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Jiang H, Liu Y, Zhou R, Feng Y, Yan L. Circulating interleukins and risk of colorectal cancer: a Mendelian randomization study. Scand J Gastroenterol 2023; 58:1466-1473. [PMID: 37525405 DOI: 10.1080/00365521.2023.2240928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/11/2023] [Accepted: 07/20/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Recent studies have suggested a potential causal association between Interleukins (ILs) and Colorectal Cancer (CRC), and thus, it is important to examine the causal relationship between them using a Mendelian randomization (MR) approach. METHODS The instrumental variables were extracted for IL-1ra, IL-6, IL-6ra, IL-8, IL-16, IL-18, IL-27 from genome-wide association studies of European ancestry. Summary statistics of CRC were also retrieved. An inverse variance-weighted MR approach was implemented as the primary method to compute overall effects from multiple instruments. Additional MR approaches and sensitivity and heterogeneity pleiotropy analyses were also conducted respectively. RESULTS Our analysis suggested a causal effect between an increase of IL-8 and a reduced risk of CRC (odds ratio 0.65; 95% confidence interval, 0.43-0.98; p = 0.041) and did not provide evidence for causal effects of IL-1ra, IL-6, IL-6ra, IL-16, IL-18, IL-27. Sensitivity analyses suggested the robustness of MR results and that they were unlikely to be affected by unbalanced pleiotropy or significant heterogeneity. CONCLUSIONS This study investigated the role of ILs in the development of CRC and we found a causal effect between an increase of IL-8 and a reduced risk of CRC but not found evidence for causal effects of IL-1ra, IL-6, IL-6ra, IL-16, IL-18, IL-27. Sensitivity analyses suggested the robustness of MR results and that they were unlikely to be affected by unbalanced pleiotropy or significant heterogeneity.
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Affiliation(s)
- Haifeng Jiang
- Department of General Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yongming Liu
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Ru Zhou
- Department of General Surgery, RuiJin Hospital LuWan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yu Feng
- Department of General Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liang Yan
- Department of General Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Chen Z, Wang K, Guo J, Zhou J, Loor JJ, Yang Z, Yang Y. Melatonin Maintains Homeostasis and Potentiates the Anti-inflammatory Response in Staphylococcus aureus-Induced Mastitis through microRNA-16b/YAP1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15255-15270. [PMID: 36399659 DOI: 10.1021/acs.jafc.2c05904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Staphylococcus aureus is a highly infectious pathogen and is a considerable threat to food hygiene and safety. Although melatonin is thought to exert an ameliorative effect on bovine mastitis, the regulatory mechanisms are unclear. In this study, we first verified the therapeutic effect of melatonin against S. aureus in vitro and in vivo, a screening of differentially expressed miRNAs and mRNAs among the blank, and S. aureus and melatonin + S. aureus groups by high-throughput sequencing identified miR-16b and YAP1, which exhibited 1.95-fold upregulated and 1.05-fold downregulated expression, respectively. Moreover, epigenetic studies showed that S. aureus inhibited miR-16b expression by methylation (increased DNMT1 expression). Additionally, the DNMT1 expression level was significantly decreased by melatonin treatment, which might indicate that the inhibition of DNMT1 by melatonin reduces the effect of S. aureus on miR-16b. The flow cytometry, scanning and transmission electron microscopy, EdU assay, and cell morphology results indicated that miR-16b in bovine mammary epithelial cells (in vitro) and in mice (in vivo) can modulate the maintenance of homeostasis and potentiate the anti-inflammatory response. In addition, YAP1 was demonstrated to be the target gene of miR-16b through quantitative real-time polymerase chain reaction, western blot, RNA immunoprecipitation, and functional assays. This study indicates that melatonin inhibits S. aureus-induced inflammation via microRNA-16b/YAP1-mediated regulation, and these findings might provide a new strategy for the prevention of bovine mastitis, facilitating further studies good of zoonotic diseases caused by S. aureus infection.
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Affiliation(s)
- Zhi Chen
- Yangzhou University, Yangzhou 225009, PR China
| | - Kun Wang
- Yangzhou University, Yangzhou 225009, PR China
| | - Jiahe Guo
- Yangzhou University, Yangzhou 225009, PR China
| | | | - Juan J Loor
- University of Illinois, Urbana, Illinois 61801, United States
| | | | - Yi Yang
- Yangzhou University, Yangzhou 225009, PR China
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Bazzichetto C, Milella M, Zampiva I, Simionato F, Amoreo CA, Buglioni S, Pacelli C, Le Pera L, Colombo T, Bria E, Zeuli M, Del Bufalo D, Sperduti I, Conciatori F. Interleukin-8 in Colorectal Cancer: A Systematic Review and Meta-Analysis of Its Potential Role as a Prognostic Biomarker. Biomedicines 2022; 10:biomedicines10102631. [PMID: 36289899 PMCID: PMC9599846 DOI: 10.3390/biomedicines10102631] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/09/2022] [Accepted: 10/16/2022] [Indexed: 12/05/2022] Open
Abstract
Among soluble actors that have emerged as druggable factors, the chemokine interleukin-8 (IL-8) has emerged as a possible determinant of response to immunotherapy and targeted treatment in several cancer types; however, its prognostic/predictive role in colorectal cancer (CRC) remains to be established. We: (i) conducted a systematic review of published literature on IL-8 expression in CRC; (ii) searched public transcriptomics databases; (iii) investigated IL-8 expression, by tumor and infiltrating cells, in a series of CRC samples; and (iv) carried out a meta-analysis of published literature correlating IL-8 expression and CRC prognosis. IL-8 possesses an important role as a mediator of the bidirectional crosstalk between tumor/stromal cells. Transcriptomic analysis indicated that specific IL-8 transcripts were significantly overexpressed in CRC compared to normal colon mucosa. Moreover, in our series we observed a statistically significant correlation between PTEN-loss and IL-8 expression by infiltrating mononuclear and tumor cells. In total, 12 papers met our meta-analysis inclusion criteria, demonstrating that high IL-8 levels significantly correlated with shorter overall survival and progression-free survival. Sensitivity analysis demonstrated a highly significant correlation with outcome for circulating, but not for tissue-detected, IL-8. IL-8 is overexpressed in CRC tissues and differentially produced by tumor or stromal components depending on CRC genetic background. Moreover, circulating IL-8 represents a strong prognostic factor in CRC, suggesting its use in the refining of prognostic CRC assessment and potentially the tailoring of therapeutic strategies in individual CRC patients.
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Affiliation(s)
- Chiara Bazzichetto
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
- Medical Oncology 1, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
- Correspondence: (C.B.); (M.M.); Tel.: +39-06-52665185 (C.B.)
| | - Michele Milella
- Section of Oncology, Department of Medicine, University of Verona-School of Medicine and Verona University Hospital Trust, 37134 Verona, Italy
- Correspondence: (C.B.); (M.M.); Tel.: +39-06-52665185 (C.B.)
| | - Ilaria Zampiva
- Section of Oncology, Department of Medicine, University of Verona-School of Medicine and Verona University Hospital Trust, 37134 Verona, Italy
| | | | | | - Simonetta Buglioni
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Chiara Pacelli
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy
| | - Loredana Le Pera
- Servizio Grandi Strumentazioni e Core Facilities, Istituto Superiore di Sanità (ISS), 00161 Rome, Italy
| | - Teresa Colombo
- Institute of Molecular Biology and Pathology-National Research Council (IBPM-CNR), 00185 Rome, Italy
| | - Emilio Bria
- Medical Oncology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Massimo Zeuli
- Medical Oncology 1, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Donatella Del Bufalo
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Isabella Sperduti
- Biostatistics Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Fabiana Conciatori
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
- Medical Oncology 1, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
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