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Tumor Microenvironment: Molecular Mechanism and Signaling Pathway Involved in Cancer Metastasis

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Oncology".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2284

Special Issue Editors


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Guest Editor
Translational Medical Oncology, CIBERONC, Health Research Institute of Santiago (IDIS), University Hospital of Santiago (SERGAS), 15706 Santiago de Compostela, Spain
Interests: gynecological oncology; endometrial cancer; metastasis; translational research; biomarkers.
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Translational Medical Oncology, CIBERONC, Health Research Institute of Santiago (IDIS), University Hospital of Santiago (SERGAS), 15706 Santiago de Compostela, Spain
Interests: cell biology; cancer research

Special Issue Information

Dear Colleagues,

Tumors are highly complex entities composed of a plethora of cell types, which altogether comprise what we call the “tumor microenvironment” (TME). Such an ecosystem contains immune, endothelial or nerve cells, as well as fibroblasts, which dynamically interact with cancer cells both at the physical and biochemical levels. Such interactions lead to acute and chronic alterations in the phenotypic characteristics of cancer and non-cancer cells, ultimately affecting tumor progression. Of particular relevance is the effect that the TME exerts over the migratory and invasive capacities of cancer cells, regulating regional and distant tumor dissemination through metastasis formation, a key feature that determines the survival of cancer patients. Understanding the TME-related mechanisms and signaling pathways related to tumor invasion and metastatic dissemination, as well as immunosuppression and therapy resistance, will provide a more detailed view of the biology of tumor progression and an opportunity to design new therapeutic approaches, specifically tackling metastasis formation.

For this Special Issue of the International Journal of Molecular Sciences, we invite authors to submit original and review articles that provide new insights on how the TME influences tumor dissemination and metastasis. Articles covering new findings on TME-related mechanisms altering cancer motility, invasion, angiogenesis, hematogenous, or lymphatic dissemination, as well as immune evasion or therapy resistance, are welcomed.

Dr. Miguel Abal
Dr. Jorge Barbazán
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Published Papers (1 paper)

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Research

25 pages, 7140 KiB  
Article
Single-Cell RNA-Seq Analysis Reveals Ferroptosis in the Tumor Microenvironment of Clear Cell Renal Cell Carcinoma
by Jing Zhang, Yun Deng, Hui Zhang, Zhiyuan Zhang, Xin Jin, Yan Xuan, Zhen Zhang and Xuejun Ma
Int. J. Mol. Sci. 2023, 24(10), 9092; https://doi.org/10.3390/ijms24109092 - 22 May 2023
Viewed by 2001
Abstract
In this study, we investigated the role of ferroptosis in the tumor microenvironment (TME) of clear cell renal cell carcinoma (ccRCC), the leading cause of renal cancer-related death. We analyzed single-cell data from seven ccRCC cases to determine cell types most correlated with [...] Read more.
In this study, we investigated the role of ferroptosis in the tumor microenvironment (TME) of clear cell renal cell carcinoma (ccRCC), the leading cause of renal cancer-related death. We analyzed single-cell data from seven ccRCC cases to determine cell types most correlated with ferroptosis and performed pseudotime analysis on three myeloid subtypes. We identified 16 immune-related ferroptosis genes (IRFGs) by analyzing differentially expressed genes between cell subgroups and between high and low immune infiltration groups in the TCGA-KIRC dataset and the FerrDb V2 database. Using univariate and multivariate Cox regression, we identified two independent prognostic genes, AMN and PDK4, and constructed an IRFG score model immune-related ferroptosis genes risk score (IRFGRs) to evaluate its prognostic value in ccRCC. The IRFGRs demonstrated excellent and stable performance for predicting ccRCC patient survival in both the TCGA training set and the ArrayExpress validation set, with an AUC range of 0.690–0.754, outperforming other commonly used clinicopathological indicators. Our findings enhance the understanding of TME infiltration with ferroptosis and identify immune-mediated ferroptosis genes associated with prognosis in ccRCC. Full article
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