Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression
Neutrophils are the most abundant circulating leukocytes in humans. Neutrophil infiltration into tumor tissues has long been observed but its roles have been ignored due to the presumed short life cycle and metabolic incompetence of neutrophils. Recent advances in neutrophil biology research have re...
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| Format: | Article |
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MDPI AG
2020-05-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/21/10/3457 |
| _version_ | 1797568034167062528 |
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| author | Naofumi Mukaida So-ichiro Sasaki Tomohisa Baba |
| author_facet | Naofumi Mukaida So-ichiro Sasaki Tomohisa Baba |
| author_sort | Naofumi Mukaida |
| collection | DOAJ |
| description | Neutrophils are the most abundant circulating leukocytes in humans. Neutrophil infiltration into tumor tissues has long been observed but its roles have been ignored due to the presumed short life cycle and metabolic incompetence of neutrophils. Recent advances in neutrophil biology research have revealed that neutrophils have a longer life cycle with a potential to express various bioactive molecules. Clinical studies have simultaneously unraveled an increase in the neutrophil–lymphocyte ratio (NLR), a ratio of absolute neutrophil to absolute lymphocyte numbers in cancer patient peripheral blood and an association of higher NLR with more advanced or aggressive disease. As a consequence, tumor-associated neutrophils (TANs) have emerged as important players in tumor microenvironment. The elucidation of the roles of TANs, however, has been hampered by their multitude of plasticity in terms of phenotypes and functionality. Difficulties are further enhanced by the presence of a related cell population—polymorphonuclear leukocyte (PMN)-myeloid-derived suppressor cells (MDSCs)—and various dissimilar aspects of neutrophil biology between humans and mice. Here, we discuss TAN biology in various tumorigenesis processes, and particularly focus on the context-dependent functional heterogeneity of TANs. |
| first_indexed | 2024-03-10T19:50:37Z |
| format | Article |
| id | doaj.art-6df6bc1f79404b1b84460c4e1469db39 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T19:50:37Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
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| series | International Journal of Molecular Sciences |
| spelling | doaj.art-6df6bc1f79404b1b84460c4e1469db392023-11-20T00:26:35ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-05-012110345710.3390/ijms21103457Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and ProgressionNaofumi Mukaida0So-ichiro Sasaki1Tomohisa Baba2Division of Molecular Bioregulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, JapanDivision of Molecular Bioregulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, JapanDivision of Molecular Bioregulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, JapanNeutrophils are the most abundant circulating leukocytes in humans. Neutrophil infiltration into tumor tissues has long been observed but its roles have been ignored due to the presumed short life cycle and metabolic incompetence of neutrophils. Recent advances in neutrophil biology research have revealed that neutrophils have a longer life cycle with a potential to express various bioactive molecules. Clinical studies have simultaneously unraveled an increase in the neutrophil–lymphocyte ratio (NLR), a ratio of absolute neutrophil to absolute lymphocyte numbers in cancer patient peripheral blood and an association of higher NLR with more advanced or aggressive disease. As a consequence, tumor-associated neutrophils (TANs) have emerged as important players in tumor microenvironment. The elucidation of the roles of TANs, however, has been hampered by their multitude of plasticity in terms of phenotypes and functionality. Difficulties are further enhanced by the presence of a related cell population—polymorphonuclear leukocyte (PMN)-myeloid-derived suppressor cells (MDSCs)—and various dissimilar aspects of neutrophil biology between humans and mice. Here, we discuss TAN biology in various tumorigenesis processes, and particularly focus on the context-dependent functional heterogeneity of TANs.https://www.mdpi.com/1422-0067/21/10/3457chemokineCXCR2CXCR4granulocyte-colony stimulating factor (G–CSF), interleukin-17myeloid-derived suppressor cell |
| spellingShingle | Naofumi Mukaida So-ichiro Sasaki Tomohisa Baba Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression International Journal of Molecular Sciences chemokine CXCR2 CXCR4 granulocyte-colony stimulating factor (G–CSF), interleukin-17 myeloid-derived suppressor cell |
| title | Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression |
| title_full | Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression |
| title_fullStr | Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression |
| title_full_unstemmed | Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression |
| title_short | Two-Faced Roles of Tumor-Associated Neutrophils in Cancer Development and Progression |
| title_sort | two faced roles of tumor associated neutrophils in cancer development and progression |
| topic | chemokine CXCR2 CXCR4 granulocyte-colony stimulating factor (G–CSF), interleukin-17 myeloid-derived suppressor cell |
| url | https://www.mdpi.com/1422-0067/21/10/3457 |
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