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Niu W, Feng Y, Peng M, Cai J. A narrative review on the mechanism of natural flavonoids in improving glucolipid metabolism disorders. Phytother Res 2024. [PMID: 38924256 DOI: 10.1002/ptr.8276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/29/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024]
Abstract
Glucolipid metabolism disorder (GLMD) is a complex chronic disease characterized by glucose and lipid metabolism disorders with a complex and diverse etiology and rapidly increasing incidence. Many studies have identified the role of flavonoids in ameliorating GLMD, with mechanisms related to peroxisome proliferator-activated receptors, nuclear factor kappa-B, AMP-activated protein kinase, nuclear factor (erythroid-derived 2)-like 2, glucose transporter type 4, and phosphatidylinositol-3-kinase/protein kinase B pathway. However, a comprehensive summary of the flavonoid effects on GLMD is lacking. This study reviewed the roles and mechanisms of natural flavonoids with different structures in the treatment of GLMD reported globally in the past 5 years and provides a reference for developing flavonoids as drugs for treating GLMD.
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Affiliation(s)
- Wenjing Niu
- Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial TCM Key Laboratory for Metabolic Diseases, Guangzhou, China
| | - Yongshi Feng
- Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial TCM Key Laboratory for Metabolic Diseases, Guangzhou, China
| | - Minwen Peng
- Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial TCM Key Laboratory for Metabolic Diseases, Guangzhou, China
| | - Jinyan Cai
- Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial TCM Key Laboratory for Metabolic Diseases, Guangzhou, China
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2
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Bahman F, Al-Roub A, Akhter N, Al Madhoun A, Wilson A, Almansour N, Al-Rashed F, Sindhu S, Al-Mulla F, Ahmad R. TNF-α/Stearate Induced H3K9/18 Histone Acetylation Amplifies IL-6 Expression in 3T3-L1 Mouse Adipocytes. Int J Mol Sci 2024; 25:6776. [PMID: 38928498 PMCID: PMC11203872 DOI: 10.3390/ijms25126776] [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: 05/08/2024] [Revised: 06/11/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
Extensive evidence supports the connection between obesity-induced inflammation and the heightened expression of IL-6 adipose tissues. However, the mechanism underlying the IL-6 exacerbation in the adipose tissue remains unclear. There is general agreement that TNF-α and stearate concentrations are mildly elevated in adipose tissue in the state of obesity. We hypothesize that TNF-α and stearate co-treatment induce the increased expression of IL-6 in mouse adipocytes. We therefore aimed to determine IL-6 gene expression and protein production by TNF-α/stearate treated adipocytes and investigated the mechanism involved. To test our hypothesis, 3T3-L1 mouse preadipocytes were treated with TNF-α, stearate, or TNF-α/stearate. IL-6 gene expression was assessed by quantitative real-time qPCR. IL-6 protein production secreted in the cell culture media was determined by ELISA. Acetylation of histone was analyzed by Western blotting. Il6 region-associated histone H3 lysine 9/18 acetylation (H3K9/18Ac) was determined by ChIP-qPCR. 3T3-L1 mouse preadipocytes were co-challenged with TNF-α and stearate for 24 h, which led to significantly increased IL-6 gene expression (81 ± 2.1 Fold) compared to controls stimulated with either TNF-α (38 ± 0.5 Fold; p = 0.002) or stearate (56 ± 2.0 Fold; p = 0.013). As expected, co-treatment of adipocytes with TNF-α and stearate significantly increased protein production (338 ± 11 pg/mL) compared to controls stimulated with either TNF-α (28 ± 0.60 pg/mL; p = 0.001) or stearate (53 ± 0.20 pg/mL, p = 0.0015). Inhibition of histone acetyltransferases (HATs) with anacardic acid or curcumin significantly reduced the IL-6 gene expression and protein production by adipocytes. Conversely, TSA-induced acetylation substituted the stimulatory effect of TNF-α or stearate in their synergistic interaction for driving IL-6 gene expression and protein production. Mechanistically, TNF-α/stearate co-stimulation increased the promoter-associated histone H3 lysine 9/18 acetylation (H3K9/18Ac), rendering a transcriptionally permissive state that favored IL-6 expression at the transcriptional and translational levels. Our data represent a TNF-α/stearate cooperativity model driving IL-6 expression in 3T3-L1 cells via the H3K9/18Ac-dependent mechanism, with implications for adipose IL-6 exacerbations in obesity.
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Affiliation(s)
- Fatemah Bahman
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Areej Al-Roub
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Nadeem Akhter
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Ashraf Al Madhoun
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman 15462, Kuwait;
| | - Ajit Wilson
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Nourah Almansour
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Fatema Al-Rashed
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Sardar Sindhu
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman 15462, Kuwait;
| | - Fahd Al-Mulla
- Translational Research Department, Dasman Diabetes Institute, Dasman 15462, Kuwait;
| | - Rasheed Ahmad
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
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Jo D, Ahn SY, Choi SY, Choi Y, Lee DH, Song J. Positive Effects of Adiponectin, BDNF, and GLP-1 on Cortical Neurons Counteracting Palmitic Acid Induced Neurotoxicity. Clin Nutr Res 2024; 13:121-129. [PMID: 38784850 PMCID: PMC11109930 DOI: 10.7762/cnr.2024.13.2.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/15/2024] [Accepted: 04/21/2024] [Indexed: 05/25/2024] Open
Abstract
The prevalence of metabolic syndrome caused by diets containing excessive fatty acids is increasing worldwide. Patients with metabolic syndrome exhibit abnormal lipid profiles, chronic inflammation, increased levels of saturated fatty acids, impaired insulin sensitivity, excessive fat accumulation, and neuropathological issues such as memory deficits. In particular, palmitic acid (PA) in saturated fatty acids aggravates inflammation, insulin resistance, impaired glucose tolerance, and synaptic failure. Recently, adiponectin, brain-derived neurotrophic factor (BDNF), and glucose-like peptide-1 (GLP-1) have been investigated to find therapeutic solutions for metabolic syndrome, with findings suggesting that they are involved in insulin sensitivity, enhanced lipid profiles, increased neuronal survival, and improved synaptic plasticity. We investigated the effects of adiponectin, BDNF, and GLP-1 on neurite outgrowth, length, and complexity in PA-treated primary cortical neurons using Sholl analysis. Our findings demonstrate the therapeutic potential of adiponectin, BDNF, and GLP-1 in enhancing synaptic plasticity within brains affected by metabolic imbalance. We underscore the need for additional research into the mechanisms by which adiponectin, BDNF, and GLP-1 influence neural complexity in brains with metabolic imbalances.
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Affiliation(s)
- Danbi Jo
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Seo Yeon Ahn
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Korea
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Korea
| | - Seo Yoon Choi
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Korea
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Korea
| | - Yoonjoo Choi
- Department of MRC, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Dong Hoon Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun 58128, Korea
| | - Juhyun Song
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Korea
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Korea
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4
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Siewe N, Friedman A. A mathematical model of obesity-induced type 2 diabetes and efficacy of anti-diabetic weight reducing drug. J Theor Biol 2024; 581:111756. [PMID: 38307451 DOI: 10.1016/j.jtbi.2024.111756] [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: 08/17/2023] [Revised: 11/04/2023] [Accepted: 01/26/2024] [Indexed: 02/04/2024]
Abstract
The dominant paradigm for modeling the obesity-induced T2DM (type 2 diabetes mellitus) today focuses on glucose and insulin regulatory systems, diabetes pathways, and diagnostic test evaluations. The problem with this approach is that it is not possible to explicitly account for the glucose transport mechanism from the blood to the liver, where the glucose is stored, and from the liver to the blood. This makes it inaccurate, if not incorrect, to properly model the concentration of glucose in the blood in comparison to actual glycated hemoglobin (A1C) test results. In this paper, we develop a mathematical model of glucose dynamics by a system of ODEs. The model includes the mechanism of glucose transport from the blood to the liver, and from the liver to the blood, and explains how obesity is likely to lead to T2DM. We use the model to evaluate the efficacy of an anti-T2DM drug that also reduces weight.
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Affiliation(s)
- Nourridine Siewe
- School of Mathematics and Statistics, College of Science, Rochester Institute of Technology, Rochester, NY, USA.
| | - Avner Friedman
- Department of Mathematics, The Ohio State University, Columbus, OH, USA
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Wang J, Liu J, Yuan C, Yang B, Pang H, Chen K, Feng J, Deng Y, Zhang X, Li W, Wang C, Xie J, Zhang J. Palmitic acid-activated GPRs/KLF7/CCL2 pathway is involved in the crosstalk between bone marrow adipocytes and prostate cancer. BMC Cancer 2024; 24:75. [PMID: 38221626 PMCID: PMC10789002 DOI: 10.1186/s12885-024-11826-5] [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: 03/31/2023] [Accepted: 01/03/2024] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND Obesity-induced abnormal bone marrow microenvironment is one of the important risk element for bone metastasis in prostate cancer (PCa). The present study aimed to determine whether obesity-induced elevation in palmitic acid (PA), which is the most abundant of the free fatty acids (FFAs), increased CCL2 via the GPRs/KLF7 pathway in bone marrow adipocytes (BMA) to facilitate PCa growth and metastasis. METHODS We constructed a bone-tumor bearing mouse model with obesity through high-fat diet, and observed the tumor formation ability of PCa cells. In vitro, observe the effect of PA on the expression level of CCL2 in BMA through GPRs/KLF7 signaling pathway. After co-culture of BMA and PCa cells, CCK8 assay and transwell experiment were used to detect the changes in biological behavior of PCa cells stimulated by BMA. RESULTS The BMA distribution in the bone marrow cavity of BALB/c nude mice fed with the high-fat diet (HFD) was evidently higher than that in the mice fed with the normal diet (ND). Moreover, HFD-induced obesity promoted KLF7/CCL2 expression in BMA and PCa cell growth in the bone marrow cavity of the mice. In the vitro experiment, a conditioned medium with increased CCL2 obtained from the BMA cultured with PA (CM-BMA-PA) was used for culturing the PCa cell lines, which evidently enhanced the proliferation, invasion, and migration ability. KLF7 significantly increased the CCL2 expression and secretion levels in BMA by targeting the promoter region of the CCL2 gene. In addition, GPR40/120 engaged in the PA-induced high KLF7/CCL2 levels in BMA to facilitate the malignant progression of PC-3 cells. CONCLUSIONS PA-activated GPRs/KLF7/CCL2 pathway in BMA facilitates prostate cancer growth and metastasis.
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Affiliation(s)
- Jingzhou Wang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
- Laboratory of Xinjiang Endemic and Ethic Diseases, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Jie Liu
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
- Laboratory of Xinjiang Endemic and Ethic Diseases, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Chenggang Yuan
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Bingqi Yang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Huai Pang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Keru Chen
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Jiale Feng
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Yuchun Deng
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Xueting Zhang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Wei Li
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China
| | - Cuizhe Wang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China.
- Laboratory of Xinjiang Endemic and Ethic Diseases, Shihezi University, Shihezi, 832000, Xinjiang, China.
| | - Jianxin Xie
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China.
- Laboratory of Xinjiang Endemic and Ethic Diseases, Shihezi University, Shihezi, 832000, Xinjiang, China.
| | - Jun Zhang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, 832000, Xinjiang, China.
- Laboratory of Xinjiang Endemic and Ethic Diseases, Shihezi University, Shihezi, 832000, Xinjiang, China.
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Tshivhase AM, Matsha T, Raghubeer S. Resveratrol attenuates high glucose-induced inflammation and improves glucose metabolism in HepG2 cells. Sci Rep 2024; 14:1106. [PMID: 38212345 PMCID: PMC10784549 DOI: 10.1038/s41598-023-50084-6] [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: 09/19/2023] [Accepted: 12/15/2023] [Indexed: 01/13/2024] Open
Abstract
Diabetes mellitus (DM) is characterized by impaired glucose and insulin metabolism, resulting in chronic hyperglycemia. Hyperglycemia-induced inflammation is linked to the onset and progression of diabetes. Resveratrol (RES), a polyphenol phytoalexin, is studied in diabetes therapeutics research. This study evaluates the effect of RES on inflammation and glucose metabolism in HepG2 cells exposed to high glucose. Inflammation and glucose metabolism-related genes were investigated using qPCR. Further, inflammatory genes were analyzed by applying ELISA and Bioplex assays. High glucose significantly increases IKK-α, IKB-α, and NF-kB expression compared to controls. Increased NF-kB expression was followed by increased expression of pro-inflammatory cytokines, such as TNF-α, IL-6, IL-β, and COX2. RES treatment significantly reduced the expression of NF-kB, IKK-α, and IKB-α, as well as pro-inflammatory cytokines. High glucose levels reduced the expression of TGFβ1, while treatment with RES increased the expression of TGFβ1. As glucose levels increased, PEPCK expression was reduced, and GCK expression was increased in HepG2 cells treated with RES. Further, HepG2 cells cultured with high glucose showed significant increases in KLF7 and HIF1A but decreased SIRT1. Moreover, RES significantly increased SIRT1 expression and reduced KLF7 and HIF1A expression levels. Our results indicated that RES could attenuate high glucose-induced inflammation and enhance glucose metabolism in HepG2 cells.
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Affiliation(s)
- Abegail Mukhethwa Tshivhase
- SAMRC/CPUT Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa
| | - Tandi Matsha
- SAMRC/CPUT Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa
- Sefako Makgatho Health Sciences University, Ga-Rankuwa, 0208, South Africa
| | - Shanel Raghubeer
- SAMRC/CPUT Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa.
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Li H, Li J, Ma Y, Wang Z, Peng Z, Xu H, Bi H, Althaf Hussain S, Li Z. The active phthalate metabolite, DHEP, induces proliferation and metastasis of prostate cancer cells via upregulation of β-catenin and downregulation of KLF7. Bioorg Chem 2023; 141:106864. [PMID: 37734194 DOI: 10.1016/j.bioorg.2023.106864] [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: 07/28/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/23/2023]
Abstract
Phthalates such as DHEP are among the widely used compounds in industry. It has been shown that DHEP can convey various biological consequences in mammalian cells, among them, the carcinogenic effects of DHEP are emphasized. The present study aimed to assess the impact of DHEP exposure on the proliferation and invasiveness of DU145 prostate cancer cells through in vitro and in vivo models. The DU145 cells were treated with increasing concentrations of DHEP and the tumorigenic parameters were analyzed. KLF7 as a probable mediator of the effect of DHEP was either overexpressed or knocked down in DU145 to evaluate the probable impact of KLF7 on the biological effects of DHEP. The effect of DHEP was also studied in a DU145 xenograft tumor model. The moderate doses of DHEP increased the proliferation and migration of DU145 cells. In the case of gene expression patterns, DHEP reduced the levels of p53 and KLF7 while elevated the expression of β-catenin. The knock-down of KLF7 conveyed comparable effects to that of DHEP to some degree and increased the proliferation of DU145 cells, while the transduction of KLF7 increased the expressions of p53 and p21 along with controlling the tumor size. The present study demonstrated the potential of DHEP in increasing the tumorigenic properties of DU145 cells along with a focus on the underlying mechanisms. Sustained exposure to DHEP can cause a dysregulation in balance between oncogenes and tumor suppressor genes which is the hallmark of malignant transformation. Thus, special considerations seem necessary for the safe exploitation of phthalates.
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Affiliation(s)
- Hecheng Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Jianping Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Yubo Ma
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Ziming Wang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Zihe Peng
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Hang Xu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Hang Bi
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Shaik Althaf Hussain
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zhaolun Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
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Lin L, Chen X, Lin G, Chen L, Xu Y, Zeng Y. FUT3 facilitates glucose metabolism of lung adenocarcinoma via activation of NF-κB pathway. BMC Pulm Med 2023; 23:436. [PMID: 37946130 PMCID: PMC10636925 DOI: 10.1186/s12890-023-02688-x] [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: 05/13/2023] [Accepted: 09/28/2023] [Indexed: 11/12/2023] Open
Abstract
OBJECTIVE Fucosyltransferases (FUTs) molecules have been identified to be involved in carcinogenesis of malignant tumors. Nevertheless, the biological function of fucosyltransferases-3 (FUT3) in lung adenocarcinoma (LUAD) malignant phenotype remains unclear. Herein, we investigated the association between FUT3 and LUAD pathological process. METHODS Immunochemistry, RT-qPCR and western blot assays were conducted to evaluate the expression of FUT3 in LUAD and corresponding adjacent tissues. The prognostic value of FUT3 was assessed via Kaplan‑Meier plotter database. The biological process and potential mechanism of FUT3 in LUAD were conducted via GSEA. Additionally, immunofluorescence and metabolite activity detection were performed to determine the potential role of FUT3 in LUAD glucose metabolism. The active biomarkers associated with NF-κB signaling pathway were detected via western blot. Subcutaneous tumor model was conducted to analyze the effect of FUT3 on tumorigenesis of LUAD. RESULTS FUT3 was remarkably upregulated in LUAD tissues compared with adjacent tissues from individuals. FUT3 overexpression may predict poor prognosis of LUAD patients. Knockdown of FUT3 significantly inhibited tumor proliferation, migration and glucometabolic alteration in LUAD cells. Moreover, GSEA demonstrated that elevated FUT3 was positively related to NF-κB signaling pathway. Additionally, in vitro and in vivo assays also indicated that downregulation of FUT3 resulted in the suppression of oncogenesis and glucose metabolism via inactivation of NF-κB pathway. CONCLUSION Our findings demonstrated that FUT3 was involved in glucometabolic process and tumorigenesis of LUAD via NF-κB signaling pathway. FUT3 may be an optimal target for diagnosis and treatment of LUAD patients.
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Affiliation(s)
- Lanlan Lin
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Clinical Research Center of Interventional Respirology, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Key Laboratory of Lung Stem Cells, Quanzhou, Fujian Province, 362000, China
| | - Xiaohui Chen
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Clinical Research Center of Interventional Respirology, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Key Laboratory of Lung Stem Cells, Quanzhou, Fujian Province, 362000, China
| | - Guofu Lin
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Clinical Research Center of Interventional Respirology, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Key Laboratory of Lung Stem Cells, Quanzhou, Fujian Province, 362000, China
| | - Luyang Chen
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Clinical Research Center of Interventional Respirology, Quanzhou, Fujian Province, 362000, China
- Fujian Provincial Key Laboratory of Lung Stem Cells, Quanzhou, Fujian Province, 362000, China
| | - Yuan Xu
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, China.
- Fujian Provincial Clinical Research Center of Interventional Respirology, Quanzhou, Fujian Province, 362000, China.
- Clinical Research Center, Quanzhou, Fujian Province, 362000, China.
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, 350000, China.
| | - Yiming Zeng
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, China.
- Fujian Provincial Clinical Research Center of Interventional Respirology, Quanzhou, Fujian Province, 362000, China.
- Fujian Provincial Key Laboratory of Lung Stem Cells, Quanzhou, Fujian Province, 362000, China.
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9
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Garske KM, Kar A, Comenho C, Balliu B, Pan DZ, Bhagat YV, Rosenberg G, Koka A, Das SS, Miao Z, Sinsheimer JS, Kaprio J, Pietiläinen KH, Pajukanta P. Increased body mass index is linked to systemic inflammation through altered chromatin co-accessibility in human preadipocytes. Nat Commun 2023; 14:4214. [PMID: 37452040 PMCID: PMC10349101 DOI: 10.1038/s41467-023-39919-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 07/04/2023] [Indexed: 07/18/2023] Open
Abstract
Obesity-induced adipose tissue dysfunction can cause low-grade inflammation and downstream obesity comorbidities. Although preadipocytes may contribute to this pro-inflammatory environment, the underlying mechanisms are unclear. We used human primary preadipocytes from body mass index (BMI) -discordant monozygotic (MZ) twin pairs to generate epigenetic (ATAC-sequence) and transcriptomic (RNA-sequence) data for testing whether increased BMI alters the subnuclear compartmentalization of open chromatin in the twins' preadipocytes, causing downstream inflammation. Here we show that the co-accessibility of open chromatin, i.e. compartmentalization of chromatin activity, is altered in the higher vs lower BMI MZ siblings for a large subset ( ~ 88.5 Mb) of the active subnuclear compartments. Using the UK Biobank we show that variants within these regions contribute to systemic inflammation through interactions with BMI on C-reactive protein. In summary, open chromatin co-accessibility in human preadipocytes is disrupted among the higher BMI siblings, suggesting a mechanism how obesity may lead to inflammation via gene-environment interactions.
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Affiliation(s)
- Kristina M Garske
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Asha Kar
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Caroline Comenho
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Brunilda Balliu
- Department of Computational Medicine, UCLA, Los Angeles, CA, 90095, USA
| | - David Z Pan
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
- Bioinformatics Interdepartmental Program, UCLA, Los Angeles, CA, 90095, USA
| | - Yash V Bhagat
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Gregory Rosenberg
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Amogha Koka
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Sankha Subhra Das
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Zong Miao
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
- Bioinformatics Interdepartmental Program, UCLA, Los Angeles, CA, 90095, USA
| | - Janet S Sinsheimer
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
- Department of Computational Medicine, UCLA, Los Angeles, CA, 90095, USA
- Bioinformatics Interdepartmental Program, UCLA, Los Angeles, CA, 90095, USA
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, 00014, Finland
| | - Kirsi H Pietiläinen
- Obesity Research Unit, Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland
- Obesity Center, Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, 00014, Finland
| | - Päivi Pajukanta
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA.
- Department of Computational Medicine, UCLA, Los Angeles, CA, 90095, USA.
- Institute for Precision Heath, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA.
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10
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Yang X, Liang M, Tang Y, Ma D, Li M, Yuan C, Hou Y, Sun C, Liu J, Wei Q, Chang Y, Wang C, Zhang J. KLF7 promotes adipocyte inflammation and glucose metabolism disorder by activating the PKCζ/NF-κB pathway. FASEB J 2023; 37:e23033. [PMID: 37342904 DOI: 10.1096/fj.202300005r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/21/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023]
Abstract
In the obesity context, inflammatory cytokines secreted by adipocytes lead to insulin resistance and are key to metabolic syndrome development. In our previous study, we found that the transcription factor KLF7 promoted the expression of p-p65 and IL-6 in adipocytes. However, the specific molecular mechanism remained unclear. In the present study, we found that the expression of KLF7, PKCζ, p-IκB, p-p65, and IL-6 in epididymal white adipose tissue (Epi WAT) in mice fed a high-fat diet (HFD) was significantly increased. In contrast, the expression of PKCζ, p-IκB, p-p65, and IL-6 was significantly decreased in Epi WAT of KLF7 fat conditional knockout mice. In 3T3-L1 adipocytes, KLF7 promoted the expression of IL-6 via the PKCζ/NF-κB pathway. In addition, we performed luciferase reporter and chromatin immunoprecipitation assays, which confirmed that KLF7 upregulated the expression of PKCζ transcripts in HEK-293T cells. Collectively, our results show that KLF7 promotes the expression of IL-6 by upregulating PKCζ expression and activating the NF-κB signaling pathway in adipocytes.
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Affiliation(s)
- Xin Yang
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Maodi Liang
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Yihan Tang
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Dingling Ma
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Menghuan Li
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Chenggang Yuan
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Yanting Hou
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Chaoyue Sun
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Jie Liu
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Qianqian Wei
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Yongsheng Chang
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
- Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Cuizhe Wang
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
| | - Jun Zhang
- Department of Medical Genetics, Medical College of Shihezi University, Shihezi, China
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11
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Rasool A, Mahmoud T, O’Tierney-Ginn P. Lipid Aldehydes 4-Hydroxynonenal and 4-Hydroxyhexenal Exposure Differentially Impact Lipogenic Pathways in Human Placenta. BIOLOGY 2023; 12:biology12040527. [PMID: 37106728 PMCID: PMC10135722 DOI: 10.3390/biology12040527] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/16/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023]
Abstract
Long chain polyunsaturated fatty acids (LCPUFAs), such as the omega-6 (n-6) arachidonic acid (AA) and n-3 docosahexanoic acid (DHA), have a vital role in normal fetal development and placental function. Optimal supply of these LCPUFAs to the fetus is critical for improving birth outcomes and preventing programming of metabolic diseases in later life. Although not explicitly required/recommended, many pregnant women take n-3 LCPUFA supplements. Oxidative stress can cause these LCPUFAs to undergo lipid peroxidation, creating toxic compounds called lipid aldehydes. These by-products can lead to an inflammatory state and negatively impact tissue function, though little is known about their effects on the placenta. Placental exposure to two major lipid aldehydes, 4-hydroxynonenal (4-HNE) and 4-hydroxyhexenal (4-HHE), caused by peroxidation of the AA and DHA, respectively, was examined in the context of lipid metabolism. We assessed the impact of exposure to 25 μM, 50 μM and 100 μM of 4-HNE or 4-HHE on 40 lipid metabolism genes in full-term human placenta. 4-HNE increased gene expression associated with lipogenesis and lipid uptake (ACC, FASN, ACAT1, FATP4), and 4-HHE decreased gene expression associated with lipogenesis and lipid uptake (SREBP1, SREBP2, LDLR, SCD1, MFSD2a). These results demonstrate that these lipid aldehydes differentially affect expression of placental FA metabolism genes in the human placenta and may have implications for the impact of LCPUFA supplementation in environments of oxidative stress.
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12
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Tang Y, Ma D, Liang M, Hou Y, Zhang M, Wang J, Yuan C, Li M, Sun C, Xie J, Wang C, Zhang J. Stress-inducible IL-6 is regulated by KLF7 in brown adipocytes. Heliyon 2023; 9:e14931. [PMID: 37025783 PMCID: PMC10070148 DOI: 10.1016/j.heliyon.2023.e14931] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/19/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
Stress-inducible interleukin 6 (IL-6) is generated in brown adipocytes via beta-3 adrenergic receptor (ADRB3) signaling, which is necessary in stress hyperglycemia, the kind of metabolic adaptation enabling "fight or flight" response by means of liver gluconeogenesis. Nevertheless, the mechanism of ADRB3 signaling mediates IL-6 in brown adipocytes remains unclear. As a result, it is critical to understand how brown adipocytes produce IL-6 via ADRB3 signaling. We found that the ADRB3 agonist and cold stimulation promoted the expression of KLF7 and IL-6 in brown adipocytes of mice. In parallel to these results in vivo, treatment with ADRB3 agonist promoted the expression of KLF7 and the release of IL-6 in primary brown adipocytes of mice. Notably, we discovered that KLF7 positively controls the expression of IL-6 and downregulated KLF7 largely blunted ADRB3 agonist induced IL-6 expressions in brown adipocytes. Our findings suggest that KLF7 is required for the generation of IL-6 when ADRB3 signaling is activated in brown adipocytes.
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13
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Dey S, Murmu N, Mondal T, Saha I, Chatterjee S, Manna R, Haldar S, Dash SK, Sarkar TR, Giri B. Multifaceted entrancing role of glucose and its analogue, 2-deoxy-D-glucose in cancer cell proliferation, inflammation, and virus infection. Biomed Pharmacother 2022; 156:113801. [DOI: 10.1016/j.biopha.2022.113801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/29/2022] [Accepted: 10/02/2022] [Indexed: 11/30/2022] Open
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14
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Xu X, Luo D, Xuan Q, Lu P, Yu C, Guan Q. Atlas of metabolism reveals palmitic acid results in mitochondrial dysfunction and cell apoptosis by inhibiting fatty acid β-oxidation in Sertoli cells. Front Endocrinol (Lausanne) 2022; 13:1021263. [PMID: 36237186 PMCID: PMC9552013 DOI: 10.3389/fendo.2022.1021263] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
In recent years, the impact of lipotoxicity on male fertility has received extensive attention, especially on Sertoli cells (SCs). In SCs, energy metabolism is important as disorders of energy metabolism result in infertility eventually. However, the underlying mechanism of lipotoxicity on energy metabolism in SCs remains unknown. Advances in high-throughput metabolomics and lipidomics measurement platforms provide powerful tools to gain insights into complex biological systems. Here, we aimed to explore the potential molecular mechanisms of palmitic acid (PA) regulating energy metabolism in SCs based on metabolomics and lipidomics. The results showed that glucose metabolism-related metabolites were not significantly changed, which suggested that PA treatment had little effect on glucose metabolism and may not influence the normal energy supply from SCs to germ cells. However, fatty acid β-oxidation was inhibited according to accumulation of medium- and long-chain acylcarnitines in cells. In addition, the pool of amino acids and the levels of most individual amino acids involved in the tricarboxylic acid (TCA) cycle were not changed after PA treatment in SCs. Moreover, PA treatment of SCs significantly altered the lipidome, including significant decreases in cardiolipin and glycolipids as well as remarkable increases in ceramide and lysophospholipids, which indicated that mitochondrial function was affected and apoptosis was triggered. The increased apoptosis rate of SCs was verified by elevated protein expression levels of Cleaved Caspase-3 and Bax as well as decreased Bcl-2 protein expression level. Together, these findings indicated that PA may result in mitochondrial dysfunction and increased apoptosis by inhibiting fatty acid β-oxidation of SCs.
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Affiliation(s)
- Xiaoqin Xu
- Shandong Provincial Hospital, Shandong University, Jinan, China
- Shandong Clinical Research Center of Diabetes and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Laboratory of Endocrinology and Lipid Metabolism, Shandong Provincial Hospital, Jinan, China
- Shandong Prevention and Control Engineering Laboratory of Endocrine and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
| | - Dandan Luo
- Shandong Provincial Hospital, Shandong University, Jinan, China
- Shandong Clinical Research Center of Diabetes and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Laboratory of Endocrinology and Lipid Metabolism, Shandong Provincial Hospital, Jinan, China
- Shandong Prevention and Control Engineering Laboratory of Endocrine and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Qiuhui Xuan
- Shandong Clinical Research Center of Diabetes and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Laboratory of Endocrinology and Lipid Metabolism, Shandong Provincial Hospital, Jinan, China
- Shandong Prevention and Control Engineering Laboratory of Endocrine and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Peng Lu
- Shandong Clinical Research Center of Diabetes and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Laboratory of Endocrinology and Lipid Metabolism, Shandong Provincial Hospital, Jinan, China
- Shandong Prevention and Control Engineering Laboratory of Endocrine and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Chunxiao Yu
- Shandong Provincial Hospital, Shandong University, Jinan, China
- Shandong Clinical Research Center of Diabetes and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Laboratory of Endocrinology and Lipid Metabolism, Shandong Provincial Hospital, Jinan, China
- Shandong Prevention and Control Engineering Laboratory of Endocrine and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Qingbo Guan, ; Chunxiao Yu,
| | - Qingbo Guan
- Shandong Provincial Hospital, Shandong University, Jinan, China
- Shandong Clinical Research Center of Diabetes and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Laboratory of Endocrinology and Lipid Metabolism, Shandong Provincial Hospital, Jinan, China
- Shandong Prevention and Control Engineering Laboratory of Endocrine and Metabolic Diseases, Shandong Provincial Hospital, Jinan, China
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Qingbo Guan, ; Chunxiao Yu,
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