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Wang W, He Y, Yao LC, Yuan Y, Lu C, Xiong LK, Ma P, Zhang YF, Yu KH, Tang ZG. Identification of m6A modification patterns and RBM15 mediated macrophage phagocytosis in pancreatic cancer: An integrative analysis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167304. [PMID: 38878830 DOI: 10.1016/j.bbadis.2024.167304] [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: 11/17/2023] [Revised: 05/22/2024] [Accepted: 06/07/2024] [Indexed: 06/20/2024]
Abstract
Pancreatic cancer (PC) responds weakly to conventional immunotherapy. RNA N6-methyladenosine (m6A) modification has an essential role in the immune response, while its potential role in PC tumor microenvironment (TME) immune cell infiltration remains unknown. In this study, we thoroughly assessed the m6A modification patterns of 472 PC samples using 19 m6A regulators, and we systematically correlated these modification patterns with TME immune cell infiltration characteristics. We also created the m6Ascore and evaluated the m6A modification patterns of individual tumors, identified three different m6A modification patterns, and explored the role of the important m6A "writer" RBM15 in the regulation of macrophage function in PC. Two independent PC cohorts confirmed that patients with higher m6Ascore showed significant survival benefit. We verified that knockdown of RBM15 has the ability to inhibit PC growth and to promote macrophage infiltration and enhance phagocytosis of PC cells by macrophages. In conclusion, m6A modifications play a non-negligible role in the formation of TME diversity and complexity in PC. We reveal that inhibition of RBM15 suppresses PC development and modulates macrophage phagocytosis, and provide a more effective immunotherapeutic strategy for PC.
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Affiliation(s)
- Wei Wang
- Department of Hepatobiliary Surgery, East Hospital, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China; Key Laboratory of Hubei Province for Digestive System Disease, Wuhan 430060, Hubei Province, China
| | - Ying He
- Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Li-Chao Yao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Yan Yuan
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Cong Lu
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Liang-Kun Xiong
- Department of Hepatobiliary Surgery, East Hospital, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Peng Ma
- Department of Hepatobiliary Surgery, East Hospital, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Yue-Feng Zhang
- Department of Hepatobiliary Surgery, East Hospital, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Kai-Huan Yu
- Department of Hepatobiliary Surgery, East Hospital, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China.
| | - Zhi-Gang Tang
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China.
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Yu P, Han Y, Meng L, Tian Y, Jin Z, Luo J, Han C, Xu W, Kong L, Zhang C. Exosomes derived from pulmonary metastatic sites enhance osteosarcoma lung metastasis by transferring the miR-194/215 cluster targeting MARCKS. Acta Pharm Sin B 2024; 14:2039-2056. [PMID: 38799644 PMCID: PMC11119511 DOI: 10.1016/j.apsb.2024.01.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/22/2023] [Accepted: 01/05/2024] [Indexed: 05/29/2024] Open
Abstract
Osteosarcoma, a prevalent primary malignant bone tumor, often presents with lung metastases, severely impacting patient survival rates. Extracellular vesicles, particularly exosomes, play a pivotal role in the formation and progression of osteosarcoma-related pulmonary lesions. However, the communication between primary osteosarcoma and exosome-mediated pulmonary lesions remains obscure, with the potential impact of pulmonary metastatic foci on osteosarcoma progression largely unknown. This study unveils an innovative mechanism by which exosomes originating from osteosarcoma pulmonary metastatic sites transport the miR-194/215 cluster to the primary tumor site. This transportation enhances lung metastatic capability by downregulating myristoylated alanine-rich C-kinase substrate (MARCKS) expression. Addressing this phenomenon, in this study we employ cationic bovine serum albumin (CBSA) to form nanoparticles (CBSA-anta-194/215) via electrostatic interaction with antagomir-miR-194/215. These nanoparticles are loaded into nucleic acid-depleted exosomal membrane vesicles (anta-194/215@Exo) targeting osteosarcoma lung metastatic sites. Intervention with bioengineered exosome mimetics (anta-194/215@Exo) not only impedes osteosarcoma progression but also significantly prolongs the lifespan of tumor-bearing mice. These findings suggest that pulmonary metastatic foci-derived exosomes initiate primary osteosarcoma lung metastasis by transferring the miR-194/215 cluster targeting MARCKS, making the miR-194/215 cluster a promising therapeutic target for inhibiting the progression of patients with osteosarcoma lung metastases.
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Affiliation(s)
- Pei Yu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yubao Han
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Lulu Meng
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yanyuan Tian
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zhiwei Jin
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jun Luo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Chao Han
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wenjun Xu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Chao Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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Zhang Z, Xu X, Zhang D, Zhao S, Wang C, Zhang G, Chen W, Liu J, Gong H, Rixiati Y, Li S, Shen T, Li J. Targeting Erbin-mitochondria axis in platelets/megakaryocytes promotes B cell-mediated antitumor immunity. Cell Metab 2024; 36:541-556.e9. [PMID: 38232736 DOI: 10.1016/j.cmet.2023.12.020] [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: 02/15/2023] [Revised: 08/08/2023] [Accepted: 12/15/2023] [Indexed: 01/19/2024]
Abstract
The roles of platelets/megakaryocytes (MKs), the key components in the blood system, in the tumor microenvironment and antitumor immunity are unclear. In patients with colorectal cancer, the number of platelets was significantly increased in patients with metastasis, and Erbin expression was highly expressed in platelets from patients with metastases. Moreover, Erbin knockout in platelets/MKs suppressed lung metastasis in mice and promoted aggregations of platelets. Mechanistically, Erbin-deficient platelets have increasing mitochondrial oxidative phosphorylation and secrete lipid metabolites like acyl-carnitine (Acar) by abolishing interaction with prothrombotic protein ESAM. Notably, Acar enhanced the activity of mitochondrial electron transport chain complex and mitochondrial oxidative phosphorylation in B cells by acetylation of H3K27 epigenetically. Targeting Erbin in platelets/MKs by a nanovesicle system dramatically attenuated lung metastasis in mice in vivo. Our study identifies an Erbin-mitochondria axis in platelets/MKs, which suppresses B cell-mediated antitumor immunity, suggesting a new way for the treatment of metastasis.
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Affiliation(s)
- Zilong Zhang
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xu Xu
- Department of Pathology, Soochow University Medical School, Suzhou, China
| | - Di Zhang
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Songsong Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou, China
| | - Chuyi Wang
- Department of Pathology, Soochow University Medical School, Suzhou, China
| | - Guilin Zhang
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wenshu Chen
- Department of Pathology, Soochow University Medical School, Suzhou, China
| | - Jinglin Liu
- Department of Pathology, Soochow University Medical School, Suzhou, China
| | - Huimin Gong
- Department of Pathology, Soochow University Medical School, Suzhou, China
| | | | - Shi Li
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Tong Shen
- Department of Pathology, Soochow University Medical School, Suzhou, China.
| | - Jianming Li
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Department of Pathology, Soochow University Medical School, Suzhou, China.
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Cheng X, Zhou J, Chen Y, Zhao Y, Zheng H, Wang Q, Li X, Jiang S. Patterns and trends of mortality from metastatic colorectal cancer in Shanghai, China from 2005 to 2021: a population-based retrospective analysis. J Cancer Res Clin Oncol 2024; 150:68. [PMID: 38305905 PMCID: PMC10837271 DOI: 10.1007/s00432-023-05518-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/07/2023] [Indexed: 02/03/2024]
Abstract
PURPOSE Metastatic colorectal cancer (mCRC) is the leading cause of CRC deaths, however, the relative epidemiological research was insufficient. We aimed to analyze the patterns and trends of mortality of mCRC in Shanghai with a more complete system for monitoring the cause of death of the population and find potential methods to reduce the burden of CRC in China. METHODS Mortality data from 2005 to 2021 of mCRC deaths were obtained from the mortality registration system in Shanghai. We analyzed the crude mortality rates, age-standardized mortality rates, and rates of years of life lost (YLL rates) of mCRC. In addition, the trends were quantified using Joinpoint Regression software. RESULTS A total of 4,386 mCRC deaths were included, with 1,937 (44.16%) liver metastases and 1,061 (24.19%) lung metastases. The crude mortality rate and age-standardized mortality rate of mCRC were 9.09 per 105 person-years and 3.78 per 105 person-years, respectively. The YLL was 50,533.13 years, and the YLL rate was 104.67 per 105 person-years. The overall annual crude mortality rate of mCRC increased by 1.47% (95% CI 0.28-2.68%, P < 0.001) from 2005 to 2021. The crude mortality rate of mCRC increased by 3.20% per year (95% CI 1.80-4.70%, P < 0.001) from 2005 to 2013, but the trend of mortality growth remained stable from 2013 to 2021. The YLL rates remained stable between 2005 and 2021. CONCLUSIONS Population aging was the most likely factor responsible for the increase in CRC mortality in Pudong. Physical examinations and screenings for the elderly were possible reasons for reducing the burden of CRC in fast-growing regions.
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Affiliation(s)
- Xuelin Cheng
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of General Practice, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Zhou
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of General Practice, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yichen Chen
- Office of Scientific Research and Information Management, Pudong Institute of Preventive Medicine, Pudong New Area, Shanghai, China
| | - Yajun Zhao
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of General Practice, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huichao Zheng
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of General Practice, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qizhe Wang
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of General Practice, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaopan Li
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Office of Scientific Research and Information Management, Pudong Institute of Preventive Medicine, Pudong New Area, Shanghai, China
| | - Sunfang Jiang
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China.
- Department of General Practice, Zhongshan Hospital, Fudan University, Shanghai, China.
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Gao X, Long R, Qin M, Zhu W, Wei L, Dong P, Chen J, Luo J, Feng J. Gab2 promotes the growth of colorectal cancer by regulating the M2 polarization of tumor‑associated macrophages. Int J Mol Med 2024; 53:3. [PMID: 37937666 PMCID: PMC10688767 DOI: 10.3892/ijmm.2023.5327] [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: 07/11/2023] [Accepted: 10/18/2023] [Indexed: 11/09/2023] Open
Abstract
Tumor‑associated macrophages (TAMs) are pivotal components in colorectal cancer (CRC) progression, markedly influencing the tumor microenvironment through their polarization into the pro‑inflammatory M1 or pro‑tumorigenic M2 phenotypes. Recent studies have highlighted that the Grb2‑associated binder 2 (Gab2) is a critical gene involved in the development of various types of tumor, including CRC. However, the precise role of Gab2 in mediating TAM polarization remains incompletely elucidated. In the present study, it was discovered that Gab2 was highly expressed within CRC tissue TAMs, and was associated with a poor prognosis of patients with CRC. Functionally, it was identified that the tumor‑conditioned medium (TCM) induced Gab2 expression, facilitating the TAMs towards an M2‑like phenotype polarization. Of note, the suppression of Gab2 expression using shRNA markedly inhibited the TCM‑induced expression of M2‑associated molecules, without affecting M1‑type markers. Furthermore, the xenotransplantation model demonstrated that Gab2 deficiency in TAMs inhibited tumor growth in the mouse model of CRC. Mechanistically, Gab2 induced the M2 polarization of TAMs by regulating the AKT and ERK signaling pathways, promoting CRC growth and metastasis. In summary, the present study study elucidates that decreasing Gab2 expression hinders the transition of TAMs towards the M2 phenotype, thereby suppressing the growth of CRC. The exploration of the regulatory mechanisms of Gab2 in TAM polarization may enhance the current understanding of the core molecular pathways of CRC development and may thus provide a foundation for the development of novel immunotherapeutic strategies targeted against TAMs.
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Affiliation(s)
- Xuehan Gao
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Runying Long
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR 999077, P.R. China
| | - Ming Qin
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Wenfang Zhu
- Department of Oncology, Lishui People's Hospital, Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang 323000, P.R. China
| | - Linna Wei
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Pinzhi Dong
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Jin Chen
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Junmin Luo
- Special Key Laboratory of Gene Detection and Therapy and Base for Talents in Biotherapy of Guizhou Province, P.R. China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Jihong Feng
- Department of Oncology, Lishui People's Hospital, Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang 323000, P.R. China
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Ramos MJ, Lui AJ, Hollern DP. The Evolving Landscape of B Cells in Cancer Metastasis. Cancer Res 2023; 83:3835-3845. [PMID: 37815800 PMCID: PMC10914383 DOI: 10.1158/0008-5472.can-23-0620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/28/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
Metastasis is the leading cause of cancer mortality. Functional and clinical studies have documented diverse B-cell and antibody responses in cancer metastasis. The presence of B cells in tumor microenvironments and metastatic sites has been associated with diverse effects that can promote or inhibit metastasis. Specifically, B cells can contribute to the spread of cancer cells by enhancing tumor cell motility, invasion, angiogenesis, lymphangiogenesis, and extracellular matrix remodeling. Moreover, they can promote metastatic colonization by triggering pathogenic immunoglobulin responses and recruiting immune suppressive cells. Contrastingly, B cells can also exhibit antimetastatic effects. For example, they aid in enhanced antigen presentation, which helps activate immune responses against cancer cells. In addition, B cells play a crucial role in preventing the dissemination of metastatic cells from the primary tumor and secrete antibodies that can aid in tumor recognition. Here, we review the complex roles of B cells in metastasis, delineating the heterogeneity of B-cell activity and subtypes by metastatic site, antibody class, antigen (if known), and molecular phenotype. These important attributes of B cells emphasize the need for a deeper understanding and characterization of B-cell phenotypes to define their effects in metastasis.
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Affiliation(s)
- Monika J. Ramos
- Salk Institute for Biological Sciences
- The University of California San Diego School of Biological Sciences
| | - Asona J. Lui
- Salk Institute for Biological Sciences
- Radiation Medicine and Applied Sciences, The University of California School of Medicine
| | - Daniel P. Hollern
- Salk Institute for Biological Sciences
- The University of California San Diego School of Biological Sciences
- Radiation Medicine and Applied Sciences, The University of California School of Medicine
- NOMIS Center for Immunobiology and Microbial Pathogenesis
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Li W, Wu H, Xu J. Construction of a genomic instability-derived predictive prognostic signature for non-small cell lung cancer patients. Cancer Genet 2023; 278-279:24-37. [PMID: 37579716 DOI: 10.1016/j.cancergen.2023.07.008] [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: 02/20/2023] [Revised: 06/27/2023] [Accepted: 07/29/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Genomic instability (GI) is an effective prognostic marker of cancer. Thus, in this work, we aimed to explore the impact of GI derived signature on prognosis in non-small cell lung cancer (NSCLC) patients using bioinformatics methods. METHODS The data of NSCLC patients were collected from The Cancer Genome Atlas. Totally 1794 immune related genes were downloaded from immport database. The optimal prognosis related genes were identified by univariate and LASSO Cox analyses. The risk score model was built to predict the NSCLC patients' prognosis. The immune cell infiltration was analyzed in CIBERSORT. RESULTS The 951 differentially expressed genes (DEGs) between the genomic stability (GS) and GI groups were enriched in 862 Gene ontology terms and 32 Kyoto Encyclopedia of Genes and Genomes pathways. Based on the 13 optimal genes, a prognostic risk score mode for NSCLC was established, and the high-risk patients exhibited worse overall survival. Moreover, the nomogram could reliably predict the clinical outcomes. The immune cell infiltration and checkpoints were significantly differential between the two groups (high-risk and low-risk). CONCLUSION The GI related 13-gene signature (TMPRSS11E, TNNC2, HLF, FOXM1, PKMYT1, TCN1, RGS20, SYT8, CD1B, LY6K, MFSD4A, KLRG2 APCDD1L) could reliably predict the prognosis of NSCLC patients.
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Affiliation(s)
- Wei Li
- Department of Pulmonary and Critical Care Medicine, The Yancheng Clinical College of Xuzhou Medical University, The First People's Hospital of Yancheng City, Yancheng, Jiangsu 224006, China
| | - Huaman Wu
- Department of Respiratory and Critical Care Medicine, Zigong First People's Hospital, Ziliujing District, Zigong, Sichuan 643000, China
| | - Juan Xu
- Department of Pulmonary and Critical Care Medicine, The Yancheng Clinical College of Xuzhou Medical University, The First People's Hospital of Yancheng City, Yancheng, Jiangsu 224006, China.
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Wang H, Guo J, Chen X, He H. The Metabolomics Changes in Luria-Bertani Broth Medium under Different Sterilization Methods and Their Effects on Bacillus Growth. Metabolites 2023; 13:958. [PMID: 37623901 PMCID: PMC10456909 DOI: 10.3390/metabo13080958] [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: 07/03/2023] [Revised: 08/15/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023] Open
Abstract
Luria-Bertani broth (LB) culture medium is a commonly used bacterial culture medium in the laboratory. The nutrient composition, concentration, and culture conditions of LB medium can influence the growth of microbial strains. The purpose of this article is to demonstrate the impact of LB liquid culture medium on microbial growth under different sterilization conditions. In this study, LB medium with four different treatments was used, as follows: A, LB medium without treatments; B, LB medium with filtration; C, LB medium with autoclaving; and D, LB medium with autoclaving and cultured for 12 h. Subsequently, the protein levels and antioxidant capacity of the medium with different treatments were measured, and the effects of the different LB medium treatments on the growth of microorganisms and metabolites were determined via 16s rRNA gene sequencing and metabolomics analysis, respectively. Firmicutes and Lactobacillus were the dominant microorganisms, which were enriched in fermentation and chemoheterotrophy. The protein levels and antioxidant capacity of the LB medium with different treatments were different, and with the increasing concentration of medium, the protein levels were gradually increased, while the antioxidant capacity was decreased firstly and then increased. The growth trend of Bacillus subtilis, Bacillus paralicheniformis, Micrococcus luteus, and Alternaria alternata in the medium with different treatments was similar. Additionally, 220 and 114 differential metabolites were found between B and C medium, and between C and D medium, which were significantly enriched in the "Hedgehog signaling pathway", "biosynthesis of plant secondary metabolites", "ABC transporters", "arginine and proline metabolism", and "linoleic acid metabolism". LB medium may be a good energy source for Lactobacillus growth with unsterilized medium, and LB medium filtered with a 0.22 μm filter membrane may be used for bacterial culture better than culture medium after high-pressure sterilization. LB medium still has the ability for antioxidation and to keep bacteria growth whether or not autoclaved, indicating that there are some substances that can resist a high temperature and pressure and still maintain their functions.
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Affiliation(s)
- Haifeng Wang
- School of Environmental Engineering, Yellow River Conservancy Technical Institute, Kaifeng Key Laboratory of Food Composition and Quality Assessment, Kaifeng 475004, China
| | - Juan Guo
- School of Environmental Engineering, Yellow River Conservancy Technical Institute, Kaifeng Key Laboratory of Food Composition and Quality Assessment, Kaifeng 475004, China
| | - Xing Chen
- School of Environmental Engineering, Yellow River Conservancy Technical Institute, Kaifeng Key Laboratory of Food Composition and Quality Assessment, Kaifeng 475004, China
| | - Hongxuan He
- National Research Center for Wildlife-Borne Diseases, Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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9
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Wang Y, Song W, Yu S, Liu Y, Chen YG. Intestinal cellular heterogeneity and disease development revealed by single-cell technology. CELL REGENERATION 2022; 11:26. [PMID: 36045190 PMCID: PMC9433512 DOI: 10.1186/s13619-022-00127-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 07/15/2022] [Indexed: 11/10/2022]
Abstract
The intestinal epithelium is responsible for food digestion and nutrient absorption and plays a critical role in hormone secretion, microorganism defense, and immune response. These functions depend on the integral single-layered intestinal epithelium, which shows diversified cell constitution and rapid self-renewal and presents powerful regeneration plasticity after injury. Derailment of homeostasis of the intestine epithelium leads to the development of diseases, most commonly including enteritis and colorectal cancer. Therefore, it is important to understand the cellular characterization of the intestinal epithelium at the molecular level and the mechanisms underlying its homeostatic maintenance. Single-cell technologies allow us to gain molecular insights at the single-cell level. In this review, we summarize the single-cell RNA sequencing applications to understand intestinal cell characteristics, spatiotemporal evolution, and intestinal disease development.
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10
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Zheng Y, Yang X. Application and prospect of single-cell sequencing in cancer metastasis. Future Oncol 2022; 18:2723-2736. [PMID: 35686493 DOI: 10.2217/fon-2022-0156] [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: 11/21/2022] Open
Abstract
Cancer metastasis is a complicated process driven by internal genetic variations and developed through interactions with the external environment. This process usually causes therapeutic resistance and results in a low survival rate. In recent years, single-cell sequencing has become a popular method for revealing the tumor evolutionary genetic lineage, intra-tumoral heterogeneity and tumor microenvironment of the metastasis process. So as to find more therapeutic targets for clinical application, the spatial transcriptomics method has become a new rising field of cancer studies, which promotes the combination between clinical medicine and molecular biology. In future prospects, more accurate and personalized treatment models will come into reality.
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Affiliation(s)
- Yue Zheng
- Department of Biochemistry & Molecular Biology, Basic Medical College, Shanxi Medical University, Taiyuan City, Shanxi Province, 030000, China
| | - Xiaofeng Yang
- Department of Urology, First Hospital of Shanxi Medical University,Taiyuan City, Shanxi Province, 030000, China
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11
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Yang S, Yu F, Ji Y, Shen Y, Lu H, Gao Y, Zhang F, Wang X, Zhang C. Circular RNA ERBIN Promotes Proliferation of Hepatocellular Carcinoma via the miR-1263/CDK6 Axis. Front Oncol 2022; 12:878513. [PMID: 35530358 PMCID: PMC9069100 DOI: 10.3389/fonc.2022.878513] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives Hepatocellular carcinoma (HCC) is the most common primary liver cancer and characterized by high aggressiveness and extremely poor prognosis. Increasing evidence has suggested that circular RNAs (circRNAs), which are highly stable, play crucial roles in the progression of multiple malignancies. However, the roles of circRNAs in HCC remain elusive. Materials and Methods The expression patterns of circRNAs in HCC were identified by qRT-PCR. A series of functional experiments both in vivo and in vitro were used to determine the role of circERBIN in HCC proliferation. Bioinformatics and an RNA pulldown assay were used to identify potential downstream targets of circERBIN. Results The expression of circERBIN was upregulated in HCC cell lines and tissues, which was predictive of a poor prognosis in HCC patients. Elevated circERBIN promoted G1/S transition of HCC cells, thus facilitating the proliferation and tumorigenesis of HCC cells. Mechanistic investigations revealed that circERBIN regulated HCC proliferation by acting as a sponge of miR-1263, which subsequently targeted cyclin dependent kinase 6 and controlled G1/S transition. Conclusion Taken together, these results determined that circERBIN functions as an important epigenetic regulator in HCC development, highlighting that circERBIN is a promising target for treatment of HCC.
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Affiliation(s)
- Shikun Yang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Fei Yu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Yang Ji
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Yanjun Shen
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Hao Lu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Yuan Gao
- Department of Hepato-Biliary-Pancreatic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Feng Zhang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Xuehao Wang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Chuanyong Zhang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
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Guo S, Li T, Xu D, Xu J, Wang H, Li J, Bi X, Cao M, Xu Z, Xia Q, Cui Y, Li K. Prognostic Implications and Immune Infiltration Characteristics of Chromosomal Instability-Related Dysregulated CeRNA in Lung Adenocarcinoma. Front Mol Biosci 2022; 9:843640. [PMID: 35419410 PMCID: PMC8995899 DOI: 10.3389/fmolb.2022.843640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 02/22/2022] [Indexed: 12/14/2022] Open
Abstract
An accumulating body of research indicates that long-noncoding RNAs (lncRNAs) regulate the target genes and act as competitive endogenous RNAs (ceRNAs) playing an indispensable role in lung adenocarcinoma (LUAD). LUAD is frequently accompanied by the feature of chromosomal instability (CIN); however, CIN-related ceRNAs have not been investigated yet. We systematically analyzed and integrated CIN-related dysregulated ceRNAs characteristics in LUAD samples for the first time. In TCGA LUAD cohort, CIN in tumor samples was significantly higher than that in those of adjacent, and patients with high CIN risk tended to have worse clinical outcomes. We constructed a double-weighted CIN-related dysregulated ceRNA network, in which edge weight and node weight represented the disorder extent of ceRNA and the correlation of RNA expression level and prognosis, respectively. After module mining and analysis, a potential prognostic biomarker composed of 12 RNAs (8 mRNAs and 4 lncRNAs) named CIN-related dysregulated ceRNAs (CRDC) was obtained. The CRDC risk score had a positive relation with clinical stage and CIN, and patients with high CRDC risk scores exhibited poor prognosis. Moreover, CRDC tended to be an independent risk factor with high robustness to overcome the effect of multicollinearity among other explanatory variables for disease-specific survival (DSS) in TCGA and two GEO cohorts. The result of functional analysis indicated that CRDC was involved in multiple cancer progresses, especially immune-related pathways. The patients with lower CRDC risk had higher B cell, T cell CD4+, T cell CD8+, neutrophil, macrophage, and myeloid dendritic cell infiltration than the patients with higher CRDC risk. Meanwhile, patients with lower CRDC risk could get more benefits from immunological therapy. The results suggested that the CRDC could be a potential prognostic biomarker and an immunotherapy predictor for lung adenocarcinoma.
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Affiliation(s)
- Shengnan Guo
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Tianhao Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Dahua Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Jiankai Xu
- College of Bioinformatics Science and Technology, Cancer Hospital, Harbin Medical University, Harbin, China
| | - Hong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Jian Li
- College of Bioinformatics Science and Technology, Cancer Hospital, Harbin Medical University, Harbin, China
| | - Xiaoman Bi
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Meng Cao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Zhizhou Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
| | - Qianfeng Xia
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Control of Tropical Diseases, School of Tropical Medicine, The Second Affiliated Hospital, Hainan Medical University, Haikou, China
- *Correspondence: Qianfeng Xia, ; Ying Cui, ; Kongning Li,
| | - Ying Cui
- College of Bioinformatics Science and Technology, Cancer Hospital, Harbin Medical University, Harbin, China
- *Correspondence: Qianfeng Xia, ; Ying Cui, ; Kongning Li,
| | - Kongning Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, College of Biomedical Information and Engineering, Institute of Nephrology Second Affiliated Hospital and Hainan General Hospital, Hainan Medical University, Haikou, China
- *Correspondence: Qianfeng Xia, ; Ying Cui, ; Kongning Li,
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B cell heterogeneity, plasticity, and functional diversity in cancer microenvironments. Oncogene 2021; 40:4737-4745. [PMID: 34188249 DOI: 10.1038/s41388-021-01918-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/14/2021] [Accepted: 06/17/2021] [Indexed: 02/08/2023]
Abstract
B cells constitute a major component of tumor-infiltrating leukocytes. However, the influence of these cells on malignancy is currently under debate, reflecting the heterogeneity of B cell subsets in tumors. With recent advances, it becomes apparent that this debate includes not only the evaluation of B cells themselves, but also the underlying immune microenvironment network, which scripts the highly heterogeneous B cell populations in tumors and directs the roles of those sub-populations in disease progression and clinical treatment. In this review, we summarize recent findings on the heterogeneous subset composition of B cells in both human and mouse tumor models and their different impacts on disease progression. We further describe the multidimensional interplays between B cells and other immune cells in the tumor microenvironment, which account for the regulation of B cell differentiation and function in situ. We also assess the potential influences of distinct sub-tumor locations on B cell function in primary tumors during development and those under immunotherapy treatment. Illuminating the heterogeneous nature of B cell subset composition, generation, localization, and related immune network in tumor is of immense significance for comprehensively understanding B cell response in tumor and designing more efficacious cancer immunotherapies.
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