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Cystatin M/E (Cystatin 6): A Janus-Faced Cysteine Protease Inhibitor with Both Tumor-Suppressing and Tumor-Promoting Functions. Cancers (Basel) 2021; 13:cancers13081877. [PMID: 33919854 PMCID: PMC8070812 DOI: 10.3390/cancers13081877] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 01/08/2023] Open
Abstract
Alongside its contribution in maintaining skin homeostasis and its probable involvement in fetal and placental development, cystatin M/E (also known as cystatin 6) was first described as a tumor suppressor of breast cancer. This review aims to provide an update on cystatin M/E with particular attention paid to its role during tumorigenesis. Cystatin M/E, which is related to type 2 cystatins, displays the unique property of being a dual tight-binding inhibitor of both legumain (also known as asparagine endopeptidase) and cysteine cathepsins L, V and B, while its expression level is epigenetically regulated via the methylation of the CST6 promoter region. The tumor-suppressing role of cystatin M/E was further reported in melanoma, cervical, brain, prostate, gastric and renal cancers, and cystatin M/E was proposed as a biomarker of prognostic significance. Contrariwise, cystatin M/E could have an antagonistic function, acting as a tumor promoter (e.g., oral, pancreatic cancer, thyroid and hepatocellular carcinoma). Taking into account these apparently divergent functions, there is an urgent need to decipher the molecular and cellular regulatory mechanisms of the expression and activity of cystatin M/E associated with the safeguarding homeostasis of the proteolytic balance as well as its imbalance in cancer.
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Leto G, Sepporta MV. The potential of cystatin C as a predictive biomarker in breast cancer. Expert Rev Anticancer Ther 2020; 20:1049-1056. [PMID: 32990495 DOI: 10.1080/14737140.2020.1829481] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Breast cancer (BCa) is the leading cause of cancer-related deaths among women. Numerous efforts are being directed toward identifying novel tissue and/or circulating molecular markers that may help clinicians in detecting early-stage BCa patients and in providing an accurate estimation of the prognosis and prediction of response to clinical treatments. In this setting, emerging evidence has indicated Cystatin C (Cyst C), as the most potent endogenous inhibitor of cysteine cathepsins, as a possible useful marker in the clinical management of BCa patients. AREAS COVERED This review analyzes the results of emerging studies underpinning a potential clinical role of Cyst C, as additional marker in BCa. EXPERT OPINION Cyst C expression levels have been reported to be altered in tumor tissues and/or in biological fluids of BCa patients. Furthermore, clinical evidence has highlighted a significant correlation between altered Cyst C levels in tumor tissues and/or biological fluids and some clinco-biological parameters of BCa progression. These findings provide evidence for a potential clinical use of Cyst C as a novel marker to improve the clinical and therapeutic management of BCa patients and as a gauge for better clarifying the role of cysteine proteinases in the various steps of BCa progression.
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Affiliation(s)
- Gaetano Leto
- Laboratory of Experimental Pharmacology, Department of Health Promotion Sciences, School of Medicine, University of Palermo , Palermo, Italy
| | - Maria Vittoria Sepporta
- Pediatric Unit, Department Women-Mother-Children, Pediatric Hematology-Oncology Research Laboratory, Lausanne University Hospital , Lausanne, Switzerland
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Rudzińska M, Parodi A, Soond SM, Vinarov AZ, Korolev DO, Morozov AO, Daglioglu C, Tutar Y, Zamyatnin AA. The Role of Cysteine Cathepsins in Cancer Progression and Drug Resistance. Int J Mol Sci 2019; 20:E3602. [PMID: 31340550 PMCID: PMC6678516 DOI: 10.3390/ijms20143602] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/17/2019] [Accepted: 07/19/2019] [Indexed: 12/21/2022] Open
Abstract
Cysteine cathepsins are lysosomal enzymes belonging to the papain family. Their expression is misregulated in a wide variety of tumors, and ample data prove their involvement in cancer progression, angiogenesis, metastasis, and in the occurrence of drug resistance. However, while their overexpression is usually associated with highly aggressive tumor phenotypes, their mechanistic role in cancer progression is still to be determined to develop new therapeutic strategies. In this review, we highlight the literature related to the role of the cysteine cathepsins in cancer biology, with particular emphasis on their input into tumor biology.
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Affiliation(s)
- Magdalena Rudzińska
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Alessandro Parodi
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Surinder M Soond
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Andrey Z Vinarov
- Institute for Urology and Reproductive Health, Sechenov University, 119992 Moscow, Russia
| | - Dmitry O Korolev
- Institute for Urology and Reproductive Health, Sechenov University, 119992 Moscow, Russia
| | - Andrey O Morozov
- Institute for Urology and Reproductive Health, Sechenov University, 119992 Moscow, Russia
| | - Cenk Daglioglu
- Izmir Institute of Technology, Faculty of Science, Department of Molecular Biology and Genetics, 35430 Urla/Izmir, Turkey
| | - Yusuf Tutar
- Faculty of Pharmacy, University of Health Sciences, 34668 Istanbul, Turkey
| | - Andrey A Zamyatnin
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia.
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia.
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Kwon WS, Kim TS, Nahm CH, Moon Y, Kim JJ. Aberrant cystatin-C expression in blood from patients with breast cancer is a suitable marker for monitoring tumor burden. Oncol Lett 2018; 16:5583-5590. [PMID: 30344712 PMCID: PMC6176264 DOI: 10.3892/ol.2018.9380] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 03/30/2017] [Indexed: 01/05/2023] Open
Abstract
The present study was performed to evaluate the efficacy of circulating cystatin-C as a tumor monitoring biomarker at different clinical time points in patients with breast cancer over a long-term follow-up period. In addition, the secretory rate of circulating cystatin-C from cancer tissue was investigated by comparing the blood and tissue expression levels of cystatin-C. Blood samples from healthy volunteers (40 males and 40 females) were obtained at yearly health examinations if laboratory and imaging abnormalities were not detected. Blood samples from 34 patients with breast cancer were obtained at 205 different time points of clinical progression. Blood levels of cystatin-C were measured using ELISA and the tissue levels were measured using immunohistochemistry. No age-associated effect was observed in male and female blood cystatin-C levels. The positivity rate was 46% in patients (38/83) and 40% in samples collected at different time points (82/205). Blood cystatin-C levels were lowest following surgery compared with patients with systemic metastasis (P<0.001). The sensitivity, specificity and accuracy rates of ELISA were 53.6, 63.6 and 53.9%, respectively. The concordance rate between blood and tissue expression was 38%. The main reason for discordance between tissue and serum expression of cytostatin-C came from low serum positivity in samples showing tissue cytostatin-C (3/11, 27%). The specificity between cytostatin-C and CA-125 was highest in tumor absence state. In conclusion, elevated blood levels of cystatin-C were observed in 40% of breast cancer cases and were tumor-volume dependent. However, the concordance rate between tissue and blood was quite low, suggesting tumor heterogeneity of cystatin-C expression or co-acting pathway activation, such as cathepsin D. As one-third of breast cancer tissues express cystatin-C without cancer antigen 15-3 elevation, cystatin-C may represent a good tumor-monitoring marker in breast cancer.
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Affiliation(s)
- Woo Sun Kwon
- Song-Dang Institute for Cancer Research, Cancer Metastasis Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Tae Soo Kim
- Song-Dang Institute for Cancer Research, Cancer Metastasis Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Chung Hyun Nahm
- Department of Laboratory Medicine, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Yeonsook Moon
- Department of Laboratory Medicine, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Jin Ju Kim
- Department of Laboratory Medicine, Inha University College of Medicine, Incheon 22332, Republic of Korea
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5
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Leto G, Crescimanno M, Flandina C. On the role of cystatin C in cancer progression. Life Sci 2018; 202:152-160. [DOI: 10.1016/j.lfs.2018.04.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/17/2018] [Accepted: 04/11/2018] [Indexed: 02/06/2023]
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Decock J, Obermajer N, Vozelj S, Hendrickx W, Paridaens R, Kos J. Cathepsin B, Cathepsin H, Cathepsin X and Cystatin C in Sera of Patients with Early-Stage and Inflammatory Breast Cancer. Int J Biol Markers 2018; 23:161-8. [DOI: 10.1177/172460080802300305] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Numerous studies have linked cathepsins and their inhibitor cystatin C to tumor invasion and metastasis. We examined whether cathepsin B, cathepsin H, cathepsin X and cystatin C could be detected in sera from women with early-stage or inflammatory breast cancer and whether they correlated with clinicopathological characteristics. Preoperative serum was obtained from 176 patients with early-stage breast cancer (tumor size <5 cm, negative lymph nodes) and 31 patients with inflammatory breast cancer. Cathepsin and cystatin C levels were measured by ELISA. The patient and tumor characteristics under study were age at diagnosis, menopausal status, tumor size, tumor grade, and steroid hormone receptor status. Serum cathepsin B levels were significantly lower in patients with poorly differentiated tumors. High cystatin C levels were associated with tumor size, postmenopausal status and patient age. Interestingly, significantly lower levels of cathepsin X and H were found in patients with inflammatory breast cancer, a trend also observed for cathepsin B and cystatin C. In conclusion, our results show a limited association of cathepsins B, H, X and cystatin C with established prognostic parameters. These data are promising and encourage future analysis of the clinical outcome of our patients in order to examine the potential prognostic value of these biomarkers. Further, this study indicates a role for cathepsin X and H in inflammatory breast cancer.
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Affiliation(s)
- J. Decock
- Laboratory for Experimental Oncology,
K.U. Leuven, University Hospitals Leuven, Leuven - Belgium
| | - N. Obermajer
- Faculty of Pharmacy, University of
Ljubljana, Ljubljana - Slovenia
| | - S. Vozelj
- Faculty of Pharmacy, University of
Ljubljana, Ljubljana - Slovenia
| | - W. Hendrickx
- Laboratory for Experimental Oncology,
K.U. Leuven, University Hospitals Leuven, Leuven - Belgium
- Multidisciplinary Breast Center,
University Hospitals Leuven, Leuven - Belgium
| | - R. Paridaens
- Laboratory for Experimental Oncology,
K.U. Leuven, University Hospitals Leuven, Leuven - Belgium
- Multidisciplinary Breast Center,
University Hospitals Leuven, Leuven - Belgium
| | - J. Kos
- Faculty of Pharmacy, University of
Ljubljana, Ljubljana - Slovenia
- Department of Biotechnology, Jozef
Stefan Institute, Ljubljana - Slovenia
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Duivenvoorden HM, Rautela J, Edgington‐Mitchell LE, Spurling A, Greening DW, Nowell CJ, Molloy TJ, Robbins E, Brockwell NK, Lee CS, Chen M, Holliday A, Selinger CI, Hu M, Britt KL, Stroud DA, Bogyo M, Möller A, Polyak K, Sloane BF, O'Toole SA, Parker BS. Myoepithelial cell‐specific expression of stefin A as a suppressor of early breast cancer invasion. J Pathol 2017; 243:496-509. [DOI: 10.1002/path.4990] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/21/2017] [Accepted: 09/18/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Hendrika M Duivenvoorden
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
| | - Jai Rautela
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
- Sir Peter MacCallum Department of Oncology University of Melbourne VIC Australia
- The Walter and Eliza Hall Institute of Medical Research Melbourne VIC Australia
- Department of Medical Biology University of Melbourne VIC Australia
| | - Laura E Edgington‐Mitchell
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences Monash University Melbourne VIC Australia
| | - Alex Spurling
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
| | - David W Greening
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
| | - Cameron J Nowell
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences Monash University Melbourne VIC Australia
| | | | - Elizabeth Robbins
- Department of Tissue Pathology and Diagnostic Oncology Royal Prince Alfred Hospital Camperdown NSW Australia
| | - Natasha K Brockwell
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
| | - Cheok Soon Lee
- Department of Tissue Pathology and Diagnostic Oncology Royal Prince Alfred Hospital Camperdown NSW Australia
- Sydney Medical School University of Sydney NSW Australia
- Cancer Pathology and Cell Biology Laboratory Ingham Institute for Applied Medical Research, and University of New South Wales NSW Australia
- Cancer Pathology, Bosch Institute University of Sydney NSW Australia
| | - Maoshan Chen
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
| | - Anne Holliday
- Department of Tissue Pathology and Diagnostic Oncology Royal Prince Alfred Hospital Camperdown NSW Australia
| | - Cristina I Selinger
- Department of Tissue Pathology and Diagnostic Oncology Royal Prince Alfred Hospital Camperdown NSW Australia
| | - Min Hu
- Department of Medical Oncology Dana‐Farber Cancer Institute, Harvard Medical School Boston Massachusetts USA
| | - Kara L Britt
- Peter MacCallum Cancer Centre Melbourne VIC Australia
| | - David A Stroud
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute Monash University Melbourne VIC Australia
| | - Matthew Bogyo
- Department of Pathology Stanford University School of Medicine California USA
| | - Andreas Möller
- Immunology Department QIMR Berghofer Medical Research Institute Brisbane QLD Australia
| | - Kornelia Polyak
- Department of Medical Oncology Dana‐Farber Cancer Institute, Harvard Medical School Boston Massachusetts USA
| | - Bonnie F Sloane
- Department of Pharmacology Wayne State University School of Medicine Detroit Michigan USA
- Barbara Ann Karmanos Cancer Institute Wayne State University School of Medicine Detroit Michigan USA
| | - Sandra A O'Toole
- Sydney Medical School University of Sydney NSW Australia
- Garvan Institute of Medical Research Darlinghurst NSW Australia
- Australian Clinical Labs Bella Vista NSW Australia
| | - Belinda S Parker
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science Melbourne VIC Australia
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Leto G, Incorvaia L, Flandina C, Ancona C, Fulfaro F, Crescimanno M, Sepporta MV, Badalamenti G. Clinical Impact of Cystatin C/Cathepsin L and Follistatin/Activin A Systems in Breast Cancer Progression: A Preliminary Report. Cancer Invest 2016; 34:415-423. [DOI: 10.1080/07357907.2016.1222416] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Gaetano Leto
- Department of Sciences for Health Promotion, School of Medicine, University of Palermo, Palermo, Italy
| | - Lorena Incorvaia
- Department of Surgical, Oncological and Oral Sciences, School of Medicine, University of Palermo, Palermo, Italy
| | - Carla Flandina
- Department of Sciences for Health Promotion, School of Medicine, University of Palermo, Palermo, Italy
| | - Chiara Ancona
- Department of Surgical, Oncological and Oral Sciences, School of Medicine, University of Palermo, Palermo, Italy
| | - Fabio Fulfaro
- Department of Surgical, Oncological and Oral Sciences, School of Medicine, University of Palermo, Palermo, Italy
| | - Marilena Crescimanno
- Department of Sciences for Health Promotion, School of Medicine, University of Palermo, Palermo, Italy
| | | | - Giuseppe Badalamenti
- Department of Surgical, Oncological and Oral Sciences, School of Medicine, University of Palermo, Palermo, Italy
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Zhang X, Hou Y, Niu Z, Li W, Meng X, Zhang N, Yang S. [Clinical significance of detection of cathepsin X and cystatin C in the sera of patients with lung cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2014; 16:411-6. [PMID: 23945244 PMCID: PMC6000661 DOI: 10.3779/j.issn.1009-3419.2013.08.04] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND AND OBJECTIVE Cathepsin X (Cat X) has been identified as a member of cathepsin family. Studies have shown that Cat X is involved in tumorigenesis and tumor development of various cancers. The aim of this study is to investigate the relationship between the clinicopathological prognosis and the levels of Cat X and cystatin C in the serum of patients with lung cancer. METHODS Blood samples were collected from 84 patients with lung cancer and 36 healthy control subjects. Cat X and cystatin C were determined by quantitative ELISA. RESULTS Cat X and cystatin C levels were significantly higher in the patients with lung cancer than that in the healthy control subjects (P<0.01). Cat X level was correlated with the pathological types of lung cancer (P=0.076). Cystatin C was positively correlated with TNM stage (P=0.01). Furthermore, cystatin C/Cat X was correlated with lymph node metastasis (P=0.058). The patients with high Cat X levels experienced significantly shorter overall survival rates compared with those with low Cat X. Univariate analysis indicated that Cat X and TNM stage were related to overall survival. Multivariate Cox analysis indicated that TNM stage may be used as an independent prognostic variable in patients with lung cancer. CONCLUSIONS Cat X and cystatin C levels were significantly higher in patients with lung cancer. Cat X and cystatin C detection in the sera may contribute to the diagnosis of lung cancer and may be used to evaluate the prognosis of patients with NSCLC.
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Affiliation(s)
- Xuede Zhang
- Department of Respiratory Medicine, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an 710004, China
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Samaiya M, Bakhshi S, Shukla AA, Kumar L, Chauhan SS. Epigenetic regulation of cathepsin L expression in chronic myeloid leukaemia. J Cell Mol Med 2012; 15:2189-99. [PMID: 21496199 PMCID: PMC4394228 DOI: 10.1111/j.1582-4934.2010.01203.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The expression and significance of cathepsin L (CTSL) has been extensively studied in solid tumours. However no such information in chronic myeloid leukaemia (CML) was available. We investigated the activity and expression of this protease in peripheral blood mononuclear cells (PBMCs) of 47 adult CML patients. Thirty adults suffering from systemic diseases and 50 healthy volunteers served as controls. The mRNA levels of CTSL, its specific endogenous inhibitor cystatin C and transcriptional up-regulator vascular endothelial growth factor (VEGF) were quantitated by real-time qPCR. CTSL protease activity and its mRNA expression were significantly higher in CML chronic phase (CP) patients compared to CML accelerated phase/blast crisis (AP/BC) patients and controls (P≤ 0.001). VEGF whose expression was most pronounced in CP and declined (P≤ 0.001) in the advanced phases of the malignancy exhibited a strong positive correlation with CTSL expression (r= 0.97; P≤ 0.001). Cystatin C expression was significantly lower (P≤ 0.001) in CML and displayed inverse correlation with CTSL (r=−0.713; P≤ 0.001) activity. CTSL promoter was significantly hypomethylated in CML CP compared to CML AP/BC patients as well as controls. K562, a BC CML cell line displayed CTSL activity, expression and methylation status of CTSL promoter that was comparable to CML AP/BC patients. Treatment of these cells or PBMCs isolated from CML AP/BC patients with 5′-aza-cytidine resulted in a dramatic increase in CSTL activity and/or expression thereby demonstrating the role of promoter methylation in the stage specific expression of CTSL in CML. Differential expression of CTSL in CML at various stages of malignancy may prove useful in identification of the high-risk patients thereby facilitating better management of disease.
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Affiliation(s)
- Misti Samaiya
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
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Nouh MA, Mohamed MM, El-Shinawi M, Shaalan MA, Cavallo-Medved D, Khaled HM, Sloane BF. Cathepsin B: a potential prognostic marker for inflammatory breast cancer. J Transl Med 2011. [PMID: 21199580 DOI: 10.1186/1479-5876-9-11479-5876-9-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Inflammatory breast cancer (IBC) is the most aggressive form of breast cancer. In non-IBC, the cysteine protease cathepsin B (CTSB) is known to be involved in cancer progression and invasion; however, very little is known about its role in IBC. METHODS In this study, we enrolled 23 IBC and 27 non-IBC patients. All patient tissues used for analysis were from untreated patients. Using immunohistochemistry and immunoblotting, we assessed the levels of expression of CTSB in IBC versus non-IBC patient tissues. Previously, we found that CTSB is localized to caveolar membrane microdomains in cancer cell lines including IBC, and therefore, we also examined the expression of caveolin-1 (cav-1), a structural protein of caveolae in IBC versus non-IBC tissues. In addition, we tested the correlation between the expression of CTSB and cav-1 and the number of positive metastatic lymph nodes in both patient groups. RESULTS Our results revealed that CTSB and cav-1 were overexpressed in IBC as compared to non-IBC tissues. Moreover, there was a significant positive correlation between the expression of CTSB and the number of positive metastatic lymph nodes in IBC. CONCLUSIONS CTSB may initiate proteolytic pathways crucial for IBC invasion. Thus, our data demonstrate that CTSB may be a potential prognostic marker for lymph node metastasis in IBC.
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Affiliation(s)
- Mohamed A Nouh
- Department of Pathology, National Cancer Institute, Cairo University, Giza 12613 Egypt
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Nouh MA, Mohamed MM, El-Shinawi M, Shaalan MA, Cavallo-Medved D, Khaled HM, Sloane BF. Cathepsin B: a potential prognostic marker for inflammatory breast cancer. J Transl Med 2011; 9:1. [PMID: 21199580 PMCID: PMC3022726 DOI: 10.1186/1479-5876-9-1] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Accepted: 01/03/2011] [Indexed: 11/10/2022] Open
Abstract
Background Inflammatory breast cancer (IBC) is the most aggressive form of breast cancer. In non-IBC, the cysteine protease cathepsin B (CTSB) is known to be involved in cancer progression and invasion; however, very little is known about its role in IBC. Methods In this study, we enrolled 23 IBC and 27 non-IBC patients. All patient tissues used for analysis were from untreated patients. Using immunohistochemistry and immunoblotting, we assessed the levels of expression of CTSB in IBC versus non-IBC patient tissues. Previously, we found that CTSB is localized to caveolar membrane microdomains in cancer cell lines including IBC, and therefore, we also examined the expression of caveolin-1 (cav-1), a structural protein of caveolae in IBC versus non-IBC tissues. In addition, we tested the correlation between the expression of CTSB and cav-1 and the number of positive metastatic lymph nodes in both patient groups. Results Our results revealed that CTSB and cav-1 were overexpressed in IBC as compared to non-IBC tissues. Moreover, there was a significant positive correlation between the expression of CTSB and the number of positive metastatic lymph nodes in IBC. Conclusions CTSB may initiate proteolytic pathways crucial for IBC invasion. Thus, our data demonstrate that CTSB may be a potential prognostic marker for lymph node metastasis in IBC.
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Affiliation(s)
- Mohamed A Nouh
- Department of Pathology, National Cancer Institute, Cairo University, Giza 12613 Egypt
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13
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Cathepsins B and L in peripheral blood mononuclear cells of pediatric acute myeloid leukemia: potential poor prognostic markers. Ann Hematol 2010; 89:1223-32. [PMID: 20567828 DOI: 10.1007/s00277-010-1012-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Accepted: 06/08/2010] [Indexed: 10/19/2022]
Abstract
The diagnostic and prognostic significance of cathepsin B (CTSB) and L (CTSL) is well documented for solid tumors. However, their significance in acute leukemias is lacking. This study was planned to investigate expression and significance of these proteases in peripheral blood mononuclear cells (PBMCs) of patients with pediatric acute myeloid leukemia (AML). CTSL and CTSB activities were assayed in PBMCs of 24 children with AML and ten healthy controls by spectrofluorimetry. The mRNA levels of these proteases and their specific endogenous inhibitor cystatin C and transcriptional upregulator vascular endothelial growth factor (VEGF) were quantitated by real-time PCR. Correlation analysis of CTSL and CTSB activities/expression with their inhibitor/upregulator and event-free survival (EFS) was done using appropriate statistical tools. CTSL and CTSB protease activity and their mRNA expression were significantly higher in AML patients compared to controls (p ≤ 0.001). A strong positive correlation was observed between VEGF expression and CTSL (r = 0.812; p ≤ 0.001). Similarly, VEGF exhibited a strong positive correlation with CTSB (r = 0.501; p = 0.013). Cystatin expression though significantly high (p ≤ 0.001) in AML was negatively correlated with CTSL (r = -0.920; p ≤ 0.001) and CTSB (r = -0.580, p ≤ 0.001) expression. AML patients with higher CTSL and CTSB activity exhibited an inferior EFS (CTSL: p = 0.045; CTSB: p = 0.002) and overall survival (OS; CTSL: p = 0.05; CTSB: p = 0.004) compared to patients with lower levels of these proteases. This is the first report demonstrating increased expression of CTSL and CTSB in AML, mechanism of their increased expression in relation to VEGF, and their association with poor EFS and OS. These results suggest a potential utility of these proteases as prognostic markers for this malignancy.
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Rodenburg W, Pennings JLA, van Oostrom CTM, Roodbergen M, Kuiper RV, Luijten M, de Vries A. Identification of breast cancer biomarkers in transgenic mouse models: A proteomics approach. Proteomics Clin Appl 2010; 4:603-12. [PMID: 21137078 DOI: 10.1002/prca.200900175] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 11/26/2009] [Accepted: 12/08/2009] [Indexed: 01/30/2023]
Abstract
PURPOSE Transgenic mouse models for cancer circumvent many challenges that hamper human studies aimed at biomarker discovery. Lower biological variances among mice combined with controllable factors such as food uptake and health status may enable the detection of more subtle protein expression differences. This is envisioned to result in the identification of biomarkers better discriminating cancer cases from controls. EXPERIMENTAL DESIGN The current study used two innovative mouse models for breast-cancer to identify new serum biomarkers. Multi-analyte profiling technique was used to analyze 70 proteins in individual serum samples of non-tumor and mammary tumor-bearing Tg.NK (MMTV/c-neu) mice. RESULTS A small set of proteins fully differentiated tumor samples from controls. These comprised osteopontin, interleukin-18, cystatin C and CD40 antigen. Comparison of protein expression in another breast-cancer mouse model, the humanized p53.R270H mice, showed common discriminatory expression of osteopontin. However, other biomarkers showed distinct expression in the two different breast-cancer models, indicating that different mammary tumor sub-types with respect to molecular and estrogen receptor status reveal divergent serum biomarker sets. CONCLUSIONS AND CLINICAL RELEVANCE The current study supports the concept that serum proteins can discriminate mammary tumor cases from controls, and yielded interesting biomarkers that need further testing and validation in human studies.
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Affiliation(s)
- Wendy Rodenburg
- Laboratory for Health Protection Research, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
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Chen X, Cao X, Dong W, Xia M, Luo S, Fan Q, Xie J. Cystatin M expression is reduced in gastric carcinoma and is associated with promoter hypermethylation. Biochem Biophys Res Commun 2009; 391:1070-4. [PMID: 20004178 DOI: 10.1016/j.bbrc.2009.12.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2009] [Accepted: 12/04/2009] [Indexed: 10/20/2022]
Abstract
Cystatin M is a secreted inhibitor of lysosomal cysteine proteases and increasing evidences indicate that it is a novel target for epigenetic silencing during mammary tumorigenesis. Aberrant promoter methylation is a well-known mechanism that participates in cystatin M silencing in breast cancer. However, the role of cystatin M in the gastric cancer remains to be elucidated. Immunohistochemistry was used to investigate the expression of cystatin M in 60 gastric carcinomas. Hypermethylation of cystatin M promoter was evaluated by the methylation-specific PCR (MSP) method in gastric carcinomas (tumor and paired adjacent non-tumor tissues). Reverse-transcriptase PCR and BSP were also performed on gastric cancer cell lines before and after treatment with 5-aza-2'-deoxycytidine (5-Aza-dC). Lost expression of cystatin M was observed in 42 of 60 (70%) gastric carcinomas. 55% (33 of 60) of primary tumors analyzed displayed cystatin M promoter hypermethylation, indicating that this aberrant characteristic is common in gastric malignancies. Moreover, a statistically significant inverse association was found between cystatin M methylation status and expression of the cystatin M protein in tumor tissues (p=0.027). We also found that patients with cystatin M promoter methylation had a significantly shorter survival time than those without this methylation (p=0.020). These results suggest that cystatin M promoter hypermethylation is one of the molecular mechanisms that accounts for reduced cystatin M gene expression in gastric carcinomas.
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Affiliation(s)
- Xiaobing Chen
- Department of Internal Medicine-Oncology, The First Affiliated Hospital, Zhengzhou University, People's Republic of China
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16
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Watson CJ, Kreuzaler PA. The role of cathepsins in involution and breast cancer. J Mammary Gland Biol Neoplasia 2009; 14:171-9. [PMID: 19437107 DOI: 10.1007/s10911-009-9126-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Accepted: 04/23/2009] [Indexed: 12/13/2022] Open
Abstract
Cysteine cathepsins are proteolytic enzymes that reside in endolysosomal vesicles. Some are expressed constitutively while others are transcriptionally regulated. However, the expression and subcellular localization of cathepsins changes during cancer progression and cathepsins have been shown to be causally involved in various aspects of tumorigenesis including metastasis. The use of mouse models of breast cancer genetically ablated for cathepsin B has shown that both the growth of the primary tumor and the extend of lung metastasis is reduced by the loss of cathepsin B. The role of cathepsins in involution of the mammary gland has received little attention although it is clear that cathepsins are involved in tissue remodeling in the second phase of involution. We discuss here the roles of cathepsins and their endogenous inhibitors in breast tumorigenesis and post-lactational involution.
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Zeeuwen PLJM, Cheng T, Schalkwijk J. The biology of cystatin M/E and its cognate target proteases. J Invest Dermatol 2009; 129:1327-38. [PMID: 19262604 DOI: 10.1038/jid.2009.40] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Cystatin M/E is a member of a superfamily of evolutionarily-related cysteine protease inhibitors that provide regulatory and protective functions against uncontrolled proteolysis by cysteine proteases. Although most cystatins are ubiquitously expressed, high levels of cystatin M/E expression are mainly restricted to the epithelia of the skin (epidermis, hair follicles, sebaceous glands, and sweat glands) and to a few extracutaneous tissues. The identification of its physiological targets and the localization of these proteases in skin have suggested a regulatory role for cystatin M/E in epidermal differentiation. In vitro biochemical approaches as well as the use of in vivo mouse models have revealed that cystatin M/E is a key molecule in a biochemical pathway that controls skin barrier formation by the regulation of both crosslinking and desquamation of the stratum corneum. Cystatin M/E directly controls the activity of cathepsin V, cathepsin L, and legumain, thereby regulating the processing of transglutaminases. Misregulation of this pathway by unrestrained protease activity, as seen in cystatin M/E-deficient mice, leads to abnormal stratum corneum and hair follicle formation, as well as to severe disturbance of skin barrier function. Here, we review the current knowledge on cystatin M/E in skin barrier formation and its potential role as a tumor suppressor gene.
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Affiliation(s)
- Patrick L J M Zeeuwen
- Department of Dermatology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
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18
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Hosokawa M, Kashiwaya K, Eguchi H, Ohigashi H, Ishikawa O, Furihata M, Shinomura Y, Imai K, Nakamura Y, Nakagawa H. Over-expression of cysteine proteinase inhibitor cystatin 6 promotes pancreatic cancer growth. Cancer Sci 2008; 99:1626-32. [PMID: 18754876 PMCID: PMC11159400 DOI: 10.1111/j.1349-7006.2008.00869.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) shows the worst mortality among the common malignancies and development of novel therapies for PDAC through identification of good molecular targets is an urgent issue. Among dozens of over-expressing genes identified through our gene-expression profile analysis of PDAC cells, we here report CST6 (Cystatin 6 or E/M) as a candidate of molecular targets for PDAC treatment. Reverse transcriptase-polymerase chain reaction (RT-PCR) and immunohistochemical analysis confirmed over-expression of CST6 in PDAC cells, but no or limited expression of CST6 was observed in normal pancreas and other vital organs. Knock-down of endogenous CST6 expression by small interfering RNA attenuated PDAC cell growth, suggesting its essential role in maintaining viability of PDAC cells. Concordantly, constitutive expression of CST6 in CST6-null cells promoted their growth in vitro and in vivo. Furthermore, the addition of mature recombinant CST6 in culture medium also promoted cell proliferation in a dose-dependent manner, whereas recombinant CST6 lacking its proteinase-inhibitor domain and its non-glycosylated form did not. Over-expression of CST6 inhibited the intracellular activity of cathepsin B, which is one of the putative substrates of CST6 proteinase inhibitor and can intracellularly function as a pro-apoptotic factor. These findings imply that CST6 is likely to involve in the proliferation and survival of pancreatic cancer probably through its proteinase inhibitory activity, and it is a promising molecular target for development of new therapeutic strategies for PDAC.
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Affiliation(s)
- Masayo Hosokawa
- Laboratory of Molecular Medicine, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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19
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Tumminello FM, Badalamenti G, Incorvaia L, Fulfaro F, D’Amico C, Leto G. Serum interleukin-6 in patients with metastatic bone disease: correlation with cystatin C. Med Oncol 2008; 26:10-5. [DOI: 10.1007/s12032-008-9070-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Accepted: 04/17/2008] [Indexed: 01/18/2023]
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20
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Identification of gene signatures for invasive colorectal tumor cells. ACTA ACUST UNITED AC 2008; 31:282-95. [PMID: 17936523 DOI: 10.1016/j.cdp.2007.07.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2007] [Indexed: 01/16/2023]
Abstract
BACKGROUND Gene signatures of sporadic colorectal carcinoma tissues and microdissected colorectal tumor cells were analyzed to identify stromal and tumor cell-specific markers, respectively. METHODS Serial sections of frozen colorectal tumors (n=29) were subjected to RNA isolation of (1) entire tissue sections with a various tumor cell content and of (2) microdissected invasive tumor cells. Three matching samples of microdissected normal colorectal epithelial and invasive tumor cells were similarly obtained. RNA samples were analyzed using the HG95A and HG95Av2 GeneChip microarrays (Affymetrix). The microarray data was evaluated by established methods and validated by Q-RT-PCR. RESULTS Unsupervised hierarchical cluster analysis of 18 sample pairs (training set) clearly distinguished tumors from microdissected tumor cells. A 149-gene signature was identified using statistical methods, which was then validated by a hierarchical clustering analysis of 11 independent sample pairs (test set). Genes specifically associated with microdissected invasive tumor cells were for example CKS2 and NME1. In contrast, genes associated with stromal cells were for example MMP2, SDF1 and FBLN2. Finally, a 65-gene signature distinguished normal colorectal epithelial cells and invasive tumor cells, including down-regulation of BMP2 and ANPEP mRNA expression as well as up-regulation of TKT, SPARC, MCM5 mRNA expression. CONCLUSIONS Our approach allowed precise evaluation of molecular signatures in morphologically defined cell populations and identified novel target genes related to stroma-tumor interactions in colorectal cancer. The approach enables further analysis of gene signatures in different tumor areas and cell types, such as within invasive margins to decipher molecular mechanisms of colorectal cancer invasion and metastasis.
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Keppler D. Towards novel anti-cancer strategies based on cystatin function. Cancer Lett 2006; 235:159-76. [PMID: 15893421 DOI: 10.1016/j.canlet.2005.04.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2005] [Accepted: 04/01/2005] [Indexed: 02/04/2023]
Abstract
Cystatins have recently emerged as important players in a multitude of physiological and patho-physiological settings that range from cell survival and proliferation, to differentiation, cell signaling and immunomodulation. This group of cysteine protease inhibitors forms a large super-family of proteins composed of one, two, three, and, in some species, more than three cystatin domains. Over the last 20 years or so, members of the cystatin super-family have been primarily explored with respect to their capacity to inhibit intracellular cysteine proteases. Yet, this classical mode of action does not fully explain their remarkably diverse biological functions. Due to the space limitations, the author will discuss here the most recent findings that suggest that some of the single-domain, cytoplasmic and cell-secreted cystatins may play important roles in the promotion or suppression of tumor growth, invasion and metastasis. Based on the present understanding of cystatin function, novel avenues for anti-cancer strategies are proposed.
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Affiliation(s)
- Daniel Keppler
- Department of Cellular Biology and Anatomy and Feist-Weiller Cancer Center, School of Medicine, Louisiana State University Health Sciences Center in Shreveport, 1501 Kings Highway, P.O. Box 33932, Shreveport, LA 71130, USA.
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Song J, Jie C, Polk P, Shridhar R, Clair T, Zhang J, Yin L, Keppler D. The candidate tumor suppressor CST6 alters the gene expression profile of human breast carcinoma cells: down-regulation of the potent mitogenic, motogenic, and angiogenic factor autotaxin. Biochem Biophys Res Commun 2005; 340:175-82. [PMID: 16356477 DOI: 10.1016/j.bbrc.2005.11.171] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2005] [Accepted: 11/23/2005] [Indexed: 02/06/2023]
Abstract
We recently coined CST6 as a novel candidate tumor suppressor gene for breast cancer. CST6 indeed is expressed in the normal human breast epithelium, but little or not at all in breast carcinomas and breast cancer cell lines. Moreover, ectopic expression of CST6 in human breast cancer cells suppressed cell proliferation, migration, invasion, and orthotopic tumor growth. To obtain insights into the molecular mechanism by which CST6 exhibits its pleiotropic effects on tumor cells, we compared global gene expression profiles in mock- and CST6-transfected human MDA-MB-435S cells. Out of 12,625 transcript species, 61 showed altered expression. These included genes for extracellular matrix components, cytokines, kinases, and phosphatases, as well as several key transcription factors. TaqMan PCR assays were used to confirm the microarray data for 7 out of 11 genes. One down-regulated gene product, secreted autotaxin/lyso-phospholipase D, was of particular interest because its down-regulation by CST6 could explain most of CST6's effect on the breast cancer cells. This study thus provides the first evidence that CST6 plays a role in the modulation of genes, particularly, genes that are highly relevant to breast cancer progression.
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Affiliation(s)
- Jin Song
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences Center, Shreveport, USA
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