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Wang W, Qian J, Shang M, Qiao Y, Huang J, Gao X, Ye Z, Tong X, Xu K, Li X, Liu Z, Zhou L, Zheng S. Integrative analysis of the transcriptome and metabolome reveals the importance of hepatokine FGF21 in liver aging. Genes Dis 2024; 11:101161. [PMID: 39022127 PMCID: PMC11252782 DOI: 10.1016/j.gendis.2023.101161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/03/2023] [Accepted: 10/16/2023] [Indexed: 07/20/2024] Open
Abstract
Aging is a contributor to liver disease. Hence, the concept of liver aging has become prominent and has attracted considerable interest, but its underlying mechanism remains poorly understood. In our study, the internal mechanism of liver aging was explored via multi-omics analysis and molecular experiments to support future targeted therapy. An aged rat liver model was established with d-galactose, and two other senescent hepatocyte models were established by treating HepG2 cells with d-galactose and H2O2. We then performed transcriptomic and metabolomic assays of the aged liver model and transcriptome analyses of the senescent hepatocyte models. In livers, genes related to peroxisomes, fatty acid elongation, and fatty acid degradation exhibited down-regulated expression with aging, and the hepatokine Fgf21 expression was positively correlated with the down-regulation of these genes. In senescent hepatocytes, similar to the results found in aged livers, FGF21 expression was also decreased. Moreover, the expressions of cell cycle-related genes were significantly down-regulated, and the down-regulated gene E2F8 was the key cell cycle-regulating transcription factor. We then validated that FGF21 overexpression can protect against liver aging and that FGF21 can attenuate the declines in the antioxidant and regenerative capacities in the aging liver. We successfully validated the results from cellular and animal experiments using human liver and blood samples. Our study indicated that FGF21 is an important target for inhibiting liver aging and suggested that pharmacological prevention of the reduction in FGF21 expression due to aging may be used to treat liver aging-related diseases.
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Affiliation(s)
- Wenchao Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Junjie Qian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Mingge Shang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Yiting Qiao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Jiacheng Huang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Xinxin Gao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Zhou Ye
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Xinyu Tong
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Kangdi Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Xiang Li
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Zhengtao Liu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, Zhejiang 310015, China
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, Zhejiang 310000, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang 310003, China
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, Zhejiang 310000, China
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Wei C, Li X, Jin Y, Zhang Y, Yuan Q. Does the liver facilitate aging-related cognitive impairment: Conversation between liver and brain during exercise? J Cell Physiol 2024; 239:e31287. [PMID: 38704693 DOI: 10.1002/jcp.31287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/24/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024]
Abstract
Liver, an important regulator of metabolic homeostasis, is critical for healthy brain function. In particular, age-related neurodegenerative diseases seriously reduce the quality of life for the elderly. As population aging progresses rapidly, unraveling the mechanisms that effectively delay aging has become critical. Appropriate exercise is reported to improve aging-related cognitive impairment. Whereas current studies focused on exploring the effect of exercise on the aging brain itself, ignoring the persistent effects of peripheral organs on the brain through the blood circulation. The aim of this paper is to summarize the communication and aging processes of the liver and brain and to emphasize the metabolic mechanisms of the liver-brain axis about exercise ameliorating aging-related neurodegenerative diseases. A comprehensive understanding of the potential mechanisms about exercise ameliorating aging is critical for improving adaptation to age-related brain changes and formulating effective interventions against age-related cognitive decline.
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Affiliation(s)
- Changling Wei
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Xue Li
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yu Jin
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yuanting Zhang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Qiongjia Yuan
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
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Yu M, Lu L, Wu R. Perihilar cholangiocarcinoma resection: Is it beneficial for survival in elderly patients? GASTROENTEROLOGIA Y HEPATOLOGIA 2024; 47:691-701. [PMID: 37806347 DOI: 10.1016/j.gastrohep.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/25/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
INTRODUCTION As the population ages, surgeons are growing frequently faced with hard choices among a vast array of treatment options for the elderly. This study was to investigate safety and efficacy of resection in elderly patients with perihilar cholangiocarcinoma (PHCC). PATIENTS AND METHODS Literature reading and meta-analysis unveiled that elderly PHCC patients held a higher risk of death within 90 days after hepatectomy relative to younger patients, but their 5-year overall survival and disease-free survival were comparable. Among PHCC patients who underwent hepatectomy, the proportion of elderly patients with tumor classification Bismuth I-II and tumor stage pStage 1-3 was significantly higher than that of younger patients. RESULTS Curative resection R0 was more common in elderly patients than younger patients, but the difference was not statistically significant. Because of more comorbidities and less physiological reserve of elderly patients, they seemed to suffer more postoperative complications. CONCLUSION Considering improved life expectancy, it is crucial to treat elderly PHCC patients appropriately and attempts should be made to radical surgery based on comorbidities and functional status.
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Affiliation(s)
- Min Yu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China.
| | - Lina Lu
- Digestive Department, Jinhua Wenrong Hospital, Jinhua, China
| | - Rongjin Wu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
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Du K, Wang L, Jun JH, Dutta RK, Maeso-Díaz R, Oh SH, Ko DC, Diehl AM. Aging promotes metabolic dysfunction-associated steatotic liver disease by inducing ferroptotic stress. NATURE AGING 2024; 4:949-968. [PMID: 38918603 DOI: 10.1038/s43587-024-00652-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 05/17/2024] [Indexed: 06/27/2024]
Abstract
Susceptibility to the biological consequences of aging varies among organs and individuals. We analyzed hepatocyte transcriptomes of healthy young and aged male mice to generate an aging hepatocyte gene signature, used it to deconvolute transcriptomic data from humans and mice with metabolic dysfunction-associated liver disease, validated findings with functional studies in mice and applied the signature to transcriptomic data from other organs to determine whether aging-sensitive degenerative mechanisms are conserved. We discovered that the signature enriches in diseased livers in parallel with degeneration. It is also enriched in failing human hearts, diseased kidneys and pancreatic islets from individuals with diabetes. The signature includes genes that control ferroptosis. Aged mice develop more hepatocyte ferroptosis and liver degeneration than young mice when fed diets that induce metabolic stress. Inhibiting ferroptosis shifts the liver transcriptome of old mice toward that of young mice and reverses aging-exacerbated liver damage, identifying ferroptosis as a tractable, conserved mechanism for aging-related tissue degeneration.
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Affiliation(s)
- Kuo Du
- Department of Medicine, Duke University, Durham, NC, USA
| | - Liuyang Wang
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, USA
| | - Ji Hye Jun
- Department of Medicine, Duke University, Durham, NC, USA
| | - Rajesh K Dutta
- Department of Medicine, Duke University, Durham, NC, USA
| | | | - Seh Hoon Oh
- Department of Medicine, Duke University, Durham, NC, USA
| | - Dennis C Ko
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, USA
| | - Anna Mae Diehl
- Department of Medicine, Duke University, Durham, NC, USA.
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Liu MN, Lan Q, Wu H, Qiu CW. Rejuvenation of young blood on aging organs: Effects, circulating factors, and mechanisms. Heliyon 2024; 10:e32652. [PMID: 38994040 PMCID: PMC11237939 DOI: 10.1016/j.heliyon.2024.e32652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 06/06/2024] [Indexed: 07/13/2024] Open
Abstract
Aging causes degenerative changes in organs, leading to a decline in physical function. Over the past two decades, researchers have made significant progress in understanding the rejuvenating effects of young blood on aging organs, benefiting from heterochronic parabiosis models that connect the blood circulation of aged and young rodents. It has been discovered that young blood can partially rejuvenate organs in old animals by regulating important aging-related signaling pathways. Clinical trials have also shown the effectiveness of young blood in treating aging-related diseases. However, the limited availability of young blood poses a challenge to implementing anti-aging therapies on a large scale for older individuals. As a promising alternative, scientists have identified some specific anti-aging circulating factors in young blood that have been shown to promote organ regeneration, reduce inflammation, and alleviate fibrosis associated with aging in animal experiments. While previous reviews have focused primarily on the effects and mechanisms of circulating factors on aging, it is important to acknowledge that studying the rejuvenating effects and mechanisms of young blood has been a significant source of inspiration in this field, and it will continue to be in the future. In recent years, new findings have emerged, further expanding our knowledge in this area. This review aims to summarize the rejuvenating effects and mechanisms of young blood and circulating factors, discussing their similarities and connections, addressing discrepancies in previous studies, outlining future research directions, and highlighting the potential for clinical translation in anti-aging interventions.
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Affiliation(s)
- Meng-Nan Liu
- National Traditional Chinese Medicine Clinical Research Base, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China
| | - Qi Lan
- National Traditional Chinese Medicine Clinical Research Base, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China
| | - Hao Wu
- National Traditional Chinese Medicine Clinical Research Base, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, PR China
| | - Cai-Wei Qiu
- Research Center of Combine Traditional Chinese and Western Medicine, Prophylaxis and Treatment of Organ Fibrosis by Integrated Medicine of Luzhou Key Laboratory, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
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Kim DG, Hwang S, Kim JM, Choi Y, You YK, Choi D, Ryu JH, Kim BW, Kim DS, Cho JY, Ju MK, Kim TS, Nah YW, Lee JG, Kim MS, Joo DJ. Outcomes and Risk Factors for Liver Transplantation Using Graft-to-Recipient Weight Ratio Less Than 0.8 Graft From Living Donors: Multicentric Cohort Study. Ann Surg 2024; 279:1018-1024. [PMID: 37753651 DOI: 10.1097/sla.0000000000006104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
OBJECTIVE To compare graft survival after living donor liver transplantation (LDLT) in patients receiving graft-to-recipient weight ratio (GRWR) <0.8 versus GRWR≥0.8 grafts and identify risk factors for graft loss using GRWR<0.8 grafts. BACKGROUND Favorable outcomes after LDLT using GRWR<0.8 grafts were recently reported; however, these results have not been validated using multicenter data. METHODS This multicentric cohort study included 3450 LDLT patients. Graft survival was compared between 1:3 propensity score-matched groups and evaluated using various Cox models in the entire population. Risk factors for graft loss with GRWR<0.8 versus GRWR≥0.8 grafts were explored within various subgroups using interaction analyses, and outcomes were stratified according to the number of risk factors. RESULTS In total, 368 patients (10.7%) received GRWR<0.8 grafts (GRWR<0.8 group), whereas 3082 (89.3%) received GRWR≥0.8 grafts (GRWR≥0.8 group). The 5-year graft survival rate was significantly lower with GRWR<0.8 grafts than with GRWR≥0.8 grafts (85.2% vs 90.1%, P =0.013). Adjusted hazard ratio for graft loss using GRWR<0.8 grafts in the entire population was 1.66 (95% CI: 1.17-2.35, P =0.004). Risk factors exhibiting significant interactions with GRWR<0.8 for graft survival were age ≥60 years, Model for End-stage Liver Disease score ≥15, and male donor. When ≥2 risk factors were present, GRWR<0.8 grafts showed a higher risk of graft loss compared with GRWR≥0.8 graft in LDLT (hazard ratio 2.98, 95% CI: 1.79-4.88, P <0.001). CONCLUSIONS GRWR<0.8 graft showed inferior graft survival than controls (85.2% vs 90.1%), especially when ≥2 risk factors for graft loss (among age 60 years or above, Model for End-stage Liver Disease score ≥15, or male donor) were present.
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Affiliation(s)
- Deok-Gie Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Shin Hwang
- Department of Surgery, College of Medicine University of Ulsan, Asan Medical Center, Seoul, South Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - YoungRok Choi
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Young Kyoung You
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Donglak Choi
- Department of Surgery, Catholic University of Daegu, Daegu, South Korea
| | - Je Ho Ryu
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Pusan, South Korea
| | - Bong-Wan Kim
- Department of Hepato-Biliary-Pancreatic Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Dong-Sik Kim
- Department of Surgery, Division of HBP Surgery & Liver Transplantation, Korea
- University College of Medicine, Seoul, South Korea
| | - Jai Young Cho
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University college of Medicine, Seoul, South Korea
| | - Tae-Seok Kim
- Department of surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Yang Won Nah
- Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Jae Geun Lee
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Myoung Soo Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Dong Jin Joo
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
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Lin X, Shao YM, Zhang RQ, Aji T. Applying LASSO logistic regression for the prediction of biliary complications after ex vivo liver resection and autotransplantation in patients with end-stage hepatic alveolar echinococcosis. Eur J Med Res 2024; 29:301. [PMID: 38812045 PMCID: PMC11134669 DOI: 10.1186/s40001-024-01898-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/21/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND The purpose of this study was to explore the relevant risk factors associated with biliary complications (BCs) in patients with end-stage hepatic alveolar echinococcosis (HAE) following ex vivo liver resection and autotransplantation (ELRA) and to establish and visualize a nomogram model. METHODS This study retrospectively analysed patients with end-stage HAE who received ELRA treatment at the First Affiliated Hospital of Xinjiang Medical University between August 1, 2010 and May 10, 2023. The least absolute shrinkage and selection operator (LASSO) regression model was applied to optimize the feature variables for predicting the incidence of BCs following ELRA. Multivariate logistic regression analysis was used to develop a prognostic model by incorporating the selected feature variables from the LASSO regression model. The predictive ability, discrimination, consistency with the actual risk, and clinical utility of the candidate prediction model were evaluated using receiver operating characteristic (ROC) curves, calibration plots, and decision curve analysis (DCA). Internal validation was performed by the bootstrapping method. RESULTS The candidate prediction nomogram included predictors such as age, hepatic bile duct dilation, portal hypertension, and regular resection based on hepatic segments. The model demonstrated good discrimination ability and a satisfactory calibration curve, with an area under the ROC curve (AUC) of 0.818 (95% CI 0.7417-0.8958). According to DCA, this prediction model can predict the risk of BCs occurrence within a probability threshold range of 9% to 85% to achieve clinical net benefit. CONCLUSIONS A prognostic nomogram with good discriminative ability and high accuracy was developed and validated to predict BCs after ELRA in patients with end-stage HAE.
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Affiliation(s)
- Xin Lin
- Centre of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, Xinjiang, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi, 830000, Xinjiang, China
| | - Ying-Mei Shao
- Centre of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, Xinjiang, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi, 830000, Xinjiang, China
| | - Rui-Qing Zhang
- Centre of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, Xinjiang, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi, 830000, Xinjiang, China
| | - Tuerganaili Aji
- Centre of Digestive and Vascular Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, Xinjiang, China.
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi, 830000, Xinjiang, China.
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Matsuguma K, Hara T, Miyamoto D, Soyama A, Matsushima H, Fukumoto M, Imamura H, Yamashita M, Adachi T, Eguchi S. Improvement in aged liver regeneration using cell transplantation with chemically induced liver progenitors. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2024. [PMID: 38567454 DOI: 10.1002/jhbp.1425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
BACKGROUND A decrease in the regenerative capacity of age-damaged liver tissue has been reported. Liver progenitor cells may play an important role in the regeneration of injured livers. In the present study we aimed to investigate improvements in the regenerative capacity of age-damaged livers using chemically induced liver progenitors (CLiPs) derived from mature hepatocytes. METHODS Old (>90 weeks) and young (<20 weeks) mice underwent 70% hepatectomy, with or without trans-splenic CLiP administration. The residual liver/bodyweight (LW/BW) ratio was measured on postoperative days 1 and 7, and changes in liver regeneration and histology were evaluated. RESULTS At 7 days post-hepatectomy, LW/BW ratios were significantly better in CLiP-treated old mice than in untreated old mice (p = .02). By contrast, no effect of CLiP transplantation was observed in young mice (p = .62). Immunofluorescence staining of liver tissue after CLiP administration showed an increase in Ki67-positive cells (p < .01). Flow cytometry analysis of green fluorescent protein-labeled CLiPs indicated that transplanted CLiPs differentiated into mature hepatocytes and were present in the recipient liver. CONCLUSIONS CLiP transplantation appears to ameliorate the age-related decline in liver regeneration in mice.
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Affiliation(s)
- Kunihito Matsuguma
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takanobu Hara
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Daisuke Miyamoto
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Akihiko Soyama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hajime Matsushima
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Masayuki Fukumoto
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hajime Imamura
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mampei Yamashita
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomohiko Adachi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Li Y, Liu H, He C, Ma L. Comparison of transcriptome-wide N6-methyladenosine profiles from healthy trio families reveals regulator-mediated methylation alterations. Genetics 2024; 226:iyad206. [PMID: 38001375 DOI: 10.1093/genetics/iyad206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 09/19/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
The N6-methyladenosine (m6A) modification is a highly conserved RNA modification found in eukaryotic messenger RNAs (mRNAs). It plays a vital role in regulating various biological processes. Dysregulation of m6A modifications has been linked to a range of complex genetic diseases in humans. However, there has been a lack of comprehensive characterization and comparison of m6A modifications at the transcriptome-wide level within families. To address this gap, we profiled transcriptome-wide m6A methylation in 18 individuals across 6 Yoruba trio families. The m6A methylomes of these 18 individuals revealed that m6A modifications in children showed greater similarity to each other than to their parents. This suggests that m6A modifications are influenced by multiple factors rather than solely determined by genetic factors. Additionally, we found that mRNAs exhibiting m6A modifications specific to children were enriched in cell cycle control processes, while those with m6A modifications specific to parents were associated with chromatin modifications. Furthermore, our analysis on the interactions between differentially expressed m6A-related regulatory genes and age-related genes suggested that age might be one of the factors influencing m6A modifications. In summary, our study provided a valuable dataset that highlighted the differences and functional diversity of m6A modifications within and between trio families.
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Affiliation(s)
- Yini Li
- School of Life Sciences, Fudan University, 220 Handan Road, Shanghai 201100, China
- Westlake Laboratory of Life Sciences and Biomedicine, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang, China
- School of Life Sciences, Westlake University, 600 Dunyu Road, Hangzhou 310024, Zhejiang, China
| | - Hang Liu
- Westlake Laboratory of Life Sciences and Biomedicine, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang, China
- School of Life Sciences, Westlake University, 600 Dunyu Road, Hangzhou 310024, Zhejiang, China
| | - Chuan He
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
- Medical Scientist Training Program/Committee on Cancer Biology, The University of Chicago, Chicago, IL 60637, USA
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637, USA
| | - Lijia Ma
- Westlake Laboratory of Life Sciences and Biomedicine, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang, China
- School of Life Sciences, Westlake University, 600 Dunyu Road, Hangzhou 310024, Zhejiang, China
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10
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Cai Y, Xiong M, Xin Z, Liu C, Ren J, Yang X, Lei J, Li W, Liu F, Chu Q, Zhang Y, Yin J, Ye Y, Liu D, Fan Y, Sun S, Jing Y, Zhao Q, Zhao L, Che S, Zheng Y, Yan H, Ma S, Wang S, Izpisua Belmonte JC, Qu J, Zhang W, Liu GH. Decoding aging-dependent regenerative decline across tissues at single-cell resolution. Cell Stem Cell 2023; 30:1674-1691.e8. [PMID: 37898124 DOI: 10.1016/j.stem.2023.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 08/28/2023] [Accepted: 09/27/2023] [Indexed: 10/30/2023]
Abstract
Regeneration across tissues and organs exhibits significant variation throughout the body and undergoes a progressive decline with age. To decode the relationships between aging and regenerative capacity, we conducted a comprehensive single-cell transcriptome analysis of regeneration in eight tissues from young and aged mice. We employed diverse analytical models to study tissue regeneration and unveiled the intricate cellular and molecular mechanisms underlying the attenuated regenerative processes observed in aged tissues. Specifically, we identified compromised stem cell mobility and inadequate angiogenesis as prominent contributors to this age-associated decline in regenerative capacity. Moreover, we discovered a unique subset of Arg1+ macrophages that were activated in young tissues but suppressed in aged regenerating tissues, suggesting their important role in age-related immune response disparities during regeneration. This study provides a comprehensive single-cell resource for identifying potential targets for interventions aimed at enhancing regenerative outcomes in the aging population.
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Affiliation(s)
- Yusheng Cai
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Muzhao Xiong
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zijuan Xin
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Chengyu Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Jie Ren
- Key Laboratory of RNA Science and Engineering, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Aging Biomarker Consortium, China
| | - Xiying Yang
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of Anesthesiology, Weifang Medical University, Weifang 261053, China
| | - Jinghui Lei
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Wei Li
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Feifei Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Qun Chu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Yiyuan Zhang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Jian Yin
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Yanxia Ye
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Dingyi Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Yanling Fan
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
| | - Shuhui Sun
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Yaobin Jing
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Qian Zhao
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Liyun Zhao
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Shanshan Che
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yandong Zheng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Haoteng Yan
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Shuai Ma
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China; Aging Biomarker Consortium, China
| | - Si Wang
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Aging Biomarker Consortium, China
| | | | - Jing Qu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China; Aging Biomarker Consortium, China.
| | - Weiqi Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Aging Biomarker Consortium, China.
| | - Guang-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China; Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Aging Biomarker Consortium, China.
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11
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Bekheit M, Grundy L, Salih AK, Bucur P, Vibert E, Ghazanfar M. Post-hepatectomy liver failure: A timeline centered review. Hepatobiliary Pancreat Dis Int 2023; 22:554-569. [PMID: 36973111 DOI: 10.1016/j.hbpd.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 03/10/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND Post-hepatectomy liver failure (PHLF) is a leading cause of postoperative mortality after liver surgery. Due to its significant impact, it is imperative to understand the risk stratification and preventative strategies for PHLF. The main objective of this review is to highlight the role of these strategies in a timeline centered way around curative resection. DATA SOURCES This review includes studies on both humans and animals, where they addressed PHLF. A literature search was conducted across the Cochrane Library, Embase, MEDLINE/PubMed, and Web of Knowledge electronic databases for English language studies published between July 1997 and June 2020. Studies presented in other languages were equally considered. The quality of included publications was assessed using Downs and Black's checklist. The results were presented in qualitative summaries owing to the lack of studies qualifying for quantitative analysis. RESULTS This systematic review with 245 studies, provides insight into the current prediction, prevention, diagnosis, and management options for PHLF. This review highlighted that liver volume manipulation is the most frequently studied preventive measure against PHLF in clinical practice, with modest improvement in the treatment strategies over the past decade. CONCLUSIONS Remnant liver volume manipulation is the most consistent preventive measure against PHLF.
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Affiliation(s)
- Mohamed Bekheit
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK; Institute of Medical Sciences, Medical School, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK; Hépatica, Integrated Center of HPB Care, Elite Hospital, Agriculture Road, Alexandria, Egypt.
| | - Lisa Grundy
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
| | - Ahmed Ka Salih
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK; Institute of Medical Sciences, Medical School, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
| | - Petru Bucur
- Department of Surgery, University Hospital Tours, Val de la Loire 37000, France
| | - Eric Vibert
- Centre Hépatobiliaire, Paul Brousse Hospital, 12 Paul Valliant Couturier, 94804 Villejuif, France
| | - Mudassar Ghazanfar
- Department of Surgery, NHS Grampian, Foresterhill Health Campus, Ashgrove Road, AB252ZN Aberdeen, UK
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12
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Iakovleva V, Wuestefeld A, Ong ABL, Gao R, Kaya NA, Lee MY, Zhai W, Tam WL, Dan YY, Wuestefeld T. Mfap4: a promising target for enhanced liver regeneration and chronic liver disease treatment. NPJ Regen Med 2023; 8:63. [PMID: 37935709 PMCID: PMC10630300 DOI: 10.1038/s41536-023-00337-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 10/11/2023] [Indexed: 11/09/2023] Open
Abstract
The liver has a remarkable regenerative capacity. Nevertheless, under chronic liver-damaging conditions, this capacity becomes exhausted, allowing the accumulation of fibrotic tissue and leading to end-stage liver disease. Enhancing the endogenous regenerative capacity by targeting regeneration breaks is an innovative therapeutic approach. We set up an in vivo functional genetic screen to identify such regeneration breaks. As the top hit, we identified Microfibril associated protein 4 (Mfap4). Knockdown of Mfap4 in hepatocytes enhances cell proliferation, accelerates liver regeneration, and attenuates chronic liver disease by reducing liver fibrosis. Targeting Mfap4 modulates several liver regeneration-related pathways including mTOR. Our research opens the way to siRNA-based therapeutics to enhance hepatocyte-based liver regeneration.
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Affiliation(s)
- Viktoriia Iakovleva
- Laboratory of In Vivo Genetics and Gene Therapy, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Republic of Singapore
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Republic of Singapore
| | - Anna Wuestefeld
- Laboratory of In Vivo Genetics and Gene Therapy, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
| | - Agnes Bee Leng Ong
- Laboratory of In Vivo Genetics and Gene Therapy, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
| | - Rong Gao
- Laboratory of In Vivo Genetics and Gene Therapy, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
| | - Neslihan Arife Kaya
- Laboratory of Translational Cancer Biology, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
| | - May Yin Lee
- Laboratory of Translational Cancer Biology, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
| | - Weiwei Zhai
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, 650223, China
| | - Wai Leong Tam
- Laboratory of Translational Cancer Biology, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Republic of Singapore
| | - Yock Young Dan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Republic of Singapore
- Division of Gastroenterology and Hepatology, National University Health System, Singapore, 119074, Republic of Singapore
| | - Torsten Wuestefeld
- Laboratory of In Vivo Genetics and Gene Therapy, Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Singapore, 138672, Republic of Singapore.
- School of Biological Science, Nanyang University of Singapore, Singapore, 637551, Republic of Singapore.
- National Cancer Centre, Singapore, 169610, Republic of Singapore.
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13
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Qian H, Ding WX. SQSTM1/p62 and Hepatic Mallory-Denk Body Formation in Alcohol-Associated Liver Disease. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1415-1426. [PMID: 36906265 PMCID: PMC10642158 DOI: 10.1016/j.ajpath.2023.02.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/14/2023] [Accepted: 02/24/2023] [Indexed: 03/12/2023]
Abstract
Sequestosome 1 (SQSTM1/p62; hereafter p62) is an autophagy receptor protein for selective autophagy primarily due to its direct interaction with the microtubule light chain 3 protein that specifically localizes on autophagosome membranes. As a result, impaired autophagy leads to the accumulation of p62. p62 is also a common component of many human liver disease-related cellular inclusion bodies, such as Mallory-Denk bodies, intracytoplasmic hyaline bodies, α1-antitrypsin aggregates, as well as p62 bodies and condensates. p62 also acts as an intracellular signaling hub, and it involves multiple signaling pathways, including nuclear factor erythroid 2-related factor 2, NF-κB, and the mechanistic target of rapamycin, which are critical for oxidative stress, inflammation, cell survival, metabolism, and liver tumorigenesis. This review discusses the recent insights of p62 in protein quality control, including the role of p62 in the formation and degradation of p62 stress granules and protein aggregates as well as regulation of multiple signaling pathways in the pathogenesis of alcohol-associated liver disease.
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Affiliation(s)
- Hui Qian
- Department of Pharmacology, Toxicology, and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology, and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Department of Internal Medicine, The University of Kansas Medical Center, Kansas City, Kansas.
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14
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Kadokura K, Tomita T, Suruga K. Consumption of fish balls "tsumire" may help prevent liver function deterioration in aged rats. Nutr Health 2023; 29:383-387. [PMID: 36514304 DOI: 10.1177/02601060221142071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background: Possible health benefits of fish balls tsumire consumption on human health have been deduced based on the results of our earlier study investigating tsumire consumption by young (6-weeks-old) Sprague-Dawley rats. Aim: The objectives of this study were to evaluate the effect of tsumire intake on aged rats by feeding them a diet containing 5% dried tsumire. Methods: Biomarker levels and organ weight of 80-weeks-old Sprague-Dawley rats that were fed with tsumire were examined for potential health benefits. Results: Following 84 days of administering tsumire-containing diet, we found a decrease in some liver function parameters, such as the levels of AST, ALT, ALP and LAP, in the tsumire-fed rats compared to control rats provided with normal diet. In particular, significantly reduced LDH levels were observed in the experimental group. Conclusions: The results can be extrapolated to possible beneficial effects of consumption of tsumire on human health.
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Affiliation(s)
- Kazunari Kadokura
- Research & Development Division, Products Development Department, Kibun Foods Inc., Tokyo, Japan
| | - Tsuyoshi Tomita
- Research & Development Division, Products Development Department, Kibun Foods Inc., Tokyo, Japan
| | - Kohei Suruga
- Research & Development Division, Products Development Department, Kibun Foods Inc., Tokyo, Japan
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15
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Marongiu F, Cheri S, Laconi E. Clones of aging: When better fitness can be dangerous. Eur J Cell Biol 2023; 102:151340. [PMID: 37423036 DOI: 10.1016/j.ejcb.2023.151340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/29/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023] Open
Abstract
The biological and clinical significance of aberrant clonal expansions in aged tissues is being intensely discussed. Evidence is accruing that these clones often result from the normal dynamics of cell turnover in our tissues. The aged tissue microenvironment is prone to favour the emergence of specific clones with higher fitness partly because of an overall decline in cell intrinsic regenerative potential of surrounding counterparts. Thus, expanding clones in aged tissues need not to be mechanistically associated with the development of cancer, albeit this is a possibility. We suggest that growth pattern is a critical phenotypic attribute that impacts on the fate of such clonal proliferations. The acquisition of a better proliferative fitness, coupled with a defect in tissue pattern formation, could represent a dangerous mix setting the stage for their evolution towards neoplasia.
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Affiliation(s)
- Fabio Marongiu
- Department of Biomedical Sciences, University of Cagliari, Italy
| | - Samuele Cheri
- Department of Biomedical Sciences, University of Cagliari, Italy
| | - Ezio Laconi
- Department of Biomedical Sciences, University of Cagliari, Italy.
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16
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He Y, Wang S, Liu S, Qin D, Liu Z, Wang L, Chen X, Zhang L. MSL1 Promotes Liver Regeneration by Driving Phase Separation of STAT3 and Histone H4 and Enhancing Their Acetylation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301094. [PMID: 37279389 PMCID: PMC10427353 DOI: 10.1002/advs.202301094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/25/2023] [Indexed: 06/08/2023]
Abstract
Male-specific lethal 1 (MSL1) is critical for the formation of MSL histone acetyltransferase complex which acetylates histone H4 Lys16 (H4K16ac) to activate gene expression. However, the role of MSL1 in liver regeneration is poorly understood. Here, this work identifies MSL1 as a key regulator of STAT3 and histone H4 (H4) in hepatocytes. MSL1 forms condensates with STAT3 or H4 through liquid-liquid phase separation to enrich acetyl-coenzyme A (Ac-CoA), and Ac-CoA in turn enhances MSL1 condensate formation, synergetically promoting the acetylation of STAT3 K685 and H4K16, thus stimulating liver regeneration after partial hepatectomy (PH). Additionally, increasing Ac-CoA level can enhance STAT3 and H4 acetylation, thus promoting liver regeneration in aged mice. The results demonstrate that MSL1 condensate-mediated STAT3 and H4 acetylation play an important role in liver regeneration. Thus, promoting the phase separation of MSL1 and increasing Ac-CoA level may be a novel therapeutic strategy for acute liver diseases and transplantation.
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Affiliation(s)
- Yucheng He
- College of Veterinary Medicine/Bio‐medical CenterHuazhong Agricultural UniversityWuhanHubei430070China
| | - Shichao Wang
- College of Veterinary Medicine/Bio‐medical CenterHuazhong Agricultural UniversityWuhanHubei430070China
| | - Shenghui Liu
- College of Veterinary Medicine/Bio‐medical CenterHuazhong Agricultural UniversityWuhanHubei430070China
| | - Dan Qin
- College of Veterinary Medicine/Bio‐medical CenterHuazhong Agricultural UniversityWuhanHubei430070China
| | - Zhangmei Liu
- College of Veterinary Medicine/Bio‐medical CenterHuazhong Agricultural UniversityWuhanHubei430070China
| | - Liqiang Wang
- Department of NephrologyChinese PLA General HospitalChinese PLA Institute of NephrologyState Key Laboratory of Kidney DiseasesNational Clinical Research Center for Kidney Diseases28th Fuxing RoadBeijing100853China
| | - Xiangmei Chen
- Department of NephrologyChinese PLA General HospitalChinese PLA Institute of NephrologyState Key Laboratory of Kidney DiseasesNational Clinical Research Center for Kidney Diseases28th Fuxing RoadBeijing100853China
| | - Lisheng Zhang
- College of Veterinary Medicine/Bio‐medical CenterHuazhong Agricultural UniversityWuhanHubei430070China
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17
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Teker HT, Ceylani T, Keskin S, Samgane G, Mansuroglu S, Baba B, Allahverdi H, Acıkgoz E, Gurbanov R. Age-related differences in response to plasma exchange in male rat liver tissues: insights from histopathological and machine-learning assisted spectrochemical analyses. Biogerontology 2023:10.1007/s10522-023-10032-3. [PMID: 37017896 DOI: 10.1007/s10522-023-10032-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 03/27/2023] [Indexed: 04/06/2023]
Abstract
This study aimed to examine the biological effects of blood plasma exchange in liver tissues of aged and young rats using machine learning methods and spectrochemical and histopathological approaches. Linear Discriminant Analysis (LDA) and Support Vector Machine (SVM) were the machine learning algorithms employed. Young plasma was given to old male rats (24 months), while old plasma was given to young male rats (5 weeks) for thirty days. LDA (95.83-100%) and SVM (87.5-91.67%) detected significant qualitative changes in liver biomolecules. In old rats, young plasma infusion increased the length of fatty acids, triglyceride, lipid carbonyl, and glycogen levels. Nucleic acid concentration, phosphorylation, and carbonylation rates of proteins were also increased, whereas a decrease in protein concentration was measured. Aged plasma decreased protein carbonylation, triglyceride, and lipid carbonyl levels. Young plasma infusion improved hepatic fibrosis and cellular degeneration and reduced hepatic microvesicular steatosis in aged rats. Otherwise, old plasma infusion in young rats caused disrupted cellular organization, steatosis, and increased fibrosis. Young plasma administration increased liver glycogen accumulation and serum albumin levels. Aged plasma infusion raised serum ALT levels while diminished ALP concentrations in young rats, suggesting possible liver dysfunction. Young plasma increased serum albumin levels in old rats. The study concluded that young plasma infusion might be associated with declined liver damage and fibrosis in aged rats, while aged plasma infusion negatively impacted liver health in young rats. These results imply that young blood plasma holds potential as a rejuvenation therapy for liver health and function.
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Affiliation(s)
- Hikmet Taner Teker
- Department of Medical Biology and Genetics, Ankara Medipol University, Ankara, Turkey
| | - Taha Ceylani
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey
- Department of Food Quality Control and Analysis, Muş Alparslan University, Muş, Turkey
| | - Seda Keskin
- Department of Histology and Embryology, Van Yuzuncu Yil University, Van, Turkey
| | - Gizem Samgane
- Department of Bioengineering, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Sina Mansuroglu
- Department of Bioengineering, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Burcu Baba
- Department of Medical Biochemistry, Yüksek İhtisas University, Ankara, Turkey
| | - Huseyin Allahverdi
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey
| | - Eda Acıkgoz
- Department of Histology and Embryology, Van Yuzuncu Yil University, Van, Turkey
| | - Rafig Gurbanov
- Department of Bioengineering, Bilecik Şeyh Edebali University, Bilecik, Turkey.
- Central Research Laboratory, Bilecik Şeyh Edebali University, Bilecik, Turkey.
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18
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Wang J, Zhang W, Liu X, Kim M, Zhang K, Tsai RYL. Epigenome-wide analysis of aging effects on liver regeneration. BMC Biol 2023; 21:30. [PMID: 36782243 PMCID: PMC9926786 DOI: 10.1186/s12915-023-01533-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 02/01/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Aging is known to exert an effect on liver regeneration, with the ability of liver to regenerate displaying a significant decline over time. Liver physiological parameters such as liver volume, blood flow, and metabolism, as well as the ability to regenerate after injury have all been shown to decrease at old age in humans and model systems, with a number of molecular mechanisms proposed to be involved, including DNA methylation-dependent genome remodeling. To address how changes in DNA methylation mediate the adverse aging effect on liver regeneration, we searched for differentially methylated genomic regions (DMRs) in mouse livers co-regulated by aging and regeneration and determined their associated genes and enriched pathways. RESULTS DMRs were identified using whole-genome bisulfite sequencing (WGBS). Pathway analysis of aging DMR-mapped genes revealed two distinct phases of aging, 2-to-8 and 8-to-16 months old (m/o). Regenerative DMR-mapped differentially expressed genes (DEGs) were enriched in pathways controlling cell proliferation and differentiation. Most DMRs shared by both aging and regeneration changed in the same methylation direction between 2 and 8 m/o but in the opposite direction between 8 and 16 m/o. Regenerative DMRs inversely affected by aging during 8-to-16 m/o were found in the promoter/gene regions of 12 genes. Four regenerative DEGs were synchronously regulated by early aging and inversely regulated by mid-to-late aging DMRs. Lead DMR-mapped genes were validated by their expression profiles in liver aging and regeneration. CONCLUSIONS Our study has uncovered new DMRs and gene targets inversely affected by liver aging and regeneration to explain the adverse aging effect on liver regeneration. These findings will be of fundamental importance to understand the epigenomic changes underlying the biology of aging on liver regeneration.
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Affiliation(s)
- Junying Wang
- grid.412408.bInstitute of Biosciences and Technology, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA
| | - Wen Zhang
- grid.412408.bInstitute of Biosciences and Technology, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA
| | - Xiaoqin Liu
- grid.412408.bInstitute of Biosciences and Technology, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA
| | - Minjee Kim
- grid.412408.bInstitute of Biosciences and Technology, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA
| | - Ke Zhang
- grid.412408.bInstitute of Biosciences and Technology, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA ,grid.412408.bDepartment of Translational Medical Sciences, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA
| | - Robert Y. L. Tsai
- grid.412408.bInstitute of Biosciences and Technology, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA ,grid.412408.bDepartment of Translational Medical Sciences, Texas A&M Health Science Center, 2121 W. Holcombe Blvd, Houston, TX 77030 USA
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19
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Qian H, Chao X, Wang S, Li Y, Jiang X, Sun Z, Rülicke T, Zatloukal K, Ni HM, Ding WX. Loss of SQSTM1/p62 Induces Obesity and Exacerbates Alcohol-Induced Liver Injury in Aged Mice. Cell Mol Gastroenterol Hepatol 2023; 15:1027-1049. [PMID: 36754207 PMCID: PMC10036741 DOI: 10.1016/j.jcmgh.2023.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/31/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Alcohol-associated liver disease (ALD) is a worldwide health problem, of which the effective treatment is still lacking. Both detrimental and protective roles of adipose tissue have been implicated in ALD. Although alcohol increases adipose tissue lipolysis to promote alcohol-induced liver injury, alcohol also activates brown adipose tissue (BAT) thermogenesis as an adaptive response in protecting against alcohol-induced liver injury. Moreover, aging and obesity are also risk factors for ALD. In the present study, we investigated the effects of autophagy receptor protein SQSTM1/p62 on adipose tissue and obesity in alcohol-induced liver injury in both young and aged mice. METHODS Young and aged whole-body SQSTM1/p62 knockout (KO) and their age-matched wild-type (WT) mice were subjected to chronic plus binge (Gao-binge) alcohol feeding. Blood, adipose and liver tissues were collected for biochemical and histologic analysis. RESULTS Aged but not young SQSTM1/p62 KO mice had significantly increased body weight and fat mass compared with the matched WT mice. Gao-binge alcohol feeding induced white adipose atrophy and decreased levels of SQSTM1/p62 levels in adipose tissue in aged WT mice. SQSTM1/p62 KO aged mice were resistant to Gao-binge alcohol-induced white adipose atrophy. Alcohol feeding increased the expression of thermogenic genes in WT mouse BAT, which was significantly blunted in SQSTM1/p62 KO aged mice. Alcohol-fed aged SQSTM1/p62 KO mice showed significantly higher levels of serum alanine aminotransferase, hepatic triglyceride, and inflammation compared with young and aged WT mice fed with alcohol. Alcohol-fed SQSTM1/p62 KO mice also increased secretion of proinflammatory and angiogenic adipokines that may promote alcohol-induced liver injury. CONCLUSIONS Loss of SQSTM1/p62 in aged mice leads to obesity and impairs alcohol-induced BAT adaptation, resulting in exacerbated alcohol-induced liver injury in mice.
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Affiliation(s)
- Hui Qian
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Xiaojuan Chao
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Shaogui Wang
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Yuan Li
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Xiaoxiao Jiang
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Thomas Rülicke
- Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Kurt Zatloukal
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas; Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas.
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20
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He Y, Su Y, Duan C, Wang S, He W, Zhang Y, An X, He M. Emerging role of aging in the progression of NAFLD to HCC. Ageing Res Rev 2023; 84:101833. [PMID: 36565959 DOI: 10.1016/j.arr.2022.101833] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 12/10/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
With the aging of global population, the incidence of nonalcoholic fatty liver disease (NAFLD) has surged in recent decades. NAFLD is a multifactorial disease that follows a progressive course, ranging from simple fatty liver, nonalcoholic steatohepatitis (NASH) to liver cirrhosis and hepatocellular carcinoma (HCC). It is well established that aging induces pathological changes in liver and potentiates the occurrence and progression of NAFLD, HCC and other age-related liver diseases. Studies of senescent cells also indicate a pivotal engagement in the development of NAFLD via diverse mechanisms. Moreover, nicotinamide adenine dinucleotide (NAD+), silence information regulator protein family (sirtuins), and mechanistic target of rapamycin (mTOR) are three vital and broadly studied targets involved in aging process and NAFLD. Nevertheless, the crucial role of these aging-associated factors in aging-related NAFLD remains underestimated. Here, we reviewed the current research on the roles of aging, cellular senescence and three aging-related factors in the evolution of NAFLD to HCC, aiming at inspiring promising therapeutic targets for aging-related NAFLD and its progression.
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Affiliation(s)
- Yongyuan He
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yinghong Su
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengcheng Duan
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Siyuan Wang
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei He
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China; School of Basic Medicine, Kunming Medical University, China
| | - Yingting Zhang
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaofei An
- Department of Endocrinology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
| | - Ming He
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Pathology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China.
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21
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Nodular Regenerative Hyperplasia Is Not a Rare Condition After Liver Transplantation: Incidence, Predictive Factors, and Impact on Survival. Transplantation 2023; 107:410-419. [PMID: 36117256 DOI: 10.1097/tp.0000000000004303] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND The objectives of this study were to evaluate incidence and to identify the risk factors of occurrence and the predictive factors of symptomatic forms of nodular regenerative hyperplasia (NRH) after liver transplantation (LT). METHODS To identify risk factors of NRH following LT, we included 1648 patients transplanted from 2004 to 2018 and compared the patients developing NRH after LT to those who did not. To identify predictive factors of symptomatic NRH, we selected 115 biopsies displaying NRH and compared symptomatic to asymptomatic forms. Symptomatic NRH was defined as the presence of ascites, esophageal varices, hepatic encephalopathy, portal thrombosis, retransplantation, or death related to NRH. RESULTS The incidence of NRH following LT was 5.1%. In multivariate analysis, the independent factor of developing NRH after LT was the donor's age (odds ratio [OR] = 1.02; confidence interval, 1.01-1.03; P = 0.02). Symptomatic forms occurred in 29 (25.2%) patients: 19 (16.5%) patients presented with ascites, 13 (11.3%) with esophageal varices, 4 (3.5%) with hepatic encephalopathy, and 8 (7%) with portal thrombosis. The median period before the onset of symptoms was 8.4 (1.5-11.3) y after LT. The spleen size at diagnosis/before LT ratio (OR = 12.5; 114.17-1.37; P = 0.0252) and thrombectomy during transplantation (OR = 11.17; 1.48-84.11; P = 0.0192) were associated with symptomatic NRH in multivariate analysis. CONCLUSIONS NRH following LT is frequent (5.1%) and leads to symptomatic portal hypertension in 25.2% of patients. Using older grafts increases the risk of developing NRH after LT. Clinicians should screen for signs of portal hypertension, particularly in measuring spleen size.
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22
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Jiang S, Yu D, He H, Sun H, Sun Y, Zhou L, Wu Z, Gu Q. Short- and Long-Term Outcomes in Laparoscopic Versus Open Hepatectomy for Hepatocellular Carcinoma in Elderly Patients: A Systematic Review and Meta-Analysis. J Laparoendosc Adv Surg Tech A 2023; 33:321-334. [PMID: 36716177 DOI: 10.1089/lap.2022.0524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Background: Laparoscopic hepatectomy (LH) is considered a safe and feasible treatment for patients with hepatocellular carcinoma (HCC) in recent studies. However, in elderly patients, application of LH still remains controversial, and the outcomes of LH versus open hepatectomy (OH) have not been fully evaluated. Our objective is to compare the short- and long-term outcomes of LH with OH in elderly patients with HCC. Materials and Methods: All studies comparing LH and OH in elderly patients with HCC were systematically searched in the databases of PubMed, EmBase, and Web of Science. Statistical analysis was conducted using Review Manager 5.3 (Cochrane Collaboration, 2014). The last search was performed on March 20, 2022. Short-term outcomes include blood loss, operation time, blood transfusion, overall and major postoperative complications, mortality, hospital stay, tumor size, and surgical margin. Long-term outcomes include 1-, 3-, and 5-year overall survival (OS); 1-, 3-, and 5-year disease-free survival (DFS); and 1-, 3-, and 5-year recurrence-free survival (RFS). Results: Fourteen studies involving 1596 patients were included in this meta-analysis. The short-term outcomes of LH were a shorter postoperative hospital stay and fewer overall and major postoperative complications (all P < .00001). However, there were no significant differences in operation time, blood loss, blood transfusion rate, surgical margin, tumor size, and mortality. For the long-term outcomes, LH is comparable with OH in terms of 1-, 3-, and 5-year OS; 1-, 3-, and 5-year DFS; and 1-, 3-, and 5-year RFS. Conclusions: Compared with OH, LH is a safe and feasible treatment for elderly patients with HCC.
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Affiliation(s)
- Song Jiang
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Dong Yu
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Hongwei He
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Haijian Sun
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Yan Sun
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Longxiang Zhou
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Zhongxin Wu
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Qiyun Gu
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
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23
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Gieseler RK, Schreiter T, Canbay A. The Aging Human Liver: The Weal and Woe of Evolutionary Legacy. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2023; 61:83-94. [PMID: 36623546 DOI: 10.1055/a-1955-5297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Aging is characterized by the progressive decline of biological integrity and its compensatory mechanisms as well as immunological dysregulation. This goes along with an increasing risk of frailty and disease. Against this background, we here specifically focus on the aging of the human liver. For the first time, we shed light on the intertwining evolutionary underpinnings of the liver's declining regenerative capacity, the phenomenon of inflammaging, and the biotransformation capacity in the process of aging. In addition, we discuss how aging influences the risk for developing nonalcoholic fatty liver disease, hepatocellular carcinoma, and/or autoimmune hepatitis, and we describe chronic diseases as accelerators of biological aging.
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Affiliation(s)
- Robert K Gieseler
- Medizinische Klinik, Universitätsklinikum Knappschaftskrankenhaus Bochum GmbH, Bochum, Germany
| | - Thomas Schreiter
- Medizinische Klinik, Universitätsklinikum Knappschaftskrankenhaus Bochum GmbH, Bochum, Germany
| | - Ali Canbay
- Medizinische Klinik, Universitätsklinikum Knappschaftskrankenhaus Bochum GmbH, Bochum, Germany
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24
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Meng XQ, Miao H, Xia Y, Shen H, Qian Y, YanChen, Shen F, Guo J. A nomogram for predicting post-hepatectomy liver failure in patients with hepatocellular carcinoma based on spleen-volume-to-platelet ratio. Asian J Surg 2023; 46:399-404. [PMID: 35599113 DOI: 10.1016/j.asjsur.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/04/2022] [Accepted: 05/06/2022] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Post-hepatectomy liver failure (PHLF) is one of the most serious complications after hepatectomy in patients with hepatocellular carcinoma (HCC), and has an association with high morbidity and mortality. This study aimed to explore the risk factors of PHLF and to establish and validate a nomogram to predict PHLF. METHODS We retrospectively analyzed 971 HCC patients undergoing major liver resection at the Eastern Hepatobiliary Surgery Hospital between 2011 and 2016, and established a nomogram based on multivariate analyses for predicting PHLF. The predictive accuracy and discriminative ability of the nomogram were evaluated by concordance index (C-index) and calibration curve. The predictive ability of PHLF of this nomogram was compared with conventional models using receiver operating characteristic (ROC) curves. RESULTS The incidence of PHLF was 18.8%. Multivariate analysis identified age, BMI, preoperative ascites, preoperative prealbumin, spleen volume-to-platelet ratio, total bilirubin, and intraoperative blood loss as independent predictors of PHLF. The area under ROC curve (AUROC) of the predictive model was 0.668 and was higher than that of the albumin-bilirubin score (ALBI). The optimal cut-off value of the model was 124. CONCLUSIONS We constructed a nomogram for predicting PHLF based on risk factors. The nomogram can assist clinicians in identifying patients with high-risk PHLF, eventually facilitating earlier interventions and improving clinical outcomes.
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Affiliation(s)
- Xue-Qin Meng
- Department of Ultrasound, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Hui Miao
- Department of Medical Genetics, College of Basic Medical Science, Second Military Medical University, Shanghai, China
| | - Yong Xia
- Department of Hepatic Surgery IV, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, China
| | - Hao Shen
- Department of Hepatic Surgery IV, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, China
| | - Yi Qian
- Department of Ultrasound, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - YanChen
- Department of Ultrasound, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Feng Shen
- Department of Hepatic Surgery IV, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, China
| | - Jia Guo
- Department of Ultrasound, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Naval Medical University), Shanghai, China.
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25
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Sparrelid E, Olthof PB, Dasari BVM, Erdmann JI, Santol J, Starlinger P, Gilg S. Current evidence on posthepatectomy liver failure: comprehensive review. BJS Open 2022; 6:6840812. [PMID: 36415029 PMCID: PMC9681670 DOI: 10.1093/bjsopen/zrac142] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/21/2022] [Accepted: 10/03/2022] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Despite important advances in many areas of hepatobiliary surgical practice during the past decades, posthepatectomy liver failure (PHLF) still represents an important clinical challenge for the hepatobiliary surgeon. The aim of this review is to present the current body of evidence regarding different aspects of PHLF. METHODS A literature review was conducted to identify relevant articles for each topic of PHLF covered in this review. The literature search was performed using Medical Subject Heading terms on PubMed for articles on PHLF in English until May 2022. RESULTS Uniform reporting on PHLF is lacking due to the use of various definitions in the literature. There is no consensus on optimal preoperative assessment before major hepatectomy to avoid PHLF, although many try to estimate future liver remnant function. Once PHLF occurs, there is still no effective treatment, except liver transplantation, where the reported experience is limited. DISCUSSION Strict adherence to one definition is advised when reporting data on PHLF. The use of the International Study Group of Liver Surgery criteria of PHLF is recommended. There is still no widespread established method for future liver remnant function assessment. Liver transplantation is currently the only effective way to treat severe, intractable PHLF, but for many indications, this treatment is not available in most countries.
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Affiliation(s)
- Ernesto Sparrelid
- Department of Clinical Science, Intervention and Technology, Division of Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Pim B Olthof
- Department of Surgery, Erasmus MC, Rotterdam, The Netherlands.,Department of Surgery, Amsterdam UMC, Amsterdam, The Netherlands
| | - Bobby V M Dasari
- Department of HPB Surgery and Liver Transplantation, Queen Elizabeth Hospital, Birmingham, UK.,University of Birmingham, Birmingham, UK
| | - Joris I Erdmann
- Department of Surgery, Amsterdam UMC, Amsterdam, The Netherlands
| | - Jonas Santol
- Department of Surgery, HPB Center, Viennese Health Network, Clinic Favoriten and Sigmund Freud Private University, Vienna, Austria.,Department of Vascular Biology and Thrombosis Research, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Patrick Starlinger
- Division of General Surgery, Department of Surgery, Medical University of Vienna, General Hospital of Vienna, Vienna, Austria.,Department of Surgery, Division of Hepatobiliary and Pancreas Surgery, Mayo Clinic, Rochester, New York, USA
| | - Stefan Gilg
- Department of Clinical Science, Intervention and Technology, Division of Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
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26
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Nie YZ, Zheng YW, Taniguchi H. Improving the repopulation capacity of elderly human hepatocytes by decoding aging-associated hepatocyte plasticity. Hepatology 2022; 76:1030-1045. [PMID: 35243665 DOI: 10.1002/hep.32443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/15/2022] [Accepted: 03/01/2022] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND AIMS The loss of liver regenerative capacity is the most dramatic age-associated alteration. Because of an incomplete mechanistic understanding of the liver aging process, a successful therapeutic strategy to improve liver regeneration in the elderly has not been developed so far. Hepatocyte plasticity is a principal mechanism for producing new hepatocytes and cholangiocytes during regeneration. This study aims to promote the repopulation capacity of elderly hepatocytes by decoding the underlying mechanism about the regulation of aging on human hepatocyte plasticity. APPROACH AND RESULTS To understand the age-related mechanisms, we established a hepatocyte aging model from human-induced pluripotent stem cells and developed a method for ex vivo characterization of hepatocyte plasticity. We found that hepatocyte plasticity was gradually diminished with aging, and the impaired plasticity was caused by age-induced histone hypoacetylation. Notably, selective inhibition of histone deacetylases could markedly restore aging-impaired plasticity. Based on these findings, we successfully improved the plasticity of elderly primary human hepatocytes that enhanced their repopulation capacity in the liver injury model. CONCLUSIONS This study suggests that age-induced histone hypoacetylation impairs hepatocyte plasticity, and hepatocyte plasticity might be a therapeutic target for promoting the regenerative capacity of the elderly liver.
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Affiliation(s)
- Yun-Zhong Nie
- Department of Regenerative Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.,Division of Regenerative Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Yun-Wen Zheng
- Department of Regenerative Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.,Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Heath Sciences, Wuyi University, Jiangmen, Guangdong, China.,Department of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan.,Institute of Regenerative Medicine, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hideki Taniguchi
- Department of Regenerative Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.,Division of Regenerative Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan.,Advanced Medical Research Center, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
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27
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Mettl3-mediated mRNA m 6A modification controls postnatal liver development by modulating the transcription factor Hnf4a. Nat Commun 2022; 13:4555. [PMID: 35931692 PMCID: PMC9355946 DOI: 10.1038/s41467-022-32169-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/18/2022] [Indexed: 11/18/2022] Open
Abstract
Hepatic specification and functional maturation are tightly controlled throughout development. N6-methyladenosine (m6A) is the most abundant RNA modification of eukaryotic mRNAs and is involved in various physiological and pathological processes. However, the function of m6A in liver development remains elusive. Here we dissect the role of Mettl3-mediated m6A modification in postnatal liver development and homeostasis. Knocking out Mettl3 perinatally with Alb-Cre (Mettl3 cKO) induces apoptosis and steatosis of hepatocytes, results in severe liver injury, and finally leads to postnatal lethality within 7 weeks. m6A-RIP sequencing and RNA-sequencing reveal that mRNAs of a series of crucial liver-enriched transcription factors are modified by m6A, including Hnf4a, a master regulator for hepatic parenchymal formation. Deleting Mettl3 reduces m6A modification on Hnf4a, decreases its transcript stability in an Igf2bp1-dependent manner, and down-regulates Hnf4a expression, while overexpressing Hnf4a with AAV8 alleviates the liver injury and prolongs the lifespan of Mettl3 cKO mice. However, knocking out Mettl3 in adults using Alb-CreERT2 does not affect liver homeostasis. Our study identifies a dynamic role of Mettl3-mediated RNA m6A modification in liver development. m6A is the most abundant RNA modification of eukaryotic mRNAs and is involved in various physiological and pathological processes. Here the authors show a role for Mettl3-mediated RNA m6A modification in postnatal liver development by regulating the Hnf4a-centered transcriptional network
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28
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Liver Regeneration: Changes in Oxidative Stress, Immune System, Cytokines, and Epigenetic Modifications Associated with Aging. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9018811. [PMID: 35936214 PMCID: PMC9352489 DOI: 10.1155/2022/9018811] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 05/25/2022] [Accepted: 06/29/2022] [Indexed: 01/10/2023]
Abstract
The regenerative capacity of the liver decreases with increase in age. In recent years, studies in mice have found that the regenerative capacity of the liver is associated with changes in the immune system of the liver, cytokines in the body, aging-related epigenetic modifications in the cell, and intracellular signaling pathways. In the immune system of the aging liver, monocytes and macrophages play an important role in tissue repair. During tissue repair, monocytes and macrophages undergo a series of functional and phenotypic changes to initiate and maintain tissue repair. Studies have discovered that knocking out macrophages in the liver during the repair phase results in significant impairment of liver regeneration. Furthermore, as the body ages, the secretion and function of cytokines undergo a series of changes. For example, the levels of interleukin-6, transforming growth factor-alpha, hepatocyte growth factor, and vascular endothelial growth factor undergo changes that alter hepatocyte regulation, thereby affecting its proliferation. In addition, body aging is accompanied by cellular aging, which leads to changes in gene expression and epigenetic modifications. Additionally, this in turn causes alterations in cell function, morphology, and division and affects the regenerative capacity of the liver. As the body ages, the activity of associated functional proteins, such as CCAAT-enhancer-binding proteins, p53, and switch/sucrose nonfermentable complex, changes in the liver, leading to alterations in several signaling pathways, such as the Hippo, PI3K-Akt, mTOR, and STAT3 pathways. Therefore, in recent years, research on aging and liver regeneration has primarily focused on the immune system, signaling pathways, epigenetic changes of senescent cells, and cytokine secretion in the liver. Hence, this review details the roles of these influencing factors in liver regeneration and impact of aging-related factors.
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Tomiyama T, Yamamoto T, Takahama S, Toshima T, Itoh S, Harada N, Shimokawa M, Okuzaki D, Mori M, Yoshizumi T. Up-regulated LRRN2 expression as a marker for graft quality in living donor liver transplantation. Hepatol Commun 2022; 6:2836-2849. [PMID: 35894759 PMCID: PMC9512467 DOI: 10.1002/hep4.2033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/24/2022] [Accepted: 06/12/2022] [Indexed: 12/07/2022] Open
Abstract
The quality and size of liver grafts are critical factors that influence living‐donor liver transplantation (LDLT) function and safety. However, the biomarkers used for predicting graft quality are lacking. In this study, we sought to identify unique graft quality markers, aside from donor age, by using the livers of non‐human primates. Hepatic gene microarray expression data from young and elderly cynomolgus macaques revealed a total of 271 genes with significantly increased expression in the elderly. These candidate genes were then narrowed down to six through bioinformatics analyses. The expression patterns of these candidate genes in human donor liver tissues were subsequently examined. Importantly, we found that grafts exhibiting up‐regulated expression of these six candidate genes were associated with an increased incidence of liver graft failure. Multivariable analysis further revealed that up‐regulated expression of LRRN2 (encoding leucine‐rich repeat protein, neuronal 2) in donor liver tissue served as an independent risk factor for graft failure (odds ratio 4.50, confidence interval 2.08–9.72). Stratification based on graft expression of LRRN2 and donor age was also significantly associated with 6‐month graft survival rates. Conclusion: Up‐regulated LRRN2 expression of liver graft is significantly correlated with graft failure in LDLT. In addition, combination of graft LRRN2 expression and donor age may represent a promising marker for predicting LDLT graft quality.
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Affiliation(s)
- Takahiro Tomiyama
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takuya Yamamoto
- Laboratory of Immunosenescence, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.,Laboratory of Aging and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Department of Virology and Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shokichi Takahama
- Laboratory of Immunosenescence, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Takeo Toshima
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinji Itoh
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noboru Harada
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mototsugu Shimokawa
- Department of Biostatistics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Daisuke Okuzaki
- Single Cell Genomics, Human Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan.,Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
| | - Masaki Mori
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoharu Yoshizumi
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Yeow M, Ning Qi P, Muthiah MD, Soon G, Yock-Young D, Bonney GK, Iyer SG, Madhavan K, Kow WCA. Impact of donor age on recipient morbidity and mortality after living donor liver transplantation. ANZ J Surg 2022; 92:1867-1872. [PMID: 35779018 DOI: 10.1111/ans.17877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 05/04/2022] [Accepted: 06/17/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Evidence for use of graft from older donors in living donor liver transplantation (LDLT) has been conflicting. This study aims to clarify the impact of donor age on recipient morbidity and mortality after adult LDLT. METHODS A total of 90 live liver donors and recipients who underwent primary adult-to-adult LDLT were divided into three groups according to donor age: donors in 20s (D-20s) group, donors in 30s and 40s (D-30s and 40s) group and donors in 50s & 60s (D-50s and 60s) group. Multivariate analyses were conducted to look for independent risk/prognostic factors. Donor age was analysed as a continuous variable to determine an optimal cut off. RESULTS Overall donor morbidity was 4/90 (4.44%), major donor morbidity was 1/90 (1.11%) and there was no donor mortality. Recipients in the D-20s group had better 1-, 3- and 5-year recipient survival than recipients in the D-50s and 60s group (96%, 91%, 91% versus 73%, 58%, 58%, respectively) (P = 0.020). Donor age was identified to be an independently significant risk factor for increased major complications (P = 0.007) and prognostic factor for reduced overall survival (P = 0.014). The optimal donor age cut off was determined to be 46.5 years old. CONCLUSION Older donors are associated with poorer recipient outcomes after adult-to-adult LDLT. Usage of liver grafts from older donors should be carefully considered when choosing liver grafts for patients undergoing LDLT.
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Affiliation(s)
- Marcus Yeow
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Pang Ning Qi
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, University Surgical Cluster, National University Health System, Singapore.,National University Centre for Organ Transplantation, National University Hospital, Singapore
| | - Mark D Muthiah
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Division of Gastroenterology and Hepatology, National University Hospital, Singapore
| | - Gwyneth Soon
- Department of Pathology, National University Hospital, National University Health System, Singapore
| | - Dan Yock-Young
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Division of Gastroenterology and Hepatology, National University Hospital, Singapore
| | - Glenn Kunnath Bonney
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, University Surgical Cluster, National University Health System, Singapore.,National University Centre for Organ Transplantation, National University Hospital, Singapore
| | - Shridhar Ganpathi Iyer
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, University Surgical Cluster, National University Health System, Singapore.,National University Centre for Organ Transplantation, National University Hospital, Singapore
| | - Krishnakumar Madhavan
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, University Surgical Cluster, National University Health System, Singapore.,National University Centre for Organ Transplantation, National University Hospital, Singapore
| | - Wei Chieh Alfred Kow
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, University Surgical Cluster, National University Health System, Singapore.,National University Centre for Organ Transplantation, National University Hospital, Singapore
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Zhao Y, Yang Y, Li Q, Li J. Understanding the Unique Microenvironment in the Aging Liver. Front Med (Lausanne) 2022; 9:842024. [PMID: 35280864 PMCID: PMC8907916 DOI: 10.3389/fmed.2022.842024] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 01/31/2022] [Indexed: 12/21/2022] Open
Abstract
In the past decades, many studies have focused on aging because of our pursuit of longevity. With lifespans extended, the regenerative capacity of the liver gradually declines due to the existence of aging. This is partially due to the unique microenvironment in the aged liver, which affects a series of physiological processes. In this review, we summarize the related researches in the last decade and try to highlight the aging-related alterations in the aged liver.
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Affiliation(s)
- Yalei Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ya Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, College of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Qian Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, College of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Jianzhou Li
- Department of Infectious Diseases, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- *Correspondence: Jianzhou Li
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Maeso‐Díaz R, Dalton GD, Oh S, Du K, Tang L, Chen T, Dutta RK, Hartman JH, Meyer JN, Diehl A. Aging reduces liver resiliency by dysregulating Hedgehog signaling. Aging Cell 2022; 21:e13530. [PMID: 34984806 PMCID: PMC8844109 DOI: 10.1111/acel.13530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/02/2021] [Accepted: 11/28/2021] [Indexed: 11/30/2022] Open
Abstract
Older age is a major risk factor for damage to many tissues, including liver. Aging undermines resiliency and impairs liver regeneration. The mechanisms whereby aging reduces resiliency are poorly understood. Hedgehog is a signaling pathway with critical mitogenic and morphogenic functions during development. Recent studies indicate that Hedgehog regulates metabolic homeostasis in adult liver. The present study evaluates the hypothesis that Hedgehog signaling becomes dysregulated in hepatocytes during aging, resulting in decreased resiliency and therefore, impaired regeneration and enhanced vulnerability to damage. Partial hepatectomy (PH) was performed on young and old wild‐type mice and Smoothened (Smo)‐floxed mice treated with viral vectors to conditionally delete Smo and disrupt Hedgehog signaling specifically in hepatocytes. Changes in signaling were correlated with changes in regenerative responses and compared among groups. Old livers had fewer hepatocytes proliferating after PH. RNA sequencing identified Hedgehog as a top downregulated pathway in old hepatocytes before and after the regenerative challenge. Deleting Smo in young hepatocytes before PH prevented Hedgehog pathway activation after PH and inhibited regeneration. Gene Ontogeny analysis demonstrated that both old and Smo‐deleted young hepatocytes had activation of pathways involved in innate immune responses and suppression of several signaling pathways that control liver growth and metabolism. Hedgehog inhibition promoted telomere shortening and mitochondrial dysfunction in hepatocytes, consequences of aging that promote inflammation and impair tissue growth and metabolic homeostasis. Hedgehog signaling is dysregulated in old hepatocytes. This accelerates aging, resulting in decreased resiliency and therefore, impaired liver regeneration and enhanced vulnerability to damage.
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Affiliation(s)
- Raquel Maeso‐Díaz
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - George D. Dalton
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - Sehhoon Oh
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - Kuo Du
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - Linda Tang
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - Tianyi Chen
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - Rajesh K. Dutta
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
| | - Jessica H. Hartman
- Nicholas School of the Environment Duke University Durham North Carolina USA
| | - Joel N. Meyer
- Nicholas School of the Environment Duke University Durham North Carolina USA
| | - Anna Mae Diehl
- Division of Gastroenterology Department of Medicine Duke University Health System Durham North Carolina USA
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Naguib R, Fayed A, Elkemary E, Naguib H. Serum Ghrelin Concentration in Patients With Primary Biliary Cirrhosis (PBC). Cureus 2021; 13:e20288. [PMID: 34912653 PMCID: PMC8664358 DOI: 10.7759/cureus.20288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2021] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION The appetite-modulating hormone ghrelin may have a role in the etiology of anorexia which is a serious concern in patients with primary biliary cirrhosis (PBC). This study aims to assess the difference in ghrelin level between cases of PBC and healthy controls matched for age and gender, and to evaluate the level of ghrelin in relation to clinical and laboratory findings among cases. METHODS Twenty patients with primary biliary cirrhosis and 30 healthy controls matched by gender and age were recruited. The severity of liver disease was determined using the Child-Pugh grading system. Clinical comorbidities such as a history of ascites, gastrointestinal bleeding, and encephalopathy were evaluated. A commercial enzyme-linked immunosorbent assay was used to measure total ghrelin. Results: PBC cases had a significantly higher average level of ghrelin (2305.3 ± 639.4) pg/mL compared to controls (682 ± 197.3) pg/mL. Furthermore, the minimum reported level in cases was 1258 pg/mL compared to 326 pg/mL in controls, while the maximum level nearly tripled the control's maximum level. In PBC patients, plasma levels of total ghrelin showed a weak positive correlation with age, an inverse correlation with body mass index, and were not associated with gender. The level was significantly higher than those in the controls. Ghrelin was associated with the severity of cirrhosis. Levels of serum ghrelin were higher in patients with associated comorbidities such as a history of ascites, gastrointestinal bleeding, and encephalopathy. CONCLUSIONS Our study demonstrated elevated serum ghrelin levels in patients with primary biliary cirrhosis. Serum ghrelin was associated with the degree of severity and the presence of related comorbidities. Patients with primary biliary cirrhosis remain anorexic and catabolic despite elevated ghrelin levels, suggesting tissue resistance to this anabolic peptide which could be crucial to understanding anorexia and cachexia in primary biliary cirrhosis.
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Affiliation(s)
- Rania Naguib
- Clinical Science Department, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, SAU.,Endocrinology Unit, Internal Medicine Department, Faculty of Medicine, Alexandria University, Alexandria, EGY
| | - Amel Fayed
- Clinical Science Department, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, SAU
| | - Eman Elkemary
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, EGY
| | - Hend Naguib
- Hepatology Unit, Internal Medicine Department, Faculty of Medicine, Alexandria University, Alexandria, EGY
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Abstract
Significance: During aging, excessive production of reactive species in the liver leads to redox imbalance with consequent oxidative damage and impaired organ homeostasis. Nevertheless, slight amounts of reactive species may modulate several transcription factors, acting as second messengers and regulating specific signaling pathways. These redox-dependent alterations may impact the age-associated decline in liver regeneration. Recent Advances: In the last few decades, relevant findings related to redox alterations in the aging liver were investigated. Consistently, recent research broadened understanding of redox modifications and signaling related to liver regeneration. Other than reporting the effect of oxidative stress, epigenetic and post-translational modifications, as well as modulation of specific redox-sensitive cellular signaling, were described. Among them, the present review focuses on Wnt/β-catenin, the nuclear factor (erythroid-derived 2)-like 2 (NRF2), members of the Forkhead box O (FoxO) family, and the p53 tumor suppressor. Critical Issues: Even though alteration in redox homeostasis occurs both in aging and in impaired liver regeneration, the associative mechanisms are not clearly defined. Of note, antioxidants are not effective in slowing hepatic senescence, and do not clearly improve liver repopulation after hepatectomy or transplant in humans. Future Directions: Further investigations are needed to define mutual redox-dependent molecular pathways involved both in aging and in the decline of liver regeneration. Preclinical studies aimed at the characterization of these pathways would define possible therapeutic targets for human trials. Antioxid. Redox Signal. 35, 832-847.
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Affiliation(s)
- Francesco Bellanti
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Gianluigi Vendemiale
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
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Aging and Cancer: The Waning of Community Bonds. Cells 2021; 10:cells10092269. [PMID: 34571918 PMCID: PMC8468626 DOI: 10.3390/cells10092269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 12/15/2022] Open
Abstract
Cancer often arises in the context of an altered tissue landscape. We argue that a major contribution of aging towards increasing the risk of neoplastic disease is conveyed through effects on the microenvironment. It is now firmly established that aged tissues are prone to develop clones of altered cells, most of which are compatible with a normal histological appearance. Such increased clonogenic potential results in part from a generalized decrease in proliferative fitness, favoring the emergence of more competitive variant clones. However, specific cellular genotypes can emerge with reduced cooperative and integrative capacity, leading to disruption of tissue architecture and paving the way towards progression to overt neoplastic phenotypes.
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Große-Segerath L, Lammert E. Role of vasodilation in liver regeneration and health. Biol Chem 2021; 402:1009-1019. [PMID: 33908220 DOI: 10.1515/hsz-2021-0155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/12/2021] [Indexed: 12/14/2022]
Abstract
Recently, we have shown that an enhanced blood flow through the liver triggers hepatocyte proliferation and thereby liver growth. In this review, we first explain the literature on hepatic blood flow and its changes after partial hepatectomy (PHx), before we present the different steps of liver regeneration that take place right after the initial hemodynamic changes induced by PHx. Those parts of the molecular mechanisms governing liver regeneration, which are directly associated with the hepatic vascular system, are subsequently reviewed. These include β1 integrin-dependent mechanotransduction in liver sinusoidal endothelial cells (LSECs), triggering mechanically-induced activation of the vascular endothelial growth factor receptor-3 (VEGFR3) and matrix metalloproteinase-9 (MMP9) as well as release of growth-promoting angiocrine signals. Finally, we speculate how advanced age and obesity negatively affect the hepatic vasculature and thus liver regeneration and health, and we conclude our review with some recent technical progress in the clinic that employs liver perfusion. In sum, the mechano-elastic properties and alterations of the hepatic vasculature are key to better understand and influence liver health, regeneration, and disease.
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Affiliation(s)
- Linda Große-Segerath
- Institute of Metabolic Physiology, Heinrich Heine University, D-40225 Düsseldorf, Germany
- Institute for Vascular and Islet Cell Biology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, D-40225 Düsseldorf, Germany
- German Center for Diabetes Research (DZD e.V.), Helmholtz Zentrum München, D-85764 Neuherberg, Germany
| | - Eckhard Lammert
- Institute of Metabolic Physiology, Heinrich Heine University, D-40225 Düsseldorf, Germany
- Institute for Vascular and Islet Cell Biology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, D-40225 Düsseldorf, Germany
- German Center for Diabetes Research (DZD e.V.), Helmholtz Zentrum München, D-85764 Neuherberg, Germany
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The bright side of fibroblasts: molecular signature and regenerative cues in major organs. NPJ Regen Med 2021; 6:43. [PMID: 34376677 PMCID: PMC8355260 DOI: 10.1038/s41536-021-00153-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 07/22/2021] [Indexed: 02/07/2023] Open
Abstract
Fibrosis is a pathologic process characterized by the replacement of parenchymal tissue by large amounts of extracellular matrix, which may lead to organ dysfunction and even death. Fibroblasts are classically associated to fibrosis and tissue repair, and seldom to regeneration. However, accumulating evidence supports a pro-regenerative role of fibroblasts in different organs. While some organs rely on fibroblasts for maintaining stem cell niches, others depend on fibroblast activity, particularly on secreted molecules that promote cell adhesion, migration, and proliferation, to guide the regenerative process. Herein we provide an up-to-date overview of fibroblast-derived regenerative signaling across different organs and discuss how this capacity may become compromised with aging. We further introduce a new paradigm for regenerative therapies based on reverting adult fibroblasts to a fetal/neonatal-like phenotype.
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Liu Q, Chen F, Yang T, Su J, Song S, Fu ZR, Li Y, Hu YP, Wang MJ. Aged-related Function Disorder of Liver is Reversed after Exposing to Young Milieu via Conversion of Hepatocyte Ploidy. Aging Dis 2021; 12:1238-1251. [PMID: 34341705 PMCID: PMC8279529 DOI: 10.14336/ad.2020.1227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/27/2020] [Indexed: 12/13/2022] Open
Abstract
Previous study showed that senescent hepatocytes from aged liver could be rejuvenated after repopulated in the young recipient liver. The proliferative capacity of hepatocytes was restored with the senescence reversal. However, it is unknown whether metabolic and homeostatic function of aged liver, as well as age-dependent liver steatosis could be rejuvenated or alleviated. Here, we found that senescent hepatocytes from aged liver were rejuvenated after exposing to young blood. An autonomous proliferation of senescent hepatocytes which resulting in ploidy reversal might be the underlying mechanism of senescent reversal. After performing 2/3 partial hepatectomy (2/3PHx) in young blood exposed old liver, delayed DNA synthesis of senescent hepatocytes was rescued and the number of BrdU positive hepatocytes was restored from 4.39±2.30% to 17.85±3.21%, similarly to that in the young mice at 36 hours post 2/3PHx. Moreover, Cyclin A2 and Cyclin E1 overexpression of hepatocytes in aged liver facilitating the G1/S phase transition was contributed to enhance liver regeneration. Furthermore, lipid droplet spread widely in the elderly human liver and old mouse liver, but this aged-associated liver steatosis was alleviated as senescence reversal. Collectively, our study provides new thoughts for effectively preventing age-related liver diseases.
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Affiliation(s)
- Qinggui Liu
- 1Department of Cell Biology, Center for stem cell and Medicine, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Fei Chen
- 1Department of Cell Biology, Center for stem cell and Medicine, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Tao Yang
- 1Department of Cell Biology, Center for stem cell and Medicine, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Jing Su
- 1Department of Cell Biology, Center for stem cell and Medicine, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Shaohua Song
- 2Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Zhi-Ren Fu
- 2Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Yao Li
- 3State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Yi-Ping Hu
- 1Department of Cell Biology, Center for stem cell and Medicine, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Min-Jun Wang
- 1Department of Cell Biology, Center for stem cell and Medicine, Second Military Medical University (Naval Medical University), Shanghai, China
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Nys C, Vankelecom H. Pituitary disease and recovery: How are stem cells involved? Mol Cell Endocrinol 2021; 525:111176. [PMID: 33503464 DOI: 10.1016/j.mce.2021.111176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 12/14/2022]
Abstract
The pituitary gland embodies our endocrine hub and rigorously regulates hormone balances in the body, thereby ruling over vital developmental and physiological processes. Pituitary dysfunction and disease strongly impact the organism's biology. Physical damage, tumour development and ageing all negatively affect pituitary state and functionality. On top of its hormone-producing cells, the pituitary contains a population of stem cells. Not only their physiological role is still largely unknown, also whether or how these stem cells are involved in pituitary disease and recovery from defective functionality remains enigmatic. Here, we summarize what is known on the phenotypical and functional behaviour of pituitary stem cells in diseased or dysfunctional gland, as particularly caused by injury, tumourigenesis and ageing.
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Affiliation(s)
- Charlotte Nys
- Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven (University of Leuven), 3000, Leuven, Belgium
| | - Hugo Vankelecom
- Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven (University of Leuven), 3000, Leuven, Belgium.
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Wang W, Liu Z, Qian J, Xu J, Que S, Zhuang L, Geng L, Zhou L, Zheng S. Systematic Assessment of Safety Threshold for Donor Age in Cadaveric Liver Transplantation. Front Med (Lausanne) 2021; 8:596552. [PMID: 33748155 PMCID: PMC7969668 DOI: 10.3389/fmed.2021.596552] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/08/2021] [Indexed: 12/27/2022] Open
Abstract
Background: Donor age affects allograft quality and the prognosis of recipients after liver transplantation (LT). Clinicians have assessed the quality of grafts from older donors based on their appearance and texture, with no reliable quantitative evidence. Our study aimed to assess the quantitative impact of donor age on post-transplant outcomes and its safety threshold for LT, based on the published literature. Methods: Relevant studies were retrieved from the Embase, PubMed, and ISI Web of Science databases. Pooled dichotomous relative risks (RRs) were calculated using metan. Continuous RRs were calculated using a two-stage random-effects model. Results: Eleven studies including 30,691 LT cases were included for further analysis. For categorical comparison, the RR of death within the first post-transplant year was significantly higher among patients who received grafts from older donors. Similarly, the RR of graft failure (GF) was increased within the 3 years after transplantation. For continuous comparison, advanced donor age affected transplant outcomes in a linear manner (P > 0.05). A 10-year increment in donor age was associated with RRs 1.10, 1.12, 1.15, 1.10, and 1.08 for 90-day, 180-day, 1-year, 3-year, and 5-year patient mortality and 1.08, 1.06, 1.10, 1.11, and 1.12, for 90-day, 180-day, 1-year, 2-year, and 3-year GF, respectively (all P < 0.05). A spline model showed that transplants using grafts from donors <43 years old were not associated with age-related risks (P > 0.05). The risk of GF was increased in subgroups with fewer LT cases, longer cold ischemic time, fewer male donors, and recipients with viral hepatitis (P < 0.05). Conclusion: Donor age might affect post-LT outcomes in a dose-dependent manner. The safety threshold for donor age in terms of GF should be lowered to 43 years as an early warning for the guarantee of satisfactory outcomes. Clinicians should weigh the benefits against the risks carefully for patients receiving grafts from older donors. Further studies are warranted to investigate the mechanisms responsible for the relationship between donor age and graft quality.
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Affiliation(s)
- Wenchao Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,National Health Commission Key Laboratory of Combined Multi-organ Transplantation, Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhengtao Liu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,National Health Commission Key Laboratory of Combined Multi-organ Transplantation, Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Organ Transplantation, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Junjie Qian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,National Health Commission Key Laboratory of Combined Multi-organ Transplantation, Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jun Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuping Que
- Science for Life Laboratory, Kungliga Tekniska Högskolan - Royal Institute of Technology, Stockholm, Sweden.,DingXiang Clinics, Hangzhou, China
| | - Li Zhuang
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, China
| | - Lei Geng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,National Health Commission Key Laboratory of Combined Multi-organ Transplantation, Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Organ Transplantation, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,National Health Commission Key Laboratory of Combined Multi-organ Transplantation, Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Organ Transplantation, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, China
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41
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Erbaba B, Arslan-Ergul A, Adams MM. Effects of caloric restriction on the antagonistic and integrative hallmarks of aging. Ageing Res Rev 2021; 66:101228. [PMID: 33246078 DOI: 10.1016/j.arr.2020.101228] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/09/2020] [Accepted: 11/19/2020] [Indexed: 12/19/2022]
Abstract
Aging is a significant risk factor for cognitive decline associated with neurodegenerative diseases, which makes understanding what promotes 'healthy brain aging' very important. Studies suggest that caloric restriction (CR) is a non-genetic intervention that reliably extends life- and healthspan. Here, we review the CR literature related to both the subject of aging and alterations in cell cycle machinery, especially surrounding the regulation of the E2F/DP1 complex, to elucidate the cellular protection mechanisms in the brain induced via dietary applications. The alterations extending lifespan via CR appear to exert their effects by promoting survival of individual cells, downregulating cell proliferation, and inducing stem cell quiescence, which results in keeping the stem cell reserve for extreme needs. This survival instinct of cells is believed to cause some molecular adaptations for their maintenance of the system. Avoiding energy waste of proliferation machinery promotes the long term survival of the individual cells and this is due to adaptations to the limited nutrient supply in the environment. Such a protective mechanism induced by diet could be promoted via the downregulation of crucial cell cycle-related transcription activators. This review article aims to bring attention to the importance of molecular adaptations induced by diet that promote healthy brain aging. It will provide insights into alternative targets for new treatments or neuroprotective approaches against neurodegenerative pathophysiologies.
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Affiliation(s)
- Begun Erbaba
- Interdisciplinary Graduate Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey
| | - Ayca Arslan-Ergul
- National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey
| | - Michelle M Adams
- Interdisciplinary Graduate Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey; Department of Psychology, Bilkent University, Ankara, Turkey.
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42
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Ma H, Wang C, Liu X, Zhan M, Wei W, Niu J. Src homolog and collagen homolog1 isoforms in acute and chronic liver injuries. Life Sci 2021; 273:119302. [PMID: 33662427 DOI: 10.1016/j.lfs.2021.119302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
Src homolog and collagen homolog (SHC) proteins are adaptor proteins bound to cell surface receptors that play an important role in signal transduction and related diseases. As an important member of the SHC protein family, SHC1 regulates cell proliferation and apoptosis, reactive oxygen species (ROS) production, and oxidative stress. Three isomeric proteins namely, p46shc, p52shc, and p66shc, are produced from the same SHC1 gene locus. All the three proteins are found in the liver, and are widely expressed in various hepatic cells. SHC1 has been proven to be associated with acute and chronic liver injuries of different etiologies, and plays important roles in liver fibrosis and hepatocellular carcinoma (HCC). Therefore, this review summarizes recent studies that discuss and explore the role of SHC1 in the occurrence and progression of liver diseases. We also provide a theoretical basis for future studies.
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Affiliation(s)
- Heming Ma
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Chang Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Xu Liu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Mengru Zhan
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Wei Wei
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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43
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Li S, Li J, Pan R, Cheng J, Cui Q, Chen J, Yuan Z. Sodium rutin extends lifespan and health span in mice including positive impacts on liver health. Br J Pharmacol 2021; 179:1825-1838. [PMID: 33555034 DOI: 10.1111/bph.15410] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/15/2021] [Accepted: 02/01/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND AND PURPOSE Ageing is associated with progressive metabolic dysregulation. Rutin is a metabolic regulator with a poor solubility. Using soluble sodium rutin we investigating the effect and mechanisms of rutin in ageing process. EXPERIMENTAL APPROACH Wild type male mice were treated with or without sodium rutin ( 0.2 mg·ml-1 in drinking water from 8-month-old until end of life. Kaplan-Meier survival curve was used for lifespan assay, ageing-related histopathology analysis and metabolic analysis were performed to determine the effects of chronic sodium rutin on the longevity. Serological test, liver tissue metabolomics and transcriptomics were used for liver function assay. SiRNA knockdown Angptl8 and autophagy flux assay in HepG2 cell lines explored the mechanism through which sodium rutin might impact the function of hepatocyte. KEY RESULTS Sodium rutin treatment extends the lifespan of mice by 10%. Sodium rutin supplementation alleviates ageing-related pathological changes and promotes behaviour performance in ageing mice. Sodium rutin supplementation altered the whole-body metabolism in mice, which exhibited increased energy expenditure and lower respiratory quotient. Transcriptomics analysis showed that Sodium rutin affected the expression of metabolic genes. Metabolomics analysis showed that Sodium rutin reduced liver steatosis through increased lipid β-oxidation. Sodium rutin treatment increased the autophagy level both in vivo and in vitro. The inhibition of autophagy partially abolished the sodium rutin-mediated effect on lipolysis in HepG2 cells. CONCLUSION AND IMPLICATIONS Sodium rutin treatment extends the lifespan and health span of mice with beneficial effects on metabolism, which were achieved by enhancing the autophagy activity in hepatocytes.
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Affiliation(s)
- Shuoshuo Li
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Jun Li
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Ruiyuan Pan
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Jinbo Cheng
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China.,Center on Translational Neuroscience, College of Life & Environmental Science, Minzu University of China, Beijing, China
| | - Qinghua Cui
- Department of Biomedical Informatics, Center for Noncoding RNA Medicine, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jianxin Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Zengqiang Yuan
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China.,Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.,Center on Translational Neuroscience, College of Life & Environmental Science, Minzu University of China, Beijing, China
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44
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Abstract
Aging increases the incidence of chronic liver disease (CLD), worsens its prognosis, and represents the predominant risk factor for its development at all different stages. The hepatic sinusoid, which is fundamental for maintaining liver homeostasis, is composed by hepatocytes, liver sinusoidal endothelial cells, hepatic stellate cells, and hepatic macrophages. During CLD progression, hepatic cells suffer deregulations in their phenotype, which ultimately lead to disease development. The effects of aging on the hepatic sinusoid phenotype and function are not well understood, nevertheless, studies performed in experimental models of liver diseases and aging demonstrate alterations in all hepatic sinusoidal cells. This review provides an updated description of age-related changes in the hepatic sinusoid and discusses the implications for CLD development and treatment. Lastly, we propose aging as a novel therapeutic target to treat liver diseases and summarize the most promising therapies to prevent or improve CLD and extend healthspan.
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Affiliation(s)
- Raquel Maeso-Díaz
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, North Carolina
| | - Jordi Gracia-Sancho
- Liver Vascular Biology Research Group, IDIBAPS Biomedical Research Institute, CIBEREHD, Barcelona, Spain.,Division of Hepatology, Department of Biomedical Research, Inselspital, University of Bern, Bern, Switzerland
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45
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Tanimizu N, Ichinohe N, Suzuki H, Mitaka T. Prolonged oxidative stress and delayed tissue repair exacerbate acetaminophen-induced liver injury in aged mice. Aging (Albany NY) 2020; 12:18907-18927. [PMID: 33001859 PMCID: PMC7732315 DOI: 10.18632/aging.103973] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/08/2020] [Indexed: 01/24/2023]
Abstract
The liver gradually loses its regenerative capabilities with aging. However, it remains unknown whether aging affects drug-induced liver injury. Here, we used acetaminophen induced acute liver injury model to compare tissue injury and regeneration of aged mice (>80 weeks old) with young ones (8-10 weeks old). The mortality of aged mice after acetaminophen injury was higher than that of young mice. Transient increase of serum GOT and decrease of reduced glutathione (GSH) were not returned to original levels in aged mice even at 48 hours. In addition, Foxm1b and its targets Ccnd1 and Cdk1 were upregulated in young but not in aged mice after 48 hours. Moreover, an apoptosis-related gene, Cidea, was upregulated specifically in aged livers, which was consistent with increased number of TUNEL+ hepatocytes. Unexpectedly, damaged hepatocytes were retained in aged liver tissue, which may be caused by impaired recruitment of macrophages to the damaged area, without increases in Ccl2 after acetaminophen injury. Collectively, prolonged oxidative stress due to delayed recovery of GSH and the retention of damaged hepatocytes may suppress tissue repair and hepatocyte proliferation, resulting in exacerbation of acetaminophen injury in aged mice. Thus, aging is a risk factor conferring susceptibility against drug-induced liver injury.
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Affiliation(s)
- Naoki Tanimizu
- Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Chuo-ku 060-8556, Japan
| | - Norihisa Ichinohe
- Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Chuo-ku 060-8556, Japan
| | - Hiromu Suzuki
- Department of Molecular Biology, Sapporo Medical University School of Medicine, Chuo-ku 060-8556, Japan
| | - Toshihiro Mitaka
- Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Chuo-ku 060-8556, Japan
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46
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Pinto C, Ninfole E, Gaggiano L, Benedetti A, Marzioni M, Maroni L. Aging and the Biological Response to Liver Injury. Semin Liver Dis 2020; 40:225-232. [PMID: 31887774 DOI: 10.1055/s-0039-3402033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Interest in understanding the aging process has recently risen in the scientific community. Aging, commonly defined as the functional decline in the function of organs and tissues, is indeed the major risk factor for the development of many chronic diseases, such as cardiovascular diseases, pathologies of nervous system, or cancer. To date, the influence of aging in the pathophysiology of liver and biliary diseases is not fully understood. Although liver cells have a high regenerative capacity, hepatocytes and cholangiocytes undergo extensive molecular changes in response to aging. Following time-dependent damage induced by aging, liver cells initially activate compensatory mechanisms that, if hyperstimulated, may lead to the decline of regenerative capacity and the development of pathologies. A deeper understanding of molecular aging has undoubtedly the potential to improve the clinical management of patients, possibly unveiling new pathways for selective drug treatment.
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Affiliation(s)
- Claudio Pinto
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Elisabetta Ninfole
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Laura Gaggiano
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Antonio Benedetti
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Marco Marzioni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Luca Maroni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
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47
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Sun X, Harris EN. New aspects of hepatic endothelial cells in physiology and nonalcoholic fatty liver disease. Am J Physiol Cell Physiol 2020; 318:C1200-C1213. [PMID: 32374676 DOI: 10.1152/ajpcell.00062.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The liver is the central metabolic hub for carbohydrate, lipid, and protein metabolism. It is composed of four major types of cells, including hepatocytes, endothelial cells (ECs), Kupffer cells, and stellate cells. Hepatic ECs are highly heterogeneous in both mice and humans, representing the second largest population of cells in liver. The majority of them line hepatic sinusoids known as liver sinusoidal ECs (LSECs). The structure and biology of LSECs and their roles in physiology and liver disease were reviewed recently. Here, we do not give a comprehensive review of LSEC structure, function, or pathophysiology. Instead, we focus on the recent progress in LSEC research and other hepatic ECs in physiology and nonalcoholic fatty liver disease and other hepatic fibrosis-related conditions. We discuss several current areas of interest, including capillarization, scavenger function, autophagy, cellular senescence, paracrine effects, and mechanotransduction. In addition, we summarize the strengths and weaknesses of evidence for the potential role of endothelial-to-mesenchymal transition in liver fibrosis.
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Affiliation(s)
- Xinghui Sun
- Department of Biochemistry, University of Nebraska-Lincoln, Beadle Center, Lincoln, Nebraska.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska.,Nebraska Center for the Prevention of Obesity Diseases through Dietary Molecules, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Edward N Harris
- Department of Biochemistry, University of Nebraska-Lincoln, Beadle Center, Lincoln, Nebraska.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska.,Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
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48
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Maklakova IY, Grebnev DY, Yusupova VC, Krohalev VY. Homing of Multipotent Mesenchymal Stromal Cells with Different Administration Routes in Old Laboratory Animals after Liver Resection. ADVANCES IN GERONTOLOGY 2020. [DOI: 10.1134/s2079057020010117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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49
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Abstract
Non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) are two of the most common liver diseases associated with obesity, type 2 diabetes and metabolic syndrome. The prevalence of these conditions are increasingly rising and presently there is not a pharmacological option available in the market. Elucidation of the mechanism of action and the molecular underpinnings behind liver disease could help to better understand the pathophysiology of these illnesses. In this sense, in the last years modulation of the ghrelin system in preclinical animal models emerge as a promising therapeutic tool. In this review, we compile the latest knowledge of the modulation of ghrelin system and its intracellular pathways that regulates lipid metabolism, hepatic inflammation and liver fibrosis. We also describe novel processes implicated in the regulation of liver disease by ghrelin, such as autophagy or dysregulated circadian rhythms. In conclusion, the information displayed in this review support that the ghrelin system could be an appealing strategy for the treatment of liver disease.
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Affiliation(s)
- Mar Quiñones
- Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 15706, Santiago de Compostela, Spain
| | - Johan Fernø
- Hormone Laboratory, Haukeland University Hospital, Bergen, Norway
| | - Omar Al-Massadi
- Inserm UMR-S1270, 75005, Paris, France.
- Faculté des Sciences et d'Ingénierie, Sorbonne Université, 75005, Paris, France.
- Institut du Fer a Moulin, Inserm, 17 rue du Fer à Moulin, 75005, Paris, France.
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50
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Pinto C, Ninfole E, Benedetti A, Maroni L, Marzioni M. Aging-Related Molecular Pathways in Chronic Cholestatic Conditions. Front Med (Lausanne) 2020; 6:332. [PMID: 32039217 PMCID: PMC6985088 DOI: 10.3389/fmed.2019.00332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022] Open
Abstract
Aging is commonly defined as the time-dependent functional decline of organs and tissues. Average life expectancy has increased considerably over the past century and is estimated to increase even further, consequently also the interest in understanding the aging processes. Although aging is not a disease, it is the major risk factor for the development of many chronic diseases. Pathologies, such as Primary Biliary Cholangitis (PBC) and Primary Sclerosing Cholangitis (PSC) are cholestatic liver diseases characterized by chronic inflammation, biliary damage and ultimately liver fibrosis, targeting specifically cholangiocytes. To date, the influence of aging in these biliary diseases is not fully understood. Currently, liver transplantation is the only solution because of lacking in efficiently therapies. Although liver cells have a high regenerative capacity, they undergo extensive molecular changes in response to aging. Following time-dependent damage induced by aging, the cells initially activate protective compensatory processes that, if hyperstimulated, can lead to the decline of regenerative ability and the development of pathologies. Recent studies have introduced novel therapeutic tools for cholangiopathies that have showed to have promising potential as novel therapies for PSC and PBC and for the development of new drugs. The recent advancements in understanding of molecular aging have undoubtedly the potential to unveil new pathways for selective drug treatments, but further studies are needed to deepen their knowledge.
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Affiliation(s)
- Claudio Pinto
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Elisabetta Ninfole
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Antonio Benedetti
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Luca Maroni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Marco Marzioni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
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