Experimental Models to Study Tumor–Microenvironment Interactions

A special issue of Biomedicines (ISSN 2227-9059). This special issue belongs to the section "Cell Biology and Pathology".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 2813

Special Issue Editor


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Guest Editor
i3s/IPATIMUP, Institute of Investigation and Innovation in Health, 4200-135 Porto, Portugal
Interests: tumor secretome; pre-metastatic niche; tumor–microenvironment interactions; cancer models; cell adhesion; invasion and metastasis; breast cancer brain metastases

Special Issue Information

Dear Colleagues,

This Special Issue will focus on the currently available experimental models (in vitro, ex-vivo, and in vivo) used to study the paracrine communication between cancer cells and all different components of the tumor microenvironment.

The interaction between tumor cells and the different components of their microenvironment is bidirectional. Recent advances have shown that an understanding of the complex interactions of tumor cells with their adjacent microenvironment (composed of soluble and cellular components) are crucial to understand the mechanisms involved in tumor progression, such as epithelial–mesenchymal transition (EMT), migration, invasion (i.e., migration through connective tissue), metastasis formation, neovascularization, apoptosis, and chemotherapeutic drug resistance.

In order to understand the complex interaction between cancer cells and their microenvironment, it is fundamental to have the appropriate tools to study this process. Thus, in this Special Issue we aim to gather publications that focus on experimental models to study tumor–microenvironment interactions. Authors are invited to submit their original research, communications, and review articles under this topic.

Dr. Ana Sofia Ribeiro
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Keywords

  • in vitro models
  • ex-vivo models
  • in vivo models
  • cancer models
  • microenvironment
  • metastatic niche
  • immunomodulation

Published Papers (1 paper)

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Research

12 pages, 3468 KiB  
Article
Tumor-Released Products Promote Bone Marrow-Derived Macrophage Survival and Proliferation
by Juliana Maria Motta, Vivian Mary Rumjanek, Alberto Mantovani and Massimo Locati
Biomedicines 2021, 9(10), 1387; https://doi.org/10.3390/biomedicines9101387 - 4 Oct 2021
Cited by 4 | Viewed by 2383
Abstract
Macrophages play a central role within the tumor microenvironment, with relevant implications for tumor progression. The modulation of their phenotype is one of the mechanisms used by tumors to escape from effective immune responses. This study was designed to analyze the influence of [...] Read more.
Macrophages play a central role within the tumor microenvironment, with relevant implications for tumor progression. The modulation of their phenotype is one of the mechanisms used by tumors to escape from effective immune responses. This study was designed to analyze the influence of soluble products released by tumors, here represented by the tumor-conditioned media of two tumor cell lines (3LL from Lewis lung carcinoma and MN/MCA from fibrosarcoma), on murine macrophage differentiation and polarization in vitro. Data revealed that tumor-conditioned media stimulated macrophage differentiation but influenced the expression levels of macrophage polarization markers, cytokine production, and microRNAs of relevance for macrophage biology. Interestingly, tumor-derived soluble products supported the survival and proliferation rate of bone marrow precursor cells, an effect observed even with mature macrophages in the presence of M2 but not M1 inducers. Despite presenting low concentrations of macrophage colony-stimulating factor (M-CSF), tumor-conditioned media alone also supported the proliferation of cells to a similar extent as exogenous M-CSF. This effect was only evident in cells positive for the expression of the M-CSF receptor (CD115) and occurred preferentially within the CD16+ subset. Blocking CD115 partially reversed the effect on proliferation. These results suggest that tumors release soluble products that not only promote macrophage development from bone marrow precursors but also stimulate the proliferation of cells with specific phenotypes that could support protumoral functions. Full article
(This article belongs to the Special Issue Experimental Models to Study Tumor–Microenvironment Interactions)
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