KMID : 0624620130460030131
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BMB Reports 2013 Volume.46 No. 3 p.131 ~ p.138
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Impact of tumour associated macrophages in pancreatic cancer
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Mielgo Ainhoa
Schmid Michael C.
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Abstract
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During cancer progression, bone marrow derived myeloid cells, including immature myeloid cells and macrophages, progressively accumulate at the primary tumour site where they contribute to the establishment of a tumour promoting microenvironment. A marked infiltration of macrophagesinto the stromal compartment and the generation of a desmoplastic stromal reaction is a particular characteristic of pancreatic ductal adenocarcinoma (PDA) and is thought to play a key role in disease progression and its response to therapy. Tumour associated macrophages (TAMs) foster PDA tumour progression by promoting angiogenesis, metastasis, and by suppressing an anti-tumourigenic immune response. Recent work also suggests that TAMs contribute to resistance to chemotherapy and to the emergence of cancer stem-like cells. Here we will review the current understanding of the biology and the pro-tumourigenic functions of TAMs in cancer and specifically in PDA, and highlight potential therapeutic strategies to target TAMs and to improve current therapies for pancreatic cancer.
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KEYWORD
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Cancer, Macrophage, Myeloid cells, Pancreatic ductal adenocarcinoma, Tumour microenvironment
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