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Tumor-associated macrophages (TAM) as major players of the cancer-related inflammation

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TLDR
The microenvironment of solid tumors is characterized by a reactive stroma with an abundance of inflammatory mediators and leukocytes, dysregulated vessels and proteolytic enzymes, which makes TAM an attractive target of novel biological therapies of tumors.
Abstract
The microenvironment of solid tumors is characterized by a reactive stroma with an abundance of inflammatory mediators and leukocytes, dysregulated vessels and proteolytic enzymes TAM, major players in the connection between inflammation and cancer, summarize a number of functions (eg, promotion of tumor cell proliferation and angiogenesis, incessant matrix turnover, repression of adaptive immunity), which ultimately have an important impact on disease progression Thus, together with other myeloid-related cells present at the tumor site (Tie2 macrophages and MDSCs), TAM represent an attractive target of novel biological therapies of tumors

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Journal ArticleDOI

Tumor angiogenesis: molecular pathways and therapeutic targets

TL;DR: A durable and efficient antiangiogenic response will require approaches to simultaneously or sequentially target multiple aspects of the tumor microenvironment.
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Tumor-associated macrophages as major players in the tumor microenvironment.

TL;DR: An overview of mechanisms responsible for TAM recruitment is presented and the roles of TAMs in the regulation of tumor angiogenesis, invasion, metastasis, immunosuppression, and chemotherapeutic resistance are highlighted.
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The polarization of immune cells in the tumour environment by TGFβ

TL;DR: The hypothesis that blocking TGFβ-induced signalling in the tumour microenvironment enhances antitumour immunity and may be beneficial for cancer therapy is favoured.
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Macrophages in tumor microenvironments and the progression of tumors.

TL;DR: Macrophages are widely distributed innate immune cells that play indispensable roles in the innate and adaptive immune response to pathogens and in-tissue homeostasis and mediating macrophage to resist tumors is considered to be potential therapy.
References
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Journal ArticleDOI

Inflammation and cancer

TL;DR: It is now becoming clear that the tumour microenvironment, which is largely orchestrated by inflammatory cells, is an indispensable participant in the neoplastic process, fostering proliferation, survival and migration.
Journal ArticleDOI

Cancer-related inflammation.

TL;DR: The molecular pathways of this cancer-related inflammation are now being unravelled, resulting in the identification of new target molecules that could lead to improved diagnosis and treatment.
Journal ArticleDOI

Inflammation and cancer: back to Virchow?

TL;DR: A rationale for the use of cytokine and chemokine blockade, and further investigation of non-steroidal anti-inflammatory drugs, in the chemoprevention and treatment of malignant diseases is provided.
Journal ArticleDOI

Alternative activation of macrophages

TL;DR: The evidence in favour of alternative macrophage activation by the TH2-type cytokines interleukin-4 (IL-4) and IL-13 is assessed, and its limits and relevance to a range of immune and inflammatory conditions are defined.
Journal ArticleDOI

New functions for the matrix metalloproteinases in cancer progression

TL;DR: It is shown that the MMPs have functions other than promotion of invasion, have substrates other than components of the extracellular matrix, and that they function before invasion in the development of cancer.
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