinc-containing medium (CM, pH 7.2) at 37°C for 3, 7 or 14 days. After incubation, dry mass was reassessed and aliquots of the incubation media were analyzed for collagen C-telopeptides, ICTP and CTX using specific ELISA kits. Data were analyzed by repeated-measures ANOVA. RESULTS The rate of dry mass loss was significantly different among test groups (p<0.05). The lowest 14 day mean dry mass loss was 6.98%±1.99 in the 200μM curcumin group compared to control loss of dry mass at 32.59%±5.62, p<0.05, at 14 days. The ICTP release over the incubation period (ng/mg dry dentin) ranged between 1.8±0.51 and 31.8±1.8. CTX release from demineralized beams pretreated with crosslinkers was significantly lower than CM (5.7±0.2ng/mg dry dentin). SIGNIFICANCE The results of this study indicate that collagen crosslinkers tested in this study are good inhibitors of cathepsin K activity in dentin. However, their inhibitory effect on MMP activity was highly variable.
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Affiliation(s)
- R Seseogullari-Dirihan
- Finnish Doctoral Program in Oral Sciences (FINDOS) University of Turku, Institute of Dentistry, Turku, Finland; Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland.
| | - M M Mutluay
- Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland; Department of Restorative Dentistry and Endodontics, Institute of Dentistry, Turku, Finland
| | - P Vallittu
- Department of Biomaterials University of Turku, Institute of Dentistry, Turku, Finland
| | - D H Pashley
- School of Dentistry, Georgia Regents University, Augusta, GA, USA
| | - A Tezvergil-Mutluay
- Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland; Department of Restorative Dentistry and Endodontics, Institute of Dentistry, Turku, Finland; Turku University Hospital, TYKS, University of Turku, Turku, Finland
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Mei ML, Ito L, Cao Y, Li QL, Chu CH, Lo ECM. The inhibitory effects of silver diamine fluorides on cysteine cathepsins. J Dent 2013; 42:329-35. [PMID: 24316241 DOI: 10.1016/j.jdent.2013.11.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 11/22/2013] [Accepted: 11/26/2013] [Indexed: 10/25/2022] Open
Abstract
AIM The expression of cysteine cathepsins in human carious dentine suggests that this enzyme contributes to the collagen degradation in caries progress. This study investigated whether silver diamine fluoride (SDF) inhibited the activity of cysteine cathepsins. METHODS Three commercial SDF solutions with concentrations at 38%, 30% and 12% were studied. Two fluoride solutions with the same fluoride ion (F(-)) concentrations as the 38% and 12% SDF solutions, and 2 silver solutions with the same silver ion (Ag(+)) concentrations as the 38% and 12% SDF solutions were prepared. Five samples of each experimental solution were used to study their inhibitory effect on two cathepsins (B and K) using cathepsin assay kits. Positive control contained assay buffer and cathepsins dilution was used to calculate the percentage inhibition (difference between the mean readings of the test solution and control solution divided by that of the control group). RESULTS The percentage inhibition of 38%, 30% and 12% SDF on cathepsin B were 92.0%, 91.5% and 90.3%, respectively (p<0.001); on cathepsin K were 80.6%, 78.5% and 77.9%, respectively (p<0.001). Ag(+) exhibited the inhibitory effect against both cathepsin B and K with or without the presence of F(-) (p<0.01). The solutions containing Ag(+) have significantly higher inhibitory effect than the solutions containing F(-) only (p<0.01). CONCLUSION According to this study, SDF solution at all 3 tested concentrations significantly inhibited the activity of cathepsin B and K.
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Affiliation(s)
- May L Mei
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - L Ito
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Y Cao
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region; College of Stomatology, Anhui Medical University, Hefei, PR China
| | - Q L Li
- College of Stomatology, Anhui Medical University, Hefei, PR China
| | - C H Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - Edward C M Lo
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
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Tjäderhane L, Nascimento FD, Breschi L, Mazzoni A, Tersariol IL, Geraldeli S, Tezvergil-Mutluay A, Carrilho M, Carvalho RM, Tay FR, Pashley DH. Strategies to prevent hydrolytic degradation of the hybrid layer-A review. Dent Mater 2013; 29:999-1011. [PMID: 23953737 DOI: 10.1016/j.dental.2013.07.016] [Citation(s) in RCA: 244] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 02/16/2013] [Accepted: 07/17/2013] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Endogenous dentin collagenolytic enzymes, matrix metalloproteinases (MMPs) and cysteine cathepsins, are responsible for the time-dependent hydrolysis of collagen matrix of hybrid layers. As collagen matrix integrity is essential for the preservation of long-term dentin bond strength, inhibition of endogenous dentin proteases is necessary for durable resin-bonded restorations. METHODS Several tentative approaches to prevent enzyme function have been proposed. Some of them have already demonstrated clinical efficacy, while others need to be researched further before clinical protocols can be proposed. This review will examine both the principles and outcomes of techniques to prevent collagen hydrolysis in dentin-resin interfaces. RESULTS Chlorhexidine, a general inhibitor of MMPs and cysteine cathepsins, is the most tested method. In general, these experiments have shown that enzyme inhibition is a promising approach to improve hybrid layer preservation and bond strength durability. Other enzyme inhibitors, e.g. enzyme-inhibiting monomers, may be considered promising alternatives that would allow more simple clinical application than chlorhexidine. Cross-linking collagen and/or dentin matrix-bound enzymes could render hybrid layer organic matrices resistant to degradation. Alternatively, complete removal of water from the hybrid layer with ethanol wet bonding or biomimetic remineralization should eliminate hydrolysis of both collagen and resin components. SIGNIFICANCE Understanding the function of the enzymes responsible for the hydrolysis of hybrid layer collagen has prompted several innovative approaches to retain hybrid layer integrity and strong dentin bonding. The ultimate goal, prevention of collagen matrix degradation with clinically applicable techniques and commercially available materials may be achievable in several ways.
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