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Park JH, Kwon S, Park YM. Extracellular Vimentin Alters Energy Metabolism And Induces Adipocyte Hypertrophy. Diabetes Metab J 2024; 48:215-230. [PMID: 37750184 PMCID: PMC10995492 DOI: 10.4093/dmj.2022.0332] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 06/19/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGRUOUND Previous studies have reported that oxidative stress contributes to obesity characterized by adipocyte hypertrophy. However, mechanism has not been studied extensively. In the current study, we evaluated role of extracellular vimentin secreted by oxidized low-density lipoprotein (oxLDL) in energy metabolism in adipocytes. METHODS We treated 3T3-L1-derived adipocytes with oxLDL and measured vimentin which was secreted in the media. We evaluated changes in uptake of glucose and free fatty acid, expression of molecules functioning in energy metabolism, synthesis of adenosine triphosphate (ATP) and lactate, markers for endoplasmic reticulum (ER) stress and autophagy in adipocytes treated with recombinant vimentin. RESULTS Adipocytes secreted vimentin in response to oxLDL. Microscopic evaluation revealed that vimentin treatment induced increase in adipocyte size and increase in sizes of intracellular lipid droplets with increased intracellular triglyceride. Adipocytes treated with vimentin showed increased uptake of glucose and free fatty acid with increased expression of plasma membrane glucose transporter type 1 (GLUT1), GLUT4, and CD36. Vimentin treatment increased transcription of GLUT1 and hypoxia-inducible factor 1α (Hif-1α) but decreased GLUT4 transcription. Adipose triglyceride lipase (ATGL), peroxisome proliferator-activated receptor γ (PPARγ), sterol regulatory element-binding protein 1 (SREBP1), diacylglycerol O-acyltransferase 1 (DGAT1) and 2 were decreased by vimentin treatment. Markers for ER stress were increased and autophagy was impaired in vimentin-treated adipocytes. No change was observed in synthesis of ATP and lactate in the adipocytes treated with vimentin. CONCLUSION We concluded that extracellular vimentin regulates expression of molecules in energy metabolism and promotes adipocyte hypertrophy. Our results show that vimentin functions in the interplay between oxidative stress and metabolism, suggesting a mechanism by which adipocyte hypertrophy is induced in oxidative stress.
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Affiliation(s)
- Ji-Hae Park
- Department of Medicine, Graduate School, Ewha Womans University, Seoul, Korea
| | - Soyeon Kwon
- Department of Medicine, Graduate School, Ewha Womans University, Seoul, Korea
| | - Young Mi Park
- Department of Medicine, Graduate School, Ewha Womans University, Seoul, Korea
- Department of Molecular Medicine, Ewha Womans University College of Medicine, Seoul, Korea
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Kim H, Choi SY, Heo TY, Kim KR, Lee J, Yoo MY, Lee TG, Han JH. Value of glucose transport protein 1 expression in detecting lymph node metastasis in patients with colorectal cancer. World J Clin Cases 2024; 12:931-941. [PMID: 38414613 PMCID: PMC10895641 DOI: 10.12998/wjcc.v12.i5.931] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND There are limited data on the use of glucose transport protein 1 (GLUT-1) expression as a biomarker for predicting lymph node metastasis in patients with colorectal cancer. GLUT-1 and GLUT-3, hexokinase (HK)-II, and hypoxia-induced factor (HIF)-1 expressions may be useful biomarkers for detecting primary tumors and lymph node metastasis when combined with fluorodeoxyglucose (FDG) uptake on positron emission tomography/computed tomography (PET/CT). AIM To evaluate GLUT-1, GLUT-3, HK-II, and HIF-1 expressions as biomarkers for detecting primary tumors and lymph node metastasis with 18F-FDG-PET/CT. METHODS This retrospective study included 169 patients with colorectal cancer who underwent colectomy and preoperative 18F-FDG-PET/CT at Chungbuk National University Hospital between January 2009 and May 2012. Two tissue cores from the central and peripheral areas of the tumors were obtained and were examined by a dedicated pathologist, and the expressions of GLUT-1, GLUT-3, HK-II, and HIF-1 were determined using immunohistochemical staining. We analyzed the correlations among their expressions, various clinicopathological factors, and the maximum standardized uptake value (SUVmax) of PET/CT. RESULTS GLUT-1 was found at the center or periphery of the tumors in 109 (64.5%) of the 169 patients. GLUT-1 positivity was significantly correlated with the SUVmax of the primary tumor and lymph nodes, regardless of the biopsy site (tumor center, P < 0.001 and P = 0.012; tumor periphery, P = 0.030 and P = 0.010, respectively). GLUT-1 positivity and negativity were associated with higher and lower sensitivities of PET/CT, respectively, for the detection of lymph node metastasis, regardless of the biopsy site. GLUT3, HK-II, and HIF-1 expressions were not significantly correlated with the SUVmax of the primary tumor and lymph nodes. CONCLUSION GLUT-1 expression was significantly correlated with the SUVmax of 18F-FDG-PET/CT for primary tumors and lymph nodes. Clinicians should consider GLUT-1 expression in preoperative endoscopic biopsy in interpreting PET/CT findings.
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Affiliation(s)
- Hongsik Kim
- Department of Internal Medicine, Chungbuk National University Hospital, Cheongju 28644, South Korea
| | - Song-Yi Choi
- Department of Pathology, Chungnam National University College of Medicine, Daejeon 35015, South Korea
| | - Tae-Young Heo
- Information and Statistics, Chungbuk National University, Cheongju 28644, South Korea
| | - Kyeong-Rok Kim
- Information and Statistics, Chungbuk National University, Cheongju 28644, South Korea
| | - Jisun Lee
- Department of Radiology, College of Medicine, Chungbuk National University, Chungbuk National University Hospital, Cheongju-si 28644, South Korea
| | - Min Young Yoo
- Department of Nuclear Medicine, School of Medicine, Inha University, Incheon 22332, South Korea
| | - Taek-Gu Lee
- Department of Surgery, Chungbuk National University, College of Medicine, Cheongju-si 28644, South Korea
| | - Joung-Ho Han
- Department of Internal Medicen, Chungbuk National University, College of medicine, Cheongju-si 28644, South Korea
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Wang YY, Zhou YQ, Luo LJ, Wang CJ, Shen N, Li H, Wang JW. Ketogenic diet therapy in children with epilepsy caused by SLC2A1 mutations: a single-center single-arm retrospective study. World J Pediatr 2022:10.1007/s12519-022-00620-7. [PMID: 36303089 DOI: 10.1007/s12519-022-00620-7] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 09/05/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND This retrospective study assessed the efficacy and safety of ketogenic diet therapies in children with epilepsy caused by SLC2A1 genetic mutations and glucose transporter type 1 deficiency syndrome. METHODS Pediatric patients with epilepsy symptoms admitted to our medical center between January 2017 and October 2021 were included if they presented with an SLC2A1 genetic mutation on whole-exome sequencing. We analyzed the patients' convulsions and treatment with antiepileptic drugs. The patients were followed up at different time periods after ketogenic diet therapies. RESULTS Six patients with SLC2A1 mutations were included in this study. The patients had seizures of different types and frequencies, and they took antiepileptic drugs to relieve their symptoms. They were then treated with a ketogenic diet for at least four months. We analyzed epilepsy control rates at 1, 2, 3, 6, and 12 months after ketogenic diet treatment. All patients were seizure-free within a month of receiving the diet therapy. All patients were followed up for six months, three were followed up for 12 months after the treatment, and there was no recurrence of epilepsy during this period. After antiepileptic drug withdrawal, none of the patients experienced seizure relapse when receiving ketogenic diet treatment alone. No severe adverse events occurred during the therapy. CONCLUSIONS Ketogenic diet therapy is very effective and safe for the treatment of epilepsy caused by SLC2A1 mutations. Therefore, patients with glucose transporter type 1 deficiency syndrome caused by SLC2A1 mutations should begin ketogenic diet treatment as soon as possible.
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Affiliation(s)
- Ying-Yan Wang
- Department of Neurology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yun-Qing Zhou
- Department of Neurology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li-Juan Luo
- Department of Infectious Diseases, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Cui-Jin Wang
- Department of Neurology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Shen
- Department of Infectious Diseases, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Li
- Department of Neurology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
- Clinical Research Ward, Clinical Research Center, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Ji-Wen Wang
- Department of Neurology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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4
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Yu LF, Zhang YQ, Duan J, Ni Y, Gong XY, Lu ZY, Liao JX, Lu XP, Shi ZN, Lei MF, Zhong JM, Zha J, Zhou SZ. [Clinical characteristics and ketogenic diet therapy of glucose transporter type 1 deficiency syndrome in children: a multicenter clinical study]. Zhonghua Er Ke Za Zhi 2020; 58:881-886. [PMID: 33120458 DOI: 10.3760/cma.j.cn112140-20200822-00819] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical characteristics of pediatric glucose transporter type 1 deficiency syndrome (GLUT1 DS), evaluate the efficacy and safety of ketogenic diet therapy (KDT). Methods: Clinical data of 19 children with GLUT1 DS admitted to Children's Hospital of Fudan University, Tianjin Children's Hospital, Shenzhen Children's Hospital, Children's Hospital of Nanjing Medical University and Jiangxi Provincial Children's Hospital between 2015 and 2019 were collected retrospectively. The first onset symptom, main clinical manifestations, cerebrospinal fluid features and genetic testing results of patients were summarized, the efficacy and safety of ketogenic diet treatment were analyzed. Results: Among the 19 cases, 13 were males and 6 females. The age of onset was 11.0 (1.5-45.0) months,the age of diagnosis was 54.0 (2.8-132.0) months. Epilepsy was the first onset symptom of 13 cases. Different forms of tonic-clonic seizures were the most common types of epilepsy (7 cases with generalized tonic-clonic seizures, 5 cases with focal tonic or clonic seizures, 4 cases with generalized tonic seizures). Antiepileptic drugs were effective in 4 cases. Paroxysmal motor dysfunction was present in 12 cases and ataxia was the most common one. All patients had different degrees of psychomotor retardation. Among 17 patients received cerebrospinal fluid examination, cerebrospinal fluid (CSF) glucose level was lower than 2.2 mmol/L and CSF glucose/glycemic index was<0.45 in 16 cases, only 1 case presented normal CSF glucose level (2.3 mmol/L) and normal CSF glucose/glycemic index(0.47). SLC2A1 gene mutations were found in 16 patients, missense, frameshift and nonsense mutations were the common types with 5 cases, 5 cases and 3 cases respectively. All 19 patients were treated with ketogenic diet, which was effective in 18 cases in seizure control, 11 cases in dyskinesia improvement and 18 cases in cognitive function improvement. No serious side effects were reported in any stage of KDT. Conclusions: The diagnosis of GLUT1 DS is often late. It is necessary to improve the early recognition of the disease and perform CSF glucose detection and genetic testing as early as possible. The KDT is an effective and safe treatment for GLUT1 DS, but a small number of patients have not response to diet therapy.
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Affiliation(s)
- L F Yu
- Department of Neurology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Y Q Zhang
- Department of Neurology, Tianjin Children's Hospital, Tianjin 300400, China
| | - J Duan
- Department of Neurology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y Ni
- Department of Neurology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X Y Gong
- Department of Nutrition, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Z Y Lu
- Department of Nutrition, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai 201102, China
| | - J X Liao
- Department of Neurology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - X P Lu
- Department of Neurology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Z N Shi
- Department of Neurology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - M F Lei
- Department of Neurology, Tianjin Children's Hospital, Tianjin 300400, China
| | - J M Zhong
- Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - J Zha
- Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - S Z Zhou
- Department of Neurology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai 201102, China
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Hendrix RD, Ou Y, Davis JE, Odle AK, Groves TR, Allen AR, Childs GV, Barger SW. Alzheimer amyloid-β- peptide disrupts membrane localization of glucose transporter 1 in astrocytes: implications for glucose levels in brain and blood. Neurobiol Aging 2020; 97:73-88. [PMID: 33161213 PMCID: PMC7736209 DOI: 10.1016/j.neurobiolaging.2020.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 03/26/2020] [Revised: 08/25/2020] [Accepted: 10/02/2020] [Indexed: 12/12/2022]
Abstract
Alzheimer’s disease (AD) is associated with disturbances in blood glucose regulation, and type-2 diabetes elevates the risk for dementia. A role for amyloid-β peptide (Aβ) in linking these age-related conditions has been proposed, tested primarily in transgenic mouse lines that overexpress mutated amyloid precursor protein (APP). Because APP has its own impacts on glucose regulation, we examined the BRI-Aβ42 line (“Aβ42-tg”), which produces extracellular Aβ1–42 in the CNS without elevation of APP. We also looked for interactions with diet-induced obesity (DIO) resulting from a high-fat, high-sucrose (“western”) diet. Aβ42-tg mice were impaired in both spatial memory and glucose tolerance. Although DIO induced insulin resistance, Aβ1–42 accumulation did not, and the impacts of DIO and Aβ on glucose tolerance were merely additive. Aβ42-tg mice exhibited no significant differences from wild-type in insulin production, body weight, lipidemia, appetite, physical activity, respiratory quotient, an-/orexigenic factors, or inflammatory factors. These negative findings suggested that the phenotype in these mice arose from perturbation of glucose excursion in an insulin-independent tissue. To wit, cerebral cortex of Aβ42-tg mice had reduced glucose utilization, similar to human patients with AD. This was associated with insufficient trafficking of glucose transporter 1 to the plasma membrane in parenchymal brain cells, a finding also documented in human AD tissue. Together, the lower cerebral metabolic rate of glucose and diminished function of parenchymal glucose transporter 1 indicate that aberrant regulation of blood glucose in AD likely reflects a central phenomenon, resulting from the effects of Aβ on cerebral parenchyma, rather than a generalized disruption of hypothalamic or peripheral endocrinology. The involvement of a specific glucose transporter in this deficit provides a new target for the design of AD therapies.
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Affiliation(s)
- Rachel D Hendrix
- Department of Neurobiology & Developmental Sciences, Little Rock, AR, USA
| | - Yang Ou
- Department of Geriatrics, Little Rock, AR, USA
| | - Jakeira E Davis
- Graduate Program in Interdisciplinary Biomedical Sciences, Little Rock, AR, USA
| | - Angela K Odle
- Department of Neurobiology & Developmental Sciences, Little Rock, AR, USA
| | - Thomas R Groves
- Department of Neurobiology & Developmental Sciences, Little Rock, AR, USA
| | - Antiño R Allen
- Department of Neurobiology & Developmental Sciences, Little Rock, AR, USA; Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Gwen V Childs
- Department of Neurobiology & Developmental Sciences, Little Rock, AR, USA
| | - Steven W Barger
- Department of Neurobiology & Developmental Sciences, Little Rock, AR, USA; Department of Geriatrics, Little Rock, AR, USA; Geriatric Research, Education & Clinical Center, Central Arkansas Veterans Healthcare System, Little Rock, AR, USA.
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Zhang L, Wei JG, Du YH, Gao XZ, Han J, Du Q, Xu Y, Li WC, Li SL. [MicroRNA-140-5p suppresses cell proliferation and invasion in esophageal squamous cell carcinoma by targeting Glut1]. Zhonghua Bing Li Xue Za Zhi 2020; 49:897-903. [PMID: 32892554 DOI: 10.3760/cma.j.cn112151-20200213-00088] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of microRNA-140-5p (miR-140-5p) in esophageal squamous cell carcinoma (ESCC) and its role in cell proliferation and invasion of ESCC. Methods: Real-time quantitative PCR (qPCR) was used to detect the expression levels of miR-140-5p in ESCC tissues and cells. Negative control and miR-140-5p mimic were transfected into Eca109 and KYSE70 cells. CCK-8 kit and Transwell assay were employed to examine the changes of cell proliferation and invasion ability after transfection, respectively. The dual-luciferase reporter assay was used to assess the interaction of miR-140-5p with Glut1. Western blot was utilized to detect the Glut1 protein expression after transfection. Results: Analysis of the related GEO datasets revealed that the expression of miR-140-5p in ESCC tissues was significantly lower than that in normal tissues (P<0.01). The qPCR testing demonstrated that the expression of miR-140-5p in ESCC tissues and cells was markedly lower than that in normal tissues and normal esophageal epithelial cell Het-1A (P<0.01). The miR-140-5p expression was closely associated with tumor differentiation, TNM staging and lymph node metastasis in ESCC patients. The survival rate of ESCC patients with high miR-140-5p level was higher than those with low miR-140-5p level (P<0.05). Besides, addition of miR-140-5p mimic significantly upregulated the expression of miR-140-5p in Eca109 and KYSE70 cells, and suppressed cell proliferation and invasion in Eca109 and KYSE70 cells. The dual-luciferase reporter assay showed that Glut1 was a direct target of miR-140-5p in ESCC cells, and its expression was upregulated in ESCC tissues. Glut1 expression was inversely associated with miR-140-5p expression in ESCC tissues. MiR-140-5p mimic dramatically inhibited the expression of Glut1 in Eca109 and KYSE70 cells. Conclusions: MiR-140-5p plays an essential role in ESCC development and progression. Targeting at miR-140-5p/Glut1 may be a novel therapeutic strategy for ESCC patients.
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Affiliation(s)
- L Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J G Wei
- Department of Pathology, Shaoxing People's Hospital of Zhejiang Province, Shaoxing 312000, China
| | - Y H Du
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Z Gao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J Han
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Q Du
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Xu
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S L Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Gharaboghaz MNZ, Farahpour MR, Saghaie S. Topical co-administration of Teucrium polium hydroethanolic extract and Aloe vera gel triggered wound healing by accelerating cell proliferation in diabetic mouse model. Biomed Pharmacother 2020; 127:110189. [PMID: 32388242 DOI: 10.1016/j.biopha.2020.110189] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/15/2020] [Accepted: 04/19/2020] [Indexed: 11/18/2022] Open
Abstract
Diabetic wounds are major issues in patients with diabetes. Medicinal plants of Teucrium polium and Aloe vera have antioxidant and anti-inflammatory properties that may be profitable for diabetic patients. This study was conducted to evaluate the effect of co-administration of ointments prepared from Teucrium polium hydroethanolic extract (TPEO) and Aloe vera gel (AVGO) on excisional wound healing in a diabetic mouse model. Following the induction of diabetes and circular excisional wound (7 mm), the mice were divided into six groups, namely (Ⅰ) control mice treated with mupirocin (as a standard drug), (Ⅱ and Ⅲ) the mice treated with 5 and 10 % TPEO, (Ⅳ and Ⅴ) the mice treated with 5 and 10 % AVGO, and (Ⅵ) the mice treated with a combination of 5% TPEO and 5% AVGO (TPEO+AVGO). To investigate the wound area, we further evaluated the wound area ratio, histological analysis and the serum levels of tissue antioxidant capacity (TAC) and malondialdehyde (MDA), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β), immunohistochemistry staining for vascular endothelial growth factor (VEGF), insulin-like growth factor (IGF-1), glucose transporter-1(GLUT-1) and collagen type 1 and mRNA expression levels for VEGF, IGF-1, GLUT-1 and fibroblast growth factor-2 (FGF-2). The results showed that administration of the ointments, especially in combination form, shortened the inflammatory phase and reduced the levels of tissue MDA, TNF-α and IL-1β compared to mupirocin group (P < 0.05). Moreover, fibroblasts proliferation, collagen deposition, VEGF, IGF-1, GLUT-1-positive cells and level of TAC, and expressions of VEGF, IGF-1, GLUT-1 and FGF-2 were significantly (P < 0.05) increased in TPEO and AVGO, and especially in the mice treated with the mixed form. Therefore, topical co-administration of TPEO + AVGO accelerated open diabetic wound healing through shortening the inflammatory phase and increasing cell proliferation and collagen deposition.
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Affiliation(s)
| | - Mohammad Reza Farahpour
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, 57159-44867, Iran.
| | - Shahram Saghaie
- Department of Pharmacology, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
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Lee JS, Hong JM, Yoon BS, Son KS, Lee KE, Im DS, Park BN, An YS, Hwang DH, Park CB, Kim BG, Joe EH. Expression of Cellular Receptors in the Ischemic Hemisphere of Mice with Increased Glucose Uptake. Exp Neurobiol 2020; 29:70-79. [PMID: 32122109 PMCID: PMC7075656 DOI: 10.5607/en.2020.29.1.70] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/30/2019] [Revised: 01/16/2020] [Accepted: 02/06/2020] [Indexed: 11/19/2022] Open
Abstract
Many previous studies have shown reduced glucose uptake in the ischemic brain. In contrast, in a permanent unilateral common carotid artery occlusion (UCCAO) mouse model, our pilot experiments using 18F-fluorodeoxyglucose positron emission tomography (FDG PET) revealed that a subset of mice exhibited conspicuously high uptake of glucose in the ipsilateral hemisphere at 1 week post-occlusion (asymmetric group), whereas other mice showed symmetric uptake in both hemispheres (symmetric group). Thus, we aimed to understand the discrepancy between the two groups. Cerebral blood flow and histological/metabolic changes were analyzed using laser Doppler flowmetry and immunohistochemistry/Western blotting, respectively. Contrary to the increased glucose uptake observed in the ischemic cerebral hemisphere on FDG PET (p<0.001), cerebral blood flow tended to be lower in the asymmetric group than in the symmetric group (right to left ratio [%], 36.4±21.8 vs. 58.0±24.8, p=0.059). Neuronal death was observed only in the ischemic hemisphere of the asymmetric group. In contrast, astrocytes were more activated in the asymmetric group than in the symmetric group (p<0.05). Glucose transporter-1, and monocarboxylate transporter-1 were also upregulated in the asymmetric group, compared with the symmetric group (p<0.05, respectively). These results suggest that the increased FDG uptake was associated with relatively severe ischemia, and glucose transporter-1 upregulation and astrocyte activation. Glucose metabolism may thus be a compensatory mechanism in the moderately severe ischemic brain.
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Affiliation(s)
- Jin Soo Lee
- Department of Neurology, Ajou University School of Medicine, Korea.,Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon 16499, Korea
| | - Ji Man Hong
- Department of Neurology, Ajou University School of Medicine, Korea.,Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon 16499, Korea
| | - Bok Seon Yoon
- Department of Neurology, Ajou University School of Medicine, Korea.,Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon 16499, Korea
| | - Keoung Sun Son
- Department of Neurology, Ajou University School of Medicine, Korea.,Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon 16499, Korea
| | - Kyung Eon Lee
- School of Pharmacy, Kyung Hee University, Seoul 02447, Korea
| | - Doo Soon Im
- Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Bok-Nam Park
- Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Korea
| | - Young-Sil An
- Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Korea
| | - Dong Hoon Hwang
- Department of Brain Science, Ajou University School of Medicine, Korea
| | - Chan Bae Park
- Department of Biology, Ajou University School of Medicine, Korea
| | - Byung Gon Kim
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon 16499, Korea.,Department of Brain Science, Ajou University School of Medicine, Korea
| | - Eun-Hye Joe
- Neuroscience Graduate Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon 16499, Korea.,Department of Brain Science, Ajou University School of Medicine, Korea.,Department of Pharmacology, Ajou University School of Medicine, Suwon 16499, Korea
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9
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Luo X, Huang J, Yu J, Tang C. Effect of Taichong (LR 3) acupuncture in spontaneously hypertensive rats. J TRADIT CHIN MED 2019; 39:74-80. [PMID: 32186026] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To evaluate the effects of Taichong (LR 3) acupuncture points (acupoints) on the expression of glucose transporter protein 1 (GLUT1) in the hypothalamus of spontaneously hypertensive rats (SHRs) as measured by combined positron emission tomography and computed tomography (PET-CT). METHODS Spontaneously hypertensive rats (SHR) were divided into model, Taichong (LR 3) acupuncture, and sham groups. Additionally, Tokyo Wistar rats were used as the control group. Changes in blood pressure were recorded in different groups of rats before and after the corresponding treatment. Hematoxylin and eosin (HE) staining was used to study basic morphological changes, and immunohistochemistry was used to determine GLUT1 expression in the hypothalamus. Further, PET-CT was utilized to elucidate the antihypertensive mechanism after acupuncture at the Taichong (LR 3) acupoints. RESULTS PET-CT indicated activation of the hypothalamus. Measurement of blood pressure showed that acupuncture at the Taichong (LR 3) acupoints lowered blood pressure. HE staining did not show any significant pathological changes, although differences in cell number were observed. Immunohistochemical analysis indicated a GLUT1 downregulation in the SHRs of the Taichong (LR 3) acupuncture group after the treatment. CONCLUSION Acupuncture at Taichong (LR 3) acupoints lowered blood pressure in SHRs, with possible mechanisms being changes in cell number and GLUT1 expression in the hypothalamus.
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Affiliation(s)
- Xiaozhou Luo
- Department of Rehabilitation, Chengdu Second People's Hospital, Chengdu 610000, China
| | - Jianting Huang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Shenzhen University School of Medicine, Shenzhen Second People's Hospital, Futian District, Shenzhen 518060, China
| | - Juan Yu
- College of Acupuncture and Tuina, Hunan University of Traditional Chinese Medicine, Changsha 410000, China
| | - Chunzhi Tang
- Clinical Medical College of Acupuncture, Moxibustion and Rehabilitation, Guangzhou University of Traditional Chinese Medicine, Guangzhou 510000, China
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Yang TY, Hao LS, Guo DZ. [Expression of hypoxia-inducible factor 1α, glucose transporter 1 and lactate dehydrogenase 5 in colorectal cancer and clinicopathologic significance]. Zhonghua Bing Li Xue Za Zhi 2017; 46:93-7. [PMID: 28173667 DOI: 10.3760/cma.j.issn.0529-5807.2017.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression and clinicopathological significance of hypoxia-inducible factor 1 alpha (HIF-1α), glucose transporter 1(GLUT-1) and lactate dehydrogenase(LDH)-5 in colorectal cancer. Methods: The expression levels of HIF-1α, GLUT-1 and LDH-5 were detected by immunohistochemical staining in 142 specimens of human carcinoma in comparison with adjacent normal tissues. Results: The expression levels of HIF-1α(78.2%, 111/142), GLUT-1(75.4%, 107/142) and LDH-5(68.3%, 97/142) were higher in tumor tissues than in adjacent normal tissues(14.8%, 21/142; 11.3%, 16/142; 7.0%, 10/142; P<0.01 for all three proteins), and such over-expression was significantly associated with lymphovascular invasion, tumor grade and pathological stages(all P<0.01). Additional studies showed that HIF-1α, GLUT-1 and LDH-5 were positively associated with each other(r<0.3, P<0.05 for all three proteins). Conclusion: The data suggest that HIF-1α, GLUT-1 and LDH-5 expression may serve as prognostic indicators for colorectal cancer patients.
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Heidarzadeh Z, Samimi M, Seifati SM, Ashkezari MD, Ahmadi S, Mahmoodi S, Aghadavod E, Jamilian M, Asemi Z. The Effect of Zinc Supplementation on Expressed Levels of Peroxisome Proliferator-Activated Receptor Gamma and Glucose Transporter Type 1 Genes in Newborns of Women with Gestational Diabetes Mellitus. Biol Trace Elem Res 2017; 175:271-277. [PMID: 27334434 DOI: 10.1007/s12011-016-0788-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 06/15/2016] [Indexed: 11/26/2022]
Abstract
The current study was designed to determine the beneficial effects of zinc supplementation on expressed levels of peroxisome proliferator-activated receptor gamma (PPAR-γ) and glucose transporter type 1 (GLUT1) genes in newborns of women with gestational diabetes mellitus (GDM). This randomized, double-blind, placebo-controlled clinical trial was performed among 40 women with GDM. Patients were randomly allocated to intake either 233 mg zinc gluconate (containing 30 mg zinc) (n = 20) or a placebo (n = 20) for 6 weeks. PPAR-γ and GLUT1 mRNA levels were quantified in umbilical cord blood of newborns of women with GDM. After 6 weeks of intervention, the change in serum zinc levels was greater in women consuming zinc than in the placebo group (+11.1 ± 13.4 vs. -4.8 ± 17.3 mg/dL, P = 0.002). Quantitative results of RT-PCR demonstrated that compared with the placebo, zinc supplementation resulted in a significant increase of expressed levels of PPAR-γ mRNA (P < 0.001) and GLUT1 mRNA (P < 0.001) in umbilical cord blood of newborns of women with GDM. Taken together, the current study demonstrated that zinc supplementation for 6 weeks among GDM women increased the mRNA levels of PPAR-γ and GLUT1 in their newborns compared with the placebo group.
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Affiliation(s)
- Zahra Heidarzadeh
- Department of Biology, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran
| | - Mansooreh Samimi
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | - Seyed Morteza Seifati
- Department of Biology, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran
| | | | - Shahnaz Ahmadi
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Gynecology and Obstetrics, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Samaneh Mahmoodi
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Mehri Jamilian
- Department of Gynecology and Obstetrics, Endocrinology and Metabolism Research Center, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran.
- Present address: Department of Nutrition, Kashan University of Medical Sciences, Kashan, Iran.
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Nogami Y, Fujii-Nishimura Y, Banno K, Suzuki A, Susumu N, Hibi T, Murakami K, Yamada T, Sugiyama H, Morishima Y, Aoki D. Anisakiasis mimics cancer recurrence: two cases of extragastrointestinal anisakiasis suspected to be recurrence of gynecological cancer on PET-CT and molecular biological investigation. BMC Med Imaging 2016; 16:31. [PMID: 27112922 PMCID: PMC4845301 DOI: 10.1186/s12880-016-0134-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 04/21/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We report two cases of anisakiasis lesions that were initially suspected to be recurrence of gynecological cancer by positron emission tomography-computed tomography (PET-CT). Both cases were extragastrointestinal anisakiasis that is very rare. CASE PRESENTATION The first case was a patient with endometrial cancer. At 19 months after surgery, a new low density area of 2 cm in diameter in liver segment 4 was found on follow-up CT. In PET-CT, the lesion had abnormal (18)fluoro-deoxyglucose (FDG) uptake with elevation in the delayed phase, with no other site showing FDG uptake. Partial liver resection was performed. A pathological examination revealed no evidence of malignancy, but showed necrotic granuloma with severe eosinophil infiltration and an irregular material with a lumen structure in the center. Parasitosis was suspected and consultation with the National Institute of Infectious Diseases (NIID) showed the larvae to be Anisakis simplex sensu stricto by genetic examination. The second case was a patient with low-grade endometrial stromal sarcoma (LG-ESS). At 8 months after surgery, swelling of the mediastinal lymph nodes was detected on CT and peripheral T-cell lymphoma was diagnosed by biopsy. A new peritoneal lesion with abnormal FDG uptake was detected on pre-treatment PET-CT and this lesion was increased in size on post-treatment PET-CT. Tumorectomy was performed based on suspected dissemination of LG-ESS recurrence. The findings in a pathological examination were similar to the first case and we again consulted the NIID. The larvae was identified as Anisakis pegreffi, which is a rare pathogen in humans. Having experienced these rare cases, we investigated the mechanisms of FDG uptake in parasitosis lesions by immunohistochemical staining using antibodies to glucose transporter type 1 (GLUT-1) and hexokinase type 2 (HK-2). While infiltrated eosinophils were negative, macrophages demonstrated positive for both antibodies. Therefore, mechanisms behind FDG uptake may involve macrophages, which is common among various granulomas. This is the first report to investigate parasitosis in such a way. CONCLUSION These cases suggest that anisakiasis is a potential differential diagnosis for a lesion with FDG uptake in PET-CT, and that it is difficult to distinguish this disease from a recurrent tumor using PET-CT alone.
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Affiliation(s)
- Yuya Nogami
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoko Fujii-Nishimura
- Department of Pathology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kouji Banno
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Atsushi Suzuki
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Nobuyuki Susumu
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Taizo Hibi
- Department of Surgery, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Koji Murakami
- Department of Radiology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Taketo Yamada
- Division of Diagnostic Pathology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Pathology, Saitama Medical University, Moroyama-machi 38, Iruma-gun, Saitama, 350-0495, Japan
| | - Hiromu Sugiyama
- Department of Parasitology, National Institute of Infectious Diseases, Toyama 1-23-1 Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Yasuyuki Morishima
- Department of Parasitology, National Institute of Infectious Diseases, Toyama 1-23-1 Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Daisuke Aoki
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinanomachi 35 Shinjuku-ku, Tokyo, 160-8582, Japan
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