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Ding Q, Li R, Wang Q, Yu L, Zi F. A pan-cancer analysis of the role of argininosuccinate synthase 1 in human tumors. Front Oncol 2023; 13:1049147. [PMID: 38053661 PMCID: PMC10694447 DOI: 10.3389/fonc.2023.1049147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/01/2023] [Indexed: 12/07/2023] Open
Abstract
Aim There is accumulating evidence indicating that ASS1 is closely related to tumors. No pan-cancer analysis of ASS1 was available. Methods Here we explored the gene expression and survival analysis of ASS1 across thirty-three tumors based on the datasets of the TCGA (Cancer Genome Atlas), the GEO (Gene Expression Omnibus), and the GEPIA2 (Gene Expression Profiling Interactive Analysis, version 2). Results ASS1 is highly expressed in most normal tissues and is related to the progression of some tumors. We also report ASS1 genetic alteration and their association with tumor prognosis and report differences in ASS1 phosphorylation sites between tumors and control normal tissues. ASS1 expression was associated with the infiltration of cancer-associated fibroblasts (CAFs) for the TCGA tumors of BRCA (Breast invasive carcinoma), CESC (Cervical squamous cell carcinoma and endocervical adenocarcinoma), COAD (Colon adenocarcinoma), ESCA (Esophageal carcinoma), SKCM (Skin cutaneous melanoma), SKCM-Metastasis, TGCT (Testicular germ cell tumors), and endothelial cell for the tumors of BRCA, BRCA-Basal, CESC, ESCA, KIRC (Kidney renal clear cell carcinoma), LUAD (Lung adenocarcinoma), LUSC (Lung squamous cell carcinoma), SKCM, SKCM-Metastasis, SKCM-Primary, STAD (Stomach adenocarcinoma), and TGCT. The KEGG and GO analysis were used to analyze ASS1-related signaling pathways. Finally, we used Huh7 cell line to verify the function of ASS1 in vitro. After ASS1 knockdown using small interfering RNA (siRNA), the proliferation and invasion of Huh7 were enhanced, cyclin D1 was up-regulated, and anti-apoptotic protein bax was down-regulated, suggesting that ASS1 is a tumor suppressor gene in hepatocellular carcinoma. Conclusion Our first pan-cancer study offers a relatively comprehensive understanding of the roles of ASS1 in different tumors.
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Affiliation(s)
- Qiang Ding
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- Institute of Hematology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ruiqi Li
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- Institute of Hematology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qingming Wang
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- Institute of Hematology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Li Yu
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- Institute of Hematology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- Institute of Hematology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Guo N, Song Y, Zi F, Zheng J, Cheng J. Abnormal expression pattern of lncRNA H19 participates in multiple myeloma bone disease by unbalancing osteogenesis and osteolysis. Int Immunopharmacol 2023; 119:110058. [PMID: 37058751 DOI: 10.1016/j.intimp.2023.110058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 03/07/2023] [Accepted: 03/16/2023] [Indexed: 04/16/2023]
Abstract
BACKGROUND Accumulating genetic and epigenetic alterations in multiple myeloma (MM) have been demonstrated to be closely associated with osteolytic bone disease, generally characterized as increased osteoclast formation and decreased osteoblast activity. Previously, serum long non-coding RNA (lncRNA) H19 has been proved to be a biomarker for the diagnosis of MM. Whereas, its role in MM-associated bone homeostasis remains largely elusive. METHODS A cohort of 42 MM patients and 40 healthy volunteers were enrolled for evaluating differential expressions of H19 and its downstream effectors. The proliferative capacity of MM cells was monitored by CCK-8 assay. Alkaline phosphatase (ALP) staining and activity detection, either with Alizarin red staining (ARS) were employed to assess osteoblast formation. Osteoblast- or osteoclast-associated gene were detected using qRT-PCR and western blot analysis. Bioinformatics analysis, RNA pull-down, RNA immunoprecipitation (RIP), and chromatin immunoprecipitation (ChIP) were subjected to verify H19/miR-532-3p/E2F7/EZH2 axis, which was accounted for epigenetic suppression of PTEN. The functional role of H19 on MM development through unbalancing osteolysis and osteogenesis was also confirmed in the murine MM model. RESULTS Upregulation of serum H19 was observed in MM patients, suggesting its positive correlation with the poor prognosis of MM patients. Loss of H19 dramatically weakened cell proliferation of MM cells, promoted osteoblastic differentiation, and impaired osteoclast activity. While reinforced H19 exhibited the opposite effects. Akt/mTOR signaling plays an indispensable role in H19-mediated osteoblast formation and osteoclastgenesis. Mechanistically, H19 served as a sponge for miR-532-3p to upregulate E2F7, a transcriptional activator of EZH2, thereby accounting for modulating epigenetic suppression of PTEN. The in vivo experiments further validated that H19 exerted important impacts on tumor growth through breaking the balance between osteogenesis and osteolysis via Akt/mTOR signaling. CONCLUSION Collectively, increased enrichment of H19 in MM cells exhibits an essential role in MM development by disturbing bone homeostasis.
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Affiliation(s)
- Ninghong Guo
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Yuan Song
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Jifu Zheng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Jing Cheng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China.
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Abstract
More and more evidence show that HK2 is closely related to tumors. But no pan-cancer analysis is available. This paper aimed to explore the potential roles of HK2 across thirty-three tumors based on the datasets of the cancer genome Atlas (TCGA) and gene expression omnibus. HK2 is highly expressed in most tumors and related to the progression of some tumors. HK2 expression was associated with the infiltration of T follicular helper cells for the TCGA tumors of uveal melanoma, breast invasive carcinoma (BRCA), breast invasive carcinoma-luminalA (BRCA-LumA), head and neck squamous cell carcinoma (HNSC), head and neck squamous cell carcinoma with HPV positive (HNSC-HPV+), and cancer-associated fibroblasts for the tumors of brain lower grade glioma and stomach adenocarcinoma. Our first pan-cancer study offers a relatively comprehensive understanding of the roles of HK2 in different tumors.
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Affiliation(s)
- Ruiqi Li
- grid.412455.30000 0004 1756 5980Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Donghu District, Nanchang, 330006 Jiangxi People’s Republic of China ,grid.260463.50000 0001 2182 8825Institute of Hematology, Nanchang University, Nanchang, China ,Key Laboratory of Hematology, Nanchang, 330006 Jiangxi People’s Republic of China
| | - Shuchong Mei
- grid.412455.30000 0004 1756 5980Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Donghu District, Nanchang, 330006 Jiangxi People’s Republic of China ,grid.260463.50000 0001 2182 8825Institute of Hematology, Nanchang University, Nanchang, China ,Key Laboratory of Hematology, Nanchang, 330006 Jiangxi People’s Republic of China
| | - Qiang Ding
- grid.412455.30000 0004 1756 5980Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Donghu District, Nanchang, 330006 Jiangxi People’s Republic of China ,grid.260463.50000 0001 2182 8825Institute of Hematology, Nanchang University, Nanchang, China ,Key Laboratory of Hematology, Nanchang, 330006 Jiangxi People’s Republic of China
| | - Qingming Wang
- grid.412455.30000 0004 1756 5980Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Donghu District, Nanchang, 330006 Jiangxi People’s Republic of China ,grid.260463.50000 0001 2182 8825Institute of Hematology, Nanchang University, Nanchang, China ,Key Laboratory of Hematology, Nanchang, 330006 Jiangxi People’s Republic of China
| | - Li Yu
- grid.412455.30000 0004 1756 5980Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Donghu District, Nanchang, 330006 Jiangxi People’s Republic of China ,grid.260463.50000 0001 2182 8825Institute of Hematology, Nanchang University, Nanchang, China ,Key Laboratory of Hematology, Nanchang, 330006 Jiangxi People’s Republic of China
| | - Fuming Zi
- grid.412455.30000 0004 1756 5980Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1 Minde Road, Donghu District, Nanchang, 330006 Jiangxi People’s Republic of China ,grid.260463.50000 0001 2182 8825Institute of Hematology, Nanchang University, Nanchang, China ,Key Laboratory of Hematology, Nanchang, 330006 Jiangxi People’s Republic of China
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Mei S, Zhang Y, Yu L, Chen G, Zi F. Expression and role of fibroblast activation protein α in acute myeloid leukemia. Oncol Rep 2020; 45:641-651. [PMID: 33416165 PMCID: PMC7757106 DOI: 10.3892/or.2020.7874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/09/2020] [Indexed: 11/22/2022] Open
Abstract
Currently, the prognosis of acute myeloid leukemia (AML) is poor. In the AML microenvironment, bone marrow (BM) mesenchymal stem cells (BMMSCs) serve an important role in protecting AML cells from chemotherapy-induced apoptosis. The present study aimed to evaluate the expression of fibroblast activation protein α (FAPα) in BMMSCs and BM biopsy samples via flow cytometry, reverse transcription-quantitative PCR and immunohistochemistry, as well as to identify the correlation between the expression of FAPα in BM with clinical parameters and survival of newly diagnosed patients with AML. Subsequently, the protective effect of FAPα on Cytosine arabinoside (Ara-C)-induced apoptosis in Kasumi-1 cells was investigated via small interfering (si)RNA, and its underlying mechanism was examined by western blotting. The results demonstrated significant differences in FAPα expression in BMMSCs and BM biopsy samples between patients with AML and healthy donors. Furthermore, BMMSCs protected Ara-C-induced Kasumi-1 cells from apoptosis, and knockdown of FAPα using siRNA decreased this protection. It was found that Kasumi-1 cells expressed β-catenin, which could be inhibited by Ara-C, and β-catenin expression was significantly activated when co-cultured with BMMSCs, even in the presence of Ara-C. Knockdown of FAPα with siRNA significantly suppressed the expression of β-catenin. The present results indicated that FAPα serves an important role in the AML BM microenvironment, and that increased expression of FAPα in BM may be a poor prognostic factor in patients with AML. Moreover, the current findings demonstrated that BMMSCs protected AML cells from apoptosis, which was in part contributed by FAPα, and may occur via the β-catenin signaling pathway.
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Affiliation(s)
- Shuchong Mei
- Department of Emergency, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yuan Zhang
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Li Yu
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Guoan Chen
- Department of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Zi F, Yu L, Shi Q, Tang A, Cheng J. Ibrutinib in CLL/SLL: From bench to bedside (Review). Oncol Rep 2019; 42:2213-2227. [PMID: 31638169 DOI: 10.3892/or.2019.7364] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 08/01/2019] [Indexed: 11/05/2022] Open
Abstract
B-cell receptor (BCR) signaling is important for the development and maturation of normal B-cells and plays a key role in B-cell malignancies. Bruton's tyrosine kinase (BTK), a crucial terminal kinase enzyme in BCR signaling, has emerged as an attractive target and has been successfully applied in the treatment of hematological malignancies. Ibrutinib, a BTK inhibitor, has demonstrated marked efficacy and tolerability in treatment-naïve, relapsed/refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and mantle cell lymphoma (MCL). Ibrutinib has been approved by the Food and Drug Administration (FDA) for the treatment of CLL/SLL, MCL, marginal zone lymphoma and Waldenström macroglobulinemia and by the China FDA for the treatment of CLL/SLL and MCL. Clinical trials of ibrutinib, as a single agent or combined with chemoimmunotherapy and other promising novel agents in the treatment of B-cell malignancy therapy, such as diffuse large B-cell lymphoma, follicular lymphoma, multiple myeloma, primary and secondary CNS lymphoma and acute lymphoblastic leukemia, T-cell lymphoma and myelodysplastic syndrome, are ongoing (https://clinicaltrials.gov/). The aim of the present review was mainly to cover the clinical developments regarding the use of ibrutinib in the treatment of CLL/SLL, as well as its safety and toxicity profile.
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Affiliation(s)
- Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Li Yu
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qingzhi Shi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Aiping Tang
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jing Cheng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Yan H, He D, Huang X, Zhang E, Chen Q, Xu R, Liu X, Zi F, Cai Z. Role of interleukin-32 in cancer biology. Oncol Lett 2018; 16:41-47. [PMID: 29930712 DOI: 10.3892/ol.2018.8649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/30/2018] [Indexed: 12/13/2022] Open
Abstract
Interleukin-32 (IL-32), a novel proinflammatory cytokine, is highly expressed in various cancer tissues and in established cancer cell lines. IL-32 has been revealed to serve a crucial role in human cancer development, including tumour initiation, proliferation and maintenance. The expression of IL-32 is regulated by numerous factors, including genetic variations, hypoxia and acidosis in the tumour microenvironment. Understanding the underlying mechanisms of IL-32 expression and its function are critical for the discovery of novel therapeutic strategies that target IL-32. This is a review of the current literature on the regulation and function of IL-32 in cancer progression, focusing on the molecular pathways linking IL-32 and tumour development.
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Affiliation(s)
- Haimeng Yan
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Donghua He
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Xi Huang
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Enfan Zhang
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Qingxiao Chen
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Ruyi Xu
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Xinling Liu
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
| | - Fuming Zi
- Department of Haematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330001, P.R. China
| | - Zhen Cai
- Bone Marrow Transplantation Centre, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, P.R. China
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7
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He D, Guo X, Zhang E, Zi F, Chen J, Chen Q, Lin X, Yang L, Li Y, Wu W, Yang Y, He J, Cai Z. Quercetin induces cell apoptosis of myeloma and displays a synergistic effect with dexamethasone in vitro and in vivo xenograft models. Oncotarget 2018; 7:45489-45499. [PMID: 27329589 PMCID: PMC5216736 DOI: 10.18632/oncotarget.9993] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/28/2016] [Indexed: 12/01/2022] Open
Abstract
Quercetin, a kind of dietary flavonoid, has shown its anticancer activity in many kinds of cancers including hematological malignancies (acute myelogenous leukemia, chronic myelogenous leukemia, chronic lymphocytic leukemia, and MM) in vitro and in vivo. However, its effects on MM need further investigation. In this study, MM cell lines were treated with quercetin alone or in combination with dexamethasone. In order to observe the effects in vivo, a xenograft model of human myeloma was established. Quercetin inhibited proliferation of MM cells (RPMI8226, ARP-1, and MM.1R) by inducing cell cycle arrest in the G2/M phase and apoptosis. Western blot showed that quercetin downregulated c-myc expression and upregulated p21 expression. Quercetin also activated caspase-3, caspase-9, and poly(ADP-ribose)polymerase 1. Caspase inhibitors partially blocked apoptosis induced by quercetin. Furthermore, quercetin combined with dexamethasone significantly increased MM cell apoptosis. In vivo xenograft models, quercetin obviously inhibited tumor growth. Caspase-3 was activated to a greater extent when quercetin was combined with dexamethasone. In conclusion, quercetin alone or in combination with dexamethasone may be an effective therapy for MM.
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Affiliation(s)
- Donghua He
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xing Guo
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Enfan Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jing Chen
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Qingxiao Chen
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xuanru Lin
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Li Yang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yi Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wenjun Wu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yang Yang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jingsong He
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhen Cai
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Zi F, Zi H, Li Y, He J, Shi Q, Cai Z. Metformin and cancer: An existing drug for cancer prevention and therapy. Oncol Lett 2017; 15:683-690. [PMID: 29422962 PMCID: PMC5772929 DOI: 10.3892/ol.2017.7412] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 09/22/2017] [Indexed: 12/17/2022] Open
Abstract
Metformin is a standard clinical drug used to treat type 2 diabetes mellitus (T2DM) and polycystic ovary syndrome. Recently, epidemiological studies and meta-analyses have revealed that patients with T2DM have a lower incidence of tumor development than healthy controls and that patients diagnosed with cancer have a lower risk of mortality when treated with metformin, demonstrating an association between metformin and tumorigenesis. In vivo and in vitro studies have revealed that metformin has a direct antitumor effect, which may depress tumor proliferation and induce the apoptosis, autophagy and cell cycle arrest of tumor cells. The mechanism underpinning the antitumor effect of metformin has not been well established. Studies have demonstrated that reducing insulin and insulin-like growth factor levels in the peripheral blood circulation may lead to the inhibition of phosphoinositide 3-kinase/Akt/mechanistic target of rapamycin (mTOR) signaling or activation of AMP-activated protein kinase, which inhibits mTOR signaling, a process that may be associated with the antitumor effect of metformin. The present review primarily focuses on the recent progress in understanding the function of metformin in tumor development.
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Affiliation(s)
- Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Huapu Zi
- Department of Oncology, Rizhao Traditional Chinese Medicine Hospital of Shandong Traditional Chinese Medicine University, Rizhao, Shandong 276800, P.R. China
| | - Yi Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, P.R. China
| | - Jingsong He
- Bone Marrow Transplantation Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, P.R. China
| | - Qingzhi Shi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Zhen Cai
- Bone Marrow Transplantation Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, P.R. China
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Cheng J, Zheng J, Guo N, Zi F. I‑BET151 inhibits osteoclastogenesis via the RANKL signaling pathway in RAW264.7 macrophages. Mol Med Rep 2017; 16:8406-8412. [PMID: 28983590 DOI: 10.3892/mmr.2017.7631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 07/12/2017] [Indexed: 11/06/2022] Open
Abstract
Excessive bone resorption mediated by osteoclasts may lead to the risk of various lytic bone diseases. In the present study, the effects of I‑BET151, a bromodomain and extra terminal domain protein inhibitor, on osteoclastogenesis in RAW264.7 cells and the underlying mechanism of this process was investigated. Cells were divided into 6 groups, including the control group, receptor activator of nuclear factor‑κB ligand (RANKL) group and 4 other groups containing RANKL and I‑BET151 at different concentrations. Tartrate‑resistant acid phosphatase (TRACP) staining was used to observe the effect of I‑BET151 on osteoclastogenesis and the number of TRACP positive multinucleated cells was calculated. Western blotting was used to evaluate the expression of tumor necrosis factor receptor associated factor (TRAF6), nuclear factor of activated T‑cells cytoplasmic 1 (NFATcl), transcription factor p65 (p65), nuclear factor of κ light polypeptide gene enhancer in B‑cells inhibitor‑α (IκB‑α), extracellular signal‑regulated kinase, Jun N‑terminal kinase (JNK) and p38. mRNA expression levels of osteoclast specific genes TRACP, matrix metalloproteinase‑9 (MMP9), cathepsin K (CtsK) and proto‑oncogene tyrosine‑protein kinase Src (c‑Src) were measured using the reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). TRACP staining results demonstrated that I‑BET151 inhibited osteoclastogenesis induced by RANKL and the inhibition was dose dependent. TRACP multinucleated positive cells were significantly decreased when treated with I‑BET151 compared with the RANKL group. The inhibitory effect on TRAF6 was significant when concentrations of 100 and 200 nM I‑BET151 were used, and NFATcl was significantly inhibited when a concentration of 200 nM was used compared with the RANKL group, in a dose-dependent manner. Nuclear translocation of p65 was significantly inhibited by I‑BET151 at all concentrations. The degradation of IκB‑α, and phosphorylation of JNK and p38 were also significantly inhibited by I‑BET151, with the exception of the expression of IκB‑α following treatment with 50 nM I‑BET151. The RT‑qPCR results revealed that osteoclast‑specific genes TRACP, MMP9, CtsK and c‑Src were all dose‑dependently inhibited by I‑BET151, except for CtsK. In conclusion, I‑BET151 may significantly suppress the osteoclastogenesis of RAW264.7 cells via the RANKL signaling pathway.
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Affiliation(s)
- Jing Cheng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jifu Zheng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ninghong Guo
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Fuming Zi
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Zi F, He J, He D, Li Y, Yang L, Cai Z. Fibroblast activation protein α in tumor microenvironment: recent progression and implications (review). Mol Med Rep 2015; 11:3203-11. [PMID: 25593080 PMCID: PMC4368076 DOI: 10.3892/mmr.2015.3197] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 08/14/2014] [Indexed: 02/07/2023] Open
Abstract
Accumulated evidence has demonstrated that the microenvironment of a given tumor is important in determining its drug resistance, tumorigenesis, progression and metastasis. These microenvironments, like tumor cells, are vital targets for cancer therapy. The cross-talk between tumor cells and cancer-associated fibroblasts (CAFs, alternatively termed activated fibroblasts) is crucial in regulating the drug resistance, tumorigenesis, neoplastic progression, angiogenesis, invasion and metastasis of a tumor. Fibroblast activation protein α (FAPα) is a transmembrane serine protease and is highly expressed on CAFs present in >90% of human epithelial neoplasms. FAPα activity, alongside that of gelatinase and type I collagenase, has become increasingly important in cancer therapy due to its effectiveness in modulating tumor behavior. In this review, recent progression in the knowledge of the role of FAPα in tumor microenvironments is discussed.
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Affiliation(s)
- Fuming Zi
- Department of Hematology, Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jingsong He
- Department of Hematology, Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Donghua He
- Department of Hematology, Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Yi Li
- Department of Hematology, Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Li Yang
- Department of Hematology, Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Zhen Cai
- Department of Hematology, Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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Wang Y, Zi F, Wang Y, Zhao Y, Zhang X, Weng S. [Study on the ingredients of reserpine by TLC-FT-SERS]. Guang Pu Xue Yu Guang Pu Fen Xi 1999; 19:824-826. [PMID: 15822308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A new method for analysing the ingredients of reserpine by thin layer chromatography (TLC) and surface-enhanced Raman spectroscopy (SERS) is reported in this paper. The results show that the characteristic spectral bands of reserpine satuated at the thin layer with the amount of sample about 2 microg were obtained. The difference between SERS and solid spectra was found. An absorption model of reserpine and silver sol was proposed. This method can be used to analyse the chemical ingredients with high sensitivity.
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Affiliation(s)
- Y Wang
- Chemistry Department, Capital Normol University, 100037 Beijing
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