ArticleVirchows Archiv : an international journal of pathology2019
Transient receptor potential vanilloid (TRPV) channel expression in meningiomas: prognostic and predictive significance.
Article in Virchows Archiv : an international journal of pathology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- Machine learning for predicting post-operative outcomes in meningiomas: a systematic review and meta-analysis.Acta neurochirurgica · 2024Pooled it
- Inflammation-induced TRPV4 channels exacerbate blood-brain barrier dysfunction in multiple sclerosis.Journal of neuroinflammation · 2024Article
- The role of TRPV4 in programmed cell deaths.Molecular biology reports · 2024Review
- Heat shock factor 1 in brain tumors: a link with transient receptor potential channels TRPV1 and TRPA1.Journal of molecular histology · 2021Article
- Evaluation of AQP4/TRPV4 Channel Co-expression, Microvessel Density, and its Association with Peritumoral Brain Edema in Intracranial Meningiomas.Journal of molecular neuroscience : MN · 2021Article
- The TRPV2 cation channels: from urothelial cancer invasiveness to glioblastoma multiforme interactome signature.Laboratory investigation; a journal of technical methods and pathology · 2020Review
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Authors and funding
7 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The TRPV1-4 members of TRPV cation channel subfamily are mainly regarded as polymodal receptors that may be activated by diverse changes in cellular microenvironment and endogenous and exogenous agents. Abnormal expression of these channels has been reported in various tumors but not in meningiomas. Meningioma cells are thought to originate from arachnoid cap cells due to cytological and functional similarities between the two types of cells. To investigate the expression profile of TRPV1-4 channels in meningiomas and compare with TRPV1-4 channel expression in leptomeninges, we used immunohistochemistry in formalin-fixed, paraffin-embedded semi-serial tissue sections from 175 meningiomas with different grades and histological subtypes, and normal brain or meningioma specimens that contained leptomeninges. The labeling index (LI), defined as the percentage of positive (labeled) cells out of the total number of tumor cells counted, was determined. Leptomeninges were TRPV1-4 immunonegative. A significant percentage of tumors exhibited TRPV1-4 channel expression which was independent of the proliferation index of the tumors but was significantly associated with histopathological subtypes. The TRPV1 and TRPV3 immunoexpression was decreased whereas TRPV4 immunoexpression was significantly greater in high-grade (WHO, grade II and III) as compared with low-grade (WHO, grade I) meningiomas. Additionally, TRPV4 emerged as an independent predictor for the degree of malignancy using the binary logistic regression model [dependent variable: grade I versus higher grades (II and III)]. Kaplan-Meier analysis for 102 patients showed no significant association of TRPV1-4 expression with overall survival. The above data support that TRPV1-4 channels are implicated in meningioma pathogenesis, and TRPV4 has predictive significance in the disease.
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