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Zhang C, Liu Z, Wang X, Zhang B, Cui L, Hu Q, Hu B, Cao K, Shan W, Shi H, Wang R. Cathepsin K promotes the proliferation of hepatocellular carcinoma cells through induction of SIAH1 ubiquitination and degradation. iScience 2023; 26:106852. [PMID: 37250786 PMCID: PMC10209540 DOI: 10.1016/j.isci.2023.106852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 04/12/2023] [Accepted: 05/05/2023] [Indexed: 05/31/2023] Open
Abstract
Seven in absentia homolog 1 (SIAH1) was reported to be downregulated in hepatocellular carcinoma (HCC) and played an important role in HCC progression; however, the underlying reason remains unknown. Here, we found that Cathepsin K (CTSK), a protein potentially interacting with SIAH1, inhibits SIAH1 protein level. CTSK was highly expressed in HCC tissues. CTSK inhibition or downregulation suppressed HCC cell proliferation, whereas CTSK overexpression had the opposite effect; it promotes HCC cell proliferation by regulating the SIAH1/protein kinase B (AKT) pathway, wherein promotes SIAH1 ubiquitination. Neural precursor cells expressing developmentally downregulated 4 (NEDD4) was found to be a potential upstream ubiquitin ligase of SIAH1. Further, CTSK could mediate SIAH1 ubiquitination and degradation by increasing SIAH1 autoubiquitination and recruiting NEDD4 to ubiquitinate SIAH1. Finally, the roles of CTSK were confirmed in a xenograft mouse model. In conclusion, oncogenic CTSK was upregulated in human HCC tissues and accelerated HCC cell proliferation by downregulating SIAH1.
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Affiliation(s)
- Chengming Zhang
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhiyi Liu
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiaotian Wang
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Bin Zhang
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Licheng Cui
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qinghe Hu
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Bin Hu
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Kuan Cao
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Wengang Shan
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hengliang Shi
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Central Laboratory, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Renhao Wang
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Research Center of Digestive Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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Kawai R, Sugisaki R, Miyamoto Y, Yano F, Sasa K, Minami E, Maki K, Kamijo R. Cathepsin K degrades osteoprotegerin to promote osteoclastogenesis in vitro. In Vitro Cell Dev Biol Anim 2023; 59:10-18. [PMID: 36689044 DOI: 10.1007/s11626-023-00747-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023]
Abstract
Osteoblasts produce the receptor activator of nuclear factor-kappa B ligand (RANKL) and osteoprotegerin, the inducer and the suppressor of osteoclast differentiation and activation. We previously proposed that the degradation of osteoprotegerin by lysine-specific gingipain of Porphyromonas gingivalis and neutrophil elastase is one of the mechanisms of bone resorption associated with infection and inflammation. In the present study, we found that cathepsin K (CTSK) also degraded osteoprotegerin in an acidic milieu and the buffer with a pH of 7.4. The 37 k fragment of osteoprotegerin produced by the reaction with CTSK was further degraded into low molecular weight fragments, including a 13 k fragment, depending on the reaction time. The N-terminal amino acid sequence of the 37 k fragment matched that of the intact osteoprotegerin, indicating that CTSK preferentially hydrolyzes the death domain-like region of osteoprotegerin, not its RANKL-binding region. The 13 k fragment of osteoprotegerin was the C-terminal 13 k portion within the RANKL-binding region of the 37 k fragment. Finally, CTSK restored RANKL-dependent osteoclast differentiation that was suppressed by the addition of osteoprotegerin. Collectively, CTSK is a possible positive regulator of osteoclastogenesis.
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Affiliation(s)
- Ryota Kawai
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.,Department of Orthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Risa Sugisaki
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.,Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yoichi Miyamoto
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan. .,Division of Physiology and Biochemistry, Faculty of Arts and Sciences at Fujiyoshida, Showa University, Fujiyoshida, Japan.
| | - Fumiko Yano
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Kiyohito Sasa
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Erika Minami
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.,Department of Orthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Koutaro Maki
- Department of Orthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Ryutaro Kamijo
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
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3
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The Development of Molecular Biology of Osteoporosis. Int J Mol Sci 2021; 22:ijms22158182. [PMID: 34360948 PMCID: PMC8347149 DOI: 10.3390/ijms22158182] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is one of the major bone disorders that affects both women and men, and causes bone deterioration and bone strength. Bone remodeling maintains bone mass and mineral homeostasis through the balanced action of osteoblasts and osteoclasts, which are responsible for bone formation and bone resorption, respectively. The imbalance in bone remodeling is known to be the main cause of osteoporosis. The imbalance can be the result of the action of various molecules produced by one bone cell that acts on other bone cells and influence cell activity. The understanding of the effect of these molecules on bone can help identify new targets and therapeutics to prevent and treat bone disorders. In this article, we have focused on molecules that are produced by osteoblasts, osteocytes, and osteoclasts and their mechanism of action on these cells. We have also summarized the different pharmacological osteoporosis treatments that target different molecular aspects of these bone cells to minimize osteoporosis.
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Choudhury D, Biswas S. Structure-guided protein engineering of human cathepsin L for efficient collagenolytic activity. Protein Eng Des Sel 2021; 34:6213762. [PMID: 33825882 DOI: 10.1093/protein/gzab005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/21/2021] [Accepted: 02/15/2021] [Indexed: 11/14/2022] Open
Abstract
Engineering precise substrate specificity of proteases advances the potential to use them in biotechnological and therapeutic applications. Collagen degradation, a physiological process mediated by collagenases, is an integral part of extracellular matrix remodeling and when uncontrolled, implicated in different pathological conditions. Lysosomal cathepsin-K cleaves triple helical collagen fiber, whereas cathepsin-L cannot do so. In this study, we have imparted collagenolytic property to cathepsin-L, by systematically engineering proline-specificity and glycosaminoglycans (GAG)-binding surface in the protease. The proline-specific mutant shows high specificity for prolyl-peptidic substrate but is incapable of cleaving collagen. Engineering a GAG-binding surface on the proline-specific mutant enabled it to degrade type-I collagen in the presence of chondroitin-4-sulfate (C4-S). We also present the crystal structures of proline-specific (1.4 Å) and collagen-specific (1.8 Å) mutants. Finally docking studies with prolyl-peptidic substrate (Ala-Gly-Pro-Arg-Ala) at the active site and a C4-S molecule at the GAG-binding site enable us to identify key structural features responsible for collagenolytic activity of cysteine cathepsins.
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Affiliation(s)
- Debi Choudhury
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064, India
| | - Sampa Biswas
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064, India.,Homi Bhaba National Institute, Anushaktinagar, Mumbai 400 094, India
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5
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Liang W, Wang F, Chen Q, Dai J, Escara-Wilke J, Keller ET, Zimmermann J, Hong N, Lu Y, Zhang J. Targeting cathepsin K diminishes prostate cancer establishment and growth in murine bone. J Cancer Res Clin Oncol 2019; 145:1999-2012. [PMID: 31172267 PMCID: PMC6658578 DOI: 10.1007/s00432-019-02950-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 06/01/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND The processes of prostate cancer (PCa) invasion and metastasis are facilitated by proteolytic cascade involving multiple proteases, such as matrix metalloproteinases, serine proteases and cysteine proteases including cathepsin K (CatK). CatK is predominantly secreted by osteoclasts and specifically degrades collagen I leading to bone destruction. PCa and breast cancer preferentially metastasize to the bone. Importantly, CatK expression level is greater in PCa bone metastatic sites compared to primary tumor and normal prostate tissues. However, the underlying mechanism of CatK during PCa metastases into the bone remains to be elucidated. We investigated the functional role of CatK during the PCa establishment and growth process in the murine bone. METHODS CatK mRNA expression was validated by RT-PCR, protein expression by immunoblotting in PCa LNCaP, C4-2B, and PC3 cells as well as in PCa tissues. Its protein production was measured using ELISA assay. The effect of both knockdowns via siRNA and CatK inhibitor was compared in regard to PCa cell invasion. We further studied the dose-dependent CatK inhibitor effect on conditioned media-induced bone resorption. In setting up an animal model, C4-2B cells were injected into the tibiae of SCID mice. The animals treated with either vehicle or CatK inhibitor for 8 weeks at the time of tumor cell injection (tumor establishment model; protocol I) or 4 weeks after tumor cell injection (tumor progression model; protocol II) were applied to histological and histomorphometric analyses. RESULTS We confirmed CatK expression in PCa LNCaP, C4-2B, and PC3 cells as well as in PCa tissues. Furthermore, we observed the inhibitory effects of a selective CatK inhibitor on PCa cell invasion. The CatK inhibitor dose-dependently inhibited PCa-conditioned media-induced bone resorption. Upon injection of C4-2B cells into the tibiae of SCID mice, the selective CatK inhibitor significantly prevented the tumor establishment in protocol I, and reduced the tumor growth in bone in protocol II. It also decreased serum PSA levels in both animal models. The inhibitory effects of the CatK inhibitor were enhanced in combination with zoledronic acid (ZA). CONCLUSION The selective CatK inhibitor may prevent the establishment and progression of PCa in bone, thus making it a novel therapeutic approach for advanced PCa.
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Affiliation(s)
- Weiping Liang
- Key Laboratory of Longevity and Aging-Related Diseases, Guangxi Medical University, Ministry of Education, Nanning, 530021, Guangxi, China
| | - Fuhao Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.,Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen, 518055, Guangdong, China
| | - Qiuyan Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Jinlu Dai
- Department of Pathology and Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - June Escara-Wilke
- Department of Pathology and Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Evan T Keller
- Department of Pathology and Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Johann Zimmermann
- Novartis Pharma Ltd., Basel, Switzerland.,Polyphor Ltd, Hegenheimermattweg 125, 4123, Allschwil, Switzerland
| | - Ni Hong
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Yi Lu
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China. .,Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen, 518055, Guangdong, China.
| | - Jian Zhang
- Key Laboratory of Longevity and Aging-Related Diseases, Guangxi Medical University, Ministry of Education, Nanning, 530021, Guangxi, China. .,School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China. .,Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen, 518055, Guangdong, China. .,Department of Urology, University of Pittsburgh, Pittsburgh, PA, 15240, USA.
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6
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Li J, Guo X, Li M, Xiao Y, Bao C. [Research progress in the mechanism of protein factors in regulating bone remodeling]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2019; 33:115-123. [PMID: 30644271 DOI: 10.7507/1002-1892.201808059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To review the role and mechanism of protein factors in bone remodeling, and provides theoretical basis for further elucidating the pathogenesis and clinical treatment of bone-related diseases. Methods The relevant research results at home and abroad in recent years were extensively consulted, analyzed, and summarized. Results Bone remodeling is an important physiological process to maintain bone homeostasis. Protein, as an important stimulator in bone remodeling, regulates the balance between bone resorption and bone formation. Conclusion At present, the research on the mechanism of protein in bone remodeling is insufficient. Therefore, it is necessary to further study the specific time, process, and interaction network of protein in bone remodeling, and to confirm its mechanism in bone remodeling, so as to reveal and treat the pathogenesis of bone-related diseases.
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Affiliation(s)
- Ju Li
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China;National Clinical Research Center of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Xiaodong Guo
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China;National Clinical Research Center of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Mingzheng Li
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China;National Clinical Research Center of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China;Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Yu Xiao
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China;National Clinical Research Center of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041,
| | - Chongyun Bao
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu Sichuan, 610041, P.R.China;Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu Sichuan, 610041,
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7
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Tatara Y, Suto S, Itoh K. Novel roles of glycosaminoglycans in the degradation of type I collagen by cathepsin K. Glycobiology 2017; 27:1089-1098. [DOI: 10.1093/glycob/cwx083] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 10/02/2017] [Indexed: 11/14/2022] Open
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8
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Gu LS, Huang XQ, Griffin B, Bergeron BR, Pashley DH, Niu LN, Tay FR. Primum non nocere - The effects of sodium hypochlorite on dentin as used in endodontics. Acta Biomater 2017; 61:144-156. [PMID: 28801267 DOI: 10.1016/j.actbio.2017.08.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/28/2017] [Accepted: 08/07/2017] [Indexed: 10/19/2022]
Abstract
The medical literature is replete with the maxim 'primum non nocere', cautioning health care providers to avoid doing any harm to human subjects in their delivery of medical care. Sodium hypochlorite (NaOCl) is a well-established irrigant for root canal treatment because of its antimicrobial and organic tissue remnant dissolution capability. However, little is known about the deleterious effect of this strong oxidizing agent on the integrity of human mineralized dentin. Iatrogenically-induced loss of dentin integrity may precipitate post-treatment root fracture and has potential medico-legal complications. In the present work, transmission electron microscopy provided evidence for collagen destruction in the surface/subsurface of dentin treated with high NaOCl concentrations and long contact times. Size exclusion chromatography showed that the hypochlorite anion, because of its small size, penetrated the water compartments of apatite-encapsulated collagen fibrils, degraded the collagen molecules and produced a 25-35µm thick, non-uniform "ghost mineral layer" with enlarged, coalesced dentinal tubules and their lateral branches. Fourier transform-infrared spectroscopy identified increases in apatite/collagen ratio in NaOCl-treated dentin. The apatite-rich, collagen-sparse dentin matrix that remained after NaOCl treatment is more brittle, as shown by the reductions in flexural strength. Understanding the deleterious effects of NaOCl on mineralized dentin enables one to balance the risks and benefits in using high NaOCl concentrations for lengthy periods in root canal debridement. Delineating the mechanism responsible for such a phenomenon enables high molecular weight, polymeric antimicrobial and tissue dissolution irrigants to be designed that abides by the maxim of 'primum non nocere' in contemporary medical practices. STATEMENT OF SIGNIFICANCE The antimicrobial and tissue-dissolution capacities of NaOCl render it a well-accepted agent for root canal debridement. These highly desirable properties, however, appear to be intertwined with the untoward effect of collagen matrix degradation within mineralized dentin. Because of its small size, the hypochlorite anion is capable of infiltrating mineralized collagen and destroying the collagen fibrils, producing a mineral-rich, collagen sparse ghost mineral matrix with reduced flexural strength. Findings from the present work challenge the biosafety of NaOCl when it is used in high concentrations and for lengthy time periods during root canal treatment, and laid the background work for future biomaterials design in debridement of the canal space.
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9
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Novinec M, Rebernik M, Lenarčič B. An allosteric site enables fine-tuning of cathepsin K by diverse effectors. FEBS Lett 2016; 590:4507-4518. [DOI: 10.1002/1873-3468.12495] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/14/2016] [Accepted: 11/11/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Marko Novinec
- Department of Chemistry and Biochemistry; Faculty of Chemistry and Chemical Technology; University of Ljubljana; Slovenia
| | - Mateja Rebernik
- Department of Chemistry and Biochemistry; Faculty of Chemistry and Chemical Technology; University of Ljubljana; Slovenia
| | - Brigita Lenarčič
- Department of Chemistry and Biochemistry; Faculty of Chemistry and Chemical Technology; University of Ljubljana; Slovenia
- Department of Biochemistry and Molecular and Structural Biology; Jožef Stefan Institute; Ljubljana Slovenia
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10
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Cavalier E, Bergmann P, Bruyère O, Delanaye P, Durnez A, Devogelaer JP, Ferrari SL, Gielen E, Goemaere S, Kaufman JM, Toukap AN, Reginster JY, Rousseau AF, Rozenberg S, Scheen AJ, Body JJ. The role of biochemical of bone turnover markers in osteoporosis and metabolic bone disease: a consensus paper of the Belgian Bone Club. Osteoporos Int 2016; 27:2181-2195. [PMID: 27026330 DOI: 10.1007/s00198-016-3561-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 03/03/2016] [Indexed: 01/22/2023]
Abstract
The exact role of biochemical markers of bone turnover in the management of metabolic bone diseases remains a topic of controversy. In this consensus paper, the Belgian Bone Club aimed to provide a state of the art on the use of these biomarkers in different clinical or physiological situations like in postmenopausal women, osteoporosis in men, in elderly patients, in patients suffering from bone metastasis, in patients with chronic renal failure, in pregnant or lactating women, in intensive care patients, and in diabetics. We also gave our considerations on the analytical issues linked to the use of these biomarkers, on potential new emerging biomarkers, and on the use of bone turnover biomarkers in the follow-up of patients treated with new drugs for osteoporosis.
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Affiliation(s)
- E Cavalier
- Department of Clinical Chemistry, UnilabLg, CIRM, University of Liège, CHU de Liège, Domaine du Sart-Tilman, 4000, Liège, Belgium.
| | - P Bergmann
- Department of Radioisotopes, CHU Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - O Bruyère
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - P Delanaye
- Department of Nephrology Dialysis Transplantation, University of Liège, CHU de Liège, Liège, Belgium
| | - A Durnez
- Pôle de Pathologie Rhumatismale, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - J-P Devogelaer
- Pôle de Pathologie Rhumatismale, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - S L Ferrari
- Department of Bone Diseases, Hôpitaux Universitaires Genève, Geneva, Switzerland
| | - E Gielen
- Gerontology and Geriatrics Section, Department of Clinical and Experimental Medicine, K.U. Leuven, Leuven, Belgium
| | - S Goemaere
- Unit for Osteoporosis and Metabolic Bone Diseases, Ghent University Hospital, Ghent, Belgium
| | - J-M Kaufman
- Department of Endocrinology and Unit for Osteoporosis and Metabolic Bone Diseases, Ghent University Hospital, Ghent, Belgium
- Centre Académique de Recherche et d'Expérimentation en Santé SPRL (CARES SPRL), Liège, Belgium
| | - A Nzeusseu Toukap
- Pôle de Pathologie Rhumatismale, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - J-Y Reginster
- Centre Académique de Recherche et d'Expérimentation en Santé SPRL (CARES SPRL), Liège, Belgium
| | - A-F Rousseau
- Burn Centre and General Intensive Care Department, University of Liège, CHU de Liège, Liège, Belgium
| | - S Rozenberg
- Department of Gynaecology-Obstetrics, Université Libre de Bruxelles, Brussels, Belgium
| | - A J Scheen
- Division of Diabetes, Nutrition and Metabolic Disorders, University of Liège CHU de Liège, Liège, Belgium
| | - J-J Body
- Department of Medicine, CHU Brugmann, Université Libre de Bruxelles, Brussels, Belgium
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11
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Li Z, Li C, Zhou Y, Chen W, Luo G, Zhang Z, Wang H, Zhang Y, Xu D, Sheng P. Advanced glycation end products biphasically modulate bone resorption in osteoclast-like cells. Am J Physiol Endocrinol Metab 2016; 310:E355-66. [PMID: 26670486 DOI: 10.1152/ajpendo.00309.2015] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 12/14/2015] [Indexed: 01/22/2023]
Abstract
Advanced glycation end products (AGEs) disturb bone remodeling during aging, and this process is accelerated in diabetes. However, their role in modulation of osteoclast-induced bone resorption is controversial, with some studies indicating that AGEs enhance bone resorption and others showing the opposite effect. We determined whether AGEs present at different stages of osteoclast differentiation affect bone resorption differently. Based on increased levels of tartrate-resistant acid phosphatase (TRAP) and cathepsin K (CTSK), we identified day 4 of induction as the dividing time of cell fusion stage and mature stage in RAW264.7 cell-derived osteoclast-like cells (OCLs). AGE-modified BSA (50-400 μg/ml) or control BSA (100 μg/ml) was then added at the beginning of each stage. Results showed that the presence of AGEs at the cell fusion stage reduced pit numbers, resorption area, and CTSK expression. Moreover, expression of receptor activator of nuclear factor-κB (RANK) as well as the number of TRAP-positive cells, nuclei per OCL, actin rings, and podosomes also decreased. However, the presence of AGEs at the mature stage enlarged the resorption area markedly and increased pit numbers slightly. Intriguingly, only the number of nuclei per OCL and podosomes increased. These data indicate that AGEs biphasically modulate bone resorption activity of OCLs in a differentiation stage-dependent manner. AGEs at the cell fusion stage reduce bone resorption dramatically, mainly via suppression of RANK expression in osteoclast precursors, whereas AGEs at the mature stage enhance bone resorption slightly, most likely by increasing the number of podosomes in mature OCLs.
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Affiliation(s)
- Ziqing Li
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Chaohong Li
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yuhuan Zhou
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Weishen Chen
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Guotian Luo
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Ziji Zhang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Haixing Wang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Yangchun Zhang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Dongliang Xu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
| | - Puyi Sheng
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; and
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12
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Adhyatmika A, Putri KSS, Beljaars L, Melgert BN. The Elusive Antifibrotic Macrophage. Front Med (Lausanne) 2015; 2:81. [PMID: 26618160 PMCID: PMC4643133 DOI: 10.3389/fmed.2015.00081] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 10/29/2015] [Indexed: 12/23/2022] Open
Abstract
Fibrotic diseases, especially of the liver, the cardiovascular system, the kidneys, and the lungs, account for approximately 45% of deaths in Western societies. Fibrosis is a serious complication associated with aging and/or chronic inflammation or injury and cannot be treated effectively yet. It is characterized by excessive deposition of extracellular matrix (ECM) proteins by myofibroblasts and impaired degradation by macrophages. This ultimately destroys the normal structure of an organ, which leads to loss of function. Most efforts to develop drugs have focused on inhibiting ECM production by myofibroblasts and have not yielded many effective drugs yet. Another option is to stimulate the cells that are responsible for degradation and uptake of excess ECM, i.e., antifibrotic macrophages. However, macrophages are plastic cells that have many faces in fibrosis, including profibrotic behavior-stimulating ECM production. This can be dependent on their origin, as the different organs have tissue-resident macrophages with different origins and a various influx of incoming monocytes in steady-state conditions and during fibrosis. To be able to pharmacologically stimulate the right kind of behavior in fibrosis, a thorough characterization of antifibrotic macrophages is necessary, as well as an understanding of the signals they need to degrade ECM. In this review, we will summarize the current state of the art regarding the antifibrotic macrophage phenotype and the signals that stimulate its behavior.
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Affiliation(s)
- Adhyatmika Adhyatmika
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy (GRIP), University of Groningen , Groningen , Netherlands
| | - Kurnia S S Putri
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy (GRIP), University of Groningen , Groningen , Netherlands ; Department of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute for Pharmacy (GRIP), University of Groningen , Groningen , Netherlands ; Faculty of Pharmacy, University of Indonesia , Depok , Indonesia
| | - Leonie Beljaars
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy (GRIP), University of Groningen , Groningen , Netherlands
| | - Barbro N Melgert
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy (GRIP), University of Groningen , Groningen , Netherlands ; GRIAC Research Institute, University Medical Center Groningen, University of Groningen , Groningen , Netherlands
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13
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Garnero P. The Role of Collagen Organization on the Properties of Bone. Calcif Tissue Int 2015; 97:229-40. [PMID: 25894071 DOI: 10.1007/s00223-015-9996-2] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 04/07/2015] [Indexed: 02/07/2023]
Abstract
Bone is a complex tissue constituted by a collagen matrix filled in with crystal of hydroxyapatite (HAP). Bone mechanical properties are influenced by the collagen matrix which is organized into hierarchical structures from the individual type I collagen heterotrimer flanked by linear telopeptides at each end to the collagen fibrils that are interconnected by enzymatic and non-enzymatic cross-links. Although most studies focused on the role of collagen cross-links in bone strength, other organizational features may also play a role. At the molecular level it has been shown that homotrimer of type I collagen found in bone tissue of some patients with osteogenesis imperfecta (OI) is characterized by decreased mechanical competence compared to the regular heterotrimer. The state of C-telopeptide isomerization-which can be estimated by the measurement in body fluids of the native and isomerized isoforms-has also been shown to be associated with bone strength, particularly the post-yield properties independent of bone size and bone mineral density. Other higher hierarchical features of collagen organization have shown to be associated with changes in bone mechanical behavior in ex vivo models and may also be relevant to explain bone fragility in diseases characterized by collagen abnormalities e.g., OI and Paget's disease. These include the orientation of collagen fibrils in a regular longitudinal direction, the D-spacing period between collagen fibrils and the collagen-HAP interfacial bonding. Preliminary data indicate that some of these organizational features can change during treatment with bisphosphonate, raloxifene, and PTH suggesting that they may contribute to their anti-fracture efficacy. It remains however to be determined which of these parameters play a specific and independent role in bone matrix properties, what is the magnitude of mechanical strength explained by collagen organization, whether they are relevant to explain osteoporosis-induced bone fragility, and how they could be monitored non-invasively to develop efficient bone quality biomarkers.
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Cysteine cathepsin activity regulation by glycosaminoglycans. BIOMED RESEARCH INTERNATIONAL 2014; 2014:309718. [PMID: 25587532 PMCID: PMC4283429 DOI: 10.1155/2014/309718] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 07/02/2014] [Indexed: 11/26/2022]
Abstract
Cysteine cathepsins are a group of enzymes normally found in the endolysosomes where they are primarily involved in intracellular protein turnover but also have a critical role in MHC II-mediated antigen processing and presentation. However, in a number of pathologies cysteine cathepsins were found to be heavily upregulated and secreted into extracellular milieu, where they were found to degrade a number of extracellular proteins. A major role in modulating cathepsin activities play glycosaminoglycans, which were found not only to facilitate their autocatalytic activation including at neutral pH, but also to critically modulate their activities such as in the case of the collagenolytic activity of cathepsin K. The interaction between cathepsins and glycosaminoglycans will be discussed in more detail.
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15
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Lemaire PA, Huang L, Zhuo Y, Lu J, Bahnck C, Stachel SJ, Carroll SS, Duong LT. Chondroitin sulfate promotes activation of cathepsin K. J Biol Chem 2014; 289:21562-72. [PMID: 24958728 DOI: 10.1074/jbc.m114.559898] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cathepsin K (CatK), a major lysosomal collagenase produced by osteoclasts, plays an important role in bone resorption. Evidence exists that the collagenase activity of CatK is promoted by chondroitin sulfate (CS), a sulfated glycosaminoglycan. This study examines the role of CS in facilitating CatK activation. We have demonstrated that chondroitin 4-sulfate (C4-S) promotes autoprocessing of the pro-domain of CatK at pH ≤ 5, leading to a fully matured enzyme with collagenase and peptidase activities. We present evidence to demonstrate this autoactivation process is a trans-activation event that is efficiently inhibited by both the covalent cysteine protease inhibitor E-64 and the reversible selective CatK inhibitor L-006,235. During bone resorption, CatK and C4-S are co-localized at the ruffled border between osteoclast bone interface, supporting the proposal that CatK activation is accomplished through the combined action of the acidic environment together with the presence of a high concentration of C4-S. Formation of a multimeric complex between C4-S and pro-CatK has been speculated to accelerate CatK autoactivation and promote efficient collagen degradation. Together, these results demonstrate that CS plays an important role in contributing to the enhanced efficiency of CatK collagenase activity in vivo.
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Affiliation(s)
| | | | | | - Jun Lu
- Structural Chemistry, and
| | | | - Shawn J Stachel
- Medicinal Chemistry, Merck Research Laboratories, West Point, Pennsylvania 19486
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Søe K, Merrild DMH, Delaissé JM. Steering the osteoclast through the demineralization-collagenolysis balance. Bone 2013; 56:191-8. [PMID: 23777960 DOI: 10.1016/j.bone.2013.06.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Revised: 06/05/2013] [Accepted: 06/08/2013] [Indexed: 11/17/2022]
Abstract
There is a lot of interest for how and how much osteoclasts resorb bone. However, little is known about the mechanism which controls the orientation and the duration of a resorptive event, thereby determining the specific geometry of a cavitation. Here we show that the relative rate of collagenolysis vs. demineralization plays a critical role in this process. First we observed that when culturing osteoclasts on bone slices, excavations appeared either as round pits containing demineralized collagen, or as elongated trenches without demineralized collagen. This suggests that round pits are generated when collagen degradation is slower than demineralization, and trenches when collagen degradation is as fast as demineralization. Next we treated the osteoclasts with a low dose of a carbonic anhydrase inhibitor to slightly decrease the rate of demineralization, thereby allowing collagen degradation to proceed as fast as demineralization. This resulted in about a two-fold increase of the proportion of trenches, thus supporting our hypothesis. The same result was obtained if facilitating collagen degradation by pre-treating the bone slices with NaOCl. In contrast, when decreasing the rate of collagenolysis vs. demineralization by the addition of a cathepsin K specific inhibitor, the proportion of trenches fell close to 0%, and furthermore the round pits became almost half as deep. These observations lead to a model where the osteoclast resorption route starts perpendicularly to the bone surface, forming a pit, and continues parallel to the bone surface, forming a trench. Importantly, we show that the progress of the osteoclast along this route depends on the balance between the rate of collagenolysis and demineralization. We propose that the osteocytes and bone lining cells surrounding the osteoclast may act on this balance to steer the osteoclast resorptive activity in order to give the excavations a specific shape.
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Affiliation(s)
- Kent Søe
- Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Kabbeltoft 25, 7100 Vejle, Denmark.
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Garnero P. The contribution of collagen crosslinks to bone strength. BONEKEY REPORTS 2012; 1:182. [PMID: 24363926 DOI: 10.1038/bonekey.2012.182] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 08/14/2012] [Indexed: 12/30/2022]
Abstract
Collagen crosslinking is a major post-translational modification of collagen which has important roles in determining the biomechanical competence of bone. Crosslinks can be divided into enzymatic lysil oxidase-mediated and non-enzymatic glycation-induced (advanced glycation end products, AGE) molecules. In addition, collagen in bone can also undergo spontaneous isomerization and racemization of the aspartic acid residues with the C-telopeptide (CTX), leading to the formation of two isomers namely α (newly formed collagen) and β (matured isomerized collagen) CTX. Several in vitro and ex vivo studies, relating the bone content of these crosslinks with bone strength, have shown that they contributed to the mechanical competence of trabecular and cortical bone-mainly on the post-yield properties-in part independent of the bone mineral content. In addition, AGEs such as pentosidine have been reported to alter the formation and propagation of microdamage by making the bone more brittle. The bone content of AGEs and isomerization can also be modified by antiresorptive and anabolic therapies. They may thus explain part of the antifracture efficacy of these treatments. The main challenge consists in the transposition of these in vitro/ex vivo studies to clinical applications for the development of a non-invasive biomarker, as none of currently identified collagen crosslinks (both enzymatic and nonenzymatic) is bone specific. Nevertheless, serum or urine levels of pentosidine and the ratio of α/β CTX have been reported to predict fracture risk in postmenopausal women, in men and in patients with type 2 diabetes.
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Affiliation(s)
- Patrick Garnero
- INSERM Unit 1033 , Lyon, France . ; Cisbio Bioassays , Codolet, France
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