New Insight into Tumor–Tumor Microenvironment Crosstalk

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell Microenvironment".

Deadline for manuscript submissions: closed (31 May 2025) | Viewed by 494

Special Issue Editors


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Guest Editor
Department of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, Chałubińskiego 6a St, 50-368 Wrocław, Poland
Interests: cancer biology; cell proliferation; cancer biomarkers; tumor microenvironment; immunohistochemistry; histology
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, Chałubińskiego 6a St, 50-368 Wrocław, Poland
Interests: cancer biology; cell proliferation; cancer biomarkers; tumor microenvironment; immunohistochemistry; histology

Special Issue Information

Dear Colleagues,

The tumor–microenvironment crosstalk is a symphony of cellular and molecular interactions that profoundly influence the behavior of cancer. This Special Issue aims to unravel the complex dialogue occurring at the interface of tumor cells and their surrounding milieu, a critical component of cancer progression. The dynamic interplay encompasses a multitude of factors, from the secretion of signaling molecules that modulate immune responses to the metabolic reprogramming that supports tumor growth. We will delve into the latest insights that highlight the reciprocal relationships between cancer cells and their microenvironment, including the role of extracellular matrix remodeling, the influence of immune cells on tumorigenicity, and the metabolic symbiosis that sustains the tumor's voracious demands. Understanding these cellular and molecular mechanisms is essential for deciphering the tumor's ability to adapt and thrive, offering avenues for the development of novel therapeutic strategies that target the very foundations of cancer's survival.

Both comprehensive reviews and original articles are welcome.

Prof. Dr. Piotr Dziegiel
Dr. Karolina Jablonska
Guest Editors

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Keywords

  • tumor–microenvironment interaction
  • cancer therapy
  • signaling
  • extracellular matrix
  • immune cells
  • cell networks
  • tumorigenesis
  • cancer metabolism
  • tumor cell plasticity

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Published Papers (1 paper)

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Research

12 pages, 1464 KiB  
Communication
Role of Kindlin-2-Expressing Extracellular Vesicles in the Invasiveness of Triple Negative Breast Cancer Tumor Cells
by Neelum Aziz Yousafzai, Mark F. Santos, Yeaji Kim, Nofar Avihen Schahaf, Kim Zielke, Lucia Languino, Khalid Sossey-Alaoui and Aurelio Lorico
Cells 2025, 14(13), 1034; https://doi.org/10.3390/cells14131034 - 7 Jul 2025
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Abstract
Metastatic breast cancer (BC) is a major cause of cancer-related deaths among women. Its progression is influenced by extracellular vesicles (EVs) released by BC cells, which modulate distant tissue environments to promote metastasis. We previously identified the oncogenic protein Kindlin-2 (K2) as a [...] Read more.
Metastatic breast cancer (BC) is a major cause of cancer-related deaths among women. Its progression is influenced by extracellular vesicles (EVs) released by BC cells, which modulate distant tissue environments to promote metastasis. We previously identified the oncogenic protein Kindlin-2 (K2) as a key driver of BC metastasis, including its role in the nucleus in regulating cell senescence. Here, we investigated whether K2-containing EVs facilitate both autologous (cancer-to-cancer) and heterologous (cancer-to-stroma) communication to promote metastasis. We found that 10–15% of EVs from metastatic BC cells contained K2, while this subpopulation was nearly absent in the EVs from K2-knockout (KO) cells, indicating selective packaging. These EVs transferred K2 to recipient K2-KO cells, where they accumulated in the nucleus. Using a 3D tumorsphere assay, we showed that K2+ EVs enhanced cancer cell invasiveness. Moreover, K2+ EVs activated fibroblasts into a cancer-associated phenotype, increasing α-SMA and FAP expression. Conditioned media from these activated fibroblasts further boosted cancer cell invasion. These results show that EV-associated K2 is actively transferred to recipient cells and regulates metastasis through nuclear signaling, suggesting K2+ EVs are critical mediators of BC progression and potential targets for therapy. Full article
(This article belongs to the Special Issue New Insight into Tumor–Tumor Microenvironment Crosstalk)
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