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Jin Z, Dridi N, Palui G, Palomo V, Jokerst JV, Dawson PE, Amy Sang QX, Mattoussi H. Evaluating the Catalytic Efficiency of the Human Membrane-type 1 Matrix Metalloproteinase (MMP-14) Using AuNP-Peptide Conjugates. J Am Chem Soc 2023; 145:4570-4582. [PMID: 36802544 DOI: 10.1021/jacs.2c12032] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Interactions of plasmonic nanocolloids such as gold nanoparticles and nanorods with proximal dye emitters result in efficient quenching of the dye photoluminescence (PL). This has become a popular strategy for developing analytical biosensors relying on this quenching process for signal transduction. Here, we report on the use of stable PEGylated gold nanoparticles, covalently coupled to dye-labeled peptides, as sensitive optically addressable sensors for determining the catalytic efficiency of the human matrix metalloproteinase-14 (MMP-14), a cancer biomarker. We exploit real-time dye PL recovery triggered by MMP-14 hydrolysis of the AuNP-peptide-dye to extract quantitative analysis of the proteolysis kinetics. Sub-nanomolar limit of detections for MMP-14 has been achieved using our hybrid bioconjugates. In addition, we have used theoretical considerations within a diffusion-collision framework to derive enzyme substrate hydrolysis and inhibition kinetics equations, which allowed us to describe the complexity and irregularity of enzymatic proteolysis of nanosurface-immobilized peptide substrates. Our findings offer a great strategy for the development of highly sensitive and stable biosensors for cancer detection and imaging.
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Affiliation(s)
- Zhicheng Jin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Narjes Dridi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Goutam Palui
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Valle Palomo
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jesse V Jokerst
- Department of NanoEngineering, Materials Science and Engineering Program, and Department of Radiology, University of California, San Diego, La Jolla, California 92093, United States
| | - Philip E Dawson
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
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Trentini A, Manfrinato MC, Castellazzi M, Bellini T. Sex-Related Differences of Matrix Metalloproteinases (MMPs): New Perspectives for These Biomarkers in Cardiovascular and Neurological Diseases. J Pers Med 2022; 12:jpm12081196. [PMID: 35893290 PMCID: PMC9331234 DOI: 10.3390/jpm12081196] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/16/2022] Open
Abstract
It is now established that sex differences occur in clinical manifestation, disease progression, and prognosis for both cardiovascular (CVDs) and central nervous system (CNS) disorders. As such, a great deal of effort is now being put into understanding these differences and turning them into “advantages”: (a) for the discovery of new sex-specific biomarkers and (b) through a review of old biomarkers from the perspective of the “newly” discovered sex/gender medicine. This is also true for matrix metalloproteinases (MMPs), enzymes involved in extracellular matrix (ECM) remodelling, which play a role in both CVDs and CNS disorders. However, most of the studies conducted up to now relegated sex to a mere confounding variable used for statistical model correction rather than a determining factor that can influence MMP levels and, in turn, disease prognosis. Consistently, this approach causes a loss of information that might help clinicians in identifying novel patterns and improve the applicability of MMPs in clinical practice by providing sex-specific threshold values. In this scenario, the current review aims to gather the available knowledge on sex-related differences in MMPs levels in CVDs and CNS conditions, hoping to shed light on their use as sex-specific biomarkers of disease prognosis or progression.
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Affiliation(s)
- Alessandro Trentini
- Department of Environmental and Prevention Sciences, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy;
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
| | - Maria Cristina Manfrinato
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.C.M.); (T.B.)
| | - Massimiliano Castellazzi
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.C.M.); (T.B.)
- Interdepartmental Research Center for the Study of Multiple Sclerosis and Inflammatory and Degenerative Diseases of the Nervous System, University of Ferrara, 44121 Ferrara, Italy
- Correspondence:
| | - Tiziana Bellini
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.C.M.); (T.B.)
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Rodriguez KM, Curran MT, Palmieri-Smith RM. The influence of sex and BMI on cartilage metabolism biomarkers in patients after anterior cruciate ligament injury and reconstruction. J Athl Train 2021; 57:478-484. [PMID: 34543412 PMCID: PMC9205560 DOI: 10.4085/1062-6050-0041.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
CONTEXT Serum biomarkers may allow for early identification of post-traumatic osteoarthritis after anterior cruciate ligament (ACL) injury and reconstruction. Homeostasis of matrix-metalloproteinase-3 (MMP-3) and type II collagen turnover (C2C:CPII) biomarkers are believed to be compromised in individuals with ACL injury, yet the influence of sex, BMI, and age on these biomarkers before and after ACL reconstruction remains unknown. OBJECTIVE To determine the relationship of sex, BMI, and age on serum levels of MMP-3 and C2C:CPII before and after ACL reconstruction. DESIGN Descriptive Laboratory Study Setting: Laboratory. PATIENTS 32 (18F,14M) ACL-injured subjects participated in this study. MAIN OUTCOME MEASURES Demographic variables and blood samples were collected prior to surgery and at the time of return to activity. Serum was extracted from the blood and assays were used to quantify MMP-3 and C2C:CPII. Generalized linear mixed-effects regression models were used to assess the relationship between sex, BMI, time, age, and subject on the outcome variables. RESULTS A significant time-sex interaction was identified for MMP-3 levels (P=0.021), whereby MMP-3 levels were higher in males at return to activity (Males:2.71±0.59ng/mL; Females:1.92±0.60ng/mL; P=0.017). Males also had higher MMP-3 levels at return to activity when compared to pre-surgery levels (P=0.009). A main effect for age demonstrated that older age was associated with higher MMP-3 levels. No significant main or interaction effects were noted for C2C:CPII levels. CONCLUSIONS MMP-3 serum levels may be upregulated following ACL reconstruction, particularly in men, which may have deleterious consequences for the cartilage matrix. Sex, BMI, and time did not influence C2C:CPII ratios but further research with larger sample sizes are needed to confirm these findings.
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Affiliation(s)
| | - Michael T Curran
- 1School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
| | - Riann M Palmieri-Smith
- 1School of Kinesiology, University of Michigan, Ann Arbor, MI, USA.,2Department of Orthopaedic Surgery, Michigan Medicine, Ann Arbor, MI
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Estimation of serum and salivary matrix metalloproteinase levels in oral squamous cell carcinoma patients: a systematic review and meta-analysis. Postepy Dermatol Alergol 2021; 38:106-114. [PMID: 34408576 PMCID: PMC8362777 DOI: 10.5114/ada.2021.104285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/04/2019] [Indexed: 12/14/2022] Open
Abstract
Introduction Matrix metalloproteinases (MMPs) play a pivotal role in the cancer progression, invasion, and angiogenesis. Aim This meta-analysis was conducted to evaluate the difference between oral squamous cell carcinoma (OSCC) patients and healthy controls in the serum and salivary MMP levels. Material and methods Four databases – Web of Science, PubMed, Scopus, and Cochrane Library – were searched up to March 2019. The pooled standard mean difference (SMD) and 95% confidence interval (CI) were obtained to explain the difference between the patients and controls in the salivary and serum MMP levels. Both Egger’s and Begg’s tests were considered as the significant publication bias. Results Thirteen case-control studies were included in the meta-analysis. Among the analyses of serum MMP levels, the serum MMP7 (SMD = 0.78; 95% CI: 0.15–1.41; p = 0.02) and MMP9 (SMD = 1.18; 95% CI: 0.51–1.84; p = 0.0005) levels were significantly higher in the OSCC patients than in the controls. In addition, the analyses of salivary MMP levels showed that the MMP1 (SMD = 0.46; 95% CI: 0.22–0.70; p = 0.0001) and MMP9 (SMD = 0.66; 95% CI: 0.19–1.12; p = 0.005) levels were significantly higher in the OSCC patients than in the controls. Conclusions The meta-analysis showed that the serum MMP7 and MPP9 levels as well as the salivary MMP1 and MPP9 levels were significantly higher in the OSCC patients than in the controls.
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Iannarelli NJ, MacNeil AJ, Dempster KS, Wade TJ, O’Leary DD. Serum MMP-3 and its association with central arterial stiffness among young adults is moderated by smoking and BMI. Physiol Rep 2021; 9:e14920. [PMID: 34110720 PMCID: PMC8191404 DOI: 10.14814/phy2.14920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/26/2021] [Accepted: 05/14/2021] [Indexed: 12/21/2022] Open
Abstract
Central arterial stiffness is an independent predictor of cardiovascular disease. It is characterized by a marked reduction in the elastin-collagen ratio of the arterial wall extracellular matrix (ECM), and is largely the result of degradation of various ECM components. Matrix metalloproteinase-3 (MMP-3) may contribute to central arterial stiffness via its involvement in ECM homeostasis and remodeling. This study examined the association between serum MMP-3 concentrations and central arterial stiffness and potential interactions of MMP-3 and traditional cardiovascular risk factors in a population of healthy young adults. A total of 206 participants (n = 109 females) aged 19-25 years were included in the current study. Central arterial stiffness was measured non-invasively as carotid-femoral pulse wave velocity (cfPWV) (m/s). MMP-3 concentrations (ng/ml) were measured using ELISA techniques. Regression analyses were used to examine the association between cfPWV and MMP-3, adjusting for age, sex, smoking status, body mass index (BMI), instantaneous mean arterial pressure (MAP) and heart rate, and serum C-reactive protein. Interactions between MMP-3 with smoking, BMI, sex, and MAP were analyzed in subsequent regression models. MMP-3 was an independent predictor of cfPWV (β = 0.187, p = 0.007), and significant interactions between MMP-3 and regular smoking (β = 0.291, p = 0.022), and MMP-3 and BMI (β = 0.210, p = 0.013) were observed. Higher serum MMP-3 concentrations were associated with a faster cfPWV and thus, greater central arterial stiffness. Interactions between MMP-3 and smoking, and MMP-3 and BMI may, in part, drive the association between MMP-3 and central arterial stiffness.
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Affiliation(s)
- Nathaniel J. Iannarelli
- Department of Health SciencesFaculty of Applied Health SciencesBrock UniversitySaint CatharinesONCanada
| | - Adam J. MacNeil
- Department of Health SciencesFaculty of Applied Health SciencesBrock UniversitySaint CatharinesONCanada
| | - Kylie S. Dempster
- Department of Health SciencesFaculty of Applied Health SciencesBrock UniversitySaint CatharinesONCanada
- Brock‐Niagara Centre for Health and Well‐BeingBrock UniversitySaint CatharinesONCanada
| | - Terrance J. Wade
- Department of Health SciencesFaculty of Applied Health SciencesBrock UniversitySaint CatharinesONCanada
- Brock‐Niagara Centre for Health and Well‐BeingBrock UniversitySaint CatharinesONCanada
| | - Deborah D. O’Leary
- Department of Health SciencesFaculty of Applied Health SciencesBrock UniversitySaint CatharinesONCanada
- Brock‐Niagara Centre for Health and Well‐BeingBrock UniversitySaint CatharinesONCanada
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6
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Pankratova N, Jović M, Pfeifer ME. Electrochemical sensing of blood proteins for mild traumatic brain injury (mTBI) diagnostics and prognostics: towards a point-of-care application. RSC Adv 2021; 11:17301-17319. [PMID: 34094508 PMCID: PMC8114542 DOI: 10.1039/d1ra00589h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/12/2021] [Indexed: 12/22/2022] Open
Abstract
Traumatic Brain Injury (TBI) being one of the principal causes of death and acquired disability in the world imposes a large burden on the global economy. Mild TBI (mTBI) is particularly challenging to assess due to the frequent lack of well-pronounced post-injury symptoms. However, if left untreated mTBI (especially when repetitive) can lead to serious long-term implications such as cognitive and neuropathological disorders. Computer tomography and magnetic resonance imaging commonly used for TBI diagnostics require well-trained personnel, are costly, difficult to adapt for on-site measurements and are not always reliable in identifying small brain lesions. Thus, there is an increasing demand for sensitive point-of-care (POC) testing tools in order to aid mTBI diagnostics and prediction of long-term effects. Biomarker quantification in body fluids is a promising basis for POC measurements, even though establishing a clinically relevant mTBI biomarker panel remains a challenge. Actually, a minimally invasive, rapid and reliable multianalyte detection device would allow the efficient determination of injury biomarker release kinetics and thus support the preclinical evaluation and clinical validation of a proposed biomarker panel for future decentralized in vitro diagnostics. In this respect electrochemical biosensors have recently attracted great attention and the present article provides a critical study on the electrochemical protocols suggested in the literature for detection of mTBI-relevant protein biomarkers. The authors give an overview of the analytical approaches for transduction element functionalization, review recent technological advances and highlight the key challenges remaining in view of an eventual integration of the proposed concepts into POC diagnostic solutions.
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Affiliation(s)
- Nadezda Pankratova
- University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis), School of Engineering, Institute of Life Technologies, Diagnostic Systems Research Group Route du Rawil 64 1950 Sion Switzerland
| | - Milica Jović
- University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis), School of Engineering, Institute of Life Technologies, Diagnostic Systems Research Group Route du Rawil 64 1950 Sion Switzerland
| | - Marc E Pfeifer
- University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis), School of Engineering, Institute of Life Technologies, Diagnostic Systems Research Group Route du Rawil 64 1950 Sion Switzerland
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7
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Zhang Y, Li X, Di YP. Fast and Efficient Measurement of Clinical and Biological Samples Using Immunoassay-Based Multiplexing Systems. Methods Mol Biol 2020; 2102:129-147. [PMID: 31989552 DOI: 10.1007/978-1-0716-0223-2_6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Immunoassay is one of the most commonly used biomedical techniques to detect the expression of an antibody or an antigen in a test sample. Enzyme-linked immunosorbent assay (ELISA) has been used for a variety of applications including diagnostic tools and quality controls. However, one of the main limitations of ELISA is its lack of multiplexing ability, so ELISA may not be an efficient diagnostic tool when a measurement of multiple determinants is needed for samples with limited quantity such as blood or biological samples from newborns or babies. Although similar to ELISA in assay measurement, multiplex platforms such as bead-based Luminex and multi-array-based MSD (Meso Scale Discovery) are widely used to measure multiple biomarkers from a single analysis. Luminex is a xMAP-based technology that combines several different technologies to provide an efficient and accurate measurement of multiple analytes from a single sample. The multiplexing can be achieved because up to 100 distinct Luminex color-coded microsphere bead sets can be coated with a reagent specific to a particular bioassay, allowing the capture and detection of specific analytes from a sample. Using Multi-array and electrochemiluminescence technologies, the MSD platform provides the multiplex capability with similar consistence as observed in ELISA. Various biological samples that can be analyzed by both Luminex and MSD systems include serum, plasma, tissue and cell lysate, saliva, sputum, and bronchoalveolar Lavage (BAL). The most common Luminex and MSD-based assays are to detect a combined set of cytokines to provide a measurement of cytokine expression profiling for a diagnostic purpose.
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Affiliation(s)
- Yingze Zhang
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xiaoyun Li
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Y Peter Di
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
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Young CNJ, Chira N, Róg J, Al-Khalidi R, Benard M, Galas L, Chan P, Vaudry D, Zablocki K, Górecki DC. Sustained activation of P2X7 induces MMP-2-evoked cleavage and functional purinoceptor inhibition. J Mol Cell Biol 2019; 10:229-242. [PMID: 28992079 DOI: 10.1093/jmcb/mjx030] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/17/2017] [Indexed: 12/11/2022] Open
Abstract
P2X7 purinoceptor promotes survival or cytotoxicity depending on extracellular adenosine triphosphate (ATP) stimulus intensity controlling its ion channel or P2X7-dependent large pore (LP) functions. Mechanisms governing this operational divergence and functional idiosyncrasy are ill-understood. We have discovered a feedback loop where sustained activation of P2X7 triggers release of active matrix metalloproteinase 2 (MMP-2), which halts ion channel and LP responses via the MMP-2-dependent receptor cleavage. This mechanism operates in cells as diverse as macrophages, dystrophic myoblasts, P2X7-transfected HEK293, and human tumour cells. Given that serum-born MMP-2 activity also blocked receptor functions, P2X7 responses in vivo may decrease in organs with permeable capillaries. Therefore, this mechanism represents an important fine-tuning of P2X7 functions, reliant on both cell-autonomous and extraneous factors. Indeed, it allowed evasion from the ATP-induced cytotoxicity in macrophages and human cancer cells with high P2X7 expression levels. Finally, we demonstrate that P2X7 ablation eliminated gelatinase activity in inflamed dystrophic muscles in vivo. Thus, P2X7 antagonists could be used as an alternative to highly toxic MMP inhibitors in treatments of inflammatory diseases and cancers.
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Affiliation(s)
- Christopher N J Young
- School of Allied Health Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester, UK
| | - Natalia Chira
- Molecular Medicine Laboratory, Institute of Biomedical and Biomolecular Sciences, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
| | - Justyna Róg
- Laboratory of Cellular Metabolism, Department of Biochemistry, Nencki Institute of Experimental Biology of the Polish Academy of Sciences, Pasteur Str., Warsaw, Poland
| | - Rasha Al-Khalidi
- Molecular Medicine Laboratory, Institute of Biomedical and Biomolecular Sciences, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
| | - Magalie Benard
- PRIMACEN, Cell Imaging Platform of Normandy, Inserm, IBiSA and PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Mont-Saint-Aignan, France
| | - Ludovic Galas
- PRIMACEN, Cell Imaging Platform of Normandy, Inserm, IBiSA and PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Mont-Saint-Aignan, France
| | - Philippe Chan
- PRIMACEN, Cell Imaging Platform of Normandy, Inserm, IBiSA and PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Mont-Saint-Aignan, France
| | - David Vaudry
- PRIMACEN, Cell Imaging Platform of Normandy, Inserm, IBiSA and PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Mont-Saint-Aignan, France
| | - Krzysztof Zablocki
- Laboratory of Cellular Metabolism, Department of Biochemistry, Nencki Institute of Experimental Biology of the Polish Academy of Sciences, Pasteur Str., Warsaw, Poland
| | - Dariusz C Górecki
- Molecular Medicine Laboratory, Institute of Biomedical and Biomolecular Sciences, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
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Identification of fibrinogen as a natural inhibitor of MMP-2. Sci Rep 2019; 9:4340. [PMID: 30867536 PMCID: PMC6416301 DOI: 10.1038/s41598-019-40983-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 02/14/2019] [Indexed: 02/07/2023] Open
Abstract
Non-genetic MMP-2 insufficiency is a relatively unexplored condition which could be induced by pathological overexpression of endogenous MMP-2 inhibitors such as TIMPs and/or the acute phase reactant alpha-2-macroglobulin. Here, we investigate the hypothesis that human fibrinogen (FBG) – an acute phase reactant – inhibits human MMP-2. Following an unexpected observation where sera from human donors including arthritis patients with increased levels of serum FBG exhibited reduced binding of serum proMMP-2 to gelatin, we found that human FBG (0 to 3.6 mg/mL i.e., 0 to 10.6 μM) concentration-dependently inhibited human proMMP-2 and MMP2 from binding to gelatin. Moreover, at normal physiological concentrations, FBG (5.29–11.8 μM) concentration-dependently inhibited (40–70% inhibition) the cleavage of fluorescein-conjugated gelatin by MMP-2, but not MMP-9. Indicative of a mixed-type (combination of competitive and non-competitive) inhibition mechanism, FBG reduced the Vmax (24.9 ± 0.7 min−1 to 17.7 ± 0.9 min−1, P < 0.05) and increased the Michaelis-Menten constant KM (204 ± 6 nM to 478 ± 50 nM, P < 0.05) for the reaction of MMP-2 cleavage of fluorescein-conjugated gelatin. In silico analyses and studies of FBG neutralization with anti-FBG antibodies implicated the domains D and E of FBG in the inhibition of MMP-2. In conclusion, FBG is a natural selective MMP-2 inhibitor, whose pathological elevation could lead to MMP-2 insufficiency in humans.
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Hou S, Lake R, Park S, Edwards S, Jones C, Jeong KJ. Injectable Macroporous Hydrogel Formed by Enzymatic Cross-Linking of Gelatin Microgels. ACS APPLIED BIO MATERIALS 2018; 1:1430-1439. [PMID: 31701093 DOI: 10.1021/acsabm.8b00380] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Injectable hydrogels can be useful tools for facilitating wound healing since they conform to the irregular shapes of wounds, serving as a temporary matrix during the healing process. However, the lack of inherent pore structures of most injectable hydrogels prohibits desired interactions with the cells of the surrounding tissues limiting their clinical efficacy. Here, we introduce a simple, cost-effective and highly biofunctional injectable macroporous hydrogel made of gelatin microgels crosslinked by microbial transglutaminase (mTG). Pores are created by the interstitial space among the microgels. A water-in-oil emulsion technique was used to create gelatin microgels of an average size of 250μm in diameter. When crosslinked with mTG, the microgels adhered to each other to form a bulk hydrogel with inherent pores large enough for cell migration. The viscoelastic properties of the porous hydrogel were similar to those of nonporous gelatin hydrogel made by adding mTG to a homogeneous gelatin solution. The porous hydrogel supported higher cellular proliferation of human dermal fibroblasts (hDFs) than the nonporous hydrogel over two weeks, and allowed the migration of hDFs into the pores. Conversely, the hDFs were unable to permeate the surface of the nonporous hydrogel. To demonstrate its potential use in wound healing, the gelatin microgels were injected with mTG into a cut out section of an excised porcine cornea. Due to the action of mTG, the porous hydrogel stably adhered to the cornea tissue for two weeks. Confocal images showed that a large number of cells from the cornea tissue migrated into the interstitial space of the porous hydrogel. The porous hydrogel was also used for the controlled release of platelet-derived growth factor (PDGF), increasing the proliferation of hDFs compared to the nonporous hydrogel. This gelatin microgel-based porous hydrogel will be a useful tool for wound healing and tissue engineering.
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Affiliation(s)
- Shujie Hou
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824
| | - Rachel Lake
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824
| | - Shiwha Park
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824
| | - Seth Edwards
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824
| | - Chante Jones
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824
| | - Kyung Jae Jeong
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824
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Kim DTH, Bao DT, Park H, Ngoc NM, Yeo SJ. Development of a novel peptide aptamer-based immunoassay to detect Zika virus in serum and urine. Am J Cancer Res 2018; 8:3629-3642. [PMID: 30026871 PMCID: PMC6037026 DOI: 10.7150/thno.25955] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/24/2018] [Indexed: 12/12/2022] Open
Abstract
Zika virus (ZIKV) has been identified as a cause of adverse outcomes of pregnancy, including microcephaly and other congenital diseases. Most people infected with ZIKV do not show any symptoms. Development of a method to discriminate dengue virus (DENV) and ZIKV infections has been challenging, and efficient assays for patient management are limited, attributable to high levels of cross-reactivity among co-circulating Flaviviruses. Thus, there is an urgent need for a specific high-throughput diagnostic assay to discriminate ZIKV infections from other Flavivirus infections. Methods: A novel epitope peptide of the ZIKV envelope protein was predicted using three immune epitope database analysis tools and then further modified. A molecular docking study was conducted using three-dimensional structures of the ZIKV envelope and peptide. Experimentally, interactions between the selected peptides and virus were assessed via a fluorescence-linked sandwich immunosorbent assay (FLISA), and performance of peptide-linked sandwich FLISA was evaluated in virus-spiked human serum and urine. Results: The Z_10.8 peptide (KRAVVSCAEA) was predicted to be a suitable detector, with a higher binding affinity than other candidates based on four criteria (binding affinity, root mean square deviation, position of amine residue of lysine at the N-terminus, and interactive site) in a docking study. Z_10.8 was significantly more efficient at detecting ZIKV than the other two peptides, as shown in the direct FLISA (P < 0.001). Further, the equilibrium dissociation constant (Kd) for the Z_10.8 peptide was 706.0 ± 177.9 (mean ± SD, nM), with specificity to discriminate ZIKV from DENV. The limit of detection for the sandwich FLISA was calculated as 1×104 tissue culture infective dose (TCID)50/mL. The presence of serum or urine did not interfere with the performance of the Z_10.8-linked sandwich FLISA. Conclusion: Four criteria are suggested for the development of an in silico modeled peptide aptamer; this computerized peptide aptamer discriminated ZIKV from DENV via immunoassay.
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Ilmarinen T, Lont T, Hagström J, Tervahartiala T, Sorsa T, Haglund C, Munck-Wickland E, Ramqvist T, Dalianis T, Aaltonen LM. Systemic matrix metalloproteinase-8 response in chronic tonsillitis. Infect Dis (Lond) 2016; 49:302-307. [DOI: 10.1080/23744235.2016.1248484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Taru Ilmarinen
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Triin Lont
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Hagström
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Translational Cancer Biology, University of Helsinki, Helsinki, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
- Department of Dental Medicine, Karolinska Institutet and Karolinska University Hospital, Huddinge and Stockholm, Sweden
| | - Caj Haglund
- Research Programs Unit, Translational Cancer Biology, University of Helsinki, Helsinki, Finland
- Department of Surgery and Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Eva Munck-Wickland
- Department of Clinical Science, Intervention Technology, Division of ENT Diseases, Karolinska Institutet, Stockholm, Sweden
| | - Torbjörn Ramqvist
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska R8:01, Karolinska University Hospital, Stockholm, Sweden
| | - Tina Dalianis
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska R8:01, Karolinska University Hospital, Stockholm, Sweden
| | - Leena-Maija Aaltonen
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Johnson GJ, Slater BCS, Leis LA, Rector TS, Bach RR. Blood Biomarkers of Chronic Inflammation in Gulf War Illness. PLoS One 2016; 11:e0157855. [PMID: 27352030 PMCID: PMC4924830 DOI: 10.1371/journal.pone.0157855] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 06/06/2016] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND More than twenty years following the end of the 1990-1991 Gulf War it is estimated that approximately 300,000 veterans of this conflict suffer from an unexplained chronic, multi-system disorder known as Gulf War Illness (GWI). The etiology of GWI may be exposure to chemical toxins, but it remains only partially defined, and its case definition is based only on symptoms. Objective criteria for the diagnosis of GWI are urgently needed for diagnosis and therapeutic research. OBJECTIVE This study was designed to determine if blood biomarkers could provide objective criteria to assist diagnosis of GWI. DESIGN A surveillance study of 85 Gulf War Veteran volunteers identified from the Department of Veterans Affairs Minnesota Gulf War registry was performed. All subjects were deployed to the Gulf War. Fifty seven subjects had GWI defined by CDC criteria, and 28 did not have symptomatic criteria for a diagnosis of GWI. Statistical analyses were performed on peripheral blood counts and assays of 61 plasma proteins using the Mann-Whitney rank sum test to compare biomarker distributions and stepwise logistic regression to formulate a diagnostic model. RESULTS Lymphocyte, monocyte, neutrophil, and platelet counts were higher in GWI subjects. Six serum proteins associated with inflammation were significantly different in GWI subjects. A diagnostic model of three biomarkers-lymphocytes, monocytes, and C reactive protein-had a predicted probability of 90% (CI 76-90%) for diagnosing GWI when the probability of having GWI was above 70%. SIGNIFICANCE The results of the current study indicate that inflammation is a component of the pathobiology of GWI. Analysis of the data resulted in a model utilizing three readily measurable biomarkers that appears to significantly augment the symptom-based case definition of GWI. These new observations are highly relevant to the diagnosis of GWI, and to therapeutic trials.
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Affiliation(s)
- Gerhard J. Johnson
- Department of Veterans Affairs Health Care System, Minneapolis, Minnesota, 55417, United States of America
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, 55455, United States of America
| | - Billie C. S. Slater
- Department of Veterans Affairs Health Care System, Minneapolis, Minnesota, 55417, United States of America
| | - Linda A. Leis
- Department of Veterans Affairs Health Care System, Minneapolis, Minnesota, 55417, United States of America
| | - Thomas S. Rector
- Department of Veterans Affairs Health Care System, Minneapolis, Minnesota, 55417, United States of America
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, 55455, United States of America
| | - Ronald R. Bach
- Department of Veterans Affairs Health Care System, Minneapolis, Minnesota, 55417, United States of America
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, 55455, United States of America
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Han SW, Koh WG. Hydrogel-Framed Nanofiber Matrix Integrated with a Microfluidic Device for Fluorescence Detection of Matrix Metalloproteinases-9. Anal Chem 2016; 88:6247-53. [DOI: 10.1021/acs.analchem.5b04867] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sang Won Han
- Department
of Chemical and
Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea
| | - Won-Gun Koh
- Department
of Chemical and
Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea
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Brand KH, Ahout IML, de Groot R, Warris A, Ferwerda G, Hermans PWM. Use of MMP-8 and MMP-9 to assess disease severity in children with viral lower respiratory tract infections. J Med Virol 2012; 84:1471-80. [PMID: 22825827 PMCID: PMC7167016 DOI: 10.1002/jmv.23301] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Matrix metalloproteinases (MMPs) play an important role in respiratory inflammatory diseases, such as asthma and chronic obstructive pulmonary disease. It was hypothesized that MMP-8 and MMP-9 may function as biological markers to assess disease severity in viral lower respiratory tract infections in children. MMP-8 and MMP-9 mRNA expression levels in peripheral blood mononuclear cells (PBMCs) and granulocytes obtained in both the acute and recovery phase from 153 children with mild, moderate, and severe viral lower respiratory tract infections were determined using real-time PCR. In addition, MMP-8 and MMP-9 concentrations in blood and nasopharyngeal specimens were determined during acute mild, moderate, and severe infection, and after recovery using ELISA. Furthermore, PBMCs and neutrophils obtained from healthy volunteers were stimulated with RSV, LPS (TLR4 agonist), and Pam3Cys (TLR2 agonist) in vitro. Disease severity of viral lower respiratory tract infections in children is associated with increased expression levels of the MMP-8 and MMP-9 genes in both PBMCs and granulocytes. On the contrary, in vitro experiments showed that MMP-8 and MMP-9 mRNA and protein expression in PBMCs and granulocytes is not induced by stimulation with RSV, the most frequent detected virus in young children with viral lower respiratory tract infections. These data indicate that expression levels of the MMP-8 and MMP-9 genes in both PBMCs and neutrophils are associated with viral lower respiratory tract infections disease severity. These observations justify future validation in independent prospective study cohorts of the usefulness of MMP-8 and MMP-9 as potential markers for disease severity in viral respiratory infections.
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Affiliation(s)
- Kim H Brand
- Department of Pediatrics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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Le Guillou V, Tamion F, Jouet I, Richard V, Mulder P, Bessou JP, Doguet F. Mesenteric endothelial dysfunction in a cardiopulmonary bypass rat model: the effect of diabetes. Diab Vasc Dis Res 2012; 9:270-9. [PMID: 22278737 DOI: 10.1177/1479164111434432] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Diabetes is a risk factor for perioperative complications after cardiac surgery. We studied its effects on mesenteric endothelial function in a cardiopulmonary bypass (CPB) model. METHODS Forty Wistar rats were divided into four groups: sham (D-CPB-), cardiopulmonary bypass (D-CPB+), diabetic (D+CPB-) and diabetic that have undergone CPB (D+CPB+). Two samples of mesenteric artery were used for nitric oxide synthase (NOS) Western blot analysis, and two others for assessing contractile response and endothelium relaxations. Nitrite products and tumour necrosis factor-alpha (TNF-α) were assessed as markers of inflammatory response. RESULTS We observed an enhanced contractile response to the α-adrenergic agonist associated with impairment of mesenteric vasorelaxation in D+CPB+ rats. Western immunoblot analysis of D+CPB+ highlighted an additive effect of hyper-expression of inducible NOS. A significantly increased inflammatory response was observed after CPB in diabetic animals. CONCLUSIONS This work confirms the potential deleterious impact of diabetes on the mesenteric endothelium during CPB in cardiac surgery.
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Affiliation(s)
- Vincent Le Guillou
- Department of Thoracic and Cardiovascular Surgery, Rouen University Hospital, France
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17
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Zachariah JP, Colan SD, Lang P, Triedman JK, Alexander ME, Walsh EP, Berul CI, Cecchin F. Circulating matrix metalloproteinases in adolescents with hypertrophic cardiomyopathy and ventricular arrhythmia. Circ Heart Fail 2012; 5:462-6. [PMID: 22628530 DOI: 10.1161/circheartfailure.111.966200] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Myocardial fibrosis is a hallmark of hypertrophic cardiomyopathy (HCM) and a risk factor for ventricular arrhythmia. Fibrosis can be reflected in circulating matrix remodeling protein concentrations. We explored differences in circulating markers of extracellular matrix turnover between young HCM patients with versus without history of serious arrhythmia. METHODS AND RESULTS Using multiplexed and single ELISA, matrix metalloproteinases (MMPs) 1, 2, 3, and 9; tissue inhibitor of metalloproteinases (TIMPs) 1, 2, and 4; and collagen I carboxyterminal peptide (CICP) were measured in plasma from 45 young HCM patients (80% male patients; median age, 17 years [interquartile range, 15-20]). Participants were grouped into serious ventricular arrhythmia history (VA) versus no ventricular arrhythmia history (NoVA). Differences in MMPs between groups were examined nonparametrically. Relationships between MMPs and ventricular arrhythmia were assessed with linear regression, adjusted for interventricular septal thickness, family history of sudden death, abnormal exercise blood pressure, and implantable cardioverter-defibrillator (ICD). In post hoc sensitivity analysis, age was substituted for ICD. The 14 VA patients were older than 31 NoVA patients (median, 19 versus 17 years; P=0.03). All 14 VA and 12 NoVA patients had an ICD. MMP3 concentration was significantly higher in the VA group (VA median, 12.9 μg/mL [interquartile range, 5.7-16.7 μg/mL] versus NoVA, 5.8 μg/mL [interquartile range, 3.7-10.0 μg/mL]; P=0.01). On multivariable analysis, VA was independently associated with increasing MMP3 (standardized β, 0.37; P=0.01). Post hoc adjustment for age attenuated this association. CONCLUSIONS Circulating MMP3 may be a marker of ventricular arrhythmia in adolescent patients with HCM. Because of our role as pediatric providers, we cannot exclude age-related confounding.
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Affiliation(s)
- Justin P Zachariah
- Department of Cardiology, Children's Hospital Boston and Department of Pediatrics, Harvard Medical School, 300 Longwood Ave, Boston, MA 02115, USA.
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Assessment of potential cross-reactivity of human endogenous matrix metalloproteinases with collagenase Clostridium histolyticum antibodies in human sera obtained from patients with Dupuytren's contracture. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2012; 19:562-9. [PMID: 22357647 DOI: 10.1128/cvi.00018-12] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Collagenase Clostridium histolyticum (CCH) contains a fixed ratio of class I (AUX-I) and class II (AUX-II) collagenases and is used as treatment for Dupuytren's contracture. These two Zn-dependent enzymes, produced by the Gram-positive bacterium Clostridium histolyticum, are related functionally to matrix metalloproteinases (MMPs) which, among other functions, degrade the extracellular matrix. Since AUX-I and AUX-II exhibit sequence similarities to human MMPs, we assessed MMP-1 (interstitial collagenase), MMP-2 (gelatinase A), MMP-3 (stromelysin 1), MMP-8 (collagenase 2), and MMP-13 (collagenase 3) for cross-reactivity with anti-AUX-I and anti-AUX-II antibodies in patient serum. Serum samples from 71 subjects enrolled in a long-term clinical study (58 males and 13 females; 63 ± 10 years old [mean ± standard error]) were evaluated for cross-reactivity with the five MMPs using the two validated enzyme-linked immunosorbent assays (ELISAs). Inhibition cutoff points for anti-AUX-I and anti-AUX-II antibodies were based on assay inhibition obtained with a nonspecific protein, bovine gamma globulin, which was tested for each clinical sample. No MMP cross-reactivity was found for any of the 71 clinical antibody-positive sera evaluated. Sequence identity assessments indicated minimal, nonmeaningful alignments of the MMPs and AUX-I/AUX-II. Furthermore, clinical adverse event assessments indicated no safety signals related to MMP inhibition. The bioanalytical results, sequence identity, and clinical assessments consistently did not demonstrate cross-reactivity between CCH antidrug antibodies and endogenous human matrix metalloproteinases. The results presented here suggest that treatment of Dupuytren's contracture patients with CCH does not lead to any clinical adverse events associated with MMP inhibition.
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Plasma metalloproteinase levels are dysregulated in signal transducer and activator of transcription 3 mutated hyper-IgE syndrome. J Allergy Clin Immunol 2011; 128:1124-7. [PMID: 21872914 DOI: 10.1016/j.jaci.2011.07.046] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 06/22/2011] [Accepted: 07/14/2011] [Indexed: 11/20/2022]
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Svatek RS, Shah JB, Xing J, Chang D, Lin J, McConkey DJ, Wu X, Dinney CP. A multiplexed, particle-based flow cytometric assay identified plasma matrix metalloproteinase-7 to be associated with cancer-related death among patients with bladder cancer. Cancer 2010; 116:4513-9. [PMID: 20572047 DOI: 10.1002/cncr.25401] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND The current study was conducted to demonstrate the utility of a multiplexed, particle-based flow cytometric assay for the simultaneous analysis of a panel of matrix metalloproteinases (MMPs) using small volumes of plasma samples from patients with bladder cancer. In addition, the authors attempted to test the hypothesis that plasma levels of MMPs are associated with time to cancer-related death. METHODS Plasma MMP concentrations (MMP-1, -2, -3, -7, -8, -9, and -12) in 135 patients presenting with high-grade≥T1 bladder cancer were measured. Data regarding clinical and pathologic features was ascertained in a retrospective fashion. RESULTS The median duration of follow-up was 30.4 months. At the time of analysis, 61 patients had died, including 45 (33.3%) who died of bladder cancer. Plasma MMP-12 was not measurable. For all other MMPs, the intra-assay coefficient of variation varied from 6.12% to 9.82%. MMP-1, -2, -3, -8, and -9 were not found to be significantly associated with time to cancer-related death. Plasma MMP-7 levels were significantly associated with time to cancer-related death after adjustment for competing clinical and pathologic features (hazard ratio [HR], 2.2; 95% confidence interval [95% CI], 1.1-4.5 [P=.022]). The 5-year median cancer-specific survival rates for those patients with MMP-7 levels above and below the median value (300 pg/mL) were 73.6% (95% CI, 60.0-83.2%) and 48.0% (95% CI, 32.5-61.9%), respectively (P=.01). CONCLUSIONS Multiplexed, particle-based flow cytometric assay allows for the high-throughput measurement of multiple plasma or serum proteins simultaneously. By using this new technology in a cohort of patients with bladder cancer, plasma levels of MMP-7 were identified as being significantly associated with time to cancer-related death.
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Affiliation(s)
- Robert S Svatek
- Department of Urologic Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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Breshears LA, Cook JL, Stoker AM, Fox DB. Detection and evaluation of matrix metalloproteinases involved in cruciate ligament disease in dogs using multiplex bead technology. Vet Surg 2010; 39:306-14. [PMID: 20522211 DOI: 10.1111/j.1532-950x.2010.00675.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To measure matrix metalloproteinases (MMPs) suspected to be involved in the initiation or progression of osteoarthritis (OA) in cranial cruciate ligament (CCL) explant culture media using multiplex bead technology. STUDY DESIGN In vitro experimental study. ANIMALS Adult dogs with (n=10) and without (n=10) CCL deficiency. METHODS Based on clinical, radiographic, and gross evidence of CCL deficiency, excised CCL were classified as normal and intact (n=10) or partially torn (n=10). The ligament was excised and immediately placed in tissue culture. Culture media were sampled and replaced on days 3 and 6. MMP-1, 2, 3, 9, and 13 were quantified in explant media using a multiplexing machine that uses flow cytometry, microspheres, spectral dyes, lasers, digital signal processing, and traditional chemistry. MMP concentrations were determined using a standard curve constructed from the serial dilution of positive controls. Media MMP concentrations comparing the type of ligament and the time frame were analyzed using a Mann-Whitney rank sum test. RESULTS Media exposed to intact ligaments had >3 times the amount of MMP-2 than for partially torn ligaments on day 6 (P=.006). Media exposed to intact ligaments also had significantly higher levels of MMP-3 than for partially torn ligaments on day 3 (P=.035) and on day 6 (P=.05). CONCLUSIONS MMP multiplexing is a reliable, cost-effective, efficient, and sample-sparing method of MMP quantification. MMP-2, 3, 9, and 13 are released from CCL explants exposed to culture media and can be detected using multiplex bead technology. CLINICAL RELEVANCE CCL remnants exposed to the intra-articular environment may release degradative enzymes in vivo similar to that demonstrated in this in vitro study. Because MMPs are known to be involved in the initiation and progression of OA, debridement of these remnants as a component of treatment for cruciate disease in dogs deserves consideration.
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Affiliation(s)
- Lee A Breshears
- Comparative Orthopaedic Laboratory, University of Missouri-Columbia, Columbia, MO, USA.
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Martos-Moreno GÁ, Burgos-Ramos E, Canelles S, Argente J, Barrios V. Evaluation of a multiplex assay for adipokine concentrations in obese children. Clin Chem Lab Med 2010; 48:1439-46. [PMID: 20575747 DOI: 10.1515/cclm.2010.276] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Multiplexed bead immunoassays allow simultaneous measurement of adipokines and other hormones in small serum samples, although a validation of this technique with classical methods has not been fully established. The purpose of this pilot study was to compare the characteristics of a multiplexed bead immunoassay obesity panel for insulin and various adipokines with classical methods. METHODS A multiplexed bead immunoassay was performed using serum from 20 obese children at baseline and after reducing their body mass index, and in 25 controls. Insulin, adiponectin, leptin, resistin, tumor necrosis factor-α and interleukin-6 measured by multiplexed bead immunoassay were compared with results obtained from commercial immunoassays. Correlation, sensitivity, recovery, linearity, performance and imprecision were established for each analyte. RESULTS The correlation between methods was acceptable for adiponectin, leptin, and insulin with coefficients of 0.75-0.89 (p<0.001). Correlation was weak for resistin (0.54, p<0.001) and poor (r<0.30) for tumor necrosis factor-α and interleukin-6. However, Bland-Altman analysis indicated agreement for insulin methods (bias=-0.07), avoiding direct comparison with other analytes (bias>1.25). The imprecision was similar for both methods (<13%). Multiplexed immunoassay had a broader dynamic range than classical methods (4.94 times). The magnitude of the changes in serum concentrations after weight loss was comparable with both methods for adiponectin, leptin, insulin and resistin, resulting in similar statistical significance. Changes in tumor necrosis factor-α and interleukin-6 were detected by classical immunoassays only (p<0.05). CONCLUSIONS This study demonstrates that multiplexed bead immunoassay is more cost effective for measurement of adipokines present in relatively large amounts, diminishing inter-assay variations and reducing the sample volume.
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Thrailkill KM, Moreau CS, Cockrell GE, Jo CH, Bunn RC, Morales-Pozzo AE, Lumpkin CK, Fowlkes JL. Disease and gender-specific dysregulation of NGAL and MMP-9 in type 1 diabetes mellitus. Endocrine 2010; 37:336-43. [PMID: 20960272 PMCID: PMC2959192 DOI: 10.1007/s12020-010-9308-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Accepted: 12/23/2009] [Indexed: 01/26/2023]
Abstract
Neutrophil gelatinase-associated lipocalin (NGAL), a biomarker of renal injury, can bind matrix metalloproteinase-9 (MMP-9) and inhibit its degradation, thereby sustaining MMP-9 proteolytic activity. MMP-9 is produced by renal podocytes, and podocyte MMP production can be modified by high ambient glucose levels. Moreover, dysregulation of MMP-9 activity, gene expression, or urine concentrations has been demonstrated in T2DM-associated nephropathy and in non-diabetic proteinuric renal diseases. Our objective was to determine whether NGAL/MMP-9 dysregulation might contribute to or serve as a biomarker of diabetic nephropathy in type 1 DM (T1DM). Plasma MMP-9, and urine NGAL and MMP-9 concentrations were measured in 121 T1DM and 55 control subjects and examined relative to indicators of glycemia, renal function, and degree of albuminuria. T1DM was associated with a significant increase in urinary excretion of both NGAL and MMP-9, and urine NGAL:Cr (NGAL corrected to urine creatinine) and urine MMP-9:Cr concentrations were highly correlated with each other. Both were also positively correlated with measurements of glycemic control and with albuminuria. Plasma MMP-9, urine MMP-9, and urine NGAL concentrations were significantly higher in females compared to males, and urine MMP-9:Cr concentrations displayed a menstrual cycle specific pattern. Increased urinary excretion of NGAL and MMP-9 supports a role for NGAL/MMP-9 dysregulation in renal dysfunction; moreover, gender-specific differences could support a gender contribution to pathological mechanisms or susceptibility for the development of renal complications in diabetes mellitus.
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Affiliation(s)
- Kathryn M Thrailkill
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, 72202, USA.
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Gaubatz JW, Ballantyne CM, Wasserman BA, He M, Chambless LE, Boerwinkle E, Hoogeveen RC. Association of circulating matrix metalloproteinases with carotid artery characteristics: the Atherosclerosis Risk in Communities Carotid MRI Study. Arterioscler Thromb Vasc Biol 2010; 30:1034-42. [PMID: 20167662 DOI: 10.1161/atvbaha.109.195370] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To examine the relationship of plasma levels of matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinase 1 (TIMP-1) with carotid artery characteristics measured by MRI in a cross-sectional investigation among Atherosclerosis Risk in Communities Carotid MRI Study participants. METHODS AND RESULTS A stratified random sample was recruited based on intima-media thickness from a previous ultrasonographic examination. A high-resolution gadolinium-enhanced MRI examination of the carotid artery was performed from 2004 to 2005 on 1901 Atherosclerosis Risk in Communities cohort participants. Multiple carotid wall characteristics, including wall thickness, lumen area, calcium area, lipid core, and fibrous cap measures, were evaluated for associations with plasma MMPs 1, 2, 3, 7, 8, and 9 and TIMP-1. Plasma MMPs 1, 3, and 7 were significantly higher among participants in the high intima-media thickness group compared with those in the low intima-media thickness group. The normalized wall index was independently associated with MMPs 3 and 7 and TIMP-1. MMP-7 was positively associated with carotid calcification. The mean fibrous cap thickness was significantly higher in individuals with elevated TIMP-1 levels. In addition, TIMP-1 was positively associated with measures of lipid core. CONCLUSION Circulating levels of specific MMPs and TIMP-1 were associated with carotid wall remodeling and structural changes related to plaque burden in elderly participants.
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Affiliation(s)
- John W Gaubatz
- Department of Medicine, Baylor College of Medicine, 6565 Fannin St, Houston, TX 77030, USA
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Lopez-Avila V, Spencer JV. Methods for Detection of Matrix Metalloproteinases as Biomarkers in Cardiovascular Disease. Clin Med Cardiol 2008. [DOI: 10.4137/cmc.s484] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Thrailkill KM, Bunn RC, Moreau CS, Cockrell GE, Simpson PM, Coleman HN, Frindik JP, Kemp SF, Fowlkes JL. Matrix metalloproteinase-2 dysregulation in type 1 diabetes. Diabetes Care 2007; 30:2321-6. [PMID: 17563344 PMCID: PMC2239013 DOI: 10.2337/dc07-0162] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Dysregulation of matrix metalloproteinase (MMP)-2 may contribute pathologically to the development of diabetes complications, including diabetic retinopathy and coronary and peripheral arterial disease. Our objective was to explore whether systemic MMP-2 dysregulation could be demonstrated in type 1 diabetes and to determine how MMP-2 concentration relates to disease status. RESEARCH DESIGN AND METHODS In this cross-sectional study, MMP-2 concentrations and MMP-2 activity were measured in plasma and timed urine samples from 93 type 1 diabetic and 50 healthy control subjects, aged 14-40 years. Relationships between MMP-2 concentrations in these biological fluids and subject characteristics (sex, age, and duration of type 1 diabetes), indexes of glycemic control (A1C, fasting plasma glucose, and continuous glucose monitoring system average daily glucose), and measurements of renal function (urinary albumin excretion and glomerular filtration rate) were examined. RESULTS Urine and plasma MMP-2 concentrations and plasma MMP-2 activity were all significantly elevated in type 1 diabetic subjects compared with those in control subjects. Urine MMP-2 concentrations, in particular, were correlated with several clinical parameters that infer increased risk for diabetic comorbidity and specifically for diabetic nephropathy, including higher A1C, longer duration of disease, evidence of renal hyperfiltration, and the presence of microalbuminuria. CONCLUSIONS Urine and plasma MMP-2 concentrations are dysregulated in type 1 diabetes; urinary excretion of MMP-2, in particular, might provide a unique biomarker of diabetes-induced intrarenal pathologic processes.
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Affiliation(s)
- Kathryn M Thrailkill
- Department of Pediatrics, University of Arkansas for Medical Sciences and Arkansas Children's Hospital Research Institute, Little Rock, Arkansas 72202, USA.
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Battersby BJ, Trau M. Optically Encoded Particles and Their Applications in Multiplexed Biomedical Assays. Aust J Chem 2007. [DOI: 10.1071/ch07006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In the future, the rapid discovery of new cures, vaccines, and diagnostics for common diseases will depend on the ability of biomedical researchers to investigate complex mixtures of proteins or DNA. The need to measure the abundance of these entities, together with their level of interaction, has driven the development of new research tools that enable simultaneous analysis of multiple analytes (multiplexing). Optically encoded particles are emerging as the multiplexing tools of choice, especially for clinical research. In this Review, an overview of various new optical encoding methods will be presented, together with important biomedical applications in which particle-based assays are currently being used.
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Lu Z, Wang Y, Zhang Q, Zhang X, Wang S, Xie H, Li Y, Jiao B, Zhang J. Association between the functional polymorphism in the matrix metalloproteinase-7 promoter and susceptibility to adult astrocytoma. Brain Res 2006; 1118:6-12. [PMID: 16956593 DOI: 10.1016/j.brainres.2006.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2006] [Revised: 08/02/2006] [Accepted: 08/04/2006] [Indexed: 12/11/2022]
Abstract
To study the association between the A to G transition at the -181-bp position in the promoter of matrix metalloproteinase-7 gene (MMP-7-181A/G) and susceptibility to adult astrocytoma, the MMP-7-181A/G polymorphism was genotyped by PCR-RFLP analysis among 221 adult astrocytoma patients and 366 healthy controls in a population of northern China. The result showed that the overall distribution of the MMP-7 genotypes among astrocytoma patients and healthy controls was significantly different (P<0.001). Compared with the A/A genotype, the G/G genotype significantly increased the risk to the development of astrocytoma (age and gender adjusted OR=2.77, 95% CI=1.27-6.02), while the MMP-7 A/G genotype only marginally increased the risk of developing this cancer (age and gender adjusted OR=1.66, 95% CI=0.99-2.84). Stratification analysis showed that the G/G genotype significantly increased the risk of astrocytoma only among male subjects (age adjusted OR=3.24, 95% CI=1.12-9.41) and individuals younger than 45 years (age and gender adjusted OR=3.16, 95% CI=1.09-9.16). When stratified by histological grades, a significant higher risk for developing grade II astrocytoma was observed among individuals harboring the A/G genotype (age and gender adjusted OR=2.06, 95% CI=1.05-4.05), while an about 3-fold elevation of risk to develop grades II, III, and IV astrocytomas was observed among individuals with the G/G genotype. The present result, for the first time, suggested that the MMP-7-181A/G polymorphism might be associated with the susceptibility to adult astrocytoma.
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Affiliation(s)
- Zhongqiang Lu
- Department of Neurosurgery, The Second Affiliated Hospital, Hebei Medical University, Hepinglu 205, Shijiazhuang, China.
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Thrailkill K, Cockrell G, Simpson P, Moreau C, Fowlkes J, Bunn RC. Physiological matrix metalloproteinase (MMP) concentrations: comparison of serum and plasma specimens. Clin Chem Lab Med 2006; 44:503-4. [PMID: 16599849 PMCID: PMC2242291 DOI: 10.1515/cclm.2006.090] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Kathryn Thrailkill
- Corresponding author: Kathryn M. Thrailkill, MD, Arkansas Children's Hospital, 800 Marshall St., Slot 512−6, Little Rock, AR 72202, USA Phone: +1−501−364−1430, Fax: +1−501−364−6299, E-mail:
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