1
|
Monteillet L, Labrune P, Hochuli M, Do Cao J, Tortereau A, Miliano AC, Ardon-Zitoun C, Duchampt A, Silva M, Verzieux V, Mithieux G, Rajas F. Cellular and metabolic effects of renin-angiotensin system blockade on glycogen storage disease type I nephropathy. Hum Mol Genet 2021; 31:914-928. [PMID: 34617103 PMCID: PMC8947214 DOI: 10.1093/hmg/ddab297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/04/2021] [Accepted: 10/04/2021] [Indexed: 02/06/2023] Open
Abstract
Glycogen Storage Disease Type I (GSDI) is an inherited disease caused by glucose-6 phosphatase (G6Pase) deficiency, leading to a loss of endogenous glucose production and severe hypoglycemia. Moreover, most GSDI patients develop a chronic kidney disease (CKD) due to lipid accumulation in the kidney. Similar to diabetic CKD, activation of renin-angiotensin system (RAS) promotes renal fibrosis in GSDI. Here, we investigated the physiological and molecular effects of RAS blockers in GSDI patients and mice. A retrospective analysis of renal function was performed in 21 GSDI patients treated with RAS blockers. Cellular and metabolic impacts of RAS blockade were analyzed in K.G6pc−/− mice characterized by G6pc1 deletion in kidneys. GSDI patients started RAS blocker treatment at a median age of 21 years and long-term treatment reduced the progression of CKD in about 50% of patients. However, CKD progressed to kidney failure in 20% of treated patients, requiring renal transplantation. In K.G6pc−/− mice, CKD was associated with an impairment of autophagy and ER stress. RAS blockade resulted in a rescue of autophagy and decreased ER stress, concomitantly with decreased fibrosis and improved renal function, but without impact on glycogen and lipid contents. In conclusion, these data confirm the partial beneficial effect of RAS blockers in the prevention of CKD in GSDI. Mechanistically, we show that these effects are linked to a reduction of cell stress, without affecting metabolism.
Collapse
Affiliation(s)
- Laure Monteillet
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Philippe Labrune
- APHP, Université Paris-Saclay, Hôpital Antoine Béclère, Clamart, France
| | - Michel Hochuli
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Jeremy Do Cao
- APHP, Université Paris-Saclay, Hôpital Antoine Béclère, Clamart, France
| | | | | | - Carine Ardon-Zitoun
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Adeline Duchampt
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Marine Silva
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Vincent Verzieux
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Gilles Mithieux
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Fabienne Rajas
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| |
Collapse
|
2
|
Poletto E, Baldo G. Creating cell lines for mimicking diseases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2021; 181:59-87. [PMID: 34127202 DOI: 10.1016/bs.pmbts.2021.01.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cell lines can be good models for the disease they are derived from but can also be used to study general physiological and pathological processes. They can also be used to generate cell models of diseases when primary cultures are not available. Recent genome editing tools have been very promising tools toward creating cell models to mimic diseases in vitro. In this chapter, we highlight techniques used to obtain genome-edited cell lines, including cell line selection, transfection and gene editing tools available, together with methods of phenotype characterization and, lastly, a few examples of how in vitro disease models were created using CRISPR-Cas9.
Collapse
Affiliation(s)
- Edina Poletto
- Gene Therapy Center, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Post-Graduate Program in Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Guilherme Baldo
- Gene Therapy Center, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Post-Graduate Program in Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| |
Collapse
|
3
|
Xu Q, Tang H, Duan L, Zuo X, Shi X, Li Y, Zhao H, Zhang H. A novel SLC37A4 missense mutation in GSD-Ib without hepatomegaly causes enhanced leukocytes endoplasmic reticulum stress and apoptosis. Mol Genet Genomic Med 2020; 9:e1568. [PMID: 33280276 PMCID: PMC7963412 DOI: 10.1002/mgg3.1568] [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: 06/23/2020] [Revised: 11/08/2020] [Accepted: 11/16/2020] [Indexed: 11/19/2022] Open
Abstract
Background Glycogen storage disease (GSD) type Ib is an autosomal recessive disease caused by defects of glucose‐6‐phosphate transporter (G6PT), encoded by the SLC37A4 gene. To date, over 100 mutations have been revealed in the SLC37A4 gene. GSD‐Ib patients manifest a metabolic phenotype of impaired blood glucose homeostasis and also carry the additional complications of neutropenia and myeloid dysfunction. Methods Here, we present two daughters with an initial diagnosis of gout in a Chinese consanguineous family. Whole‐exome sequencing was performed to identify the mutations. The mechanism of leukocytopenia was investigated. Results Whole‐exome sequencing analysis of the proband identified a novel homozygous p.P119L mutation in SLC37A4, leading to a diagnosis of GSD‐Ib. We found that the potential pathogenic p.P119L mutation leads to an unusual phenotype characterized by gout at onset, and GSD‐Ib arising from this variant also manifests multiple metabolic abnormalities, leukocytopenia, and anemia, but no hepatomegaly. The leukocytes from the proband showed increased mRNA levels of sXBP‐1, BIP, and CHOP genes in the unfolded protein response pathway, and enhanced Bax mRNA and caspase‐3 activity, which might contribute to leukocytopenia. Conclusion Our findings broaden the variation spectrum of SLC37A4 and suggest no strict genotype–phenotype correlations in GSD‐Ib patients.
Collapse
Affiliation(s)
- Qianyun Xu
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Haiyan Tang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Liping Duan
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoliu Shi
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yisha Li
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China.,Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Hongjun Zhao
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Huali Zhang
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China.,Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Sepsis Translational Medicine Key Laboratory of Hunan, Central South University, Changsha, China
| |
Collapse
|