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Ma L, Huang W, Liang X, Bai G, Wang X, Jiang H, Xin Y, Hu L, Chen X, Liu C. Inhibition of squalene epoxidase linking with PI3K/AKT signaling pathway suppresses endometrial cancer. Cancer Sci 2023; 114:3595-3607. [PMID: 37438885 PMCID: PMC10475781 DOI: 10.1111/cas.15900] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/07/2023] [Accepted: 06/18/2023] [Indexed: 07/14/2023] Open
Abstract
Endometrial cancer (EC) is a common malignant tumor that lacks any therapeutic target and, in many cases, recurrence is the leading ca use of morbidity and mortality in women. Widely known EC has a strongly positive correlation with abnormal lipid metabolism. Squalene epoxidase (SQLE), a crucial enzyme in the cholesterol synthesis pathway regulating lipid metabolic processes has been found to be associated with various cancers in recent years. Here, we focused on studying the role of SQLE in EC. Our study revealed that SQLE expression level was upregulated significantly in EC tissues. In vitro experiments showed that SQLE overexpression significantly promoted the proliferation, and inhibited cell apoptosis of EC cells, whereas SQLE knockdown or use of terbinafine showed the opposite results. Furthermore, we found out that the promotional effect of SQLE on the proliferation of EC cells might be achieved by activating the PI3K/AKT pathway. In vivo, studies confirmed that the knockdown of SQLE or terbinafine can observably inhibit tumor growth in nude mice. These results indicate that SQLE may promote the progression of EC by activating the PI3K/AKT pathway. Moreover, SQLE is a potential target for EC treatment and its inhibitor, terbinafine, has the potential to become a targeted drug for EC treatment.
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Affiliation(s)
- Liangjian Ma
- Key Laboratory of Gynecologic Oncology Gansu ProvinceThe First Hospital of Lanzhou UniversityLanzhouChina
| | - Wunan Huang
- Key Laboratory of Gynecologic Oncology Gansu ProvinceThe First Hospital of Lanzhou UniversityLanzhouChina
| | - Xiaolei Liang
- Key Laboratory of Gynecologic Oncology Gansu ProvinceThe First Hospital of Lanzhou UniversityLanzhouChina
| | - Guannan Bai
- The Children's HospitalZhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouChina
| | - Xiaochen Wang
- Key Laboratory of Cancer Prevention and Intervention, Department of Breast Surgery and Oncology, Ministry of Education, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Hua Jiang
- Department of Otolaryngology, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Yang Xin
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthNational Children's Regional Medical CenterHangzhouChina
| | - Lidan Hu
- The Children's HospitalZhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouChina
| | - Xiangjun Chen
- Eye Center of the Second Affiliated Hospital, Institute of Translational Medicine, School of MedicineZhejiang UniversityHangzhouChina
| | - Chang Liu
- Key Laboratory of Gynecologic Oncology Gansu ProvinceThe First Hospital of Lanzhou UniversityLanzhouChina
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Hu D, Du J, Xing Y, Cheng Y, He R, Liang X, Li H, Yang Y. SIK2: A critical glucolipid metabolic reprogramming regulator and potential target in ovarian cancer. J Obstet Gynaecol Res 2023. [PMID: 37317594 DOI: 10.1111/jog.15714] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/30/2023] [Indexed: 06/16/2023]
Abstract
AIM To explore the role of salt-inducible kinase 2 (SIK2) on glucose and lipid metabolism in ovarian cancer (OC), so as to increase the understanding of potential inhibitors targeting SIK2 and lay a foundation for future precision medicine in OC patients. METHODS We reviewed and summarized the regulation effect of SIK2 on glycolysis, gluconeogenesis, lipid synthesis, and fatty acids β-oxidation (FAO) in OC, as well as the potential molecular mechanism and the prospects of potential inhibitors targeting SIK2 in future cancer treatments. RESULTS Many pieces of evidence show that SIK2 is closed associated with glucose and lipid metabolism of OC. On the one hand, SIK2 enhances the Warburg effect by promoting glycolysis and inhibiting oxidative phosphorylation and gluconeogenesis, on the other hand, SIK2 regulates intracellular lipid metabolism through promoting lipid synthesis and FAO, all of which ultimately induces growth, proliferation, invasion, metastasis, and therapeutic resistance of OC. On this basis, SIK2 targeting may become a new solution for the treatment of a variety of cancer types including OC. The efficacy of some small molecule kinase inhibitors has also been demonstrated in tumor clinical trials. CONCLUSION SIK2 displays significant effects in OC progression and treatment through regulating cellular metabolism including glucose and lipid metabolism. Therefore, future research needs to further explore the molecular mechanisms of SIK2 in other types of energy metabolism in OC, based on this to develop more unique and effective inhibitors.
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Affiliation(s)
- Dan Hu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
| | - JunHong Du
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
| | - YiJuan Xing
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
| | - YueMei Cheng
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
| | - RuiFen He
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
| | - XiaoLei Liang
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
- Department of Gynecology, the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - HongLi Li
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
- Department of Gynecology, the First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - YongXiu Yang
- Key Laboratory for Gynecologic Oncology Gansu Province, Lanzhou, Gansu, China
- Department of Gynecology, the First Hospital of Lanzhou University, Lanzhou, Gansu, China
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Gan J, Ji CF, Mao XR, Wang JT, Lyu CY, Shi YF, Liao Y, He YL, Shu L, Li L, Li JF. [Synchronization isolation method for multiple types of cells from mouse liver]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:532-537. [PMID: 37365031 DOI: 10.3760/cma.j.cn501113-20220827-00433] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Objective: To explore a simple and feasible method for the isolation and purification of hepatocytes, hepatic stellate cells (HSC), and lymphocytes from mice. Methods: The cell suspension was obtained from male C57bl/6 mice by hepatic perfusion through the portal vein digestion method and then isolated and purified by discontinuous Percoll gradient centrifugation. Trypan blue exclusion was used to determine cell viability. Glycogen staining, cytokeratin 18, and transmission electron microscopy were used to identify hepatic cells. Immunofluorescence was used to detect α-smooth muscle actin combined with desmin in HSCs. Flow cytometry was used to analyze lymphocyte subsets in the liver. Results: After isolation and purification, about 2.7×10(7) hepatocytes, 5.7×10(5) HSCS, and 4.6×106 hepatic mononuclear cells were obtained from the liver of mice with a body weight of about 22g. The cell survival rate in each group was > 95%. Hepatocytes were apparent in glycogen deposited purple-red granules and cytokeratin 18. Electron microscopy showed that there were abundant organelles in hepatocytes and tight junctions between cells. HSC had expressed α-smooth muscle actin and desmin. Flow cytometry showed hepatic mononuclear cells, including lymphocyte subsets such as CD4, CD8, NKs, and NKTs. Conclusion: The hepatic perfusion through the portal vein digestion method can isolate multiple primary cells from the liver of mice at once and has the features of simplicity and efficiency.
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Affiliation(s)
- J Gan
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - C F Ji
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - X R Mao
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - J T Wang
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - C Y Lyu
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Y F Shi
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Y Liao
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Y L He
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - L Shu
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - L Li
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - J F Li
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
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Shi Z, Wang H, Zhang Y, Jia L, Pang H, Feng H, Wang X. The involvement of extracellular ATP in regulating the stunted growth of Arabidopsis plants by repeated wounding. BMC Plant Biol 2022; 22:279. [PMID: 35676637 PMCID: PMC9175478 DOI: 10.1186/s12870-022-03656-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Extracellular ATP (exATP) has been shown to act as a signal molecule for regulating growth, development, and responses of plants to the external environment. RESULTS In this study, we investigated the possible involvement of exATP in regulating the stunted growth caused by repeated wounding. The present work showed that the repeated wounding caused the decreases in leaf area, fresh weight, dry weight, and root length of Arabidopsis seedlings, while the exATP level was enhanced by the repeated wounding. Repeated application of exogenous ATP had similar effects on the plant growth, as the repeated wounding. Through the comparison of p2k1-3 mutant (in which T-DNA disrupted the gene coding P2K1, as exATP receptor) and wide type (WT) plants, it was found that the mutation in P2K1 decreased the sensitivity of plant growth to the repeated wounding and exogenous ATP application. Further works showed that the ibuprofen (IBU, an inhibitor of jasmonate biosynthesis) partially rescued the wound-induced growth degradation. In comparison, the P2K1 mutation partly rescued the wound-induced growth degradation, whereas this mutation failed to do so in the wounded seedlings treated with IBU, indicating that the role of exATP in regulating the growth degradation by repeated wounding could be linked to the JA signaling pathway. CONCLUSIONS In conclusion, these results indicate that exATP could be a regulator for the stunted growth of plants by repeated wounding.
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Affiliation(s)
- Zhenzhen Shi
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Hanqi Wang
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Yuejing Zhang
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Lingyun Jia
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Hailong Pang
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Hanqing Feng
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China.
| | - Xin Wang
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, 730070, China
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