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Liu B, Liu J, Mei X, Zhang ZQ, Fang J, Zhou LL, Zheng JL, Lin HY, Zhu XL, Li DL. Pretreatment Non-Invasive Biomarkers as Predictors to Estimate Portal Vein Tumor Thrombosis (PVTT) Risk and Long-Term Survival in HBV-Related Hepatocellular Carcinoma Patients Without PVTT. J Hepatocell Carcinoma 2023; 10:2367-2382. [PMID: 38164511 PMCID: PMC10758161 DOI: 10.2147/jhc.s442487] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024] Open
Abstract
Background PVTT is a hallmark of advanced hepatocellular carcinoma (HCC). We aim to explore the influence of non-invasive biomarkers on the occurrence of PVTT and develop and validate models for predicting prognosis in HBV-related HCC patients without PVTT. Methods A total of 1026 HBV-related HCC patients without PVTT were enrolled, with 515 in the training cohort, 216 in the internal validation cohort, and 295 in the external validation cohort. We conducted Cox regression analyses to discern the independent risk factors associated with PVTT events, PFS, and OS, then constructed and validated predictive models. The predictive and discriminatory capabilities of models were assessed using the calibration, time-dependent ROC, and DCA curves. Results In our study, 136 patients (13.3%) experienced PVTT events during the follow-up period. The Cox regression analysis unveiled that male gender, AAPR ≤0.49, APRI >0.48, extrahepatic metastasis, and multiple tumors were independent risk factors for PVTT. In the training cohort, non-invasive biomarkers (AAR and APRI), AFP, ascites, and tumor-related characteristics (extrahepatic metastasis, tumor diameter, tumor number, and PVTT event) were independent risk factors for both OS and PFS, whereas age and ALBI grade independently correlated with OS. The C-indexes of OS and PFS nomogram models were 0.795 and 0.733 in the training cohort, 0.765 and 0.716 in the internal validation cohort, and 0.780 and 0.722 in the external validation cohort, respectively. Our models demonstrated strong predictive and discriminative abilities in all cohorts and yielded a greater net benefit compared to three traditional staging systems. Conclusion Non-invasive biomarkers are expected to be reliable predictors for assessing PVTT risk and predicting prognosis among HBV-related HCC patients without PVTT.
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Affiliation(s)
- Bang Liu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, People’s Republic of China
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
| | - Jia Liu
- Department of Hepatobiliary Surgery, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100039, People’s Republic of China
| | - Xuan Mei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, People’s Republic of China
| | - Zhi-Qiang Zhang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, People’s Republic of China
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
| | - Jian Fang
- Department of Hepatobiliary Medicine, The Third Affiliated People’s Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, 350108, People’s Republic of China
| | - Li-Li Zhou
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
| | - Jiao-Long Zheng
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
| | - Hai-Yan Lin
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
| | - Xiu-Ling Zhu
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
| | - Dong-Liang Li
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, People’s Republic of China
- Department of Hepatobiliary Disease, 900TH Hospital of Joint Logistics Support Force, Fuzhou, 350025, People’s Republic of China
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McClatchy J, Strogantsev R, Wolfe E, Lin HY, Mohammadhosseini M, Davis BA, Eden C, Goldman D, Fleming WH, Conley P, Wu G, Cimmino L, Mohammed H, Agarwal A. Clonal hematopoiesis related TET2 loss-of-function impedes IL1β-mediated epigenetic reprogramming in hematopoietic stem and progenitor cells. Nat Commun 2023; 14:8102. [PMID: 38062031 PMCID: PMC10703894 DOI: 10.1038/s41467-023-43697-y] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Clonal hematopoiesis (CH) is defined as a single hematopoietic stem/progenitor cell (HSPC) gaining selective advantage over a broader range of HSPCs. When linked to somatic mutations in myeloid malignancy-associated genes, such as TET2-mediated clonal hematopoiesis of indeterminate potential or CHIP, it represents increased risk for hematological malignancies and cardiovascular disease. IL1β is elevated in patients with CHIP, however, its effect is not well understood. Here we show that IL1β promotes expansion of pro-inflammatory monocytes/macrophages, coinciding with a failure in the demethylation of lymphoid and erythroid lineage associated enhancers and transcription factor binding sites, in a mouse model of CHIP with hematopoietic-cell-specific deletion of Tet2. DNA-methylation is significantly lost in wild type HSPCs upon IL1β administration, which is resisted by Tet2-deficient HSPCs, and thus IL1β enhances the self-renewing ability of Tet2-deficient HSPCs by upregulating genes associated with self-renewal and by resisting demethylation of transcription factor binding sites related to terminal differentiation. Using aged mouse models and human progenitors, we demonstrate that targeting IL1 signaling could represent an early intervention strategy in preleukemic disorders. In summary, our results show that Tet2 is an important mediator of an IL1β-promoted epigenetic program to maintain the fine balance between self-renewal and lineage differentiation during hematopoiesis.
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Affiliation(s)
- J McClatchy
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - R Strogantsev
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - E Wolfe
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - H Y Lin
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - M Mohammadhosseini
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - B A Davis
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - C Eden
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - D Goldman
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA
- Division of Pediatric Hematology and Oncology, Oregon Health & Science University, Portland, OR, USA
| | - W H Fleming
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA
- Division of Pediatric Hematology and Oncology, Oregon Health & Science University, Portland, OR, USA
| | - P Conley
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - G Wu
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - L Cimmino
- University of Miami, Department of Biochemistry and Molecular Biology, Sylvester Comprehensive Cancer Center, Miami, USA
| | - H Mohammed
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - A Agarwal
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA.
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA.
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA.
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Qin MC, Li JJ, Zheng YT, Li YJ, Zhang YX, Ou RX, He WY, Zhao JM, Liu ST, Liu MH, Lin HY, Gao L. Naringin ameliorates liver fibrosis in zebrafish by modulating IDO1-mediated lipid metabolism and inflammatory infiltration. Food Funct 2023; 14:10347-10361. [PMID: 37930368 DOI: 10.1039/d3fo03858k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Liver fibrosis (LF) is an important reparative process in response to acute or chronic hepatic injury, which has the potential to advance towards cirrhosis and hepatocellular carcinoma. Dietary naringin consumption contributes to protection against LF in animal studies, while the exact protective mechanism of naringin remains unclear. This study aimed to investigate the molecular mechanisms behind the potential protective effect of naringin against TAA-induced LF in zebrafish. In this study, we utilized zebrafish to create the LF model and investigate the therapeutic mechanism of naringin. Firstly, we evaluated the changes in hepatic fibrosis and lipid accumulation in the liver following naringin treatment with oil red O, Nile red, and Sirius red and immunohistochemistry. In addition, we employed an ROS probe to directly measure oxidative stress and monitor inflammatory cell migration in a zebrafish transgenic line. Morpholino was used in the knockdown of IDO1 in order to verify its vital role in LF. Our findings demonstrated that naringin exhibited anti-inflammatory and anti-fibrotic action in conjunction with a reversal in lipid accumulation, oxidative stress and suppression of macrophage infiltration and activation of hepatic stellate cells. Furthermore, the results showed that the antifibrotic effect of naringin was removed upon IDO1 knockdown, proving that naringin exerts a protective effect by regulating IDO1. Naringin demonstrates remarkable protective effects against LF, effectively counteracting inflammation and hepatic steatosis in zebrafish liver. These findings suggest that naringin may function as an effective IDO1 inhibitor, holding the potential for clinical translation as a therapeutic agent for the treatment of LF.
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Affiliation(s)
- Meng-Chen Qin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jun-Jie Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yan-Tao Zheng
- Emergency Department, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
| | - Yun-Jia Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yu-Xue Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Rou-Xuan Ou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Wei-Yi He
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jia-Min Zhao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Su-Tong Liu
- The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
| | - Ming-Hao Liu
- The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
| | - Hai-Yan Lin
- Shenzhen Hospital, University of Chinese Academy of Sciences, Shenzhen, China.
| | - Lei Gao
- Emergency Department, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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4
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Lin HY, Feng MG, Ying SH. Phosphorylation modification orchestrates the functionalities of peroxin 14 in filamentous entomopathogenic fungus Beauveria bassiana. Fungal Biol 2023; 127:1284-1290. [PMID: 37821150 DOI: 10.1016/j.funbio.2023.08.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/01/2023] [Accepted: 08/07/2023] [Indexed: 10/13/2023]
Abstract
Peroxin 14 (Pex14) is a component of the receptor-docking complex at peroxisomal membrane. However, its post translation modification remains largely unknown in filamentous fungi. In this study, we characterized two phosphorylation sites (S54 and T262) in Beauveria bassiana Pex14 (BbPex14). Two phosphorylation sites are dispensable for the BbPex14 role as a peroxin. The BbPex14 roles in conidiation and blastospore formation are dependent on two phosphorylation sites, and blastospore formation is more dependent on phosphorylation modification of two sites. Two phosphorylation sites differentially contribute to pexophagy during conidiation and under stress, in which the site T262 is indispensable. Evidently, the phosphorylation modification expands the functionalities of BbPex14. This study improves our understandings of the complex regulatory mechanisms underlying organellar biology in the filamentous fungi.
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Affiliation(s)
- Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
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5
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Lin J, Su MF, Zheng JL, Gu L, Wu HC, Wu X, Lin HY, Wu ZX, Li DL. Fas/FasL and Complement Activation are Associated with Chronic Active Epstein-Barr Virus Hepatitis. J Clin Transl Hepatol 2023; 11:540-549. [PMID: 36969885 PMCID: PMC10037519 DOI: 10.14218/jcth.2022.00227] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/12/2022] [Accepted: 07/26/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND AND AIMS Chronic active Epstein-Barr virus hepatitis (CAEBVH) is a rare and highly lethal disease characterized by hepatitis and hepatomegaly. This study aimed to investigate the clinicopathological features and pathogenic mechanisms of CAEBVH. METHODS Ten patients with confirmed Epstein-Barr virus hepatitis infection were enrolled. The clinicopathological characteristics of these patients were summarized and analyzed. Flow cytometry was utilized to detect peripheral blood immune cell phenotypes and whole exome sequencing was used to explore pathogenic genetic mechanisms. Lastly, immunohistochemical staining was employed to verify pathogenic mechanisms. RESULTS Clinical features observed in all Epstein-Barr virus hepatitis patients included fever (7/10), splenomegaly (10/10), hepatomegaly (9/10), abnormal liver function (8/10), and CD8+ T cell lymphopenia (6/7). Hematoxylin and eosin staining revealed lymphocytic infiltration in the liver. Positive Epstein-Barr virus-encoded small RNA in-situ hybridization (EBER-ISH) of lymphocytes of liver tissues was noted. Whole exome sequencing indicated that cytotoxic T lymphocytes and the complement system were involved. The expression of CD8, Fas, FasL, and Caspase-8 expression as well as apoptotic markers was enhanced in the Epstein-Barr virus hepatitis group relative to the controls (p<0.05). Lastly, Complement 1q and complement 3d expression, were higher in CAEBVH patients relative to controls (p<0.05). CONCLUSIONS CAEBVH patients developed fever, hepatosplenomegaly, and lymphadenopathy. Histopathological changes were a diffuse lymphocytic sinusoidal infiltrate with EBER-ISH positivity. Fas/FasL and complement activation were involved in CAEBVH patients.
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Affiliation(s)
- Jing Lin
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Miao-Fang Su
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Jiao-Long Zheng
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Lei Gu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hai-Cong Wu
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Xia Wu
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Hai-Yan Lin
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Zhi-Xian Wu
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
| | - Dong-Liang Li
- Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian, China
- Correspondence to: Dong-Liang Li, Department of Hepatobiliary Medicine, Fuzong Clinical Medical College of Fujian Medical University, 900TH Hospital of the Joint Logistic Support Force, PLA, Fuzhou, Fujian 350025, China. ORCID: https://orcid.org/0000-0001-5536-8468. Tel/Fax: +86-591-2285-9128, E-mail:
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Lei JH, Lin HY, Ding JL, Feng MG, Ying SH. Functional characterization of two homologs of yeast acetyl-coenzyme A synthetase in the entomopathogenic fungus Beauveria bassiana. Arch Microbiol 2022; 204:653. [PMID: 36175799 DOI: 10.1007/s00203-022-03269-y] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/22/2022] [Indexed: 11/25/2022]
Abstract
Acetyl-coenzyme A (CoA) synthetase (Acs) links cellular metabolism and physiology by catalyzing acetate and CoA into acetyl-CoA. However, the biological roles of Acs are not well studied in entomopathogenic fungi. In this study, two Acs proteins (BbAcs1 and BbAcs2) was functionally characterized in the filamentous insect pathogenic fungus Beauveria bassiana. BbAcs1 and BbAcs2 localize in cytoplasm and peroxisome, respectively. BbAcs1 contributes to vegetative growth on fatty acids as carbon source, and BbAcs2 did not. Both genes did not contribute to fungal response to stresses. The BbAcs1 loss conferred a slight influence on conidiation, and did not result in the defects in blastospore formation. On the contrary, BbAcs2 significantly contributes to lipid metabolism in germlings, blastospore formation, and virulence. The results indicated that Acs2 played a more predominant role than Acs1 in B. bassiana, which links the acetyl-CoA metabolism with the lifestyle of entomopathogenic fungi.
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Affiliation(s)
- Jia-Hui Lei
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jin-Li Ding
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
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Bi Y, Lin HY, Li ML, Zhou J, Sun XL. The Association Between Pancreatic Steatosis and Metabolic Syndrome: A 5-Year Follow-up Study Among a General Chinese Population. Pancreas 2022; 51:1000-1006. [PMID: 36607946 DOI: 10.1097/mpa.0000000000002138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVES To date, the complete natural history of pancreatic steatosis is unknown. This study aimed to investigate the association of fatty pancreas (FP) in the incidence of metabolic syndrome and its components among Chinese patients with a 5-year follow-up. METHODS Three independent cross-sectional surveys were carried out in 2013, 2015, and 2018. Fatty pancreas was diagnosed via transabdominal sonography. Logistic regression analysis was used to estimate the correlation between FP and metabolic syndrome. New cases of metabolic syndrome and its components were estimated by Cox proportional hazards models. RESULTS At baseline, 12,551 individuals classified into FP (n = 1010) and non-FP (n = 11,541) groups were finally enrolled. In cross-sectional analyses, odds ratio of FP was 2.378 (95% confidence interval [CI], 2.085-2.713; P < 0.001). In longitudinal analyses, FP was associated with the occurrence of metabolic syndrome (hazard ratio [HR], 3.179; 95% CI, 2.197-4.6; P < 0.001), type 2 diabetes mellitus (HR, 13.99; 95% CI, 7.865-24.883; P < 0.001), nonalcoholic fatty liver disease (HR, 31.843; 95% CI, 7.73-131.171; P < 0.001), and hypertension (HR, 12.801; 95% CI, 7.323-22.38; P < 0.001). CONCLUSIONS Pancreatic steatosis is strongly associated with the occurrence of metabolic syndrome and its components such as hypertension and diabetes.
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Affiliation(s)
- Ye Bi
- From the Department of Geriatric Endocrinology
| | - Hai-Yan Lin
- Physical Examination Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | | | - Jie Zhou
- From the Department of Geriatric Endocrinology
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Lei XX, Cheng LHH, Lin HY, Yang Y, Lu YY, Pang MR, Dong YQ, Bikker FJ, Forouzanfar T, Cheng B, Wu G. The minimal active domain of human salivary histatin 1 is efficacious in promoting acute skin wound healing. Mil Med Res 2022; 9:41. [PMID: 35841072 PMCID: PMC9287874 DOI: 10.1186/s40779-022-00398-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/21/2022] [Indexed: 12/05/2022] Open
Affiliation(s)
- Xiao-Xuan Lei
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands.,Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Liu Hang-Hang Cheng
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands.,Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Hai-Yan Lin
- Savaid Stomatology School, Hangzhou Medical College, Hangzhou, 310053, China
| | - Yu Yang
- Department of Plastic Surgery, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510140, China
| | - Yun-Yu Lu
- Hangzhou Huibo Science and Technology Co. LTD, Xinjie Science Park, Hangzhou, 311217, China
| | - Meng-Ru Pang
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Yun-Qing Dong
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Floris J Bikker
- Department of Oral Biochemistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), 1081LA, Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands
| | - Biao Cheng
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China.
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands. .,Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Gustav Mahlerlaan 3004, 1081LA, Amsterdam, The Netherlands.
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9
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Peng YJ, Hou J, Zhang H, Lei JH, Lin HY, Ding JL, Feng MG, Ying SH. Systematic contributions of CFEM domain-containing proteins to iron acquisition are essential for interspecies interaction of the filamentous pathogenic fungus Beauveria bassiana. Environ Microbiol 2022; 24:3693-3704. [PMID: 35523457 DOI: 10.1111/1462-2920.16032] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 11/29/2022]
Abstract
Common in fungal extracellular membrane (CFEM) domain is unique in fungal proteins and some of which contribute to iron acquisition in yeast. However, their roles in iron acquisition remain largely unknown in filamentous fungi. In this study, 12 CFEM-containing proteins were bioinformatically identified in the filamentous entomopathogenic fungus Beauveria bassiana, and the roles of 11 genes were genetically characterized. Transmembrane helices were critical for their association with intracellular membranes, and their number varied among proteins. Eleven CFEM genes significantly contribute to vegetative growth under iron starvation and virulence. Notably, the virulence of most disruptants could be significantly weakened by a decrease in iron availability, in which the virulence of ΔBbcfem7 and 8 strains was partially recovered by exogenous hemin. ΔBbcfem7 and 8 mutants displayed defective competitiveness against the sister entomopathogenic fungus Beauveria brongniartii. All 11 disruptants displayed impaired growth in the antagonistic assay with the saprotrophic fungus Aspergillus niger, which could be repressed by exogenous ferric ions. These findings not only reveal the systematic contributions of CFEM proteins to acquire two forms of iron (i.e. heme and ferric ion) in the entire lifecycle of entomopathogenic fungi but also help to better understand the mechanisms of fungus-host and inter-fungus interactions.
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Affiliation(s)
- Yue-Jin Peng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jia Hou
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hao Zhang
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jia-Hui Lei
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jin-Li Ding
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
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10
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Lin HY, Pang MY, Feng MG, Ying SH. A peroxisomal sterol carrier protein 2 (Scp2) contributes to lipid trafficking in differentiation and virulence of the insect pathogenic fungus Beauveria bassiana. Fungal Genet Biol 2021; 158:103651. [PMID: 34906632 DOI: 10.1016/j.fgb.2021.103651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/30/2021] [Accepted: 12/06/2021] [Indexed: 01/04/2023]
Abstract
Sterol carrier protein 2 (SCP2) represents a family of proteins binding a variety of lipids and plays essential roles in cellular physiology. However, its physiological roles are largely unknown in filamentous fungi. In this study, we functionally characterized an orthologous Scp2 gene in the filamentous insect pathogenic fungus Beauveria bassiana (BbScp2). BbScp2 was verified to be a peroxisomal protein and displayed different affinities to various lipids, with strong affinity to palmitic acid (PA) and ergosterol (ES). No significant binding activity was detected between protein and oleic acid (OA) or linoleic acid (LA). Ablation of BbScp2 did not cause significant effects on fungal growth on various carbon sources, but resulted in a modest reduction in conidial (49%) and blastospore yield (45%). In addition, exogenous lipids could recover the defectives in conidiation of ΔBbScp2 mutant strain. BbScp2 was required for the cytomembrane functionality in germlings, and its loss resulted in a more significant decrease in virulence indicated by cuticle infection assay than intrahemocoel injection assay. Our findings indicate that Scp2 links the lipid trafficking to the asexual differentiation and virulence of B. bassiana.
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Affiliation(s)
- Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Meei-Yuan Pang
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
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11
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Peng YJ, Ding JL, Lin HY, Feng MG, Ying SH. A virulence-related lectin traffics into eisosome and contributes to functionality of cytomembrane and cell-wall in the insect-pathogenic fungus Beauveria bassiana. Fungal Biol 2021; 125:914-922. [PMID: 34649678 DOI: 10.1016/j.funbio.2021.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/29/2021] [Accepted: 06/12/2021] [Indexed: 11/25/2022]
Abstract
Lectins are characterized of the carbohydrate-binding ability and play comprehensive roles in fungal physiology (e.g., defense response, development and host-pathogen interaction). Beauveria bassiana, a filamentous entomopathogenic fungus, has a lectin-like protein containing a Fruit Body_domain (BbLec1). BbLec1 could bind to chitobiose and chitin in fungal cell wall. BbLec1 proteins interacted with each other to form multimers, and translocated into eisosomes. Further, the interdependence between BbLec1 and the eisosome protein PliA was essential for stabilizing the eisosome architecture. To test the BbLec1 roles in B. bassiana, we constructed the gene disruption and complementation mutants. Notably, the BbLec1 loss resulted in the impaired cell wall in mycelia and conidia as well as conidial formation capacity. In addition, disruption of BbLec1 led to the reduced cytomembrane integrity and the enhanced sensitivity to osmotic stress. Finally, ΔBbLec1 mutant strain displayed the weakened virulence when compared with the wild-type strain. Taken together, BbLec1 traffics into eisosome and links the functionality of eisosome to development and virulence of B. bassiana.
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Affiliation(s)
- Yue-Jin Peng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jin-Li Ding
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
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12
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Zhang RK, Xiao Q, Zhu SL, Lin HY, Tang M. Using different machine learning models to classify patients into mild and severe cases of COVID-19 based on multivariate blood testing. J Med Virol 2021; 94:357-365. [PMID: 34542195 PMCID: PMC8661590 DOI: 10.1002/jmv.27352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/02/2021] [Accepted: 09/16/2021] [Indexed: 01/08/2023]
Abstract
COVID-19 is a serious respiratory disease. The ever-increasing number of cases is causing heavier loads on the health service system. Using 38 blood test indicators on the first day of admission for the 422 patients diagnosed with COVID-19 (from January 2020 to June 2021) to construct different machine learning (ML) models to classify patients into either mild or severe cases of COVID-19. All models show good performance in the classification between COVID-19 patients into mild and severe disease. The area under the curve (AUC) of the random forest model is 0.89, the AUC of the naive Bayes model is 0.90, the AUC of the support vector machine model is 0.86, and the AUC of the KNN model is 0.78, the AUC of the Logistic regression model is 0.84, and the AUC of the artificial neural network model is 0.87, among which the naive Bayes model has the best performance. Different ML models can classify patients into mild and severe cases based on 38 blood test indicators taken on the first day of admission for patients diagnosed with COVID-19.
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Affiliation(s)
- Rui-Kun Zhang
- Health Science Center, Shenzhen University, Shenzhen, China
| | - Qi Xiao
- Health Science Center, Shenzhen University, Shenzhen, China
| | - Sheng-Lang Zhu
- Department of nephrology, Shenzhen Nanshan People's Hospital and The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Hai-Yan Lin
- Department of nephrology, Shenzhen Nanshan People's Hospital and The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Ming Tang
- Department of Critical Care Medicine, Shenzhen Third People's Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen, China
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13
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Lin HY, Zhu CQ, Zhang HH, Shen ZC, Zhang CX, Ye YX. The Genetic Network of Forkhead Gene Family in Development of Brown Planthoppers. Biology (Basel) 2021; 10:867. [PMID: 34571744 PMCID: PMC8469257 DOI: 10.3390/biology10090867] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022]
Abstract
We identified 18 distinct Fox genes in the genome of the brown planthopper, Nilaparvata lugens, and further found a novel insect-specific subfamily that we temporarily named FoxT. A total of 16 genes were highly expressed in the eggs, while NlFoxL2 and NlFoxT are female- and male-specific genes, respectively. Large scale RNAi and RNA-seq analyses were used to reveal the functions and potential targets of NlFoxs. In the eggs, NlFoxA, NlFoxN1 and NlFoxN2 are indispensable to early embryogenesis by regulating different target genes; NlFoxG and NlFoxQ co-regulate NlSix3 for brain development; and NlFoxC, NlFoxJ1 and NlFoxP have complementary effects on late embryogenesis. Moreover, NlFoxA, NlFoxNl and NlFoxQ have pleiotropism. NlFoxA and NlFoxQ regulate the expression of NlCHS1 and cuticular proteins, respectively, thereby participating in the formation of cuticles. NlFoxN1, which regulates the expression of NlKrt9 is involved in the formation of intermediate filament frameworks. Our previous studies have revealed that NlFoxL2 and NlFoxO play important roles in chorion formation and wing polyphenism. Altogether, N. lugens Fox genes exhibit functional diversity in embryonic development and organogenesis. This comprehensive study combines genomics, transcriptomics and phenomics, thereby constructing a complex genetic network that spans the entire life cycle of the brown planthopper.
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Affiliation(s)
- Hai-Yan Lin
- The Rural Development Academy, Zhejiang University, Hangzhou 310058, China; (H.-Y.L.); (C.-Q.Z.)
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; (H.-H.Z.); (Z.-C.S.); (C.-X.Z.)
| | - Cheng-Qi Zhu
- The Rural Development Academy, Zhejiang University, Hangzhou 310058, China; (H.-Y.L.); (C.-Q.Z.)
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; (H.-H.Z.); (Z.-C.S.); (C.-X.Z.)
| | - Hou-Hong Zhang
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; (H.-H.Z.); (Z.-C.S.); (C.-X.Z.)
| | - Zhi-Cheng Shen
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; (H.-H.Z.); (Z.-C.S.); (C.-X.Z.)
| | - Chuan-Xi Zhang
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; (H.-H.Z.); (Z.-C.S.); (C.-X.Z.)
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Yu-Xuan Ye
- The Rural Development Academy, Zhejiang University, Hangzhou 310058, China; (H.-Y.L.); (C.-Q.Z.)
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; (H.-H.Z.); (Z.-C.S.); (C.-X.Z.)
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Pang MY, Lin HY, Hou J, Feng MG, Ying SH. Different contributions of the peroxisomal import protein Pex5 and Pex7 to development, stress response and virulence of insect fungal pathogen Beauveria bassiana. J Appl Microbiol 2021; 132:509-519. [PMID: 34260798 DOI: 10.1111/jam.15216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 11/27/2022]
Abstract
AIMS Peroxins Pex5 and Pex7 belong to the peroxisomal import machinery and recognize proteins containing peroxisomal targeting signal (PTS) type 1 and type 2, respectively. This study seeks to characterize these two peroxins in the entomopathogenic fungus Beauveria bassiana. METHODS AND RESULTS The orthologs of Pex5 and Pex7 in B. bassiana (BbPex5 and BbPex7) were functionally analyzed via protein localization and gene disruption. BbPex5 and BbPex7 were associated with peroxisome and specifically required for PTS1 and PTS2 pathways, respectively, which were demonstrated to be involved in development, tolerance to oxidative stress and virulence. ΔBbPex5 mutant displayed additionally defectives that were undetected in ΔBbPex7 in vegetative growth and resistance to osmotic and cell wall-perturbing stresses. Notably, Woronin body major protein Hex1 with PTS1 linked this organelle to the development and virulence of B. bassiana, which indicates that Woronin body is associated with the roles of PTS1 pathway. CONCLUSION Both PTS1 and PTS2 pathways are involved in broad physiological process, and the PTS1 pathway acts as a main peroxisomal import pathway. SIGNIFICANCE AND IMPACT OF THE STUDY This study shows the functional divergence of different peroxins and improves our understanding of organellar physiology involved in biocontrol potential of the entomopathogenic fungi.
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Affiliation(s)
- Meei-Yuan Pang
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jia Hou
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, China
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15
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Yan L, Liu Y, Ma XF, Hou D, Zhang YH, Sun Y, Shi SS, Forouzanfar T, Lin HY, Fan J, Wu G. Triclabendazole Induces Pyroptosis by Activating Caspase-3 to Cleave GSDME in Breast Cancer Cells. Front Pharmacol 2021; 12:670081. [PMID: 34305590 PMCID: PMC8297466 DOI: 10.3389/fphar.2021.670081] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 06/14/2021] [Indexed: 12/24/2022] Open
Abstract
Pyroptosis is a form of programmed cell death, in which gasdermin E (GSDME) plays an important role in cancer cells, which can be induced by activated caspase-3 on apoptotic stimulation. Triclabendazole is a new type of imidazole in fluke resistance and has been approved by the FDA for the treatment of fascioliasis and its functions partially acting through apoptosis-related mechanisms. However, it remains unclear whether triclabendazole has obvious anti-cancer effects on breast cancer cells. In this study, to test the function of triclabendazole on breast cancer, we treated breast cancer cells with triclabendazole and found that triclabendazole induced lytic cell death in MCF-7 and MDA-MB-231, and the dying cells became swollen with evident large bubbles, a typical sign of pyroptosis. Triclabendazole activates apoptosis by regulating the apoptoic protein levels including Bax, Bcl-2, and enhanced cleavage of caspase-8/9/3/7 and PARP. In addition, enhanced cleavage of GSDME was also observed, which indicates the secondary necrosis/pyroptosis is further induced by active caspase-3. Consistent with this, triclabendazole-induced GSDME-N-terminal fragment cleavage and pyroptosis were reduced by caspase-3-specific inhibitor (Ac-DEVD-CHO) treatment. Moreover, triclabendazole induced reactive oxygen species (ROS) elevation and increased JNK phosphorylation and lytic cell death, which could be rescued by the ROS scavenger (NAC), suggesting that triclabendazole-induced GSDME-dependent pyroptosis is related to the ROS/JNK/Bax-mitochondrial apoptotic pathway. Besides, we showed that triclabendazole significantly reduced the tumor volume by promoting the cleavage of caspase-3, PARP, and GSDME in the xenograft model. Altogether, our results revealed that triclabendazole induces GSDME-dependent pyroptosis by caspase-3 activation at least partly through augmenting the ROS/JNK/Bax-mitochondrial apoptotic pathway, providing insights into this on-the-market drug in its potential new application in cancer treatment.
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Affiliation(s)
- Liang Yan
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Yi Liu
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xue-Feng Ma
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Dan Hou
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC/VUmc Location and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universitetit Amsterdam, Amsterdam Movement Science, Amsterdam, Netherlands
| | - Yu-Hui Zhang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yong Sun
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Shan-Shan Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Tim Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC/VUmc Location and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universitetit Amsterdam, Amsterdam Movement Science, Amsterdam, Netherlands
| | - Hai-Yan Lin
- Savaid Stomatology School, Hangzhou Medical College, Hangzhou, China
| | - Jun Fan
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC/VUmc Location and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universitetit Amsterdam, Amsterdam Movement Science, Amsterdam, Netherlands.,Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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16
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Liu Y, Du M, Lin HY. Histone deacetylase 9 deficiency exaggerates uterine M2 macrophage polarization. J Cell Mol Med 2021; 25:7690-7708. [PMID: 34145738 PMCID: PMC8358884 DOI: 10.1111/jcmm.16616] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/23/2021] [Accepted: 04/29/2021] [Indexed: 12/16/2022] Open
Abstract
The maternal‐foetal interface is an immune‐privileged site where the semi‐allogeneic embryo is protected from attacks by the maternal immune system. Uterine macrophages are key players in establishing and maintaining pregnancy, and the dysregulation of the M1‐M2 subpopulation balance causes abortion. We separated two distinct mouse uterine macrophage subpopulations during early pregnancy, CD45+F4/80+CD206− M1‐like (M1) and CD45+F4/80+CD206+ M2‐like (M2) cells. The M1 preponderance was significantly exaggerated at 6 hours after lipopolysaccharide (LPS) treatment, and adoptive transfer of M2 macrophages partially rescued LPS‐induced abortion. RNA sequencing analysis of mouse uterine M2 versus M1 revealed 1837 differentially expressed genes (DEGs), among which 629 was up‐regulated and 1208 was down‐regulated. Histone deacetylase 9 (Hdac9) was one of the DEGs and validated to be significantly up‐regulated in uterine M2 as compared with M1. Remarkably, this differential expression profile between M1 and M2 was also evident in primary splenic macrophages and in vitro polarized murine peritoneal, bone marrow–derived and RAW 264.7 macrophages. In Hdac9/HDAC9 knockout RAW 264.7 and human THP‐1–derived macrophages, the expression of M1 differentiation markers was unchanged or decreased whereas M2 markers were increased compared with the wild‐type cells, and these effects were unrelated to compromised proliferation. Furthermore, Hdac9/HDAC9 ablation significantly enhanced the phagocytosis of fluorescent microspheres in M2 Raw 264.7 cells yet decreased the capacity of THP‐1‐derived M1 macrophages. The above results demonstrate that Hdac9/HDAC9 deficiency exaggerates M2 macrophage polarization in mouse and human macrophages, which may provide clues for our understanding of the epigenetic regulation on macrophage M1/M2 polarization in maternal‐foetal tolerance.
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Affiliation(s)
- Yanqin Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute of Physical Science and Information Technology, Anhui University, Hefei, China.,State Key Laboratory of Medicinal Chemical Biology and College of Life Sciences, Nankai University, Tianjin, China
| | - Meirong Du
- Gynecology and Obstetrics Hospital, Fudan University, Shanghai, China
| | - Hai-Yan Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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17
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Lin HY, Zhang XJ, Liu YM, Geng LY, Guan LY, Li XH. Comparison of the triglyceride glucose index and blood leukocyte indices as predictors of metabolic syndrome in healthy Chinese population. Sci Rep 2021; 11:10036. [PMID: 33976344 PMCID: PMC8113526 DOI: 10.1038/s41598-021-89494-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 04/21/2021] [Indexed: 02/08/2023] Open
Abstract
Triglyceride glucose (TyG) index and inflammatory markers are reported to have a positive association with metabolic syndrome (MetS). However, no previous study has assessed the value of TyG index and inflammatory markers as predictors of metabolic syndrome in the same study. This study looks at the comparison of the triglyceride index and blood leukocyte indices as predictors of metabolic syndrome in the Chinese population. The study cohort involved 1542 Chinese population without metabolic syndrome. The subjects underwent comprehensive routine health examination in 2011 and returned for a follow-up examination in 2016. Metabolic syndrome was defined according to Chinese Diabetes Society criteria, using body mass index for the replacement of waist circumference. TyG index, total leukocytes, neutrophils, lymphocytes, and neutrophil-to-lymphocyte ratio (NLR) were measured. Adjust d logistic models were used to assess the relationship between TyG index, blood leukocyte indices, and incident MetS. Receiver operating characteristic (ROC) curves were performed to determine the predictive value of TyG index and blood leukocyte indices for MetS. Results from multivariate logistic regression analysis showed that, in the adjusted model, the subjects with the highest quartile of TyG index and neutrophils had a 3.894- and 1.663-fold increased incidence of MetS (P < 0.0001 and P = 0.027), respectively. No significant association was observed between total leukocytes, lymphocytes, NLR with incident MetS. ROC analysis showed that the AUC of TyG index and neutrophils were 0.674 and 0.568 for incident MetS, respectively. TyG index rather than blood leukocyte indices may have the strongest predictive value in MetS development over a 5-year period.
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Affiliation(s)
- Hai-Yan Lin
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xiu-Juan Zhang
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Yu-Mei Liu
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Ling-Yun Geng
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Li-Ying Guan
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xiao-Hong Li
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
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18
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Dong ZH, Lin HY, Chen FL, Che XQ, Bi WK, Shi SL, Wang J, Gao L, He Z, Zhao JJ. Berberine improves intralipid-induced insulin resistance in murine. Acta Pharmacol Sin 2021; 42:735-743. [PMID: 32770172 PMCID: PMC8115075 DOI: 10.1038/s41401-020-0493-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 05/04/2020] [Accepted: 07/26/2020] [Indexed: 12/13/2022] Open
Abstract
Insulin resistance (IR) is a major metabolic risk factor even before the onset of hyperglycemia. Recently, berberine (BBR) is found to improve hyperglycemia and IR. In this study, we investigated whether BBR could improve IR independent of hyperglycemia. Acute insulin-resistant state was induced in rats by systemic infusion of intralipid (6.6%). BBR was administered via different delivery routes before or after the beginning of a 2-h euglycemic-hyperinsulinemic clamp. At the end of experiment, rats were sacrificed, gastrocnemius muscle was collected for detecting mitochondrial swelling, phosphorylation of Akt and AMPK, as well as the mitochondrial permeability regulator cyclophilin D (CypD) protein expression. We showed that BBR administration markedly ameliorated intralipid-induced IR without affecting blood glucose, which was accompanied by alleviated mitochondrial swelling in skeletal muscle. We used human skeletal muscle cells (HSMCs), AML12 hepatocytes, human umbilical vein endothelial cells, and CypD knockout mice to investigate metabolic and molecular alternations. In either HSMCs or AML12 hepatocytes, BBR (5 μM) abolished palmitate acid (PA)-induced increase of CypD protein levels. In CypD-deficient mice, intralipid-induced IR was greatly attenuated and the beneficial effect of BBR was diminished. Furthermore, we demonstrated that the inhibitory effect of BBR on intralipid-induced IR was mainly mediated by skeletal muscle, but not by intestine, liver, or microvasculature; BBR administration suppressed intralipid-induced upregulation of CypD expression in skeletal muscle. These results suggest that BBR alleviates intralipid-induced IR, which is related to the inhibition of CypD protein expression in skeletal muscle.
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Affiliation(s)
- Zhen-Hua Dong
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China
- Department of Endocrinology, Ji-nan Central Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China
| | - Hai-Yan Lin
- Department of Health Management Center, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China
| | - Fu-Lian Chen
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
| | - Xiao-Qi Che
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China
| | - Wen-Kai Bi
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China
| | - Shu-Long Shi
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
| | - Jing Wang
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China
- Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China
| | - Ling Gao
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Ji-nan, 250000, China.
| | - Zhao He
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China.
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China.
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China.
- Cheeloo College of Medicine, Shandong University, Ji-nan, 250000, China.
| | - Jia-Jun Zhao
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Ji-nan, 250021, China.
- Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China.
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Ji-nan, 250021, China.
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Lin HY, Song G, Lei F, Li D, Qu Y. Avian corticosteroid-binding globulin: biological function and regulatory mechanisms in physiological stress responses. Front Zool 2021; 18:22. [PMID: 33926473 PMCID: PMC8086359 DOI: 10.1186/s12983-021-00409-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/19/2021] [Indexed: 12/04/2022] Open
Abstract
Corticosteroid-binding globulin (CBG) is a high-affinity plasma protein that binds glucocorticoids (GCs) and regulates their biological activities. The structural and functional properties of CBG are crucial to understanding the biological actions of GCs in mediating stress responses and the underlying mechanisms. In response to stress, avian CBGs modulate the free and bound fractions of plasma corticosterone (CORT, the main GC), enabling them to mediate the physiological and behavioral responses that are fundamental for balancing the trade-off of energetic investment in reproduction, immunity, growth, metabolism and survival, including adaptations to extreme high-elevation or high-latitude environments. Unlike other vertebrates, avian CBGs substitute for sex hormone-binding globulin (SHBG) in transporting androgens and regulating their bioavailability, since birds lack an Shbg gene. The three-dimensional structures of avian and mammalian CBGs are highly conserved, but the steroid-binding site topographies and their modes of binding steroids differ. Given that CBG serves as the primary transporter of both GCs and reproductive hormones in birds, we aim to review the biological properties of avian CBGs in the context of steroid hormone transportation, stress responses and adaptation to harsh environments, and to provide insight into evolutionary adaptations in CBG functions occurred to accommodate physiological and endocrine changes in birds compared with mammals.
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Affiliation(s)
- Hai-Yan Lin
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Gang Song
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Fumin Lei
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Dongming Li
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
| | - Yanhua Qu
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
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20
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Hou J, Wang JJ, Lin HY, Feng MG, Ying SH. Roles of autophagy-related genes in conidiogenesis and blastospore formation, virulence, and stress response of Beauveria bassiana. Fungal Biol 2020; 124:1052-1057. [PMID: 33213785 DOI: 10.1016/j.funbio.2020.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 10/02/2020] [Accepted: 10/04/2020] [Indexed: 10/23/2022]
Abstract
Autophagy is a conserved intracellular recycling mechanism, in which autophagy-related genes 12 and 16 (ATG12 and ATG16) function in a complex controlling the ubiquitin-like conjugation system. In the insect-pathogenic fungus Beauveria bassiana, ATG12 and ATG16 were functionally characterized. Disruption of BbATG12 or BbATG16 resulted in the absence of autophagic bodies under starvation stress. ΔBbATG12 and ΔBbATG16 mutant strains displayed similar defects in asexual development (conidiation and blastospore formation) and tolerance to oxidative stress. ΔBbATG16 strain exhibited the impaired growth on the media with gelatin or chitin as a single nitrogen source, and ΔBbATG12 displayed decreased growth on the media with sucrose, fructose or maltose as a single carbon source. Both BbATG12 and BbATG16 were required for fungal virulence. BbATG16 mutation had more effects on fungal virulence than BbATG12 in topical infection assay, although both genes had similar contributions to fungal virulence in intrahemocoel injection assay. This study indicates that BbATG12 and BbATG16 mediate diverse biological functions in addition to their convergent roles in autophagy.
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Affiliation(s)
- Jia Hou
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jia-Jia Wang
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
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21
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Tu YY, Zhou J, Yu YC, Fan MX, Pan HS, Lin HY. [Accuracy of 6D computed-derived implant guides made in China for dental implant surgery in edentulous patients]. Shanghai Kou Qiang Yi Xue 2020; 29:504-508. [PMID: 33543217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
PURPOSE To evaluate the accuracy of 6D computed-derived implant guides made in China, in order to provide methods and basis for reducing deviation. METHODS 3D rapid prototyping technique was used to fabricate implant guides for auxiliary surgical implantation in edentulous patients, and the position deviation between the preoperative design and the actual implant was measured. Sixteen edentulous patients with 172 implantation sites were measured. In 10 patients, six implants were implanted in the maxilla, 4 implants in the mandible, and 6 implants were implanted both in the maxilla and mandible of 6 patients. A total of 28 implants were tilted implant in 14 patients. Preoperative cone-beam CT(CBCT) data were imported into the 6D Dental Planning Software to design and make the implant guides. Digital guides were used to assist implant placement. Preoperative design and postoperative CBCT were imported into the software for 3D reconstruction and registration, and then exported to Geomagic Studio software for analysis to obtain the deviation between the preoperative design and the implantation, so as to analyze the accuracy of the guides. The differences were analyzed by SPSS 25.0 software package with paired t-test and single factor analysis of variance. RESULTS The distance deviation of implant neck center point was (0.83±0.27) mm and the horizontal deviation was (0.60±0.21) mm. The distance deviation of implant bottom center point was (1.11±0.35) mm, and the vertical deviation was (0.45±0.19) mm. The angle deviation was (3.16±1.73)°. CONCLUSIONS The 6D computed-derived implant guides made in China can improve the accuracy and efficiency of implant surgery for edentulous patients and obtain a better long-term clinical effect to meet clinical requirements well. Since the deviation is similar to other implant guide plate systems that reported aborad, it must be taken into account in the process of clinical design, in order to avoid risks and unnecessary complications. This method is worthy of wide clinical application.
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Affiliation(s)
- Ye-Ying Tu
- Stomatological College of Zhejiang Chinese Medicine University. Hangzhou 310053, China. E-mail:
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22
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Wang R, Yu R, Zhu C, Lin HY, Lu X, Wang H. Tubulin detyrosination promotes human trophoblast syncytium formation. J Mol Cell Biol 2020; 11:967-978. [PMID: 31408157 PMCID: PMC6927241 DOI: 10.1093/jmcb/mjz084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 12/26/2018] [Revised: 05/22/2019] [Accepted: 07/11/2019] [Indexed: 12/03/2022] Open
Abstract
Human trophoblast syncytialization is one of the most important yet least understood events during placental development. In this study, we found that detyrosinated α-tubulin (detyr-α-tub), which is negatively regulated by tubulin tyrosine ligase (TTL), was elevated during human placental cytotrophoblast fusion. Correspondingly, relatively high expression of TTL protein was observed in first-trimester human placental cytotrophoblast cells, but fusing trophoblast cells exhibited much lower levels of TTL. Notably, fusion of preeclamptic cytotrophoblast cells was compromised but could be partially rescued by knockdown of TTL levels. Mechanistically, chronic downregulation of TTL in trophoblast cells resulted in significantly elevated expression of detyr-α-tub. Restoration of detyr-α-tub thus contributed to the cell surface localization of the fusogenic protein Syncytin-2 and the gap junction protein Connexin 43 (Cx43), which in turn promoted successful fusion between trophoblast cells. Taken together, the results suggest that tubulin detyrosination plays an essential role in human trophoblast fusogenic protein aggregation and syncytialization. Insufficient tubulin detyrosination leads to defects in syncytialization and potentially to the onset of preeclampsia.
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Affiliation(s)
- Rui Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Department of Experimental Radiation Oncology, the University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ruoxuan Yu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Cheng Zhu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hai-Yan Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Xiaoyin Lu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Department of Experimental Radiation Oncology, the University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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23
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Senner CE, Chrysanthou S, Burge S, Lin HY, Branco MR, Hemberger M. TET1 and 5-Hydroxymethylation Preserve the Stem Cell State of Mouse Trophoblast. Stem Cell Reports 2020; 15:1301-1316. [PMID: 32442533 PMCID: PMC7724466 DOI: 10.1016/j.stemcr.2020.04.009] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023] Open
Abstract
The ten-eleven translocation factor TET1 and its conferred epigenetic modification 5-hydroxymethylcytosine (5hmC) have important roles in maintaining the pluripotent state of embryonic stem cells (ESCs). We previously showed that TET1 is also essential to maintain the stem cell state of trophoblast stem cells (TSCs). Here, we establish an integrated panel of absolute 5hmC levels, genome-wide DNA methylation and hydroxymethylation patterns, transcriptomes, and TET1 chromatin occupancy in TSCs and differentiated trophoblast cells. We show that the combined presence of 5-methylcytosine (5mC) and 5hmC correlates with transcriptional activity of associated genes. Hypoxia can slow down the global loss of 5hmC that occurs upon differentiation of TSCs. Notably, unlike in ESCs and epiblast cells, most TET1-bound regions overlap with active chromatin marks and TFAP2C binding sites and demarcate putative trophoblast enhancer regions. These chromatin modification and occupancy patterns are highly informative to identify novel candidate regulators of the TSC state. 5hmC to 5mC ratios correlate with gene activity in TS cells TS cell differentiation-associated loss of 5hmC is slowed down in hypoxia TET1 binding in TS cells forms long-range interactions with key trophoblast genes Intergenic TET1 binding sites in TS cells demarcate putative trophoblast enhancers
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Affiliation(s)
- Claire E Senner
- Epigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Tennis Court Road, Cambridge CB2 3EG, UK.
| | - Stephanie Chrysanthou
- Epigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Department of Genetics, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Sarah Burge
- Epigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK
| | - Hai-Yan Lin
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Miguel R Branco
- Blizard Institute, Barts and the London School of Medicine and Dentistry, QMUL, London E1 2AT, UK
| | - Myriam Hemberger
- Epigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Tennis Court Road, Cambridge CB2 3EG, UK; Departments of Biochemistry & Molecular Biology and Medical Genetics, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive N.W., Calgary, Alberta T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, 3330 Hospital Drive N.W., Calgary, Alberta, T2N 4N1, Canada.
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24
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Haddad RI, Massarelli E, Lee JJ, Lin HY, Hutcheson K, Lewis J, Garden AS, Blumenschein GR, William WN, Pharaon RR, Tishler RB, Glisson BS, Pickering C, Gold KA, Johnson FM, Rabinowits G, Ginsberg LE, Williams MD, Myers J, Kies MS, Papadimitrakopoulou V. Weekly paclitaxel, carboplatin, cetuximab, and cetuximab, docetaxel, cisplatin, and fluorouracil, followed by local therapy in previously untreated, locally advanced head and neck squamous cell carcinoma. Ann Oncol 2020; 30:471-477. [PMID: 30596812 DOI: 10.1093/annonc/mdy549] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The survival advantage of induction chemotherapy (IC) followed by locoregional treatment is controversial in locally advanced head and neck squamous cell carcinoma (LAHNSCC). We previously showed feasibility and safety of cetuximab-based IC (paclitaxel/carboplatin/cetuximab-PCC, and docetaxel/cisplatin/5-fluorouracil/cetuximab-C-TPF) followed by local therapy in LAHNSCC. The primary end point of this phase II clinical trial with randomization to PCC and C-TPF followed by combined local therapy in patients with LAHNSCC stratified by human papillomavirus (HPV) status and T-stage was 2-year progression-free survival (PFS) compared with historical control. PATIENTS AND METHODS Eligible patients were ≥18 years with squamous cell carcinoma of the oropharynx, oral cavity, nasopharynx, hypopharynx, or larynx with measurable stage IV (T0-4N2b-2c/3M0) and known HPV by p16 status. Stratification was by HPV and T-stage into one of the two risk groups: (i) low-risk: HPV-positive and T0-3 or HPV-negative and T0-2; (ii) intermediate/high-risk: HPV-positive and T4 or HPV-negative and T3-4. Patient reported outcomes were carried out. RESULTS A total of 136 patients were randomized in the study, 68 to each arm. With a median follow up of 3.2 years, the 2-year PFS in the PCC arm was 89% in the overall, 96% in the low-risk and 67% in the intermediate/high-risk groups; in the C-TPF arm 2-year PFS was 88% in the overall, 88% in the low-risk and 89% in the intermediate/high-risk groups. CONCLUSION The observed 2-year PFS of PCC in the low-risk group and of C-TPF in the intermediate/high-risk group showed a 20% improvement compared with the historical control derived from RTOG-0129, therefore reaching the primary end point of the trial.
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Affiliation(s)
- R I Haddad
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston
| | - E Massarelli
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston; Department of Medical Oncology and Therapeutics Research, City of Hope Cancer Center, Duarte
| | - J J Lee
- Departments of Biostatistics
| | - H Y Lin
- Departments of Biostatistics
| | | | - J Lewis
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | - A S Garden
- Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, USA
| | - G R Blumenschein
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | - W N William
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston; Oncology Center, Hospital BP, A Beneficencia Portuguesa de São Paulo, São Paulo, Brazil
| | - R R Pharaon
- Department of Medical Oncology and Therapeutics Research, City of Hope Cancer Center, Duarte
| | - R B Tishler
- Department of Radiation Oncology, Dana Farber Cancer Institute, Boston
| | - B S Glisson
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | | | - K A Gold
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston; Division of Hematology and Oncology, University of California San Diego Moores Cancer Center, La Jolla
| | - F M Johnson
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | - G Rabinowits
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston; Department of Head and Neck Oncology, Baptist Health South Florida, Coral Gables
| | | | - M D Williams
- Pathology, University of Texas MD Anderson Cancer Center, Houston, USA
| | | | - M S Kies
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | - V Papadimitrakopoulou
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston.
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25
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Zhu MZ, Lu DM, Ouyang J, Zhou F, Huang PF, Gu BZ, Tang JW, Shen F, Li JF, Li YL, Lin HY, Li J, Zeng X, Wu JL, Cai SX, Wang KB, Huang JA, Liu ZH. Tea consumption and colorectal cancer risk: a meta-analysis of prospective cohort studies. Eur J Nutr 2020; 59:3603-3615. [PMID: 32078065 DOI: 10.1007/s00394-020-02195-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 01/28/2020] [Indexed: 12/22/2022]
Abstract
PURPOSE Data from in vitro and animal studies support the preventive effect of tea (Camellia sinensis) against colorectal cancer. Further, many epidemiologic studies evaluated the association between tea consumption and colorectal cancer risk, but the results were inconsistent. We conducted a meta-analysis of prospective cohort studies to systematically assess the association between tea consumption and colorectal cancer risk. METHODS A comprehensive literature review was conducted to identify the related articles by searching PubMed and Embase up to June, 2019. Summary relative risks (RRs) and 95% confidence intervals (CIs) were calculated using a fixed effect model. RESULTS Twenty cohort articles were included in the present meta-analysis involving 2,068,137 participants and 21,437 cases. The combined RR of colorectal cancer for the highest vs. lowest tea consumption was determined to 0.97 (95% CI 0.94-1.01) with marginal heterogeneity (I2 = 24.0%, P = 0.093) among all studies. This indicated that tea consumption had no significant association with colorectal cancer risk. Stratified analysis showed that no significant differences were found in all subgroups. We further conducted the gender-specific meta-analysis for deriving a more precise estimation. No significant association was observed between tea consumption and colorectal cancer risk in male (combined RR = 0.97; 95% CI 0.90-1.04). However, tea consumption had a marginal significant inverse impact on colorectal cancer risk in female (combined RR = 0.93; 95% CI 0.86-1.00). Further, we found a stronger inverse association between tea consumption and risk of colorectal cancer among the female studies with no adjustment of coffee intake (RR: 0.90; 95% CI 0.82-1.00, P < 0.05) compared to the female studies that adjusted for coffee intake (RR = 0.97; 95% CI 0.87-1.09, P > 0.05). CONCLUSIONS Our finding indicates that tea consumption has no significant impact on the colorectal cancer risk in both genders combined, but gender-specific meta-analysis shows that tea consumption has a marginal significant inverse impact on colorectal cancer risk in female.
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Affiliation(s)
- Ming-Zhi Zhu
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China.,Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop, Hunan Agricultural University, Changsha, 410128, China
| | - Dan-Min Lu
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Jian Ouyang
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Fang Zhou
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Pei-Fang Huang
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Bao-Zheng Gu
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Jun-Wei Tang
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Fan Shen
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Jia-Feng Li
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Yi-Long Li
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Hai-Yan Lin
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Juan Li
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Xin Zeng
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
| | - Jian-Lin Wu
- State Key Laboratory for Quality Research of Chinese Medicines, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, 999078, China
| | - Shu-Xian Cai
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Kun-Bo Wang
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Jian-An Huang
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Zhong-Hua Liu
- Key Laboratory of Tea Science of Ministry of Education, National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China.
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He C, Lin HY, Wang CC, Zhang M, Lin YY, Huang FY, Lin YZ, Tan GH. Exopolysaccharide from Paecilomyces lilacinus modulates macrophage activities through the TLR4/NF‑κB/MAPK pathway. Mol Med Rep 2019; 20:4943-4952. [PMID: 31638207 PMCID: PMC6854591 DOI: 10.3892/mmr.2019.10746] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 09/26/2019] [Indexed: 01/02/2023] Open
Abstract
Multiple exopolysaccharides (EPSs) have been isolated from various organisms in extreme environments and have yielded a variety of activities. The present study evaluated the immunomodulatory capabilities of an EPS (termed PH‑EPS) derived from the fungus Paecilomyces lilacinus PH0016, which was isolated from a tropical and hyperhaline environment in southern China. The macrophage RAW 264.7 cell line was used to investigate the mechanism of PH‑EPS‑induced macrophage activation. The results indicated that RAW 264.7 macrophages were activated by PH‑EPS, in an effect slightly inferior to lipopolysaccharide (LPS), as evidenced by secretion of interleukin (IL)‑1β, tumor necrosis factor (TNF)‑α and nitric oxide (NO), and by significantly increased phagocytosis in the cells treated with PH‑EPS. Nuclear factor (NF)‑κB p65 was significantly translocated into the nucleus in the PH‑EPS‑treated cells. In addition, expression of inducible NO synthase (iNOS) and IκB‑α degradation were enhanced in PH‑EPS‑treated cells. The phosphorylation levels of p38, JNK and ERK were also significantly increased in the PH‑EPS‑treated cells. Furthermore, IL‑1β and TNF‑α production was markedly decreased in PH‑EPS‑treated cells when the mitogen‑activated protein kinase (MAPK) pathways were blocked by the inhibitor Dectin‑1 and by antibodies against Toll‑like receptor 4 (TLR4). The present results indicated that PH‑EPS from Paecilomyces lilacinus possessed the capability of activating RAW 264.7 cells via the TLR4/NF‑κB/MAPKs signaling pathway.
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Affiliation(s)
- Chao He
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Hai-Yan Lin
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Cai-Chun Wang
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Ming Zhang
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Ying-Ying Lin
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Feng-Ying Huang
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Ying-Zi Lin
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
| | - Guang-Hong Tan
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, Hainan 571199, P.R. China
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Lin HY, Wang JJ, Feng MG, Ying SH. Autophagy-related gene ATG7 participates in the asexual development, stress response and virulence of filamentous insect pathogenic fungus Beauveria bassiana. Curr Genet 2019; 65:1015-1024. [PMID: 30879087 DOI: 10.1007/s00294-019-00955-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/06/2019] [Accepted: 03/12/2019] [Indexed: 12/21/2022]
Abstract
Autophagy is a sophisticated mechanism for maintaining cellular homeostasis, in which E1-like enzyme (ATG7) controls the activation of ubiquitin-like conjugation system in the autophagy pathway. In the insect pathogenic fungus Beauveria bassiana, a yeast ortholog of ATG7 was identified and functionally analyzed. Ablation of BbATG7 gene blocks the autophagic process under starvation stress. The mutant ΔBbATG7 exhibited impaired growth on the media with chitin as single nitrogen source. On rich media, gene loss did not cause notable effect on vegetative growth, but resulted in a considerable reduction in conidiation (71.6%) and blastospore yield (61.1%) in the mutant. In addition, the ΔBbATG7 mutant displayed increased sensitivity to stress caused by menadione and Congo red. The virulence of ΔBbATG7 mutant was significantly attenuated as indicated in topical and intrahemocoel injection assays. Our study indicates that BbATG7 contributes to B. bassiana virulence via regulating autophagy pathway and playing non-autophagic functions in the infection cycle.
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Affiliation(s)
- Hai-Yan Lin
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jia-Jia Wang
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
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Han J, Zhang M, Lin HY, Huang FY, Lin YY, Tan GH, Zheng ZY. Impaired Autophagic Degradation of Transforming Growth Factor-β-Induced Protein by Macrophages in Lattice Corneal Dystrophy. Invest Ophthalmol Vis Sci 2019; 60:978-989. [PMID: 30884524 DOI: 10.1167/iovs.18-25838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Lattice corneal dystrophy (LCD) is related to the denaturation of transforming growth factor-β-induced protein (TGFBIp). Autophagic degradation of the denatured proteins by macrophages is one pathway to remove the denatured proteins. Thus, we investigated the role of autophagy in the degradation of mutant (MU) TGFBIp in macrophages. Methods Corneas from participants were observed by slit-lamp photography and subjected to histopathologic and genetic analysis. Wild-type (WT) and MU TGFBIp were recombined and expressed. Macrophages from MU participants were isolated and cocultured with the recombinant TGFBIp. Colocalization of the two molecules was observed by immunofluorescent microscopy. Enzyme-linked immunosorbent assay, Western blotting, and flow cytometry were used to detect changes in molecule expression related to the phenotype and autophagy process. Results Fourteen members from a family of 25 were identified as LCD sufferers. Significant TGFBIp aggregates and macrophage infiltration were found only in the corneas of LCD sufferers. Marker accumulation of TGFBIp was found in macrophages exposed to MU TGFBIp even at 5 hours after MU TGFBIp was withdrawn. High expressions of CD68 and CD36 were found in macrophages exposed to WT TGFBIp, but not to MU TGFBIp. Impaired autophagic flux due to defective autophagosome fusion to lysosomes was found in macrophages exposed to MU TGFBIp. Blockage of the autophagic process suppressed the expression of CD68 and CD36 in macrophages exposed to WT TGFBIp to levels similar to those found in macrophages exposed to MU TGFBIp. Conclusions Our results suggested that reversion of the defective autophagic process in macrophages may be a therapeutic strategy for patients with LCD.
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Affiliation(s)
- Ji Han
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China.,Department of Ophthalmology, The First Affiliated Hospital of Hainan Medical College, Haikou, China
| | - Ming Zhang
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China
| | - Hai-Yan Lin
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China
| | - Feng-Ying Huang
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China
| | - Ying-Ying Lin
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China
| | - Guang-Hong Tan
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China
| | - Zhen-You Zheng
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China.,Department of Ophthalmology, The First Affiliated Hospital of Hainan Medical College, Haikou, China
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Wang RF, Zhao D, Lin HY, Liu M, Wang WQ. [Clinical evaluation of two transalveolar methods for sinus augmentation with placing 1 204 implants immediately]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 53:821-825. [PMID: 30522205 DOI: 10.3760/cma.j.issn.1002-0098.2018.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 compare the clinical outcomes of posterior maxillary implant surgery when using the regular transalveolar approach or with the crestal approach-sinus (CAS-KIT), a device for maxillary sinus membrane elevation by the crestal approach using a special drilling system and hydraulic pressure. Methods: In this retrospective study 887 patients during Jan 2012 to July 2015 in Hangzhou Dental Hospital with underwent either regular transalveolar approach or CAS-KIT approach for maxillary augmentation; whereas 11 patients dropped out for the reason of serious membrane perforations. Totally, 876 patients with 1 204 plants, placed immediately after transalveolar maxillary augmentation, were included in this study. The data analysis was performed by radiological measures to assess the changes in height of maxillary sinus floor after the transalveolar augmentation at different time points. In addition, the complications after surgery, failure rates, osseointegration condition and the performance of rehabilitation were evaluated as well. Results: Five hundred and three patients were experienced with regular transalveolar approach, and 7 patients were drop out for the serious membrane perforations. Thus, 496 patients received 653 implants in this group; the average lifted range in maxillary sinus floor height changes was (4.08±3.45) mm. The complications were minor membrane perforations during procedure in 64 patients, postoperative maxillary sinus infection happening in 2 patients and 13 patients experienced rehabilitation failure. Three hundred and eighty-four patients had CAS-KIT approach with 4 patients dropped out. Three hundred and eighty patients get 551 implants with the mean lifted range of (8.36±4.07) mm in maxillary sinus floor height changes. Minor membrane perforations during procedure occurred in 31 people and 2 got postoperative maxillary sinus infection. The 4 year overall survival rate of 1 204 implants was 97.26%, with four implants fell off after 3 months of rehabilitation and one implant occurred after one year of rehabilitation. Conclusions: The regular transalveolar sinus lift technique is easier and time saving, but the compromised lifting range in maxillary sinus floor height and the comparatively high occurrence of intraoperative membrane perforations should be concerned. Using CAS-KIT could be an alternative method to perform maxillary sinus augmentation with a reduced incidence of complications. There was no statistically difference in implant failure rates and incidence of postoperative maxillary sinus infection between two groups.
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Affiliation(s)
- R F Wang
- Center of Implant Dentistry, Hangzhou Dental Hospital, Hangzhou 310000, China
| | - D Zhao
- Center of Implant Dentistry, Hangzhou Dental Hospital, Hangzhou 310000, China
| | - H Y Lin
- Center of Implant Dentistry, Hangzhou Dental Hospital, Hangzhou 310000, China
| | - M Liu
- Center of Implant Dentistry, Hangzhou Dental Hospital, Hangzhou 310000, China
| | - W Q Wang
- Center of Implant Dentistry, Hangzhou Dental Hospital, Hangzhou 310000, China
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Wang HX, Zhang C, Chen H, Nie YH, Lin HY, Jiang YJ. [T follicular helper/B/follicular dendritic cell localization is useful in the diagnosis of angioimmunoblastic T cell lymphoma]. Zhonghua Bing Li Xue Za Zhi 2019; 48:40-42. [PMID: 30641645 DOI: 10.3760/cma.j.issn.0529-5807.2019.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H X Wang
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - C Zhang
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - H Chen
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - Y H Nie
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - H Y Lin
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - Y J Jiang
- Department of Hematology, the Second People's Hospital of Lianyungang, Lianyungang 222006, China
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Shang CY, Lin HY, Tseng WY, Gau SS. A haplotype of the dopamine transporter gene modulates regional homogeneity, gray matter volume, and visual memory in children with attention-deficit/hyperactivity disorder. Psychol Med 2018; 48:2530-2540. [PMID: 29433615 DOI: 10.1017/s0033291718000144] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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] [Indexed: 11/05/2022]
Abstract
BACKGROUND The dopamine transporter gene (DAT1) and visual memory deficits have been consistently reported to be associated with attention-deficit/hyperactivity disorder (ADHD). This study aimed to examine whether a DAT1 haplotype affected functional and structural brain alterations in children with ADHD and whether those alterations were associated with visual memory. METHOD We recruited a total of 37 drug-naïve children with ADHD (17 with the DAT1 rs27048 (C)/rs429699 (T) haplotype and 20 without the CT haplotype) and 37 typically developing children (17 with the CT haplotype and 20 without the CT haplotype). Visual memory was assessed by the pattern recognition memory (PRM) and spatial recognition memory (SRM) tasks. We analyzed functional and structural brain architecture with regional homogeneity (ReHo) and gray matter volume (GMV). RESULTS The CT haplotype was associated with decreased ReHo in the left superior occipital gyrus, cuneus, and precuneus; and decreased GMV in the left superior occipital gyrus, cuneus, and precuneus, and in the right angular gyrus. Significant interactions of ADHD and the CT haplotype were found in the right postcentral gyrus for ReHo and in the right supplementary motor area for GMV. For the ADHD-CT group, we found negative correlations of total correct responses in PRM and SRM and positive correlations of mean latency of correct responses in PRM with the GMV in the left superior occipital gyrus, cuneus, and precuneus. CONCLUSIONS Our findings suggest that the DAT1-related GMV alterations in the posterior cortical regions may contribute to visual memory performance in children with ADHD.
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Affiliation(s)
- C Y Shang
- Department of Psychiatry,National Taiwan University Hospital and College of Medicine,Taipei,Taiwan
| | - H Y Lin
- Department of Psychiatry,National Taiwan University Hospital and College of Medicine,Taipei,Taiwan
| | - W Y Tseng
- Graduate Institute of Brain and Mind Sciences,National Taiwan University,Taipei,Taiwan
| | - S S Gau
- Department of Psychiatry,National Taiwan University Hospital and College of Medicine,Taipei,Taiwan
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Zhou MT, Feng L, Tao KJ, Zheng JP, Huang JB, Lin HY. [Effect of traditional Chinese medicine on osseointegration and bone absorption of implants]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:716-720. [PMID: 30392232 DOI: 10.3760/cma.j.issn.1002-0098.2018.10.014] [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
Implantation of the base bone in the implant after effective and rapid bone binding and prevention and treatment of bone resorption, to ensure the success of planting surgery is of great significance. This article reviews the mechanism of traditional Chinese medicine promoting bone integration and the etiopathological mechanism of bone resorption, and expounds the influence of traditional Chinese medicine on osseointegration and bone resorption.
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Affiliation(s)
- M T Zhou
- Department of Implantology, The Stomatology College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - L Feng
- Department of Implantology, The Stomatology College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - K J Tao
- Department of Implantology, The Stomatology College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - J P Zheng
- Department of Implantology, The Stomatology College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - J B Huang
- Department of Implantology, The Stomatology College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - H Y Lin
- Department of Implantology, The Stomatology College of Zhejiang Chinese Medical University, Hangzhou 310053, China
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Liang HC, Li D, Lin EH, Hsu CC, Lin HY. Investigation of the antiphase dynamics of the orthogonally polarized passively Q-switched Nd:YLF laser. Opt Express 2018; 26:26590-26597. [PMID: 30469743 DOI: 10.1364/oe.26.026590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 09/20/2018] [Indexed: 06/09/2023]
Abstract
The antiphase dynamics of Q-switched orthogonally polarized emissions have been thoroughly investigated. A Nd:YLF crystal with the anisotropic thermal lensing effect is used as the gain medium for achieving dual polarized laser. By using the Cr4+:YAG saturable absorber, the passively Q-switched output shows intriguing switching dynamics, where the number of pulses for both polarized components within one switching period is directly determined by the power ratio between the orthogonally polarized emissions. Experimental results reveal that the pulse energies of every single pulse for both orthogonally polarized states are equal with the maximum value of 223 μJ. The pulse durations for π- and σ-polarization are measured to be 15 ns and 11 ns and the corresponding peak power levels are up to 15.0 kW and 20.3 kW, respectively.
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Liu Y, Fan X, Wang R, Lu X, Dang YL, Wang H, Lin HY, Zhu C, Ge H, Cross JC, Wang H. Single-cell RNA-seq reveals the diversity of trophoblast subtypes and patterns of differentiation in the human placenta. Cell Res 2018; 28:819-832. [PMID: 30042384 PMCID: PMC6082907 DOI: 10.1038/s41422-018-0066-y] [Citation(s) in RCA: 222] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/13/2018] [Accepted: 06/20/2018] [Indexed: 12/12/2022] Open
Abstract
The placenta is crucial for a successful pregnancy and the health of both the fetus and the pregnant woman. However, how the human trophoblast lineage is regulated, including the categorization of the placental cell subtypes is poorly understood. Here we performed single-cell RNA sequencing (RNA-seq) on sorted placental cells from first- and second-trimester human placentas. New subtypes of cells of the known cytotrophoblast cells (CTBs), extravillous trophoblast cells (EVTs), Hofbauer cells, and mesenchymal stromal cells were identified and cell-type-specific gene signatures were defined. Functionally, this study revealed many previously unknown functions of the human placenta. Notably, 102 polypeptide hormone genes were found to be expressed by various subtypes of placental cells, which suggests a complex and significant role of these hormones in regulating fetal growth and adaptations of maternal physiology to pregnancy. These results document human placental trophoblast differentiation at single-cell resolution and thus advance our understanding of human placentation during the early stage of pregnancy.
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Affiliation(s)
- Yawei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China
| | - Xiaoying Fan
- Biomedical Pioneering Innovation Center, College of Life Science, Peking University, 100871, Beijing, China
| | - Rui Wang
- Biomedical Pioneering Innovation Center, College of Life Science, Peking University, 100871, Beijing, China
| | - Xiaoyin Lu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China.,Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Yan-Li Dang
- Department of Obstetrics and Gynecology, The 306th Hospital of PLA, 100101, Beijing, China
| | - Huiying Wang
- Department of Obstetrics and Gynecology, Beijing Shijitan Hospital, 100038, Beijing, China
| | - Hai-Yan Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China
| | - Cheng Zhu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China
| | - Hao Ge
- Biomedical Pioneering Innovation Center, College of Life Science, Peking University, 100871, Beijing, China
| | - James C Cross
- Departments of Biochemistry and Molecular Biology, Comparative Biology and Experimental Medicine, Obstetrics and Gynecology, and Medical Genetics, University of Calgary, Calgary, AB, T2N 4N1, Canada.
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China.
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Lu X, Wang R, Zhu C, Wang H, Lin HY, Gu Y, Cross JC, Wang H. Fine-Tuned and Cell-Cycle-Restricted Expression of Fusogenic Protein Syncytin-2 Maintains Functional Placental Syncytia. Cell Rep 2018; 21:1150-1159. [PMID: 29091755 DOI: 10.1016/j.celrep.2017.10.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/12/2017] [Accepted: 10/04/2017] [Indexed: 10/18/2022] Open
Abstract
Many types of multinucleated cells (syncytia) generated by cell-cell fusion are post-mitotic, but it remains unclear how this state is maintained and why. Here, we utilized the fluorescent ubiquitination-based cell-cycle indicator (Fucci) reporter system to show that human placental trophoblast cells were all in the G0 phase before they fuse. Expression of the fusogenic protein (fusogen) Syncytin-2 was confined to G0 cells. Overexpression of Syncytin-2 in cycling cells overrode the cell-cycle restriction and enabled fusion of cells in the S/G2/M phases but resulted in the unstable syncytia retaining mitotic features. The Syncytin-2-induced syncytia were functionally compromised with respect to pathogen defense and hormone secretion. We found that, during trophoblast fusion, the cell-cycle inhibitor p21 interacted with the GCM1 transcription factor, and this complex bound to the promoter of Syncytin-2 and promoted its transcription. These findings demonstrate that G0-restricted Syncytin-2 expression is a prerequisite for development of functional post-mitotic syncytia.
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Affiliation(s)
- Xiaoyin Lu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Rui Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Cheng Zhu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Haibin Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Hai-Yan Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yan Gu
- The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - James C Cross
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB T1S 1A2, Canada; Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB T1S 1A2, Canada; Department of Obstetrics and Gynecology, University of Calgary, Calgary, AB T1S 1A2, Canada; Department of Medical Genetics, University of Calgary, Calgary, AB T1S 1A2, Canada.
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
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Chen CY, Lin HY, Chen YW, Ko YJ, Liu YJ, Chen YH, Walzem RL, Chen SE. Obesity-associated cardiac pathogenesis in broiler breeder hens: Pathological adaption of cardiac hypertrophy. Poult Sci 2018; 96:2428-2437. [PMID: 28339908 DOI: 10.3382/ps/pex015] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/08/2017] [Indexed: 12/25/2022] Open
Abstract
Broiler hens consuming feed to appetite (ad libitum; AL) show increased mortality. Feed restriction (R) typically improves reproductive performance and livability of hens. Rapidly growing broilers can exhibit increased mortality due to cardiac insufficiency but it is unknown whether the increased mortality of non-R broiler hens is also due to cardiac compromise. To assess cardiac growth and physiology in fully mature birds, 45-week-old hens were either continued on R rations or assigned to AL feeding for 7 or 21 days. AL hens exhibited increased bodyweight, adiposity, absolute and relative heart weight, ventricular hypertrophy, and cardiac protein/DNA ratio by d 21 (P < 0.05). Increased heart weights due to hypertrophic growth was attributed to enhanced IGF-1-Akt-FoxO1 signaling and its downstream target, translation initiation factor 4E-BP1 in conjunction with down-regulation of ubiquitin ligase atrogin-1/MAFbx (P < 0.05). Reduced activation of cardiac AMPK and downstream activation of ACC-1 in parallel with increased cardiac nitric oxide levels, calcineurin activity, and MAPK activation in AL hens (P < 0.05) suggested that metabolic derangement develops along the cardiovascular remodeling. These indictors of cardiac maladaptive hypertrophic growth were further supported by uregulation of heart failure markers, BNP and MHC-β (P < 0.05). Hens allowed AL feeding for 70 d exhibited a higher incidence of mortality (40% vs. 10%) in association with ascites, pericardial effusion, and ventricle dilation. A higher incidence of irregular ECG patterns and rhythmicity consistent with persistently elevated systolic blood pressure and ventricle fibrosis were observed in AL hens (P < 0.05). These observations support the conclusion that AL feeding in broiler hens results in maladaptive cardiac hypertrophy that progresses to overt pathogenesis in contractility and thereby increases mortality. Feed restriction provides clear physiological benefit to heart function of adult broiler hens.
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Affiliation(s)
- C Y Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - H Y Lin
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y W Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y J Ko
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y J Liu
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y H Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - R L Walzem
- Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taiwan
| | - S E Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan.,Department of Poultry Science, Texas A&M University, College Station.,Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
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Chang WL, Liu YW, Dang YL, Jiang XX, Xu H, Huang X, Wang YL, Wang H, Zhu C, Xue LQ, Lin HY, Meng W, Wang H. PLAC8, a new marker for human interstitial extravillous trophoblast cells, promotes their invasion and migration. Development 2018; 145:dev.148932. [PMID: 29361555 PMCID: PMC5825838 DOI: 10.1242/dev.148932] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 01/04/2018] [Indexed: 12/17/2022]
Abstract
Proper differentiation of trophoblast cells in the human placenta is a prerequisite for a successful pregnancy, and dysregulation of this process may lead to malignant pregnancy outcomes, such as preeclampsia. Finding specific markers for different types of trophoblast cells is essential for understanding trophoblast differentiation. Here, we report that placenta-specific protein 8 (PLAC8) is specifically expressed in the interstitial extravillous trophoblast cells (iEVTs) on the fetomaternal interface. Using model systems, including placental villi-decidua co-culture, iEVTs induction by using primary trophoblast cells or explants, etc., we found that PLAC8 promotes invasion and migration of iEVTs. Mechanistically, time-lapse imaging, GTPase activity assay, co-immunoprecipitation and RNA-seq studies show that PLAC8 increases the Cdc42 and Rac1 activities, and further induces the formation of filopodia at the leading edge of the migratory trophoblast cells. More interestingly, PLAC8 is significantly upregulated under hypoxia and expression of PLAC8 is higher in iEVTs from preeclamptic placentas when compared with those from the normal control placentas. Together, PLAC8 is a new marker for iEVTs and plays an important role in promoting trophoblast invasion and migration. Highlighted Article: Oxygen tension-dependent expression of placenta-specific protein 8 positively regulates trophoblast invasion and migration partially through upregulating the activation of Rac1 and Cdc42.
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Affiliation(s)
- Wen-Lin Chang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, People's Republic of China.,College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - Ya-Wei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100039, People's Republic of China
| | - Yan-Li Dang
- Department of Obstetrics and Gynecology, the 306th Hospital of PLA, Beijing 100101, People's Republic of China
| | - Xiang-Xiang Jiang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100039, People's Republic of China
| | - Honglin Xu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Xing Huang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Yan-Ling Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Haibin Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Cheng Zhu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Li-Qun Xue
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - Hai-Yan Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Wenxiang Meng
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
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Wang XT, Liu DW, Zhang HM, Long Y, Guan XD, Qiu HB, Yu KJ, Yan J, Zhao H, Tang YQ, Ding X, Ma XC, Du W, Kang Y, Tang B, Ai YH, He HW, Chen DC, Chen H, Chai WZ, Zhou X, Cui N, Wang H, Rui X, Hu ZJ, Li JG, Xu Y, Yang Y, Ouyan B, Lin HY, Li YM, Wan XY, Yang RL, Qin YZ, Chao YG, Xie ZY, Sun RH, He ZY, Wang DF, Huang QQ, Jiang DP, Cao XY, Yu RG, Wang X, Chen XK, Wu JF, Zhang LN, Yin MG, Liu LX, Li SW, Chen ZJ, Luo Z. [Experts consensus on the management of the right heart function in critically ill patients]. Zhonghua Nei Ke Za Zhi 2018; 56:962-973. [PMID: 29202543 DOI: 10.3760/cma.j.issn.0578-1426.2017.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
To establish the experts consensus on the right heart function management in critically ill patients. The panel of consensus was composed of 30 experts in critical care medicine who are all members of Critical Hemodynamic Therapy Collaboration Group (CHTC Group). Each statement was assessed based on the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) principle. Then the Delphi method was adopted by 52 experts to reassess all the statements. (1) Right heart function is prone to be affected in critically illness, which will result in a auto-exaggerated vicious cycle. (2) Right heart function management is a key step of the hemodynamic therapy in critically ill patients. (3) Fluid resuscitation means the process of fluid therapy through rapid adjustment of intravascular volume aiming to improve tissue perfusion. Reversed fluid resuscitation means reducing volume. (4) The right ventricle afterload should be taken into consideration when using stroke volume variation (SVV) or pulse pressure variation (PPV) to assess fluid responsiveness.(5)Volume overload alone could lead to septal displacement and damage the diastolic function of the left ventricle. (6) The Starling curve of the right ventricle is not the same as the one applied to the left ventricle,the judgement of the different states for the right ventricle is the key of volume management. (7) The alteration of right heart function has its own characteristics, volume assessment and adjustment is an important part of the treatment of right ventricular dysfunction (8) Right ventricular enlargement is the prerequisite for increased cardiac output during reversed fluid resuscitation; Nonetheless, right heart enlargement does not mandate reversed fluid resuscitation.(9)Increased pulmonary vascular resistance induced by a variety of factors could affect right heart function by obstructing the blood flow. (10) When pulmonary hypertension was detected in clinical scenario, the differentiation of critical care-related pulmonary hypertension should be a priority. (11) Attention should be paid to the change of right heart function before and after implementation of mechanical ventilation and adjustment of ventilator parameter. (12) The pulmonary arterial pressure should be monitored timingly when dealing with critical care-related pulmonary hypertension accompanied with circulatory failure.(13) The elevation of pulmonary aterial pressure should be taken into account in critical patients with acute right heart dysfunction. (14) Prone position ventilation is an important measure to reduce pulmonary vascular resistance when treating acute respiratory distress syndrome patients accompanied with acute cor pulmonale. (15) Attention should be paid to right ventricle-pulmonary artery coupling during the management of right heart function. (16) Right ventricular diastolic function is more prone to be affected in critically ill patients, the application of critical ultrasound is more conducive to quantitative assessment of right ventricular diastolic function. (17) As one of the parameters to assess the filling pressure of right heart, central venous pressure can be used to assess right heart diastolic function. (18). The early and prominent manifestation of non-focal cardiac tamponade is right ventricular diastolic involvement, the elevated right atrial pressure should be noticed. (19) The effect of increased intrathoracic pressure on right heart diastolic function should be valued. (20) Ttricuspid annular plane systolic excursion (TAPSE) is an important parameter that reflects right ventricular systolic function, and it is recommended as a general indicator of critically ill patient. (21) Circulation management with right heart protection as the core strategy is the key point of the treatment of acute respiratory distress syndrome. (22) Right heart function involvement after cardiac surgery is very common and should be highly valued. (23) Right ventricular dysfunction should not be considered as a routine excuse for maintaining higher central venous pressure. (24) When left ventricular dilation, attention should be paid to the effect of left ventricle on right ventricular diastolic function. (25) The impact of left ventricular function should be excluded when the contractility of the right ventricle is decreased. (26) When the right heart load increases acutely, the shunt between the left and right heart should be monitored. (27) Attention should be paid to the increase of central venous pressure caused by right ventricular dysfunction and its influence on microcirculation blood flow. (28) When the vasoactive drugs was used to reduce the pressure of pulmonary circulation, different effects on pulmonary and systemic circulation should be evaluated. (29) Right atrial pressure is an important factor affecting venous return. Attention should be paid to the influence of the pressure composition of the right atrium on the venous return. (30) Attention should be paid to the role of the right ventricle in the acute pulmonary edema. (31) Monitoring the difference between the mean systemic filling pressure and the right atrial pressure is helpful to determine whether the infusion increases the venous return. (32) Venous return resistance is often considered to be a insignificant factor that affects venous return, but attention should be paid to the effect of the specific pathophysiological status, such as intrathoracic hypertension, intra-abdominal hypertension and so on. Consensus can promote right heart function management in critically ill patients, optimize hemodynamic therapy, and even affect prognosis.
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Affiliation(s)
| | - D W Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Lin XJ, Cai LM, Qian ZJ, Wang CY, Sun N, Sun XH, Huang H, Guo WJ, Lin HY, Yao RX. Increased histone deacetylase 6 expression serves as a favorable prognostic factor for diffuse large B-cell lymphoma. Onco Targets Ther 2017; 10:5129-5136. [PMID: 29123411 PMCID: PMC5661447 DOI: 10.2147/ott.s142974] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Indexed: 11/23/2022] Open
Abstract
Objective This study aims to investigate ectopic expression of histone deacetylase 6 (HDAC6) in diffuse large B-cell lymphoma (DLBCL). Methods This study analyzed patients with DLBCL (n=132) and reactive lymph node hyperplasia (n=32) diagnosed in our hospital from December 2007 to May 2016. Correlation between HDAC6 expression and clinical pathologic features was analyzed by χ2 test. The significant differences between the 5-year overall survival (OS) or progression-free survival (PFS) and high HDAC6 expression as well as DLBCL clinic-pathological features including age, International Prognostic Index (IPI) score, Eastern Cooperative Oncology Group score, lactate dehydrogenase (LDH), and germinal center B-cell-like were assessed by univariate and multivariate analyses. Results HDAC6 high-expression percentage in DLBCL was significantly higher than that in the control group. The proportion of IPI score of 0–2, 5-year OS, and PFS in the high-expression group, which had lower percentage of patients with increased LDH and β2-microglobulin, were significantly higher than those in the low-expression group. Moreover, HDAC6 mRNA expression in HDAC6 protein low expression was markedly lower than that in protein high expression. The multivariate analysis demonstrated that HDAC6 high expression was an independent prognostic factor for patients with DLBCL. Conclusion HDAC6 high expression might be a prognostic factor for DLBCL.
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Affiliation(s)
- Xiao-Ji Lin
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
| | - Li-Meng Cai
- Science and Technology of Students Association, The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Zi-Jun Qian
- Science and Technology of Students Association, The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Chen-Yi Wang
- Science and Technology of Students Association, The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Ni Sun
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
| | - Xiao-Hai Sun
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
| | - He Huang
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
| | - Wen-Jian Guo
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
| | - Hai-Yan Lin
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
| | - Rong-Xin Yao
- Department of Haematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
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Shang CY, Yan CG, Lin HY, Tseng WY, Castellanos FX, Gau SS. Differential effects of methylphenidate and atomoxetine on intrinsic brain activity in children with attention deficit hyperactivity disorder. Psychol Med 2016; 46:3173-3185. [PMID: 27574878 DOI: 10.1017/s0033291716001938] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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] [Indexed: 11/07/2022]
Abstract
BACKGROUND Methylphenidate and atomoxetine are commonly prescribed for treating attention deficit hyperactivity disorder (ADHD). However, their therapeutic neural mechanisms remain unclear. METHOD After baseline evaluation including cognitive testing of the Cambridge Neuropsychological Test Automated Battery (CANTAB), drug-naive children with ADHD (n = 46), aged 7-17 years, were randomly assigned to a 12-week treatment with methylphenidate (n = 22) or atomoxetine (n = 24). Intrinsic brain activity, including the fractional amplitude of low-frequency fluctuations (fALFF) and regional homogeneity (ReHo), was quantified via resting-state functional magnetic resonance imaging at baseline and week 12. RESULTS Reductions in inattentive symptoms were related to increased fALFF in the left superior temporal gyrus and left inferior parietal lobule for ADHD children treated with methylphenidate, and in the left lingual gyrus and left inferior occipital gyrus for ADHD children treated with atomoxetine. Hyperactivity/impulsivity symptom reductions were differentially related to increased fALFF in the methylphenidate group and to decreased fALFF in the atomoxetine group in bilateral precentral and postcentral gyri. Prediction analyses in the atomoxetine group revealed negative correlations between pre-treatment CANTAB simple reaction time and fALFF change in the left lingual gyrus and left inferior occipital gyrus, and positive correlations between pre-treatment CANTAB simple movement time and fALFF change in bilateral precentral and postcentral gyri and left precuneus, with a negative correlation between movement time and the fALFF change in the left lingual gyrus and the inferior occipital gyrus. CONCLUSIONS Our findings suggest differential neurophysiological mechanisms for the treatment effects of methylphenidate and atomoxetine in children with ADHD.
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Affiliation(s)
- C Y Shang
- Department of Psychiatry,National Taiwan University Hospital and College of Medicine,Taipei,Taiwan
| | - C G Yan
- Nathan Kline Institute for Psychiatric Research,Orangeburg, NY,USA
| | - H Y Lin
- Department of Psychiatry,National Taiwan University Hospital and College of Medicine,Taipei,Taiwan
| | - W Y Tseng
- Graduate Institute of Brain and Mind Sciences,Taipei,Taiwan
| | - F X Castellanos
- Nathan Kline Institute for Psychiatric Research,Orangeburg, NY,USA
| | - S S Gau
- Department of Psychiatry,National Taiwan University Hospital and College of Medicine,Taipei,Taiwan
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Zheng R, Li Y, Sun H, Lu X, Sun BF, Wang R, Cui L, Zhu C, Lin HY, Wang H. Deep RNA sequencing analysis of syncytialization-related genes during BeWo cell fusion. Reproduction 2016; 153:REP-16-0343. [PMID: 27742864 DOI: 10.1530/rep-16-0343] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/14/2016] [Indexed: 12/20/2022]
Abstract
The syncytiotrophoblast (STB) plays a key role in maintaining the function of the placenta during human pregnancy. However, the molecular network that orchestrates STB development remains elusive. The aim of this study was to obtain broad and deep insight into human STB formation via transcriptomics. We adopted RNA sequencing (RNA-Seq) to investigate genes and isoforms involved in forskolin (FSK)-induced fusion of BeWo cells. BeWo cells were treated with 50 μM FSK or dimethylsulfoxide (DMSO) as a vehicle control for 24 and 48 h, and the mRNAs at 0, 24 and 48 h was sequenced. We detected 28,633 expressed genes and identified 1,902 differentially expressed genes (DEGs) after FSK treatment for 24 and 48 h. Among the 1,902 DEGs, 461 were increased and 395 were decreased at 24 h, while 879 were up-regulated and 763 were down-regulated at 48 h. When the 856 DEGs identified at 24 h were traced individually at 48 h, they separated into 6 dynamic patterns via a K-means algorithm, and most were enriched in down-even and up-even patterns. Moreover, the Gene Ontology (GO) terms syncytium formation, cell junction assembly, cell fate commitment, calcium ion transport, regulation of epithelial cell differentiation and cell morphogenesis involved in differentiation were clustered, and the MAPK pathway was most significantly regulated. Analyses of alternative splicing isoforms detected 123,200 isoforms, of which 1,376 were differentially expressed. The present deep analysis of the RNA-Seq data of BeWo cell fusion provides important clues for understanding the mechanisms underlying human STB formation.
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Affiliation(s)
- Ru Zheng
- R Zheng, State Key Laboratory of Stem Cell and Reproductive Biology , Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yue Li
- Y Li, Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Huiying Sun
- H Sun, Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, CAS Center for Excellence in Molecular Cell Science, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Xiaoyin Lu
- X Lu, State Key Laboratory of Reproductive Biology Beijing, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Bao-Fa Sun
- B Sun, Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, CAS Center for Excellence in Molecular Cell Science, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Rui Wang
- R Wang, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Lina Cui
- L Cui, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chiense Academy of Sciences, Beijing, China
| | - Cheng Zhu
- C Zhu, State Key Laboratory of Stem Cell and Reproductive Biology , Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hai-Yan Lin
- H Lin, State Key Laboratory of Stem Cell and Reproductive Biology , Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hongmei Wang
- H Wang, State Key Laboratory of Stem Cell and Reproductive Biology , Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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Lin HY, Zhang WD, Yu YC, Jia HY, Wang RF. [Clinical study of titanium mesh in conjunction with concentrate growth factors to rebuild severe bone defect of anterior maxilla]. Shanghai Kou Qiang Yi Xue 2016; 25:352-356. [PMID: 27609392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
PURPOSE To evaluate the effect of overlaying titanium mesh with concentrate growth factors(CGF) for rebuilding severe buccal bone defect of anterior maxilla when used in association with dental implantation. METHODS Twenty patients with severe buccal bone defect of maxilla were selected. A total of 25 dental implants were placed, including 5 cases in bilateral central incisor area and 15 cases in unilateral central incisor area. After implantation, the defects were treated with Bio-oss and Bio-guid in conjunction with fixation of titanium mesh and then CGF technology was used. Two-stage surgery was carried out after 6 months of submerged healing, and permanent prosthesis was used 3 months after temporary restoration. The repairs of the defect were observed at the second stage surgery. The height of margin bone around implants and the thickness of bone at implants lingual side were measured, at the time of the second stage operation, and 3, 6, 12, 18 months after permanent restoration. The differences were analyzed by SPSS 19.0 software package with multi-sample nonparametric test and Fierdman test. RESULTS At the time of second operation, the bone plate at lingual side was completely reconstructed, and new bone was formed at the top of implants. Clinical measurements showed that the averaged thickness of bone at lingual side was (2.69±0.154) mm at that time. Three, 6, 12, 18 months after restoration, the values were (2.67±0.152) mm, (2.66±0.153) mm, (2.65±0.153) mm, (2.65±0.151) mm, respectively. Implant-abutment junction was used as a base line to assess vertical bone absorption, the marginal bone of implant neck at lingual side was all inferior to the base line, the distance was (0.02±0.048) mm, (0.69±0.085) mm,(0.87±0.019) mm, (0.87±0.013) mm, respectively. Statistical analysis showed the thickness of bone of labial side decreased significantly over time after permanent restoration (P<0.01). Likewise, the height of marginal bone was also decreased significantly (P<0.01). However, the difference between them at 12 months and 18 months was not statistically significant (P>0.05). CONCLUSIONS The results indicate that bone augmentation at maxilla can be achieved using titanium mesh in conjunction with CGF. The height and thickness of newly formed bone at the implant neck margin will be stabilized after 1 year. This method is worthy of wide clinical application.
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Affiliation(s)
- Hai-Yan Lin
- Hangzhou Stomatology Hospital of Zhejiang Chinese Medical University. Hangzhou 310000, Zhejiang Province, China. E-mail:
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Zhou J, Li ML, Zhang DD, Lin HY, Dai XH, Sun XL, Li JT, Song LY, Peng H, Wen MM. The correlation between pancreatic steatosis and metabolic syndrome in a Chinese population. Pancreatology 2016; 16:578-83. [PMID: 27050733 DOI: 10.1016/j.pan.2016.03.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 03/07/2016] [Accepted: 03/14/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Type 2 diabetes mellitus, obesity and hepatic steatosis showed a strong correlation with metabolic syndrome. However, data on the influence of pancreatic steatosis on metabolic syndrome are lacking. OBJECTIVE Our aim is to perform the prevalence of pancreatic steatosis in adults and its association with metabolic syndrome in a Chinese population. METHODS This was a cross-sectional study, randomly selected. A total of 1190 health examination subjects were recruited. Pancreatic steatosis or hepatic steatosis was diagnosed via trans-abdominal sonography. The clinical and metabolic parameters were compared between the two groups, and their associations with pancreatic steatosis were examined. RESULTS The prevalence of pancreatic steatosis was 30.7%. The presence of pancreatic steatosis was significantly increased by age, gender, central obesity, hepatic steatosis, hypertriglyceridemia and hyperglycemia. In the logistic regression analysis, age (P < 0.05), central obesity (P < 0.01), diabetes (P < 0.05), hypertriglyceridemia (P < 0.05) and hepatic steatosis (P < 0.01) were independently associated with pancreatic steatosis. The number of the parameters of the metabolic syndrome in pancreatic steatosis group was more than that in non-pancreatic steatosis group [(2.5 ± 1.1) vs (1.4 ± 1.2)] (P < 0.01). CONCLUSION The pancreatic steatosis is strongly associated with the parameters of metabolic syndrome, such as central obesity, diabetes, and hepatic steatosis.
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Affiliation(s)
- Jie Zhou
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Ming-Long Li
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.
| | - Dan-Dan Zhang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Hai-Yan Lin
- Physical Examination Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Xiao-Hua Dai
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Xiang-Lan Sun
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Jian-Ting Li
- Department of Endocrinology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Li-Yuan Song
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Hui Peng
- Physical Examination Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Meng-Meng Wen
- Physical Examination Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
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Chuang TL, Wang YF, Tsai CH, Chiu JE, Lee MS, Chiou WY, Lin HY, Tsai WT, Hung SK. Evaluation of salivary function by sialoscintigraphy in locally advanced nasopharyngeal cancer patients after intensity modulated radiotherapy. Indian J Cancer 2016; 52:398-401. [PMID: 26905151 DOI: 10.4103/0019-509x.176733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE This study aimed to evaluate the salivary gland function changes by sialoscintigraphy in locally advanced nasopharyngeal cancer (NPC) after intensity modulated radiotherapy (IMRT). MATERIALS AND METHODS Salivary function was assessed by sialoscintigraphy. Quantitative sialoscintigraphy was performed in 24 NPC patients prior to and after IMRT. Results were categorized in four groups according to the duration of treatment. The sialoscintigraphy parameters were examined. RESULTS Sialoscintigraphy showed a significant difference in the secretion of each interval groups. The parameters of scintigraphy, except maximum accumulation (MA) of submandibular glands, decreased first after radiotherapy, and then recovered. However, the MA of submandibular glands was continuously downhill after radiation. CONCLUSIONS The sialoscintigraphy parameters of each gland changed with the different radiation dose and follow-up intervals. The salivary function was influenced after radiotherapy in locally advanced NPC, especially, in the submandibular gland. Strategies to improve the salivary function should be assessed.
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Affiliation(s)
| | | | | | | | | | | | | | | | - S K Hung
- School of Medicine, Tzu Chi University, Hualian; Department of Radiation Oncology, Buddhist Dalin Tzu Chi Hospital, Chiayi, Taiwan
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Cui L, Wang H, Lu X, Wang R, Zheng R, Li Y, Yang X, Jia WT, Zhao Y, Wang Y, Wang H, Wang YL, Zhu C, Lin HY, Wang H. Effects of individually silenced N-glycosylation sites and non-synonymous single-nucleotide polymorphisms on the fusogenic function of human syncytin-2. Cell Adh Migr 2016; 10:39-55. [PMID: 26853155 PMCID: PMC4853038 DOI: 10.1080/19336918.2015.1093720] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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] [Indexed: 01/21/2023] Open
Abstract
The placental syncytiotrophoblast, which is formed by the fusion of cytotrophoblast cells, is indispensable for the establishment and maintenance of normal pregnancy. The human endogenous retrovirus envelope glycoprotein syncytin-2 is the most important player in mediating trophoblast cell-cell fusion as a fusogen. We constructed expression plasmids of wild-type and 21 single-amino-acid substitution mutants of syncytin-2, including 10 N-glycosylation sites individually silenced by mutagenizing N to Q, 1 naturally occurring single-nucleotide polymorphism (SNP) N118S that introduced an N-glycosylation site, and another 10 non-synonymous SNPs located within important functional domains. We observed that syncytin-2 was highly fusogenic and that the mutants had different capacities in merging 293T cells. Of the 21 mutants, N133Q, N312Q, N443Q, C46R (in the CXXC motif) and R417H (in the heptad repeat region and immunosuppressive domain) lost their fusogenicity, whereas N332Q, N118S, T367M (in the fusion peptide), V483I (in the transmembrane domain) and T522M (in the cytoplasmic domain) enhanced the fusogenic activity. We also proved that N133, N146, N177, N220, N241, N247, N312, N332 and N443 were all glycosylated in 293T cells. A co-immunoprecipitation assay showed compromised interaction between mutants N443Q, C46R, T367M, R417H and the receptor MFSD2A, whereas N118S was associated with more receptors. We also sequenced the coding sequence of syncytin-2 in 125 severe pre-eclamptic patients and 272 normal pregnant Chinese women. Surprisingly, only 1 non-synonymous SNP T522M was found and the frequencies of heterozygous carriers were not significantly different. Taken together, our results suggest that N-glycans at residues 133, 312, 332 and 443 of syncytin-2 are required for optimal fusion induction, and that SNPs C46R, N118S, T367M, R417H, V483I and T522M can alter the fusogenic function of syncytin-2.
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Affiliation(s)
- Lina Cui
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China.,b Graduate School of Chinese Academy of Sciences , Beijing , China
| | - Huiying Wang
- c Department of Obstetrics and Gynecology , Beijing Shijitan Hospital , Beijing , China
| | - Xiaoyin Lu
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China.,b Graduate School of Chinese Academy of Sciences , Beijing , China
| | - Rui Wang
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China.,b Graduate School of Chinese Academy of Sciences , Beijing , China
| | - Ru Zheng
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China.,b Graduate School of Chinese Academy of Sciences , Beijing , China
| | - Yue Li
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Xiaokui Yang
- d Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Wen-Tong Jia
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China.,b Graduate School of Chinese Academy of Sciences , Beijing , China
| | - Yangyu Zhao
- e Department of Obstetrics and Gynecology , Peking University Third Hospital , Beijing , China
| | - Yongqing Wang
- e Department of Obstetrics and Gynecology , Peking University Third Hospital , Beijing , China
| | - Haibin Wang
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Yan-Ling Wang
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Cheng Zhu
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Hai-Yan Lin
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Hongmei Wang
- a State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
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Lu X, He Y, Zhu C, Wang H, Chen S, Lin HY. Twist1 is involved in trophoblast syncytialization by regulating GCM1. Placenta 2016; 39:45-54. [PMID: 26992674 DOI: 10.1016/j.placenta.2016.01.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/21/2015] [Accepted: 01/08/2016] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The multinucleated syncytiotrophoblast (STB) is maintained and regenerated by the fusion of underlying cytotrophoblast cells (CTBs) and is responsible for a number of functions in the human placenta. Deficiencies in this structure may result in pregnancy-associated diseases. However, the detailed mechanisms underlying trophoblast syncytialization await further investigation. METHODS The location of the transcription factor Twist1 in human placental tissues was identified by immunohistochemistry. The expression of Twist1 and glial cells missing-1 (GCM1) was evaluated by qPCR or western blotting in two cell-fusion models including forskolin-induced fusion of BeWo cells and spontaneous syncytialization of CTBs. The key role of Twist1 in trophoblast differentiation was identified using BeWo cells transfected with Twist1-specific siRNA. We investigated the effect of hypoxia on the expression of Twist1 and GCM1 in primary CTBs cultured with 2% oxygen. The Twist1 binding region in the GCM1 gene was detected by chromatin-immunoprecipitation. RESULTS Twist1 was expressed in human placental tissues, and the expression of Twist1 and GCM1 increased in a time-dependent manner during spontaneous syncytialization of primary CTBs and forskolin-induced fusion of BeWo cells. A reduction in Twist1 and GCM1 expression was observed under hypoxic conditions and was accompanied by inhibition of trophoblast syncytialization. Moreover, siRNA-mediated silencing of Twist1 resulted in inhibition of BeWo cells fusion and down-regulation of GCM1 expression. Furthermore, Twist1 was found to bind to the E-box-enriched region in intron 2 of the GCM1 gene during forskolin-induced fusion of BeWo cells. DISCUSSION The above results suggest that Twist1 is required during trophoblast syncytialization. Twist1 may promote trophoblast syncytialization by regulating the expression of GCM1.
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Affiliation(s)
- Xiaoyin Lu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China; University of Chinese Academy of Sciences, Beijing, 100039, PR China
| | - Yuxia He
- Center for Reproductive Medicine, Department of Gynecology and Obstetrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, PR China; State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Cheng Zhu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Shiling Chen
- Center for Reproductive Medicine, Department of Gynecology and Obstetrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, PR China.
| | - Hai-Yan Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China.
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Luo ZP, Lin HY, Ding WB, He HL, Li YZ. Phylogenetic Diversity and Antifungal Activity of Endophytic Fungi Associated with Tephrosia purpurea. Mycobiology 2015; 43:435-443. [PMID: 26839503 PMCID: PMC4731648 DOI: 10.5941/myco.2015.43.4.435] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 09/30/2015] [Accepted: 10/13/2015] [Indexed: 05/29/2023]
Abstract
Sixty-one endophytic fungus strains with different colony morphologies were isolated from the leaves, stems and roots of Tephrosia purpurea with colonization rates of 66.95%, 37.50%, and 26.92%, respectively. Based on internal transcribed spacer sequence analysis, 61 isolates were classified into 16 genera belonging to 3 classes under the phylum Ascomycota. Of the 61 isolates, 6 (9.84%) exhibited antifungal activity against one or more indicator plant pathogenic fungi according to the dual culture test. Isolate TPL25 had the broadest antifungal spectrum of activity, and isolate TPL35 was active against 5 plant pathogenic fungi. Furthermore, culture filtrates of TPL25 and TPL35 exhibited greater than 80% growth inhibition against Sclerotinia sclerotiorum. We conclude that the endophytic fungal strains TPL25 and TPL35 are promising sources of bioactive compounds.
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Affiliation(s)
- Ze-Ping Luo
- Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Hunan Agricultural University, Changsha 410128, China.; Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Hai-Yan Lin
- Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China.; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Wen-Bing Ding
- Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Hunan Agricultural University, Changsha 410128, China.; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Hua-Liang He
- Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Hunan Agricultural University, Changsha 410128, China
| | - You-Zhi Li
- Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Hunan Agricultural University, Changsha 410128, China.; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
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Lin HY, Xu L, Xie SS, Yu F, Hu HY, Song XL, Wang CH. Mesenchymal stem cells suppress lung inflammation and airway remodeling in chronic asthma rat model via PI3K/Akt signaling pathway. Int J Clin Exp Pathol 2015; 8:8958-8967. [PMID: 26464637 PMCID: PMC4583869] [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] [Received: 06/26/2015] [Accepted: 07/29/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) came out to attract wide attention and had become one of the hotspots of most diseases' research in decades. But at present, the mechanisms of how MSCs work on chronic asthma remain undefined. Our study aims at verifying whether MSCs play a role in preventing inflammation and airway remodeling via PI3K/AKT signaling pathway in the chronic asthma rats model. METHODS First, an ovalbumin (OVA)-induced asthma model was built. MSCs were administered to ovalbumin-induced asthma rats. The total cells in a bronchial alveolar lavage fluid (BALF) and inflammatory mediators in BALF and serum were measured. Histological examination of lung tissue was performed to estimate the pathological changes. Additionally, the expression of phosphorylated-Akt (p-Akt) in all groups was measured by western blot and immunohistochemistry (IHC). RESULTS Compared to normal control group, the degree of airway inflammation and airway remodeling was significantly increased in asthma group. On the contrary, they were obviously inhibited in MSCs transplantation group. Moreover, the expression of p-Akt was increased in lung tissues of asthmatic rats, and suppressed by MSCs transplantation. CONCLUSION Our results demonstrated that MSCs transplantation could suppress lung inflammation and airway remodeling via PI3K/Akt signaling pathway in rat asthma model.
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Affiliation(s)
- Hai-Yan Lin
- Department of Respiratory Medicine, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai 200072, Peoples PR China
- Department of Respiratory Medicine, Huai’an First Peoples’s Hospital, Nanjing Medical UniversityNanjing, China
| | - Lei Xu
- Department of Respiratory Medicine, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai 200072, Peoples PR China
| | - Shuan-Shuan Xie
- Department of Respiratory Medicine, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai 200072, Peoples PR China
| | - Fei Yu
- Department of Nuclear Medicine, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai 200072, Peoples PR China
| | - Hai-Yang Hu
- Department of Geriatric Respiratory, Qianfoshan Hospital Affiliated to Shandong UniversityJinan 250014, Shandong, China
| | - Xiao-Lian Song
- Department of Respiratory Medicine, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai 200072, Peoples PR China
| | - Chang-Hui Wang
- Department of Respiratory Medicine, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai 200072, Peoples PR China
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Zhang Q, Yu S, Huang X, Tan Y, Zhu C, Wang YL, Wang H, Lin HY, Fu J, Wang H. New insights into the function of Cullin 3 in trophoblast invasion and migration. Reproduction 2015; 150:139-49. [PMID: 26021998 DOI: 10.1530/rep-15-0126] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/28/2015] [Indexed: 12/27/2022]
Abstract
Cullin 3 (CUL3), a scaffold protein, assembles a large number of ubiquitin ligase complexes, similar to Skp1-Cullin 1-F-box protein complex. Several genetic models have shown that CUL3 is crucial for early embryonic development. Nevertheless, the role of CUL3 in human trophoblast function remains unclear. In this study, immunostaining revealed that CUL3 was strongly expressed in the villous cytotrophoblasts, the trophoblast column, and the invasive extravillous trophoblasts. Silencing CUL3 significantly inhibited the outgrowth of villous explant ex vivo and decreased invasion and migration of trophoblast HTR8/SVneo cells. Furthermore, CUL3 siRNA decreased pro-MMP9 activity and increased the levels of TIMP1 and 2. We also found that the level of CUL3 in the placental villi from pre-eclamptic patients was significantly lower as compared to that from their gestational age-matched controls. Moreover, in the lentiviral-mediated placenta-specific CUL3 knockdown mice, lack of CUL3 resulted in less invasive trophoblast cells in the maternal decidua. Taken together, these results suggest an essential role for CUL3 in the invasion and migration of trophoblast cells, and dysregulation of its expression may be associated with the onset of pre-eclampsia.
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Affiliation(s)
- Qian Zhang
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Song Yu
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Xing Huang
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Yi Tan
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Cheng Zhu
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Yan-Ling Wang
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Haibin Wang
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Hai-Yan Lin
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Jiejun Fu
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Hongmei Wang
- State Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of ChinaDepartment of ObstetricsBeijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, People's Republic of ChinaKey Laboratory of Longevity and Ageing-related DiseasesMinistry of Education, Guangxi Medical University, Nanning 530021, People's Republic of ChinaLaboratory Animal CenterChongqing Medical University, Chongqing 400016, People's Republic of ChinaSchool of Life SciencesUniversity of Chinese Academy of Sciences, Beijing 100101, People's Republic of China
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Lei JH, Yang X, Peng S, Li Y, Underhill C, Zhu C, Lin HY, Wang H, Hammond GL. Impact of corticosteroid-binding globulin deficiency on pregnancy and neonatal sex. J Clin Endocrinol Metab 2015; 100:1819-27. [PMID: 25695888 DOI: 10.1210/jc.2014-4254] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Plasma corticosteroid-binding globulin (CBG) transports cortisol but high progesterone levels at the maternal-fetal interface can displace cortisol from its steroid-binding site. A secretion-deficient CBG mutant (A51V) in ∼1 of 36 Chinese causes low circulating CBG levels. OBJECTIVE Assess the implications of a CBG deficiency on pregnancy outcomes. PARTICIPANTS AND DESIGN From 1978 Chinese women screened at 12-16 weeks' gestation, 50 A51V carriers were identified and 46 were followed with 60 controls throughout pregnancy. Blood samples from another 2051 pregnant women were obtained at term to determine the secondary sex ratio (SSR) of newborns in an extended cohort (n = 101) of A51V mothers. OUTCOME MEASURES AND RESULTS Among women recruited at 12-16 weeks' gestation, serum CBG increased progressively during pregnancy but was lower (P < .0001) in heterozygous A51V carriers than controls. Two women homozygous for A51V had very low serum CBG but their pregnancies progressed normally. The A51V mothers did not differ from controls in body mass index, gestational age at delivery, duration of parturition, blood pressure, gravidity, infant birth weight and size, or placental weights, and reported no unusual clinical symptoms. Peripheral CBG and progesterone levels correlated (r = 0.459) during first and second trimesters. Progesterone levels were much higher in intervillous blood and correlated (r = 0.637) with CBG levels. A female-skewed SSR in newborns of A51V mothers (0.77) differed (P < .05) from the SSR (1.17) in a reference cohort. CONCLUSIONS CBG influences progesterone levels in peripheral blood and at the maternal-fetal interface. The female-skewed SSR suggests that male fetal survival is compromised in CBG-deficient mothers.
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Affiliation(s)
- Jing-Hui Lei
- State Key Laboratory of Reproductive Biology, Institute of Zoology (J.-H.L., C.Z., H.-Y.L., H.W.), Chinese Academy of Sciences, Beijing 100101, China; Department of Human Reproductive Medicine (X.Y., S.P., Y.L.), Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China; and Department of Cellular and Physiological Sciences, Faculty of Medicine (C.U., G.L.H.), the University of British Columbia, Vancouver V6T 1Z3, Canada
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