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Zhang D, Zhou J, Tang D, Zhou L, Chou L, Chou KY, Tao L, Lu LM. Neutrophil infiltration mediated by CXCL5 accumulation in the laryngeal squamous cell carcinoma microenvironment: A mechanism by which tumour cells escape immune surveillance. Clin Immunol 2016; 175:34-40. [PMID: 27876461 DOI: 10.1016/j.clim.2016.11.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 11/17/2016] [Accepted: 11/18/2016] [Indexed: 12/17/2022]
Abstract
The CXCL5 chemokine is important for neutrophil accumulation in tumour tissues. In this report, we attempted to clarify whether and how infiltrating tumour-associated neutrophils (TANs) in laryngeal squamous cell carcinoma (LSCC) affect the proliferation and activation of T cells. We examined chemokine expression by real-time PCR (RT-PCR) and enzyme-linked immunosorbent assay (ELISA) and performed an immunohistochemical analysis of LSCC microarrays. The relationship between CXCL5 and CD66b (a neutrophil marker) was investigated by immunofluorescence staining. We found that CXCL5 was upregulated in LSCC tissues, whereas CXCL5 levels were decreased in LSCC patient serum. Furthermore, high levels of CXCL5 were significantly correlated with intratumoural neutrophil infiltration. Compared with peripheral blood neutrophils (PBNs), TANs significantly inhibited T cell proliferation and decreased IFN-γ and TNF-α secretion. These data suggest that excessive neutrophil infiltration is associated with advanced clinical stages of LSCC (T3 or T4, III or IV, and N1 or N2).
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Affiliation(s)
- Duo Zhang
- Department of Otolaryngology-HNS, Eye, Ear, Nose and Throat Hospital, Shanghai Key Clinical Disciplines of Otorhinolaryngology, Fudan University School of Medicine, 83 Fenyang Road, Shanghai 200031, China; Department of Pudong Hospital, Fudan University School of Medicine, 2800 Gongwei Road, Shanghai 201300, China
| | - Jian Zhou
- Department of Otolaryngology-HNS, Eye, Ear, Nose and Throat Hospital, Shanghai Key Clinical Disciplines of Otorhinolaryngology, Fudan University School of Medicine, 83 Fenyang Road, Shanghai 200031, China; Department of Pudong Hospital, Fudan University School of Medicine, 2800 Gongwei Road, Shanghai 201300, China
| | - Di Tang
- Department of Otolaryngology-HNS, Eye, Ear, Nose and Throat Hospital, Shanghai Key Clinical Disciplines of Otorhinolaryngology, Fudan University School of Medicine, 83 Fenyang Road, Shanghai 200031, China; Department of Pudong Hospital, Fudan University School of Medicine, 2800 Gongwei Road, Shanghai 201300, China
| | - Lin Zhou
- Shanghai Institute of Immunology, Shanghai Jiaotong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Liang Chou
- Department of Otolaryngology-HNS, Eye, Ear, Nose and Throat Hospital, Shanghai Key Clinical Disciplines of Otorhinolaryngology, Fudan University School of Medicine, 83 Fenyang Road, Shanghai 200031, China; Department of Pudong Hospital, Fudan University School of Medicine, 2800 Gongwei Road, Shanghai 201300, China
| | - Kuang-Yen Chou
- Shanghai Institute of Immunology, Shanghai Jiaotong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Lei Tao
- Department of Otolaryngology-HNS, Eye, Ear, Nose and Throat Hospital, Shanghai Key Clinical Disciplines of Otorhinolaryngology, Fudan University School of Medicine, 83 Fenyang Road, Shanghai 200031, China; Department of Pudong Hospital, Fudan University School of Medicine, 2800 Gongwei Road, Shanghai 201300, China.
| | - Li-Ming Lu
- Shanghai Institute of Immunology, Shanghai Jiaotong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China.
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