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Yao Z, Wu Q, Sheng W, Zhou X, Cheng L, Tian X, Yuan H, Gong L, Wang W, Li B, Peng C. Flavonoidal alkaloids: Emerging targets for drug discovery from Nature's bounty. Fitoterapia 2024; 177:106099. [PMID: 38945491 DOI: 10.1016/j.fitote.2024.106099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
This paper explores the potential of flavonoid alkaloids, a unique class of compounds that contain both flavonoid and alkaloid structures, as emerging targets for drug discovery. These compounds exhibit diverse biological activities, such as anti-inflammatory, anti-cancer, and anti-diabetic effects, which are attributed to the combination of different flavonoid scaffolds and alkaloid groups. Flavonoid alkaloids have attracted researchers' attention due to their diverse structures and important bio-activities. Therefore, this review summarizes recent advances in the extraction, purification, structural characterization, synthesis pathways and biological activities of flavonoid alkaloids from natural sources. Finally, the potential prospects and challenges associated with this class of compounds in pharmacological research are discussed along with details of a mechanistic investigation and future clinical applications in this research field.
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Affiliation(s)
- Zhijian Yao
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - Qian Wu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China; Chinese Medicine Hospital of Hengyang, Hengyang 421009, China
| | - Wenbing Sheng
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - XuDong Zhou
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - Lidong Cheng
- Shimen Yirentang Traditional Chinese Medicine Sliced Medicine Co., Ltd. Changde 415300, China
| | - Xing Tian
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - Hanwen Yuan
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - Limin Gong
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China
| | - Bin Li
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China.
| | - Caiyun Peng
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Hunan Provincial TCM and Ethnomedicine Internationnal Science & Technology Innovation Cooperation Base, Hunan Province Laboratory of Natural Medicial Resources and Functions, Changsha 410208, China; Science & Technology Innovation Center, Hunan University of Chinese Medicine, Changsha 410208, China.
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Yin T, Zhang X, Xiong Y, Li B, Guo D, Sha Z, Lin X, Wu H. Exploring gut microbial metabolites as key players in inhibition of cancer progression: Mechanisms and therapeutic implications. Microbiol Res 2024; 288:127871. [PMID: 39137590 DOI: 10.1016/j.micres.2024.127871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/19/2024] [Accepted: 08/06/2024] [Indexed: 08/15/2024]
Abstract
The gut microbiota plays a critical role in numerous biochemical processes essential for human health, such as metabolic regulation and immune system modulation. An increasing number of research suggests a strong association between the gut microbiota and carcinogenesis. The diverse metabolites produced by gut microbiota can modulate cellular gene expression, cell cycle dynamics, apoptosis, and immune system functions, thereby exerting a profound influence on cancer development and progression. A healthy gut microbiota promotes substance metabolism, stimulates immune responses, and thereby maintains the long-term homeostasis of the intestinal microenvironment. When the gut microbiota becomes imbalanced and disrupts the homeostasis of the intestinal microenvironment, the risk of various diseases increases. This review aims to elucidate the impact of gut microbial metabolites on cancer initiation and progression, focusing on short-chain fatty acids (SCFAs), polyamines (PAs), hydrogen sulfide (H2S), secondary bile acids (SBAs), and microbial tryptophan catabolites (MTCs). By detailing the roles and molecular mechanisms of these metabolites in cancer pathogenesis and therapy, this article sheds light on dual effects on the host at different concentrations of metabolites and offers new insights into cancer research.
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Affiliation(s)
- Tianxiang Yin
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Xiang Zhang
- Medical School, Yan'an University, Yan'an 716000, China
| | - Yan Xiong
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Bohao Li
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Dong Guo
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Zhou Sha
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Xiaoyuan Lin
- Department of Clinical Microbiology and Immunology, College of Pharmacy and Medical Laboratory, Army Medical University (Third Military Medical University), Chongqing 400038, China.
| | - Haibo Wu
- School of Life Sciences, Chongqing University, Chongqing 401331, China.
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Jiang D, Liu X, Tan R, Zhu Y, Zhang L. Euphorbia factor L2 suppresses the generation of liver metastatic ascites in breast cancer via inhibiting NLRP3 inflammasome activation. Int J Mol Med 2024; 53:8. [PMID: 38063231 PMCID: PMC10712698 DOI: 10.3892/ijmm.2023.5332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Metastasis is the leading cause of death in patients with breast cancer, in part due to the lack of effective treatments. Euphorbia factor L2 (EFL2) is a diterpenoid extracted from Euphorbia lathyris L. seeds, which has attracted increasing attention in recent years due to its anticancer effect. However, the role and molecular mechanism of EFL2 in breast cancer liver metastasis remain unclear. In the present study, a breast cancer liver metastasis model was constructed and the effect of EFL2 on ascites generation in mice was examined. H&E staining detected inflammatory cells and tumor cells in the liver, small intestine and tumor tissues. Western blotting and reverse transcription‑quantitative PCR were used to detect the protein and mRNA expression of NLR family pyrin domain containing‑3 (NLRP3) and related molecules in tumor tissues. Immunohistochemistry was used to detect the levels of CD4 and CD8 T cells in tumor tissue and immunofluorescence was used to further detect the expression level of NLRP3. Finally, the aforementioned experiments were further verified by overexpressing NLPR3. It was found that EFL2 inhibited generation of ascites in the model in a dose‑dependent manner. Furthermore, EFL2 inhibited tumor cell metastasis and enhanced immune cell infiltration. Meanwhile, EFL2 dose‑dependently downregulated the mRNA and protein expression of NLRP3 and related molecules in the model, and overexpression of NLRP3 abolished these beneficial effects of EFL2. Taken together, the present experimental data suggested that EFL2 has a significant inhibitory effect on ascites of breast cancer liver metastasis in vivo, which may inhibit tumor cell metastasis by downregulating NLRP3 expression, providing an experimental basis for treating breast cancer metastasis.
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Affiliation(s)
- Dongjing Jiang
- Traditional Chinese Medicine and Research Office, Suzhou Vocational Health College, Suzhou, Jiangsu 215000, P.R. China
| | - Xun Liu
- Traditional Chinese Medicine and Research Office, Suzhou Vocational Health College, Suzhou, Jiangsu 215000, P.R. China
| | - Rulan Tan
- Traditional Chinese Medicine and Research Office, Suzhou Vocational Health College, Suzhou, Jiangsu 215000, P.R. China
| | - Ye Zhu
- Traditional Chinese Medicine and Research Office, Suzhou Vocational Health College, Suzhou, Jiangsu 215000, P.R. China
| | - Li Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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Bubnovskaya L, Ganusevich I, Merentsev S, Osinsky D. CANCER-ASSOCIATED ADIPOCYTES AND PROGNOSTIC VALUE OF PREOPERATIVE NEUTROPHIL-LYMPHOCYTE RATIO IN GASTRIC CANCER. Exp Oncol 2023; 45:88-98. [PMID: 37417278 DOI: 10.15407/exp-oncology.2023.01.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND The neutrophil-to-lymphocyte ratio (NLR) turned out to be a routinely available marker capable to reflect the systemic inflammatory response created by a tumor. Gastric cancer (GC) grows in the anatomical vicinity of adipose tissue, which is also associated with low-grade inflammation. AIM To investigate the usefulness of the combined use of preoperative NLR and density of intratumoral cancer-associated adipocytes (CAAs) for predicting the disease outcome in GC patients. MATERIALS AND METHODS A total of 151 patients with GC were eligible for retrospective analysis between 2009 and 2015.NLR preoperative values were calculated. Perilipin expression in tumor tissue was examined immunohistochemically. RESULTS Low preoperative NLR is the most reliable prognostic factor for the favorable outcome for patients with low density of intratumoral CAAs. Patients with a high density of CCAs are at high risk of lethal outcomes independently of the value of preoperative NLR. CONCLUSION The results have clearly shown an association between preoperative NLR and the density of CAAs in the primary tumor of GC patients. The prognostic value of NLR is essentially modified by means of the individual density of intratumoral CAAs in GC patients.The elevated NLR could be of significant predictive potential for a negative prognosis for patients with tumors characterized by the high density of CAAs independently of BMI.
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Affiliation(s)
- L Bubnovskaya
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, National Academy of Sciences of Ukraine, Kyiv 03022, Ukraine
| | - I Ganusevich
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, National Academy of Sciences of Ukraine, Kyiv 03022, Ukraine
| | - S Merentsev
- City Clinical Oncological Center, Kyiv 03115, Ukraine
| | - D Osinsky
- City Clinical Oncological Center, Kyiv 03115, Ukraine
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Tang Y, Zhang C, Ye C, Tian K, Zeng J, Cheng S, Zeng W, Yang B, Liu Y, Yu Y. Construction and validation of programmed cell death-based molecular clusters for prognostic and therapeutic significance of clear cell renal cell carcinoma. Heliyon 2023; 9:e15693. [PMID: 37305457 PMCID: PMC10256830 DOI: 10.1016/j.heliyon.2023.e15693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/08/2023] [Accepted: 04/19/2023] [Indexed: 06/13/2023] Open
Abstract
As the dominant histological subtype of kidney cancer, clear cell renal cell carcinoma (ccRCC) poorly responds to conventional chemotherapy and radiotherapy. Although novel immunotherapies such as immune checkpoint inhibitors could have a durable effect in treating ccRCC patients, the limited availability of dependable biomarkers has restricted their application in clinic. In the study of carcinogenesis and cancer therapies, there has been a recent emphasis on researching programmed cell death (PCD). In the current study, we discovered the enriched and prognostic PCD in ccRCC utilizing gene set enrichment analysis (GSEA) and investigate the functional status of ccRCC patients with different PCD risks. Then, genes related to PCD that had prognostic value in ccRCC were identified for the conduction of non-negative matrix factorization to cluster ccRCC patients. Next, the tumor microenvironment, immunogenicity, and therapeutic response in different molecular clusters were analyzed. Among PCD, apoptosis and pyroptosis were enriched in ccRCC and correlated with prognosis. Patients with high PCD levels were related to poor prognosis and a rich but suppressive immune microenvironment. PCD-based molecular clusters were identified to differentiate the clinical status and prognosis of ccRCC. Moreover, the molecular cluster with high PCD levels may correlate with high immunogenicity and a favorable therapeutic response to ccRCC. Furthermore, a simplified PCD-based gene classifier was established to facilitate clinical application and used transcriptome sequencing data from clinical ccRCC samples to validate the applicability of the gene classifier. We thoroughly extended the understanding of PCD in ccRCC and constructed a PCD-based gene classifier for differentiation of the prognosis and therapeutic efficacy in ccRCC.
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Affiliation(s)
- Yanlin Tang
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Shantou University Medical College, Shantou, China
| | - Changzheng Zhang
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Chujin Ye
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Kaiwen Tian
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Jiayi Zeng
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Shouyu Cheng
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Weinan Zeng
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Shantou University Medical College, Shantou, China
| | - Bowen Yang
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yanjun Liu
- Department of Immunology, School of Basic Medical Science, Southern Medical University, Guangzhou, China
| | - Yuming Yu
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
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Park SY, Cho DG, Shim BY, Cho U. Relationship between Systemic Inflammatory Markers, GLUT1 Expression, and Maximum 18F-Fluorodeoxyglucose Uptake in Non-Small Cell Lung Carcinoma and Their Prognostic Significance. Diagnostics (Basel) 2023; 13:diagnostics13061013. [PMID: 36980320 PMCID: PMC10047418 DOI: 10.3390/diagnostics13061013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 03/30/2023] Open
Abstract
BACKGROUND Factors involved in inflammation and cancer interact in various ways with each other, and biomarkers of systemic inflammation may have a prognostic value in cancer. Glucose transporter 1 (GLUT1) plays a pivotal role in glucose transport and metabolism and it is aberrantly expressed in various cancer types. We evaluated the differential expression of GLUT1, along with 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) in non-small-cell lung cancer (NSCLC), and then analyzed their prognostic significance. METHODS A total of 163 patients with resectable NSCLC were included in this study. Tumor sections were immunohistochemically stained for GLUT1 and GLUT3. Maximum standardized uptake value (SUVmax) was measured by preoperative FDG-PET, and neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and lymphocyte-monocyte ratio (LMR) were derived from pretreatment blood count. RESULTS GLUT1 and GLUT3 was positively expressed in 74.8% and 6.1% of the NSCLC tissues, respectively. GLUT1 expression was significantly correlated with squamous cell carcinoma histology, poor differentiation, high pathologic stage, old age, male, smoking, and high SUVmax (>7) (all p < 0.05). The squamous cell carcinoma and smoker group also showed significantly higher SUVmax (both p < 0.001). Systemic inflammation markers, including NLR, PLR, and LMR, were positively correlated with high SUVmax (all p < 0.05). High GLUT1 expression, high SUVmax, high NLR, and low LMR, were significantly associated with poor overall survival in patients with NSCLC. However, in the multivariate survival analysis, LMR was an independent prognostic factor overall (HR 1.86, 95% CI 1.05-3.3) and for the stage I/II cohort (HR 2.3, 95% CI 1.24-4.3) (all p < 0.05). CONCLUSIONS Systemic inflammatory markers-NLR, PLR, and LMR are strongly correlated with the SUVmax and are indicators of aggressive tumor behavior. Specifically, LMR is a promising prognostic biomarker in NSCLC patients.
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Affiliation(s)
- Sonya Youngju Park
- Department of Nuclear Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Deog-Gon Cho
- Department of Thoracic Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Byoung-Yong Shim
- Division of Medical Oncology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Uiju Cho
- Department of Pathology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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He N, Xi Y, Yu D, Yu C, Shen W. Construction of IL-1 signalling pathway correlation model in lung adenocarcinoma and association with immune microenvironment prognosis and immunotherapy: Multi-data validation. Front Immunol 2023; 14:1116789. [PMID: 36865560 PMCID: PMC9972222 DOI: 10.3389/fimmu.2023.1116789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Numerous studies have confirmed the inextricable link between inflammation and malignancy, which is also involved in developing lung adenocarcinoma, where IL-1 signalling is crucial. However, the predictive role of single gene biomarkers is insufficient, and more accurate prognostic models are needed. We downloaded data related to lung adenocarcinoma patients from the GDC, GEO, TISCH2 and TCGA databases for data analysis, model construction and differential gene expression analysis. The genes of IL-1 signalling-related factors were screened from published papers for subgroup typing and predictive correlation analysis. Five prognostic genes associated with IL-1 signalling were finally identified to construct prognostic prediction models. The K-M curves indicated that the prognostic models had significant predictive efficacy. Further immune infiltration scores showed that IL-1 signalling was mainly associated with enhanced immune cells, drug sensitivity of model genes was analysed using the GDSC database, and correlation of critical memories with cell subpopulation components was observed using single-cell analysis. In conclusion, we propose a predictive model based on IL-1 signalling-related factors, a non-invasive predictive approach for genomic characterisation, in predicting patients' survival outcomes. The therapeutic response has shown satisfactory and effective performance. More interdisciplinary areas combining medicine and electronics will be explored in the future.
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Affiliation(s)
- Ningning He
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Yong Xi
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China,*Correspondence: Yong Xi,
| | - Dongyue Yu
- College of Life Sciences, Nankai University, Tianjin, China
| | - Chaoqun Yu
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Weiyu Shen
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
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Zhang Y, Yao C, Ju Z, Jiao D, Hu D, Qi L, Liu S, Wu X, Zhao C. Krüppel-like factors in tumors: Key regulators and therapeutic avenues. Front Oncol 2023; 13:1080720. [PMID: 36761967 PMCID: PMC9905823 DOI: 10.3389/fonc.2023.1080720] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Krüppel-like factors (KLFs) are a group of DNA-binding transcriptional regulators with multiple essential functions in various cellular processes, including proliferation, migration, inflammation, and angiogenesis. The aberrant expression of KLFs is often found in tumor tissues and is essential for tumor development. At the molecular level, KLFs regulate multiple signaling pathways and mediate crosstalk among them. Some KLFs may also be molecular switches for specific biological signals, driving their transition from tumor suppressors to promoters. At the histological level, the abnormal expression of KLFs is closely associated with tumor cell stemness, proliferation, apoptosis, and alterations in the tumor microenvironment. Notably, the role of each KLF in tumors varies according to tumor type and different stages of tumor development rather than being invariant. In this review, we focus on the advances in the molecular biology of KLFs, particularly the regulations of several classical signaling pathways by these factors, and the critical role of KLFs in tumor development. We also highlight their strong potential as molecular targets in tumor therapy and suggest potential directions for clinical translational research.
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Affiliation(s)
- Yuchen Zhang
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chongjie Yao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ziyong Ju
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Danli Jiao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Hu
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Qi
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shimin Liu
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Xueqing Wu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Chen Zhao, ; Xueqing Wu,
| | - Chen Zhao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Chen Zhao, ; Xueqing Wu,
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9
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Zhou H, Li J, Zhang Y, Chen Z, Chen Y, Ye S. Platelet-lymphocyte ratio is a prognostic marker in small cell lung cancer-A systemic review and meta-analysis. Front Oncol 2023; 12:1086742. [PMID: 36713502 PMCID: PMC9880219 DOI: 10.3389/fonc.2022.1086742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/19/2022] [Indexed: 01/15/2023] Open
Abstract
Aim The aim of this study was to evaluate the relationship between platelet-lymphocyte ratio (PLR) and prognosis in small cell lung cancer (SCLC) patients. Method A comprehensive search was carried out to collect related studies. Two independent investigators extracted the data of hazard ratio (HR) and 95% confidence interval (CI) for overall survival (OS) or progression-free survival (PFS). A random-effect model was applied to analyze the effect of different PLR levels on OS and PFS in SCLC patients. Moreover, subgroup analysis was conducted to seek out the source of heterogeneity. Results A total of 26 articles containing 5,592 SCLC patients were included for this meta-analysis. SCLC patients with a high PLR level had a shorter OS compared with patients with a low PLR level, in both univariate (HR = 1.56, 95% CI 1.28-1.90, p < 0.0001) and multivariate (HR = 1.31, 95% CI 1.08-1.59, p = 0.007) models. SCLC patients with a high PLR level had a shorter PFS compared with patients with a low PLR level, in the univariate model (HR = 1.71, 95% CI 1.35-2.16, p < 0.0001), but not in the multivariate model (HR = 1.17, 95% CI 0.95-1.45, p = 0.14). Subgroup analysis showed that a high level of PLR shortened OS in some subgroups, including the Asian subgroup, the younger subgroup, the mixed-stage subgroup, the chemotherapy-dominant subgroup, the high-cutoff-point subgroup, and the retrospective subgroup. PLR level did not affect OS in other subgroups. Conclusion PLR was a good predictor for prognosis of SCLC patients, especially in patients received chemotherapy dominant treatments and predicting OS. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42022383069.
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Affiliation(s)
- Hongbin Zhou
- Cancer Center, Department of Pulmonary and Critical Care Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Jiuke Li
- Department of Ophthalmology, Hangzhou Aier Eye Hospital, Hangzhou, Zhejiang, China
| | - Yiting Zhang
- Department of Pulmonary and Critical Care Medicine, Xianju People’s Hospital, Taizhou, Zhejiang, China
| | - Zhewen Chen
- Center for General Practice Medicine, Department of Clinical Nutrition, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Ying Chen
- Center for General Practice Medicine, Department of Clinical Nutrition, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Sa Ye
- Center for General Practice Medicine, Department of Clinical Nutrition, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China,*Correspondence: Sa Ye,
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Zou Y, Xu H, Cui J, Wang K, Feng Y, Shi H, Li W, Song C. Association of Phase Angle with Overall Survival in Patients with Cancer: A Prospective Multicenter Cohort Study. Nutr Cancer 2023; 75:890-900. [PMID: 36632984 DOI: 10.1080/01635581.2023.2165693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Low phase angle (PhA) is related with poor clinical status of cancer patients. The objective of this study was to establish sex- and age-specific cutoff points and examine the association between PhA and overall survival (OS) in Chinese cancer patients. This cohort study included data on 1,814 patients with cancer from December 2013 to October 2020. The association between low PhA and overall survival was analyzed using the Kaplan-Meier method and Cox regression model. Among 1,814 participants, there were 993 (54.70%) male and 821 (45.30%) female patients. The optimal cutoff points of low PhA were 4.8°, 4.2°, 4.4°, and 3.8° for the young male, elderly male, young female, and elderly female, respectively. Low PhA was independently associated with poorer OS in young female, elderly female and male (HR: 1.59, 95% CI: 1.08-2.34; HR: 1.65, 95% CI: 1.03-2.67; HR: 2.00, 95% CI: 1.45-2.75). In addition, low PhA was demonstrated to be an adverse prognostic factor in patients with lung cancer, colorectal cancer, and esophagus cancer (HR: 1.85, 95% CI: 1.39-2.47; HR: 2.05, 95% CI: 1.13-3.70; HR: 2.92, 95% CI: 1.49-5.71). Based on cutoff points, low PhA was associated with worse prognosis in patients with cancer.
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Affiliation(s)
- Yuanlin Zou
- Department of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China.,Henan Key Laboratory of Tumor Epidemiology, Zhengzhou University, Zhengzhou, Henan, China
| | - Hongxia Xu
- Department of Clinical Nutrition, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiuwei Cui
- Cancer Center of the First Hospital of Jilin University, Changchun, China
| | - Kunhua Wang
- Department of Gastrointestinal Surgery, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yongdong Feng
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hanping Shi
- Department of Gastrointestinal Surgery and Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wei Li
- Cancer Center of the First Hospital of Jilin University, Changchun, China
| | - Chunhua Song
- Department of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China.,Henan Key Laboratory of Tumor Epidemiology, Zhengzhou University, Zhengzhou, Henan, China.,State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, Henan, China
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11
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Weng M, Zhao W, Yue Y, Guo M, Nan K, Liao Q, Sun M, Zhou D, Miao C. High preoperative white blood cell count determines poor prognosis and is associated with an immunosuppressive microenvironment in colorectal cancer. Front Oncol 2022; 12:943423. [PMID: 35965545 PMCID: PMC9373020 DOI: 10.3389/fonc.2022.943423] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/06/2022] [Indexed: 12/24/2022] Open
Abstract
Background The correlation between high white blood cell (WBC) count and poor prognosis has been identified in various types of cancer; however, the clinical significance and immune context of WBC count in colorectal cancer remains unclear. Methods Between February 2009 and November 2014, 7,433 patients at the Shanghai Cancer Center who had undergone elective surgery for colorectal cancer were enrolled in this retrospective cohort study. Patients were divided into two groups: low and high preoperative WBC groups. Propensity score matching was used to address the differences in baseline characteristics. The Kaplan-Meier method and Cox regression analysis were used to identify independent prognostic factors in colorectal cancer patients. Tumor-infiltrating immune cells in the high and low preoperative WBC groups were compared using immunohistochemical staining. Results Of the 7,433 patients who underwent colorectal cancer surgery and were available for analysis, 5,750 were included in the low preoperative WBC group, and 1,683 were included in the high preoperative WBC group. After propensity score matching, 1,553 patients were included in each group. Kaplan-Meier survival curves showed that a high preoperative WBC count was associated with a decreased overall survival (P = 0.002) and disease-free survival (P = 0.003), and that preoperative WBC count was an independent risk factor for overall survival (hazard ratio, 1.234; 95% confidence interval, 1.068-1.426; P = 0.004) and disease-free survival (hazard ratio, 1.210; 95% confidence interval, 1.047-1.397, P = 0.01). Compared to the low preoperative WBC group, the high preoperative WBC group exhibited higher expression of regulatory T cells (P = 0.0034), CD68+ macrophages (P = 0.0071), and CD66b+ neutrophils (P = 0.0041); increased expression of programmed cell death protein 1 (P = 0.005) and programmed cell death ligand 1 (P = 0.0019); and lower expression of CD8+ T cells (P = 0.0057) in colorectal cancer patients. Conclusions Our research indicates that a high preoperative WBC count is a prognostic indicator in colorectal cancer patients and is associated with an immunosuppressive tumor microenvironment, which could aid in future risk stratification.
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Affiliation(s)
- Meilin Weng
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Anesthesiology, Shanghai Cancer Center, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Wenling Zhao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Ying Yue
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Miaomiao Guo
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Ke Nan
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Qingwu Liao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Minli Sun
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Di Zhou
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Fudan University, Shanghai, China
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12
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Majdan M, Bobrowska-Korczak B. Active Compounds in Fruits and Inflammation in the Body. Nutrients 2022; 14:2496. [PMID: 35745226 PMCID: PMC9229651 DOI: 10.3390/nu14122496] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 12/10/2022] Open
Abstract
Inflammation plays an important role in the pathogenesis of many diseases, including cardiovascular diseases, atherosclerosis, diabetes, asthma, and cancer. An appropriate diet and the active compounds contained in it can affect various stages of the inflammatory process and significantly affect the course of inflammatory diseases. Recent reports indicate that polyphenolic acids, vitamins, minerals, and other components of fruits may exhibit activity stimulating an anti-inflammatory response, which may be of importance in maintaining health and reducing the risk of disease. The article presents the latest data on the chemical composition of fruits and the health benefits arising from their anti-inflammatory and antioxidant effects. The chemical composition of fruits determines their anti-inflammatory and antioxidant properties, but the mechanisms of action are not fully understood.
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Affiliation(s)
| | - Barbara Bobrowska-Korczak
- Department of Bromatology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland;
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13
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Kęska A, Pietrzak A, Iwańska D. Use of the Dietary Inflammatory Index to Assess the Diet of Young Physically Active Men. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116884. [PMID: 35682467 PMCID: PMC9180472 DOI: 10.3390/ijerph19116884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 02/05/2023]
Abstract
Background: Chronic inflammation can lead to the development of obesity, diabetes and other chronic diseases. One of the factors causing inflammation is diet. The aim of this study was to assess the inflammatory potential of the diet, expressed by the DII index, in young physically active men. Methods: A total of 94 physically active students aged 19–23 participated in the study. The subjects’ diets were assessed on the basis of 4-day dietary records, which were then analyzed using the computer program “Diet 5.0”. The DII was calculated for each participant based on the individual consumption of the selected dietary components. The concentration of CRP protein was also determined. Results: Participants was divided into groups according to values of DII. Diets with different DIIs provided similar amounts of calories, but differed significantly in the content of many nutrients. Participants whose diets showed the most anti-inflammatory effects consumed significantly more protein, magnesium, iron, zinc, antioxidant vitamins, and B vitamins compared to others. The highest concentration of CRP protein was observed in men whose diet was described as the most pro-inflammatory (Q4 group). A significant relationship was found between DII and body fat (%) in men in the most anti-inflammatory (Q1 group) and neutral diet (Q2–Q3 group). Conclusions: The Dietary Inflammatory Index is a promising method of describing the effect of dietary intake on the risk of inflammation in young, healthy individuals engaging in regular physical activity.
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Affiliation(s)
- Anna Kęska
- Department of Human Biology, Józef Piłsudski University of Physical Education, 00-809 Warsaw, Poland;
- Correspondence:
| | - Anna Pietrzak
- Department of Human Biology, Józef Piłsudski University of Physical Education, 00-809 Warsaw, Poland;
| | - Dagmara Iwańska
- Department of Biomedical Sciences, Józef Piłsudski University of Physical Education, 00-809 Warsaw, Poland;
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14
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Inflammation: A New Look at an Old Problem. Int J Mol Sci 2022; 23:ijms23094596. [PMID: 35562986 PMCID: PMC9100490 DOI: 10.3390/ijms23094596] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 02/07/2023] Open
Abstract
Pro-inflammatory stress is inherent in any cells that are subject to damage or threat of damage. It is defined by a number of universal components, including oxidative stress, cellular response to DNA damage, unfolded protein response to mitochondrial and endoplasmic reticulum stress, changes in autophagy, inflammasome formation, non-coding RNA response, formation of an inducible network of signaling pathways, and epigenetic changes. The presence of an inducible receptor and secretory phenotype in many cells is the cause of tissue pro-inflammatory stress. The key phenomenon determining the occurrence of a classical inflammatory focus is the microvascular inflammatory response (exudation, leukocyte migration to the alteration zone). This same reaction at the systemic level leads to the development of life-critical systemic inflammation. From this standpoint, we can characterize the common mechanisms of pathologies that differ in their clinical appearance. The division of inflammation into alternative variants has deep evolutionary roots. Evolutionary aspects of inflammation are also described in the review. The aim of the review is to provide theoretical arguments for the need for an up-to-date theory of the relationship between key human pathological processes based on the integrative role of the molecular mechanisms of cellular and tissue pro-inflammatory stress.
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15
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de Souza PS, Bibá GCC, Melo EDDN, Muzitano MF. Chalcones against the hallmarks of cancer: a mini-review. Nat Prod Res 2021; 36:4809-4826. [PMID: 34865580 DOI: 10.1080/14786419.2021.2000980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Chalcones (1,3-diphenylpropen-1-ones) are a class of flavonoids that have been shown a broad spectrum of biological activities with therapeutic potential. Naturally occurring chalcones or synthetic chalcone derivatives have been extensively investigated as anticancer compounds. Cancer is still among the leading causes of death globally, although cancer treatments have improved over the past decades. Most of chemotherapeutic drugs target proliferating tumor cells; however, the cancer cells capabilities are also associated to tumor surround microenvironment. Thereby, the search of new compounds with a broad antitumor activity is still a great challenge. The cytotoxicity mechanisms of chalcones are beyond apoptosis induction in tumor cells, which make them promising compound for cancer therapy. In this mini-review we summarized recent studies that describe the anticancer potential of chalcones related to some of hallmarks of cancer. We shed a light on sustaining proliferative signaling, tumor-promoting inflammation, activating invasion and metastasis, inducing angiogenesis and resisting cell death.
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Affiliation(s)
- Paloma Silva de Souza
- Laboratório de Produtos Bioativos, Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Pós-graduação em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Geysa Cristina Caldas Bibá
- Laboratório de Produtos Bioativos, Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Pós-graduação em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Evelynn Dalila do Nascimento Melo
- Laboratório de Produtos Bioativos, Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Pós-graduação em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michelle Frazão Muzitano
- Laboratório de Produtos Bioativos, Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Pós-graduação em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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16
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Li W, Yin X, Yan Y, Liu C, Li G. STEAP4 knockdown inhibits the proliferation of prostate cancer cells by activating the cGMP-PKG pathway under lipopolysaccharide-induced inflammatory microenvironment. Int Immunopharmacol 2021; 101:108311. [PMID: 34768126 DOI: 10.1016/j.intimp.2021.108311] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 10/23/2021] [Accepted: 10/24/2021] [Indexed: 12/30/2022]
Abstract
Six-transmembrane epithelial antigen of prostate 4 (STEAP4) is involved in the development of human cancers. However, the role of STEAP4 in prostate cancer remains largely unknown. The purpose of this research is to explore the role and action mechanism of STEAP4 in prostate cancer development under lipopolysaccharide (LPS)-induced inflammatory microenvironment. STEAP4 expression was analyzed by Gene Expression Profiling Interactive Analysis (GEPIA), UALCAN and Cancer Cell Line Encyclopedia (CCLE), and its prognostic value was analyzed by LinkedOmics. STEAP4-correlated genes were analyzed by LinkedOmics and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. STEAP4 level was detected by Western blotting or qRT-PCR. Proliferation was investigated by CCK-8 and EdU staining. Inflammatory cytokine levels were detected by ELISA. The cyclic guanosine monophosphate (cGMP)-protein kinase G (PKG) pathway was detected by ELISA and Western blotting. STEAP4 level was increased in prostate cancer tissues, and high expression of STEAP4 was associated with the poor overall survival. LPS promoted cell viability and STEAP4 expression. STEAP4 knockdown attenuated LPS-induced inflammation in prostate cancer cells. STEAP4 downregulation mitigated LPS-induced tumorigenesis by decreasing cell proliferation. STEAP4 silencing reversed LPS-induced inactivation of the cGMP-PKG pathway. Inhibition of the cGMP-PKG pathway using inhibitor KT5823 relieved STEAP4 silencing-mediated suppression of cell proliferation and inflammation in LPS-stimulated cells. In conclusion, STEAP4 silencing inhibits LPS-induced proliferation of prostate cancer cells by activating the cGMP-PKG pathway.
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Affiliation(s)
- Weiwei Li
- Department of Reproductive Medicine, Maternal and Child Care Center of Qinhuangdao, Qinhuangdao 066000, China
| | - Xiurong Yin
- Department of Reproductive Medicine, Maternal and Child Care Center of Qinhuangdao, Qinhuangdao 066000, China
| | - Yani Yan
- Department of Reproductive Medicine, Maternal and Child Care Center of Qinhuangdao, Qinhuangdao 066000, China
| | - Cong Liu
- Department of Reproductive Medicine, Maternal and Child Care Center of Qinhuangdao, Qinhuangdao 066000, China
| | - Gang Li
- Department of Surgical Anesthesiology, Maternal and Child Care Center of Qinhuangdao, Qinhuangdao 066000, China.
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