Purpose: The purpose of this study is to investigate matrix metalloproteinases (MMPs) expression in human intraocular lymphoma (IOL).
Methods: Two enucleated eyes and seven cell-block samples obtained from patients with IOL who underwent vitrectomy were used. Immunopathological examinations were performed for detection of MMP-2, MMP-9, and TIMP-4 expressions.
Results: In the enucleated eye with primary IOL (PIOL), MMP-2 was negative, and MMP-9 and TIMP-4 were positive in the lymphoma cells, while in the enucleated eye with secondary IOL (SIOL), all the molecules were positive. Among the cell-block samples with PIOL, the positive rate in lymphoma cells of MMP-2, MMP-9, and TIMP-4 was 75%, 100%, and 75%, respectively. In the cell-block samples with SIOL, the positive rates of MMP-2, MMP-9, and TIMP-4 were all 100%.
Conclusions: MMP-2, MMP-9, and TIMP-4 were expressed in lymphoma cells using the specimens of human IOL, suggesting that MMPs may play an important role in the development of IOL.
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http://dx.doi.org/10.1080/09273948.2021.1957122 | DOI Listing |
Int Immunopharmacol
January 2025
Immunoregulation Research Center, Shahed University, Tehran, Iran; Department of Immunology, Shahed University, Tehran, Iran. Electronic address:
Sulfur mustard (SM), a chemical weapon used in the Iraq-Iran war, can pose severe health risks, especially to the lungs. Dysregulation of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) have been implicated in various inflammatory lung diseases. This study compares the levels of MMPs and TIMPs in the serum and sputum of veterans with serious lung complications to a control group.
View Article and Find Full Text PDFBrain Behav Immun
February 2025
Department of Psychiatry, RCSI University of Medicine and Health Sciences, Dublin, Ireland; FutureNeuro Research Centre, RCSI University of Medicine and Health Sciences, Dublin, Ireland.
Background: Converging evidence supports the role of Matrix Metalloproteinases (MMPs) in psychiatric disorders. Originally identified as regulators of the extracellular matrix (ECM), MMPs' functions span multiple processes, including inflammation, synaptic plasticity, neuronal migration, and blood-brain barrier maintenance. Tissue Inhibitors of Metalloproteinases (TIMPs) are major regulators of MMPs.
View Article and Find Full Text PDFMed Sci Monit
May 2024
Department of Pediatric Infectious Diseases, Medical University of Białystok, Białystok, Poland.
BACKGROUND COVID-19 manifests with varying degrees of severity across different age groups; adults typically experience more severe symptoms than children. Matrix metalloproteinases (MMPs), known for their role in tissue remodeling and immune responses, may contribute to the pathophysiological disparities observed between these groups. We sought to delineate differences in serum MMP profiles between adult and pediatric COVID-19 patients, assess the influence of anti-inflammatory treatment on MMP levels, and examine potential implications for long-term consequences.
View Article and Find Full Text PDFDiagnostics (Basel)
March 2024
Department of Morphology, Institute of Anatomy and Anthropology, Riga Stradiņš University, LV-1007 Riga, Latvia.
Background: An acquired cholesteatoma is a benign but locally aggressive lesion in the middle ear. It is characterized by chronic inflammation and the destruction of surrounding bone. Therefore, the aim of this study was to compare defensins HβD-2 and HβD-4; pro- and anti-inflammatory cytokines IL-1α and IL-10; proliferation marker Ki-67; transcription factor NF-κβ; angiogenetic factor VEGF; Sonic hedgehog gene protein SHH; and remodeling factors MMP-2, MMP-9, TIMP-2, and TIMP-4 in adult and pediatric cholesteatoma tissue, and to compare these groups with control skin tissue.
View Article and Find Full Text PDFAm J Cardiovasc Dis
February 2024
Department of Cardiology, The Second Affiliated Hospital, Army Medical University (Third Military Medical University) Chongqing 400037, China.
Objective: To evaluate the impact of varying dosages of Spironolactone on the short-term effectiveness and ventricular remodeling indicators in patients with Heart Failure of Ischemic Cardiomyopathy (HFIC).
Methods: A cohort of 141 HFIC patients, admitted to our hospital between October 2018 and February 2023, were enrolled for this study. Alongside the standard treatment for Chronic Congestive Heart Failure (CHF), these patients were randomly assigned to either a low-dose (20 mg/d, N=70) or a high-dose (60 mg/d, N=71) Spironolactone group.
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