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VanPortfliet JJ, Chute C, Lei Y, Shutt TE, West AP. Mitochondrial DNA release and sensing in innate immune responses. Hum Mol Genet 2024; 33:R80-R91. [PMID: 38779772 PMCID: PMC11112387 DOI: 10.1093/hmg/ddae031] [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: 01/27/2024] [Accepted: 02/09/2024] [Indexed: 05/25/2024] Open
Abstract
Mitochondria are pleiotropic organelles central to an array of cellular pathways including metabolism, signal transduction, and programmed cell death. Mitochondria are also key drivers of mammalian immune responses, functioning as scaffolds for innate immune signaling, governing metabolic switches required for immune cell activation, and releasing agonists that promote inflammation. Mitochondrial DNA (mtDNA) is a potent immunostimulatory agonist, triggering pro-inflammatory and type I interferon responses in a host of mammalian cell types. Here we review recent advances in how mtDNA is detected by nucleic acid sensors of the innate immune system upon release into the cytoplasm and extracellular space. We also discuss how the interplay between mtDNA release and sensing impacts cellular innate immune endpoints relevant to health and disease.
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Affiliation(s)
- Jordyn J VanPortfliet
- The Jackson Laboratory, Bar Harbor, ME 04609, United States
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University, Bryan, TX 77807, United States
| | - Cole Chute
- Departments of Medical Genetics and Biochemistry & Molecular Biology, Alberta Children's Hospital Research Institute, Hotchkiss Brain Institute, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Yuanjiu Lei
- Department of Pathology, Yale School of Medicine, New Haven, CT 06520, United States
| | - Timothy E Shutt
- Departments of Medical Genetics and Biochemistry & Molecular Biology, Alberta Children's Hospital Research Institute, Hotchkiss Brain Institute, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - A Phillip West
- The Jackson Laboratory, Bar Harbor, ME 04609, United States
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University, Bryan, TX 77807, United States
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Dong Z, Liao N, Luo Y, Zhang Y, Huang L, Chen P, Lu C, Pan M. BmATAD3A mediates mitochondrial ribosomal protein expression to maintain the mitochondrial energy metabolism of the silkworm, Bombyx mori. INSECT SCIENCE 2024. [PMID: 38616538 DOI: 10.1111/1744-7917.13366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 01/24/2024] [Accepted: 03/11/2024] [Indexed: 04/16/2024]
Abstract
ATAD3A is a mitochondrial membrane protein belonging to the ATPase family that contains the AAA+ domain. It is widely involved in mitochondrial metabolism, protein transport, cell growth, development and other important life processes. It has previously been reported that the deletion of ATAD3A causes growth and development defects in humans, mice and Caenorhabditis elegans. To delve into the mechanism underlying ATAD3A defects and their impact on development, we constructed a Bombyx mori ATAD3A (BmATAD3A) defect model in silkworm larvae. We aim to offer a reference for understanding ATAD3A genetic defects and elucidating the molecular regulatory mechanisms. The results showed that knockout of the BmATAD3A gene significantly affected the weight, survival rate, ATPase production and mitochondrial metabolism of individuals after 24 h of incubation. Combined metabolomics and transcriptomics analysis further demonstrated that BmATAD3A knockout inhibits amino acid biosynthesis through the regulation of mitochondrial ribosomal protein expression. Simultaneously, our findings indicate that BmATAD3A knockout impeded mitochondrial activity and ATPase synthesis and suppressed the mitochondrial oxidative phosphorylation pathway through B. mori mitochondrial ribosomal protein L11 (BmmRpL11). These results provide novel insights into the molecular mechanisms involved in the inhibition of development caused by ATAD3A deficiency, offering a potential direction for targeted therapy in diseases associated with abnormal ATAD3A expression.
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Affiliation(s)
- Zhanqi Dong
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Nachuan Liao
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Yan Luo
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Ya Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Liang Huang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Peng Chen
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Cheng Lu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Minhui Pan
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
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Gaudó P, de Tomás-Mateo E, Garrido-Pérez N, Santana A, Ruiz-Pesini E, Montoya J, Bayona-Bafaluy P. "ATAD3C regulates ATAD3A assembly and function in the mitochondrial membrane". Free Radic Biol Med 2024; 211:114-126. [PMID: 38092275 DOI: 10.1016/j.freeradbiomed.2023.12.006] [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: 06/07/2023] [Revised: 11/28/2023] [Accepted: 12/07/2023] [Indexed: 12/21/2023]
Abstract
Mitochondrial ATAD3A is an ATPase Associated with diverse cellular Activities (AAA) domain containing enzyme, involved in the structural organization of the inner mitochondrial membrane and of increasing importance in childhood disease. In humans, two ATAD3A paralogs arose by gene duplication during evolution: ATAD3B and ATAD3C. Here we investigate the cellular activities of the ATAD3C paralog that has been considered a pseudogene. We detected unique ATAD3C peptides in HEK 293T cells, with expression similar to that in human tissues, and showed that it is an integral membrane protein that exposes its carboxy-terminus to the intermembrane space. Overexpression of ATAD3C, but not of ATAD3A, in fibroblasts caused a decrease in cell proliferation and oxygen consumption rate, and an increase of cellular ROS. This was due to the incorporation of ATAD3C monomers in ATAD3A complex in the mitochondrial membrane reducing its size. Consistent with a negative regulation of ATAD3A function in mitochondrial membrane organization, ATAD3C expression led to increased accumulation of respiratory chain dimeric CIII in the inner membrane, to the detriment to that assembled in respiratory supercomplexes. Our results demonstrate a negative dominant role of the ATAD3C paralog with implications for mitochondrial OXPHOS function and suggest that its expression regulates ATAD3A in the cell.
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Affiliation(s)
- Paula Gaudó
- Biochemistry and Molecular Biology Department. Universidad de Zaragoza, 50009- and 50013, Zaragoza, Spain
| | - Elena de Tomás-Mateo
- Biochemistry and Molecular Biology Department. Universidad de Zaragoza, 50009- and 50013, Zaragoza, Spain
| | - Nuria Garrido-Pérez
- Biochemistry and Molecular Biology Department. Universidad de Zaragoza, 50009- and 50013, Zaragoza, Spain; Institute for Health Research (IIS) de Aragón, 50009, Zaragoza, Spain; Rare Diseases Networking Biomedical Research Centre (CIBERER), 28029, Madrid, Spain; Institute for Biocomputation and Physics of Complex Systems, University of Zaragoza, 50018, Zaragoza, Spain
| | - Alfredo Santana
- Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, 35001, Las Palmas de Gran Canaria, Spain; Clinical Genetics Unit, Complejo Hospitarlario Universitario Insular-Materno Infantil de Las Palamas de Gran Canaria, 35016, Las Palmas de Gran Canaria, Spain
| | - Eduardo Ruiz-Pesini
- Institute for Health Research (IIS) de Aragón, 50009, Zaragoza, Spain; Rare Diseases Networking Biomedical Research Centre (CIBERER), 28029, Madrid, Spain.
| | - Julio Montoya
- Biochemistry and Molecular Biology Department. Universidad de Zaragoza, 50009- and 50013, Zaragoza, Spain; Institute for Health Research (IIS) de Aragón, 50009, Zaragoza, Spain; Rare Diseases Networking Biomedical Research Centre (CIBERER), 28029, Madrid, Spain
| | - Pilar Bayona-Bafaluy
- Biochemistry and Molecular Biology Department. Universidad de Zaragoza, 50009- and 50013, Zaragoza, Spain; Institute for Health Research (IIS) de Aragón, 50009, Zaragoza, Spain; Rare Diseases Networking Biomedical Research Centre (CIBERER), 28029, Madrid, Spain; Institute for Biocomputation and Physics of Complex Systems, University of Zaragoza, 50018, Zaragoza, Spain.
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Liu Z, Sun L, Zheng B, Wang H, Qin X, Zhang P, Wo Q, Li H, Mou Y, Zhang D, Wang S. The value of ATAD3A as a potential biomarker for bladder cancer. Cancer Med 2023; 12:22395-22406. [PMID: 38018291 PMCID: PMC10757082 DOI: 10.1002/cam4.6759] [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: 11/28/2022] [Revised: 06/28/2023] [Accepted: 09/29/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND Bladder cancer (BCa) is a highly malignant tumor, and if left untreated, it can develop severe hematuria and tumor metastasis, thereby endangering the patient's life. The purpose of this paper was to detect the expression of ATAD3A in BCa and research the relationship between ATAD3A and pathological features of bladder cancer and the prognosis of patients. METHODS First, the expression of ATAD3A in BCa and normal bladder tissues was analyzed based on the UALCAN and Oncomine public databases. Second, 491 cases of surgically resected bladder cancer specimens and 110 cases of normal adjacent tissues were immunohistochemically stained. The expression of ATAD3A was quantified, and the value and prognosis of ATAD3A as a biomarker of BCa were evaluated. RESULTS The expression of ATAD3A in bladder cancer tissues was higher than that in normal bladder mucosa. High expression of ATAD3A was correlated with patient age, tumor size, number of tumors, distant metastasis, lymph node metastasis, lymphovascular invasion, and TNM stage (p < 0.05). Overexpression of ATAD3A is closely related to cancer patient survival. The mean survival time of bladder cancer patients with high ATAD3A expression was shorter than those with low ATAD3A levels. According to the relative comparing result, the high ATAD3A expression herald reduced overall survival in BCa patients. CONCLUSIONS The abnormal overexpression of ATAD3A may be related to the initiation and progress of bladder cancer. The upregulation of ATAD3A can be used as an effective indicator to diagnose bladder cancer and predict tumor progression. Furthermore, the combination of information from public databases and the results of clinical sample analysis can help us better understand the mechanism of action of molecular oncogenes in bladder cancer.
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Affiliation(s)
- Zhenghong Liu
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Li Sun
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Bin Zheng
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Heng Wang
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Xiaowen Qin
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Pu Zhang
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Qijun Wo
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Haichang Li
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Yixuan Mou
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Dahong Zhang
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Shuai Wang
- Urology & Nephrology Center, Department of UrologyZhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
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Chen L, Li Y, Zambidis A, Papadopoulos V. ATAD3A: A Key Regulator of Mitochondria-Associated Diseases. Int J Mol Sci 2023; 24:12511. [PMID: 37569886 PMCID: PMC10419812 DOI: 10.3390/ijms241512511] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Mitochondrial membrane protein ATAD3A is a member of the AAA-domain-containing ATPases superfamily. It is important for the maintenance of mitochondrial DNA, structure, and function. In recent years, an increasing number of ATAD3A mutations have been identified in patients with neurological symptoms. Many of these mutations disrupt mitochondrial structure, function, and dynamics and are lethal to patients at a young age. Here, we summarize the current understanding of the relationship between ATAD3A and mitochondria, including the interaction of ATAD3A with mitochondrial DNA and mitochondrial/ER proteins, the regulation of ATAD3A in cholesterol mitochondrial trafficking, and the effect of known ATAD3A mutations on mitochondrial function. In the current review, we revealed that the oligomerization and interaction of ATAD3A with other mitochondrial/ER proteins are vital for its various functions. Despite affecting different domains of the protein, nearly all documented mutations observed in ATAD3A exhibit either loss-of-function or dominant-negative effects, potentially leading to disruption in the dimerization of ATAD3A; autophagy; mitophagy; alteration in mitochondrial number, size, and cristae morphology; and diminished activity of mitochondrial respiratory chain complexes I, IV, and V. These findings imply that ATAD3A plays a critical role in mitochondrial dynamics, which can be readily perturbed by ATAD3A mutation variants.
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Affiliation(s)
| | | | | | - Vassilios Papadopoulos
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 99089, USA; (L.C.); (Y.L.); (A.Z.)
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Ebihara T, Nagatomo T, Sugiyama Y, Tsuruoka T, Osone Y, Shimura M, Tajika M, Ichimoto K, Naruke Y, Akiyama N, Lim SC, Yatsuka Y, Nitta KR, Kishita Y, Fushimi T, Okazaki A, Ohtake A, Okazaki Y, Murayama K. Severe spinal cord hypoplasia due to a novel ATAD3A compound heterozygous deletion. Mol Genet Metab Rep 2022; 33:100912. [PMID: 36061954 PMCID: PMC9428837 DOI: 10.1016/j.ymgmr.2022.100912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/13/2022] [Accepted: 08/13/2022] [Indexed: 11/03/2022] Open
Abstract
Biallelic deletions extending into the ATPase family AAA-domain containing protein 3A (ATAD3A) gene lead to infantile lethality with severe pontocerebellar hypoplasia (PCH). However, only 12 such cases have been reported worldwide to date, and the genotype–phenotype correlations are not well understood. We describe cases associated with the same novel biallelic deletions of the ATAD3A and ATAD3B/3A regions in Japanese siblings with severe spinal cord hypoplasia and multiple malformations, including PCH, leading to neonatal death. The ATAD3A protein is essential for normal interaction between mitochondria and endoplasmic reticulum and is important for mitochondrial biosynthesis. The cases were evaluated using whole-genome sequencing for genetic diagnosis of mitochondrial disease. Spinal cord lesions associated with biallelic compound heterozygous deletion extending into the ATAD3A gene have not been reported. In addition, the ATAD3A deletion was 19 base pairs long, which is short compared with those reported previously. This deletion introduced a frameshift, resulting in a premature termination codon, and was expected to be a null allele. The pathological findings of the atrophic spinal cord showed gliosis and tissue destruction of the gray and white matter. We describe spinal cord lesions as a new central nervous system phenotype associated with a biallelic compound heterozygous deletion extending into the ATAD3A gene. Biallelic ATAD3A deletions should be considered in cases of mitochondrial disease with spinal cord hypoplasia and PCH.
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7
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Lee H, Kim DW. Deletion of ATAD3A inhibits osteogenesis by impairing mitochondria structure and function in pre-osteoblast. Dev Dyn 2022; 251:1982-2000. [PMID: 36000457 DOI: 10.1002/dvdy.528] [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: 03/16/2022] [Revised: 07/22/2022] [Accepted: 08/08/2022] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND ATPase family AAA-domain containing protein 3A (ATAD3A) is a nuclear encoded mitochondrial membrane protein that spans inner and outer membrane, and it has been shown to regulate mitochondrial dynamics and cholesterol metabolism. Since the mitochondrial functions have been implicated for osteogenic differentiation, a role of ATAD3A in skeletal development has been investigated. RESULTS Mesenchyme-specific ATAD3 knockout mice displayed severe defects in skeletal development. Additionally, osteoblast-specific deletion of ATAD3 in mice caused significant reduction in bone mass, while cartilage-specific ATAD3 knockout mice did not show any significant phenotypes. Consistent with these in vivo findings, ATAD3A knockdown impaired mitochondrial morphology and function in calvarial pre-osteoblast cultures, which, in turn, suppressed osteogenic differentiation in vitro. CONCLUSIONS The current findings suggest that ATAD3A plays a crucial role in mitochondria homeostasis, which is required for osteogenic differentiation during skeletal development.
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Affiliation(s)
- Hyeri Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Dae-Won Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
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ATAD3A oligomerization promotes neuropathology and cognitive deficits in Alzheimer's disease models. Nat Commun 2022; 13:1121. [PMID: 35236834 PMCID: PMC8891325 DOI: 10.1038/s41467-022-28769-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 02/11/2022] [Indexed: 12/12/2022] Open
Abstract
Predisposition to Alzheimer’s disease (AD) may arise from lipid metabolism perturbation, however, the underlying mechanism remains elusive. Here, we identify ATPase family AAA-domain containing protein 3A (ATAD3A), a mitochondrial AAA-ATPase, as a molecular switch that links cholesterol metabolism impairment to AD phenotypes. In neuronal models of AD, the 5XFAD mouse model and post-mortem AD brains, ATAD3A is oligomerized and accumulated at the mitochondria-associated ER membranes (MAMs), where it induces cholesterol accumulation by inhibiting gene expression of CYP46A1, an enzyme governing brain cholesterol clearance. ATAD3A and CYP46A1 cooperate to promote APP processing and synaptic loss. Suppressing ATAD3A oligomerization by heterozygous ATAD3A knockout or pharmacological inhibition with DA1 restores neuronal CYP46A1 levels, normalizes brain cholesterol turnover and MAM integrity, suppresses APP processing and synaptic loss, and consequently reduces AD neuropathology and cognitive deficits in AD transgenic mice. These findings reveal a role for ATAD3A oligomerization in AD pathogenesis and suggest ATAD3A as a potential therapeutic target for AD. Disturbance in lipid metabolism is one of the major pathological events in Alzheimer’s disease (AD). Here, the authors identify ATAD3A oligomerization as a key mechanism causing impaired cholesterol metabolism and neuropathology in AD models.
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Arguello T, Peralta S, Antonicka H, Gaidosh G, Diaz F, Tu YT, Garcia S, Shiekhattar R, Barrientos A, Moraes CT. ATAD3A has a scaffolding role regulating mitochondria inner membrane structure and protein assembly. Cell Rep 2021; 37:110139. [PMID: 34936866 PMCID: PMC8785211 DOI: 10.1016/j.celrep.2021.110139] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/02/2021] [Accepted: 11/24/2021] [Indexed: 11/30/2022] Open
Abstract
The ATPase Family AAA Domain Containing 3A (ATAD3A), is a mitochondrial inner membrane protein conserved in metazoans. ATAD3A has been associated with several mitochondrial functions, including nucleoid organization, cholesterol metabolism, and mitochondrial translation. To address its primary role, we generated a neuronal-specific conditional knockout (Atad3 nKO) mouse model, which developed a severe encephalopathy by 5 months of age. Pre-symptomatic mice showed aberrant mitochondrial cristae morphogenesis in the cortex as early as 2 months. Using a multi-omics approach in the CNS of 2-to-3-month-old mice, we found early alterations in the organelle membrane structure. We also show that human ATAD3A associates with different components of the inner membrane, including OXPHOS complex I, Letm1, and prohibitin complexes. Stochastic Optical Reconstruction Microscopy (STORM) shows that ATAD3A is regularly distributed along the inner mitochondrial membrane, suggesting a critical structural role in inner mitochondrial membrane and its organization, most likely in an ATPase-dependent manner. Arguello et al. show that deletion of the mitochondrial protein ATAD3 in neurons leads to neuronal loss and death. The earliest phenotype is disruption of the mitochondrial inner membrane structure; OXPHOS complexes are affected later. ATAD3 is regularly spaced and has several interactors at the inner membrane, including CI subunits.
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Affiliation(s)
- Tania Arguello
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Susana Peralta
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Hana Antonicka
- Department of Human Genetics and Montreal Neurological Institute, McGill University, Montreal, QC H3A 0C7, Canada
| | - Gabriel Gaidosh
- Department of Human Genetics, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Francisca Diaz
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Ya-Ting Tu
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Sofia Garcia
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Ramin Shiekhattar
- Department of Human Genetics, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Antonio Barrientos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Carlos T Moraes
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
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Kim M, Schulz V, Brings L, Schoeller T, Kühn K, Vierling E. mTERF18 and ATAD3 are required for mitochondrial nucleoid structure and their disruption confers heat tolerance in Arabidopsis thaliana. THE NEW PHYTOLOGIST 2021; 232:2026-2042. [PMID: 34482561 DOI: 10.1111/nph.17717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/23/2021] [Indexed: 05/27/2023]
Abstract
Mitochondria play critical roles in generating ATP through oxidative phosphorylation (OXPHOS) and produce both damaging and signaling reactive oxygen species (ROS). They have reduced genomes that encode essential subunits of the OXPHOS machinery. Mitochondrial Transcription tERmination Factor-related (mTERF) proteins are involved in organelle gene expression, interacting with organellar DNA or RNA. We previously found that mutations in Arabidopsis thaliana mTERF18/SHOT1 enable plants to better tolerate heat and oxidative stresses, presumably due to low ROS production and reduced oxidative damage. Here we discover that shot1 mutants have greatly reduced OXPHOS complexes I and IV and reveal that suppressor of hot1-4 1 (SHOT1) binds DNA and localizes to mitochondrial nucleoids, which are disrupted in shot1. Furthermore, three homologues of animal ATPase family AAA domain-containing protein 3 (ATAD3), which is involved in mitochondrial nucleoid organization, were identified as SHOT1-interacting proteins. Importantly, disrupting ATAD3 function disrupts nucleoids, reduces accumulation of complex I, and enhances heat tolerance, as is seen in shot1 mutants. Our data link nucleoid organization to OXPHOS biogenesis and suggest that the common defects in shot1 mutants and ATAD3-disrupted plants lead to critical changes in mitochondrial metabolism and signaling that result in plant heat tolerance.
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Affiliation(s)
- Minsoo Kim
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA, 01003, USA
| | - Vincent Schulz
- Department of Life Sciences, Institute of Biology, Humboldt-Universität zu Berlin, 10099, Berlin, Germany
| | - Lea Brings
- Department of Life Sciences, Institute of Biology, Humboldt-Universität zu Berlin, 10099, Berlin, Germany
| | - Theresa Schoeller
- Department of Plant Physiology, Institute of Biology, Martin-Luther-Universität Halle-Wittenberg, 06120, Halle (Saale), Germany
| | - Kristina Kühn
- Department of Life Sciences, Institute of Biology, Humboldt-Universität zu Berlin, 10099, Berlin, Germany
- Department of Plant Physiology, Institute of Biology, Martin-Luther-Universität Halle-Wittenberg, 06120, Halle (Saale), Germany
| | - Elizabeth Vierling
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA, 01003, USA
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Yap ZY, Park YH, Wortmann SB, Gunning AC, Ezer S, Lee S, Duraine L, Wilichowski E, Wilson K, Mayr JA, Wagner M, Li H, Kini U, Black ED, Monaghan KG, Lupski JR, Ellard S, Westphal DS, Harel T, Yoon WH. Functional interpretation of ATAD3A variants in neuro-mitochondrial phenotypes. Genome Med 2021; 13:55. [PMID: 33845882 PMCID: PMC8042885 DOI: 10.1186/s13073-021-00873-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 03/17/2021] [Indexed: 12/20/2022] Open
Abstract
Background ATPase family AAA-domain containing protein 3A (ATAD3A) is a nuclear-encoded mitochondrial membrane-anchored protein involved in diverse processes including mitochondrial dynamics, mitochondrial DNA organization, and cholesterol metabolism. Biallelic deletions (null), recessive missense variants (hypomorph), and heterozygous missense variants or duplications (antimorph) in ATAD3A lead to neurological syndromes in humans. Methods To expand the mutational spectrum of ATAD3A variants and to provide functional interpretation of missense alleles in trans to deletion alleles, we performed exome sequencing for identification of single nucleotide variants (SNVs) and copy number variants (CNVs) in ATAD3A in individuals with neurological and mitochondrial phenotypes. A Drosophila Atad3a Gal4 knockin-null allele was generated using CRISPR-Cas9 genome editing technology to aid the interpretation of variants. Results We report 13 individuals from 8 unrelated families with biallelic ATAD3A variants. The variants included four missense variants inherited in trans to loss-of-function alleles (p.(Leu77Val), p.(Phe50Leu), p.(Arg170Trp), p.(Gly236Val)), a homozygous missense variant p.(Arg327Pro), and a heterozygous non-frameshift indel p.(Lys568del). Affected individuals exhibited findings previously associated with ATAD3A pathogenic variation, including developmental delay, hypotonia, congenital cataracts, hypertrophic cardiomyopathy, and cerebellar atrophy. Drosophila studies indicated that Phe50Leu, Gly236Val, Arg327Pro, and Lys568del are severe loss-of-function alleles leading to early developmental lethality. Further, we showed that Phe50Leu, Gly236Val, and Arg327Pro cause neurogenesis defects. On the contrary, Leu77Val and Arg170Trp are partial loss-of-function alleles that cause progressive locomotion defects and whose expression leads to an increase in autophagy and mitophagy in adult muscles. Conclusion Our findings expand the allelic spectrum of ATAD3A variants and exemplify the use of a functional assay in Drosophila to aid variant interpretation.
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Affiliation(s)
- Zheng Yie Yap
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Yo Han Park
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Saskia B Wortmann
- Institute of Human Genetics, Technical University Munich, Munich, Germany.,University Children's Hospital, Paracelsus Medical University (PMU), Salzburg, Austria.,Radboud Centre for Mitochondrial Medicine (RCMM), Amalia Children's Hospital, Nijmegen, The Netherlands
| | - Adam C Gunning
- Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, EX2 5DW, UK.,Institute of Biomedical and Clinical Science, College of Medicine and Health, University of Exeter, Exeter, EX2 5DW, UK
| | - Shlomit Ezer
- Department of Genetics, Hadassah Medical Center, POB 12000, 9112001, Jerusalem, Israel.,Faculty of Medicine, Hebrew University of Jerusalem, POB 12000, 9112001, Jerusalem, Israel
| | - Sukyeong Lee
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Lita Duraine
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX, USA
| | - Ekkehard Wilichowski
- Department of Pediatrics and Pediatric Neurology, University Medical Center Göttingen, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Kate Wilson
- Oxford Centre for Genomic Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Johannes A Mayr
- University Children's Hospital, Paracelsus Medical University (PMU), Salzburg, Austria
| | - Matias Wagner
- Institute of Human Genetics, Technical University Munich, Munich, Germany.,Institute of Neurogenomics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Hong Li
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA, USA.,Department of Pediatrics, School of Medicine, Children's Healthcare of Atlanta, Emory University, Atlanta, GA, USA
| | - Usha Kini
- Oxford Centre for Genomic Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Emily Davis Black
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA, USA
| | | | - James R Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA.,Texas Children's Hospital, Houston, TX, USA
| | - Sian Ellard
- Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, EX2 5DW, UK.,Institute of Biomedical and Clinical Science, College of Medicine and Health, University of Exeter, Exeter, EX2 5DW, UK
| | - Dominik S Westphal
- Institute of Human Genetics, Technical University Munich, Munich, Germany
| | - Tamar Harel
- Department of Genetics, Hadassah Medical Center, POB 12000, 9112001, Jerusalem, Israel. .,Faculty of Medicine, Hebrew University of Jerusalem, POB 12000, 9112001, Jerusalem, Israel.
| | - Wan Hee Yoon
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA.
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12
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Shoubridge EA. Cutting the Gordian Knot of a Mitochondrial Disease. MED 2021; 2:11-13. [DOI: 10.1016/j.medj.2020.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Wu H, Wang T, Liu Y, Li X, Xu S, Wu C, Zou H, Cao M, Jin G, Lang J, Wang B, Liu B, Luo X, Xu C. Mitophagy promotes sorafenib resistance through hypoxia-inducible ATAD3A dependent Axis. J Exp Clin Cancer Res 2020; 39:274. [PMID: 33280610 PMCID: PMC7720487 DOI: 10.1186/s13046-020-01768-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/05/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The identification of novel targets for recovering sorafenib resistance is pivotal for Hepatocellular carcinoma (HCC) patients. Mitophagy is the programmed degradation of mitochondria, and is likely involved in drug resistance of cancer cells. Here, we identified hyperactivated mitophagy is essential for sorafenib resistance, and the mitophagy core regulator gene ATAD3A (ATPase family AAA domain containing 3A) was down regulated in hypoxia induced resistant HCC cells. Blocking mitophagy may restore the sorafenib sensitivity of these cells and provide a new treatment strategy for HCC patients. METHODS Hypoxia induced sorafenib resistant cancer cells were established by culturing under 1% O2 with increasing drug treatment. RNA sequencing was conducted in transfecting LM3 cells with sh-ATAD3A lentivirus. Subsequent mechanistic studies were performed in HCC cell lines by manipulating ATAD3A expression isogenically where we evaluated drug sensitivity, molecular signaling events. In vivo study, we investigated the combined treatment effect of sorafenib and miR-210-5P antagomir. RESULTS We found a hyperactivated mitophagy regulating by ATAD3A-PINK1/PARKIN axis in hypoxia induced sorafenib resistant HCC cells. Gain- and loss- of ATAD3A were related to hypoxia-induced mitophagy and sorafenib resistance. In addition, ATAD3A is a functional target of miR-210-5p and its oncogenic functions are likely mediated by increased miR-210-5P expression. miR-210-5P was upregulated under hypoxia and participated in regulating sorafenib resistance. In vivo xenograft assay showed that miR-210-5P antagomir combined with sorafenib abrogated the tumorigenic effect of ATAD3A down-regulation in mice. CONCLUSIONS Loss of ATAD3A hyperactivates mitophagy which is a core event in hypoxia induced sorafenib resistance in HCC cells. Targeting miR-210-5P-ATAD3A axis is a novel therapeutic target for sorafenib-resistant HCC.
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Affiliation(s)
- Hong Wu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, 518055, Shenzhen, China
- Integrative Cancer Center&Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, P. R. China
- Department of Experimental Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 510000, P. R. China
| | - Tao Wang
- Department of Gastroenterology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, 400042, P. R. China
| | - Yiqiang Liu
- Integrative Cancer Center&Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, P. R. China
- Department of Experimental Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 510000, P. R. China
| | - Xin Li
- Department of Experimental Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 510000, P. R. China
| | - Senlin Xu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital and Key Laboratory of Tumor Immunopathology, Army Medical University (Third Military Medical University), Chongqing, 400042, P. R. China
| | - Changtao Wu
- Integrative Cancer Center&Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, P. R. China
- Department of Experimental Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 510000, P. R. China
| | - Hongbo Zou
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital and Key Laboratory of Tumor Immunopathology, Army Medical University (Third Military Medical University), Chongqing, 400042, P. R. China
| | - Mianfu Cao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital and Key Laboratory of Tumor Immunopathology, Army Medical University (Third Military Medical University), Chongqing, 400042, P. R. China
| | - Guoxiang Jin
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital and Key Laboratory of Tumor Immunopathology, Army Medical University (Third Military Medical University), Chongqing, 400042, P. R. China
| | - Jinyi Lang
- Integrative Cancer Center&Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, P. R. China
| | - Bin Wang
- Department of Gastroenterology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, 400042, P. R. China
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, 518055, Shenzhen, China.
| | - Xiaolin Luo
- Department of Experimental Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 510000, P. R. China.
| | - Chuan Xu
- Integrative Cancer Center&Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610000, P. R. China.
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14
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Lang L, Loveless R, Teng Y. Emerging Links between Control of Mitochondrial Protein ATAD3A and Cancer. Int J Mol Sci 2020; 21:E7917. [PMID: 33113782 PMCID: PMC7663417 DOI: 10.3390/ijms21217917] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/17/2022] Open
Abstract
Spanning from the mitochondria's outer surface to the inner membrane, the nuclear-encoded protein ATAD3A maintains vital roles in regulating mitochondrial dynamics, homeostasis, metabolism, and interactions with the endoplasmic reticulum. Recently, elevated levels of ATAD3A have been reported in several types of cancer and to be tightly correlated with cancer development and progression, including increased cancer cell potential of proliferation, metastasis, and resistance to chemotherapy and radiotherapy. In the current review, we reveal ATAD3A as the link between mitochondrial functions and cancer biology and the accumulating evidence presenting ATAD3A as an attractive target for the development of novel cancer therapy to inhibit aberrant cancer metabolism and progression.
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Affiliation(s)
- Liwei Lang
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (L.L.); (R.L.)
| | - Reid Loveless
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (L.L.); (R.L.)
| | - Yong Teng
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (L.L.); (R.L.)
- Georgia Cancer Center, Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Medical Laboratory, Imaging and Radiologic Sciences, College of Allied Health, Augusta University, Augusta, GA 30912, USA
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15
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Frazier AE, Compton AG, Kishita Y, Hock DH, Welch AE, Amarasekera SSC, Rius R, Formosa LE, Imai-Okazaki A, Francis D, Wang M, Lake NJ, Tregoning S, Jabbari JS, Lucattini A, Nitta KR, Ohtake A, Murayama K, Amor DJ, McGillivray G, Wong FY, van der Knaap MS, Jeroen Vermeulen R, Wiltshire EJ, Fletcher JM, Lewis B, Baynam G, Ellaway C, Balasubramaniam S, Bhattacharya K, Freckmann ML, Arbuckle S, Rodriguez M, Taft RJ, Sadedin S, Cowley MJ, Minoche AE, Calvo SE, Mootha VK, Ryan MT, Okazaki Y, Stroud DA, Simons C, Christodoulou J, Thorburn DR. Fatal perinatal mitochondrial cardiac failure caused by recurrent de novo duplications in the ATAD3 locus. MED 2020; 2:49-73. [PMID: 33575671 DOI: 10.1016/j.medj.2020.06.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background In about half of all patients with a suspected monogenic disease, genomic investigations fail to identify the diagnosis. A contributing factor is the difficulty with repetitive regions of the genome, such as those generated by segmental duplications. The ATAD3 locus is one such region, in which recessive deletions and dominant duplications have recently been reported to cause lethal perinatal mitochondrial diseases characterized by pontocerebellar hypoplasia or cardiomyopathy, respectively. Methods Whole exome, whole genome and long-read DNA sequencing techniques combined with studies of RNA and quantitative proteomics were used to investigate 17 subjects from 16 unrelated families with suspected mitochondrial disease. Findings We report six different de novo duplications in the ATAD3 gene locus causing a distinctive presentation including lethal perinatal cardiomyopathy, persistent hyperlactacidemia, and frequently corneal clouding or cataracts and encephalopathy. The recurrent 68 Kb ATAD3 duplications are identifiable from genome and exome sequencing but usually missed by microarrays. The ATAD3 duplications result in the formation of identical chimeric ATAD3A/ATAD3C proteins, altered ATAD3 complexes and a striking reduction in mitochondrial oxidative phosphorylation complex I and its activity in heart tissue. Conclusions ATAD3 duplications appear to act in a dominant-negative manner and the de novo inheritance infers a low recurrence risk for families, unlike most pediatric mitochondrial diseases. More than 350 genes underlie mitochondrial diseases. In our experience the ATAD3 locus is now one of the five most common causes of nuclear-encoded pediatric mitochondrial disease but the repetitive nature of the locus means ATAD3 diagnoses may be frequently missed by current genomic strategies. Funding Australian NHMRC, US Department of Defense, Japanese AMED and JSPS agencies, Australian Genomics Health Alliance and Australian Mito Foundation.
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Affiliation(s)
- Ann E Frazier
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia.,These authors contributed equally: A.E. Frazier, A.G. Compton
| | - Alison G Compton
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia.,These authors contributed equally: A.E. Frazier, A.G. Compton
| | - Yoshihito Kishita
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Juntendo University, Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Daniella H Hock
- Department of Biochemistry and Molecular Biology and Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC 3052, Australia
| | - AnneMarie E Welch
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia
| | - Sumudu S C Amarasekera
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Rocio Rius
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Luke E Formosa
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia
| | - Atsuko Imai-Okazaki
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Juntendo University, Graduate School of Medicine, Tokyo, 113-8421, Japan.,Division of Genomic Medicine Research, Medical Genomics Center, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - David Francis
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia
| | - Min Wang
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia
| | - Nicole J Lake
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia.,Department of Genetics, Yale School of Medicine, New Haven, CT 06510, USA
| | - Simone Tregoning
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia
| | - Jafar S Jabbari
- Australian Genome Research Facility Ltd, Victorian Comprehensive Cancer Centre, Melbourne VIC 3052, Australia
| | - Alexis Lucattini
- Australian Genome Research Facility Ltd, Victorian Comprehensive Cancer Centre, Melbourne VIC 3052, Australia
| | - Kazuhiro R Nitta
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Juntendo University, Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Akira Ohtake
- Department of Pediatrics & Clinical Genomics, Saitama Medical University Hospital, Saitama, 350-0495, Japan
| | - Kei Murayama
- Department of Metabolism, Chiba Children's Hospital, Chiba, 266-0007, Japan
| | - David J Amor
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia
| | - George McGillivray
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia
| | - Flora Y Wong
- Ritchie Centre, Hudson Institute of Medical Research; Department of Paediatrics, Monash University; and Monash Newborn, Monash Children's Hospital, Melbourne, VIC 3168, Australia
| | - Marjo S van der Knaap
- Child Neurology, Emma Children's Hospital, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, 1081 HV Amsterdam, The Netherlands.,Functional Genomics, Center for Neurogenomics and Cognitive Research, Vrije Universiteit and Amsterdam Neuroscience, 1081 HV Amsterdam, The Netherlands
| | - R Jeroen Vermeulen
- Department of Neurology, Maastricht University Medical Center, 6229 HX, Maastricht, The Netherlands
| | - Esko J Wiltshire
- Department of Paediatrics and Child Health, University of Otago Wellington and Capital and Coast District Health Board, Wellington 6021, New Zealand
| | - Janice M Fletcher
- Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA 5000, Australia
| | - Barry Lewis
- Department of Clinical Biochemistry, PathWest Laboratory Medicine Western Australia, Nedlands, WA 6009, Australia
| | - Gareth Baynam
- Western Australian Register of Developmental Anomalies and Genetic Services of Western Australia and King Edward Memorial Hospital for Women Perth, Subiaco, WA 6008, Australia.,Telethon Kids Institute and School of Paediatrics and Child Health, The University of Western Australia, Perth, WA 6009, Australia
| | - Carolyn Ellaway
- Genetic Metabolic Disorders Service, Sydney Children's Hospital Network, The Children's Hospital at Westmead, Sydney, NSW 2145, Australia.,Disciplines of Genomic Medicine and Child and Adolescent Health, Sydney Medical School, University of Sydney, NSW 2145, Australia
| | - Shanti Balasubramaniam
- Genetic Metabolic Disorders Service, Sydney Children's Hospital Network, The Children's Hospital at Westmead, Sydney, NSW 2145, Australia
| | - Kaustuv Bhattacharya
- Genetic Metabolic Disorders Service, Sydney Children's Hospital Network, The Children's Hospital at Westmead, Sydney, NSW 2145, Australia.,Disciplines of Genomic Medicine and Child and Adolescent Health, Sydney Medical School, University of Sydney, NSW 2145, Australia
| | | | - Susan Arbuckle
- Department of Histopathology, The Children's Hospital at Westmead, Sydney Children's Hospital Network, Sydney, NSW 2145, Australia
| | - Michael Rodriguez
- Discipline of Pathology, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | | | - Simon Sadedin
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia
| | - Mark J Cowley
- Children's Cancer Institute, Kensington, NSW 2750, Australia; St Vincent's Clinical School, UNSW Sydney, Darlinghurst, NSW 2010, Australia.,Kinghorn Centre for Clinical Genomics, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia
| | - André E Minoche
- Kinghorn Centre for Clinical Genomics, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia
| | - Sarah E Calvo
- Broad Institute, Cambridge, MA 02142, USA; Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Medical School, Boston, MA 02446, USA
| | - Vamsi K Mootha
- Broad Institute, Cambridge, MA 02142, USA; Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Medical School, Boston, MA 02446, USA
| | - Michael T Ryan
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia
| | - Yasushi Okazaki
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Juntendo University, Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - David A Stroud
- Department of Biochemistry and Molecular Biology and Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Cas Simons
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072 Australia
| | - John Christodoulou
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia.,Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Disciplines of Genomic Medicine and Child and Adolescent Health, Sydney Medical School, University of Sydney, NSW 2145, Australia
| | - David R Thorburn
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC 3052, Australia.,Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC 3052, Australia.,Lead contact
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16
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Peralta S, González-Quintana A, Ybarra M, Delmiro A, Pérez-Pérez R, Docampo J, Arenas J, Blázquez A, Ugalde C, Martín MA. Novel ATAD3A recessive mutation associated to fatal cerebellar hypoplasia with multiorgan involvement and mitochondrial structural abnormalities. Mol Genet Metab 2019; 128:452-462. [PMID: 31727539 DOI: 10.1016/j.ymgme.2019.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 11/24/2022]
Abstract
Lethal neonatal encephalopathies are heterogeneous congenital disorders that can be caused by mitochondrial dysfunction. Biallelic large deletions in the contiguous ATAD3B and ATAD3A genes, encoding mitochondrial inner membrane ATPases of unknown function, as well as compound heterozygous nonsense and missense mutations in the ATAD3A gene have been recently associated with fatal neonatal cerebellar hypoplasia. In this work, whole exome sequencing (WES) identified the novel homozygous variant c.1217 T > G in ATAD3A, predicting a p.(Leu406Arg) substitution, in four siblings from a consanguineous family presenting with fatal neonatal cerebellar hypoplasia, seizures, axial hypotonia, hypertrophic cardiomyopathy, hepatomegaly, congenital cataract, and dysmorphic facies. Biochemical phenotypes of the patients included hyperlactatemia and hypocholesterolemia. Healthy siblings and parents were heterozygous for this variant, which is predicted to introduce a polar chain within the catalytic domain of ATAD3A that shortens its beta-sheet structure, presumably affecting protein stability. Accordingly, patient's fibroblasts with the homozygous variant displayed a specific reduction in ATAD3A protein levels associated with profound ultrastructural alterations of mitochondrial cristae and morphology. Our findings exclude the causative role of ATAD3B on this severe phenotype, expand the phenotypical spectrum of ATAD3A pathogenic variants and emphasize the vital role of ATAD3A in mitochondrial biogenesis.
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Affiliation(s)
- Susana Peralta
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Adrián González-Quintana
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain
| | - Marta Ybarra
- Servicio de Neonatología, Hospital Infantil La Paz, 28046 Madrid, Spain
| | - Aitor Delmiro
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain
| | - Rafael Pérez-Pérez
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Jorge Docampo
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain
| | - Joaquín Arenas
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain
| | - Alberto Blázquez
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain
| | - Cristina Ugalde
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain.
| | - Miguel A Martín
- Laboratorio de Enfermedades Raras, Mitocondriales y Neuromusculares, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, U723, 28029 Madrid, Spain
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17
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Al Madhoun A, Alnaser F, Melhem M, Nizam R, Al-Dabbous T, Al-Mulla F. Ketogenic diet attenuates cerebellar atrophy progression in a subject with a biallelic variant at the ATAD3A locus. APPLICATION OF CLINICAL GENETICS 2019; 12:79-86. [PMID: 31239750 PMCID: PMC6556476 DOI: 10.2147/tacg.s194204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 02/28/2019] [Indexed: 11/23/2022]
Abstract
The ATPase AAA-domain protein 3 (ATAD3) is a ubiquitously expressed mitochondrial protein involved in mitochondrial dynamics, DNA-nucleoid structural organization, cholesterol transport and steroidogenesis. Mutations within the ancestral ATAD3A gene are strongly associated with neurological abnormalities due to alterations in the mitochondrial function and homeostasis. Here, we report the case of a subject diagnosed with developmental delay associated with ataxia and progressive atrophy of both cerebellar hemispheres and cerebellar vermis, despite exhibiting a normal biochemical profile. By whole exome sequencing, we identified two biallelic single nucleotide variants within the coding region of ATAD3A in the affected subject. Both variants were previously reported as monoallelic variants with uncertain clinical significance. Importantly, the variant ATAD3A c.251T>C leads to an amino acid change of a highly conserved residue across species and in silico analysis revealed structural alteration in the ATAD3A protein. Ketogenic diet was administered to the subject as a novel therapeutic approach. Notably, the treatment correlated with a reduction in cerebellum atrophy progression and the gradual enhancement of the subject’s physical skills, vitality and personal interactions. Thus, we report the first subject with a homozygous status for the ATAD3A c.251T>C (p.Thr84Met) variant. We propose that this mutation led to an alteration of the mitochondrial function, causing the neurological symptoms observed in the subject. The symptoms were partially alleviated following ketogenic diet, improving the subject’s quality of life.
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Affiliation(s)
- Ashraf Al Madhoun
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait.,Animal and Imaging Core Facility Department, Dasman Diabetes Institute, Dasman, Kuwait City, 15462, Kuwait
| | - Fahad Alnaser
- Radiology Department, Ibn Sina Hospital, Ministry of Health, Kuwait City, Kuwait
| | - Motasem Melhem
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Rasheeba Nizam
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Tala Al-Dabbous
- Bayt Abdullah Children's Hospice, NBK Children's Cancer Hospital, Al- Adan ICU, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
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18
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Frazier AE, Holt IJ, Spinazzola A, Thorburn DR. Reply: Genotype-phenotype correlation in ATAD3A deletions: not just of scientific relevance. Brain 2019; 140:e67. [PMID: 29053800 DOI: 10.1093/brain/awx240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ann E Frazier
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Melbourne VIC 3052, Australia
| | - Ian J Holt
- Biodonostia Health Research Institute, 20014 San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain.,Department of Clinical Neurosciences, Institute of Neurology, Royal Free Campus, University College London, NW3 2PF, UK
| | - Antonella Spinazzola
- Department of Clinical Neurosciences, Institute of Neurology, Royal Free Campus, University College London, NW3 2PF, UK.,MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK
| | - David R Thorburn
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Melbourne VIC 3052, Australia.,Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne VIC 3052, Australia
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19
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Zhao Y, Sun X, Hu D, Prosdocimo DA, Hoppel C, Jain MK, Ramachandran R, Qi X. ATAD3A oligomerization causes neurodegeneration by coupling mitochondrial fragmentation and bioenergetics defects. Nat Commun 2019; 10:1371. [PMID: 30914652 PMCID: PMC6435701 DOI: 10.1038/s41467-019-09291-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/01/2019] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial fragmentation and bioenergetic failure manifest in Huntington’s disease (HD), a fatal neurodegenerative disease. The factors that couple mitochondrial fusion/fission with bioenergetics and their impacts on neurodegeneration however remain poorly understood. Our proteomic analysis identifies mitochondrial protein ATAD3A as an interactor of mitochondrial fission GTPase, Drp1, in HD. Here we show that, in HD, ATAD3A dimerization due to deacetylation at K135 residue is required for Drp1-mediated mitochondrial fragmentation. Disturbance of ATAD3A steady state impairs mtDNA maintenance by disrupting TFAM/mtDNA binding. Blocking Drp1/ATAD3A interaction with a peptide, DA1, abolishes ATAD3A oligomerization, suppresses mitochondrial fragmentation and mtDNA lesion, and reduces bioenergetic deficits and cell death in HD mouse- and patient-derived cells. DA1 treatment reduces behavioral and neuropathological phenotypes in HD transgenic mice. Our findings demonstrate that ATAD3A plays a key role in neurodegeneration by linking Drp1-induced mitochondrial fragmentation to defective mtDNA maintenance, suggesting that DA1 might be useful for developing HD therapeutics. Huntington’s disease leads to mitochondrial fragmentation and bioenergetic failure, although how the two events are connected is poorly understood. Here, Zhao et al. identify ATAD3A as a molecular linker and show that a peptide inhibitor of ATAD3A oligomerization suppresses HD phenotypes.
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Affiliation(s)
- Yuanyuan Zhao
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Xiaoyan Sun
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Di Hu
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Domenick A Prosdocimo
- Case Cardiovascular Research Institute and Harrington Heart and Vascular Institute, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.,Department of Medicine, University Hospitals Case Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Charles Hoppel
- Center for Mitochondrial Disease, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.,Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Mukesh K Jain
- Case Cardiovascular Research Institute and Harrington Heart and Vascular Institute, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.,Department of Medicine, University Hospitals Case Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Rajesh Ramachandran
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Xin Qi
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA. .,Center for Mitochondrial Disease, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.
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20
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Jenko J, McClure MC, Matthews D, McClure J, Johnsson M, Gorjanc G, Hickey JM. Analysis of a large dataset reveals haplotypes carrying putatively recessive lethal and semi-lethal alleles with pleiotropic effects on economically important traits in beef cattle. Genet Sel Evol 2019; 51:9. [PMID: 30836944 PMCID: PMC6402105 DOI: 10.1186/s12711-019-0452-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 02/21/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In livestock, deleterious recessive alleles can result in reduced economic performance of homozygous individuals in multiple ways, e.g. early embryonic death, death soon after birth, or semi-lethality with incomplete penetrance causing reduced viability. While death is an easy phenotype to score, reduced viability is not as easy to identify. However, it can sometimes be observed as reduced conception rates, longer calving intervals, or lower survival for live born animals. METHODS In this paper, we searched for haplotypes that carry putatively recessive lethal or semi-lethal alleles in 132,725 genotyped Irish beef cattle from five breeds: Aberdeen Angus, Charolais, Hereford, Limousin, and Simmental. We phased the genotypes in sliding windows along the genome and used five tests to identify haplotypes with absence of or reduced homozygosity. Then, we associated the identified haplotypes with 44,351 insemination records that indicated early embryonic death, and postnatal survival records. Finally, we assessed haplotype pleiotropy by estimating substitution effects on estimates of breeding value for 15 economically important traits in beef production. RESULTS We found support for one haplotype that carries a putatively recessive lethal (chromosome 16 in Simmental) and two haplotypes that carry semi-lethal alleles (chromosome 14 in Aberdeen Angus and chromosome 19 in Charolais), with population frequencies of 8.8, 15.2, and 14.4%, respectively. These three haplotypes showed pleiotropic effects on economically important traits for beef production. Their allele substitution effects are €2.30, €3.42, and €1.47 for the terminal index and €1.03, - €3.11, and - €0.88 for the replacement index, where the standard deviations for the terminal index are €22.52, €18.65, and €22.70 and for the replacement index they are €31.35, €29.82, and €35.79. We identified ZFAT as the candidate gene for semi-lethality in Aberdeen Angus, several candidate genes for the lethal Simmental haplotype, and no candidate genes for the semi-lethal Charolais haplotype. CONCLUSIONS We analysed genotype, reproduction, survival, and production data to detect haplotypes that carry putatively recessive lethal or semi-lethal alleles in Irish beef cattle and identified one lethal and two semi-lethal haplotypes, which have pleiotropic effects on economically important traits in beef production.
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Affiliation(s)
- Janez Jenko
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush, Midlothian, Scotland, UK
| | | | | | | | - Martin Johnsson
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush, Midlothian, Scotland, UK.,Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Box 7023, 750 07, Uppsala, Sweden
| | - Gregor Gorjanc
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush, Midlothian, Scotland, UK
| | - John M Hickey
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush, Midlothian, Scotland, UK.
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21
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Abstract
The ATPase family AAA-domain containing protein 3A (ATAD3A), a nuclear-encoded mitochondrial enzyme, is involved in diverse cellular processes, including mitochondrial dynamics, cell death and cholesterol metabolism. Overexpression and/or mutation of the ATAD3A gene have been observed in different types of cancer, associated with cancer development and progression. The dysregulated ATAD3A acts as a broker of a mitochondria-endoplasmic reticulum connection in cancer cells, and inhibition of this enzyme leads to tumor repression and enhanced sensitivity to chemotherapy and radiation. As such, ATAD3A is a promising drug target in cancer treatment.
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22
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Peralta S, Goffart S, Williams SL, Diaz F, Garcia S, Nissanka N, Area-Gomez E, Pohjoismäki J, Moraes CT. ATAD3 controls mitochondrial cristae structure in mouse muscle, influencing mtDNA replication and cholesterol levels. J Cell Sci 2018; 131:jcs217075. [PMID: 29898916 PMCID: PMC6051345 DOI: 10.1242/jcs.217075] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/30/2018] [Indexed: 01/01/2023] Open
Abstract
Mutations in the mitochondrial inner membrane ATPase ATAD3A result in neurological syndromes in humans. In mice, the ubiquitous disruption of Atad3 (also known as Atad3a) was embryonic lethal, but a skeletal muscle-specific conditional knockout (KO) was viable. At birth, ATAD3 muscle KO mice had normal weight, but from 2 months onwards they showed progressive motor-impaired coordination and weakness. Loss of ATAD3 caused early and severe mitochondrial structural abnormalities, mitochondrial proliferation and muscle atrophy. There was dramatic reduction in mitochondrial cristae junctions and overall cristae morphology. The lack of mitochondrial cristae was accompanied by a reduction in high molecular weight mitochondrial contact site and cristae organizing system (MICOS) complexes, and to a lesser extent in OPA1. Moreover, muscles lacking ATAD3 showed altered cholesterol metabolism, accumulation of mitochondrial DNA (mtDNA) replication intermediates, progressive mtDNA depletion and deletions. Unexpectedly, decreases in the levels of some OXPHOS components occurred after cristae destabilization, indicating that ATAD3 is not crucial for mitochondrial translation, as previously suggested. Our results show a critical early role of ATAD3 in regulating mitochondrial inner membrane structure, leading to secondary defects in mtDNA replication and complex V and cholesterol levels in postmitotic tissue.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Susana Peralta
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Steffi Goffart
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu 80101, Finland
| | - Sion L Williams
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Francisca Diaz
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Sofia Garcia
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Nadee Nissanka
- Neuroscience Graduate Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Estela Area-Gomez
- Department of Neurology, Columbia University Medical Center, New York, NY 10032, USA
| | - Jaakko Pohjoismäki
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu 80101, Finland
| | - Carlos T Moraes
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Neuroscience Graduate Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Cell Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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23
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Bagli E, Zikou AK, Agnantis N, Kitsos G. Mitochondrial Membrane Dynamics and Inherited Optic Neuropathies. ACTA ACUST UNITED AC 2018; 31:511-525. [PMID: 28652416 DOI: 10.21873/invivo.11090] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 04/14/2017] [Accepted: 04/19/2017] [Indexed: 12/12/2022]
Abstract
Inherited optic neuropathies are a genetically diverse group of disorders mainly characterized by visual loss and optic atrophy. Since the first recognition of Leber's hereditary optic neuropathy, several genetic defects altering primary mitochondrial respiration have been proposed to contribute to the development of syndromic and non-syndromic optic neuropathies. Moreover, the genomics and imaging revolution in the past decade has increased diagnostic efficiency and accuracy, allowing recognition of a link between mitochondrial dynamics machinery and a broad range of inherited neurodegenerative diseases involving the optic nerve. Mutations of novel genes modifying mainly the balance between mitochondrial fusion and fission have been shown to lead to overlapping clinical phenotypes ranging from isolated optic atrophy to severe, sometimes lethal multisystem disorders, and are reviewed herein. Given the particular vulnerability of retinal ganglion cells to mitochondrial dysfunction, the accessibility of the eye as a part of the central nervous system and improvements in technical imaging concerning assessment of the retinal nerve fiber layer, optic nerve evaluation becomes critical - even in asymptomatic patients - for correct diagnosis, understanding and early treatment of these complex and enigmatic clinical entities.
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Affiliation(s)
- Eleni Bagli
- Institute of Molecular Biology and Biotechnology-FORTH, Division of Biomedical Research, Ioannina, Greece.,Department of Ophthalmology, University of Ioannina, Ioannina, Greece
| | - Anastasia K Zikou
- Department of Clinical Radiology, University of Ioannina, Ioannina, Greece
| | - Niki Agnantis
- Department of Pathology, University of Ioannina, Ioannina, Greece
| | - Georgios Kitsos
- Department of Ophthalmology, University of Ioannina, Ioannina, Greece
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24
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Chen D, Yuan X, Liu L, Zhang M, Qu B, Zhen Z, Gao X. Mitochondrial ATAD3A regulates milk biosynthesis and proliferation of mammary epithelial cells from dairy cow via the mTOR pathway. Cell Biol Int 2018; 42:533-542. [DOI: 10.1002/cbin.10929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/26/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Dongying Chen
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
| | - Xiaohan Yuan
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
| | - Lijie Liu
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
| | - Minghui Zhang
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
| | - Bo Qu
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
| | - Zhen Zhen
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
| | - Xuejun Gao
- The Key Laboratory of Dairy Science of Education Ministry; Northeast Agricultural University; Harbin 150030 China
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25
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Hussain M, Zhou Y, Song Y, Hameed HMA, Jiang H, Tu Y, Zhang J. ATAD2 in cancer: a pharmacologically challenging but tractable target. Expert Opin Ther Targets 2017; 22:85-96. [PMID: 29148850 DOI: 10.1080/14728222.2018.1406921] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION ATAD2 protein is an emerging oncogene that has strongly been linked to the etiology of multiple advanced human cancers. Therapeutically, despite the fact that genetic suppression/knockdown studies have validated it as a compelling drug target for future therapeutic development, recent druggability assessment data suggest that direct targeting of ATAD2's bromodomain (BRD) may be a very challenging task. ATAD2's BRD has been predicted as a 'difficult to drug' or 'least druggable' target due to the concern that its binding pocket, and the areas around it, seem to be unfeasible for ligand binding. Areas covered: In this review, after shedding light on the multifaceted roles of ATAD2 in normal physiology as well as in cancer-etiology, we discuss technical challenges rendered by ATAD2's BRD active site and the recent drug discovery efforts to find small molecule inhibitors against it. Expert opinion: The identification of a novel low-nanomolar semi-permeable chemical probe against ATAD2's BRD by recent drug discovery campaign has demonstrated it to be a pharmacologically tractable target. Nevertheless, the development of high quality bioavailable inhibitors against ATAD2 is still a pending task. Moreover, ATAD2 may also potentially be utilized as a promising target for future development of RNAi-based therapy to treat cancers.
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Affiliation(s)
- Muzammal Hussain
- a State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Heath, Chinese Academy of Sciences , Guangzhou , PR China.,b Guangdong Provincial Key Laboratory of Biocomputing, Institute of Chemical Biology , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , Guangzhou China.,c University of Chinese Academy of Sciences , Beijing , PR China
| | - Yang Zhou
- d Division of Theoretical Chemistry and Biology, School of Biotechnology , Royal Institute of Technology (KTH), AlbaNova University Center , Stockholm , Sweden
| | - Yu Song
- e Basic Medical College of Beihua University , Jilin , China
| | - H M Adnan Hameed
- a State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Heath, Chinese Academy of Sciences , Guangzhou , PR China.,c University of Chinese Academy of Sciences , Beijing , PR China
| | - Hao Jiang
- a State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Heath, Chinese Academy of Sciences , Guangzhou , PR China.,b Guangdong Provincial Key Laboratory of Biocomputing, Institute of Chemical Biology , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , Guangzhou China
| | - Yaoquan Tu
- d Division of Theoretical Chemistry and Biology, School of Biotechnology , Royal Institute of Technology (KTH), AlbaNova University Center , Stockholm , Sweden
| | - Jiancun Zhang
- a State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Heath, Chinese Academy of Sciences , Guangzhou , PR China.,b Guangdong Provincial Key Laboratory of Biocomputing, Institute of Chemical Biology , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , Guangzhou China
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26
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Jin G, Xu C, Zhang X, Long J, Rezaeian AH, Liu C, Furth ME, Kridel S, Pasche B, Bian XW, Lin HK. Atad3a suppresses Pink1-dependent mitophagy to maintain homeostasis of hematopoietic progenitor cells. Nat Immunol 2017; 19:29-40. [PMID: 29242539 DOI: 10.1038/s41590-017-0002-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 10/04/2017] [Indexed: 01/13/2023]
Abstract
Although deletion of certain autophagy-related genes has been associated with defects in hematopoiesis, it remains unclear whether hyperactivated mitophagy affects the maintenance and differentiation of hematopoietic stem cells (HSCs) and committed progenitor cells. Here we report that targeted deletion of the gene encoding the AAA+-ATPase Atad3a hyperactivated mitophagy in mouse hematopoietic cells. Affected mice showed reduced survival, severely decreased bone-marrow cellularity, erythroid anemia and B cell lymphopenia. Those phenotypes were associated with skewed differentiation of stem and progenitor cells and an enlarged HSC pool. Mechanistically, Atad3a interacted with the mitochondrial channel components Tom40 and Tim23 and served as a bridging factor to facilitate appropriate transportation and processing of the mitophagy protein Pink1. Loss of Atad3a caused accumulation of Pink1 and activated mitophagy. Notably, deletion of Pink1 in Atad3a-deficient mice significantly 'rescued' the mitophagy defect, which resulted in restoration of the progenitor and HSC pools. Our data indicate that Atad3a suppresses Pink1-dependent mitophagy and thereby serves a key role in hematopoietic homeostasis.
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Affiliation(s)
- Guoxiang Jin
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.,Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chuan Xu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.,Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Oncology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Xian Zhang
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jie Long
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Pathology School of Basic Medical Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Abdol Hossein Rezaeian
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chunfang Liu
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mark E Furth
- Wake Forest Innovations, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Steven Kridel
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Boris Pasche
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA. .,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. .,Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. .,Department of Biotechnology, Asia University, Taichung, Taiwan.
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27
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Baudier J. ATAD3 proteins: brokers of a mitochondria-endoplasmic reticulum connection in mammalian cells. Biol Rev Camb Philos Soc 2017; 93:827-844. [PMID: 28941010 DOI: 10.1111/brv.12373] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/22/2017] [Accepted: 08/25/2017] [Indexed: 12/25/2022]
Abstract
In yeast, a sequence of physical and genetic interactions termed the endoplasmic reticulum (ER)-mitochondria organizing network (ERMIONE) controls mitochondria-ER interactions and mitochondrial biogenesis. Several functions that characterize ERMIONE complexes are conserved in mammalian cells, suggesting that a similar tethering complex must exist in metazoans. Recent studies have identified a new family of nuclear-encoded ATPases associated with diverse cellular activities (AAA+-ATPase) mitochondrial membrane proteins specific to multicellular eukaryotes, called the ATPase family AAA domain-containing protein 3 (ATAD3) proteins (ATAD3A and ATAD3B). These proteins are crucial for normal mitochondrial-ER interactions and lie at the heart of processes underlying mitochondrial biogenesis. ATAD3A orthologues have been studied in flies, worms, and mammals, highlighting the widespread importance of this gene during embryonic development and in adulthood. ATAD3A is a downstream effector of target of rapamycin (TOR) signalling in Drosophila and exhibits typical features of proteins from the ERMIONE-like complex in metazoans. In humans, mutations in the ATAD3A gene represent a new link between altered mitochondrial-ER interaction and recognizable neurological syndromes. The primate-specific ATAD3B protein is a biomarker of pluripotent embryonic stem cells. Through negative regulation of ATAD3A function, ATAD3B supports mitochondrial stemness properties.
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Affiliation(s)
- Jacques Baudier
- Aix Marseille Université, CNRS, IBDM, 13284, Marseille Cedex 07, France.,Institut de Biologie du Développement de Marseille-UMR CNRS 7288, 13288, Marseille Cedex 9, France
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28
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Chu C, Zhao C, Zhang Z, Wang M, Zhang Z, Yang A, Ma B, Gu M, Cui R, Xin Z, Huang T, Zhou W. Transcriptome analysis of primary aldosteronism in adrenal glands and controls. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:10009-10018. [PMID: 31966891 PMCID: PMC6965943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 08/01/2017] [Indexed: 06/10/2023]
Abstract
Primary aldosteronism (PA) is the most common form of endocrine hypertension. This study was to investigate the gene expression profile in PA adrenal glands and normal controls using RNA-Sequencing. By performing transcriptome analyses for 3 PA adrenal glands and 3 controls on Illumina platform, we identified 1,093 transcripts as significantly differently expressed genes (DEGs), which provided clues for further study of these transcript changes during PA pathogenesis. Further, Gene Set Enrichment Analysis (GSEA) identified 35 significant Kyoto Encyclopedia of Genes and Genomes (KEGG) biological pathways, including 'ribosome', 'oxidative phosphorylation', 'histidine metabolism', 'xenobiotics metabolism by Cytochrome P450', 'drug metabolism by Cytochrome P450', 'tyrosine metabolism' and 'glutathione metabolism'. In summary, we identified novel genes that are associated with PA phenotype, as well as differently regulated biological pathways relating to protein synthesis, energy acquisition and metabolism. Our study provides new candidates for further elucidation of the molecular mechanisms underlying PA pathogenesis.
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Affiliation(s)
- Chenlong Chu
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Chenhui Zhao
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Zhiwei Zhang
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Mingwei Wang
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Zhaohui Zhang
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Anqing Yang
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Binbin Ma
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Meizhen Gu
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Renjie Cui
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Zhixiang Xin
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Tao Huang
- Department of Urology, Ruijin Hospital Luwan Branch Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
| | - Wenlong Zhou
- Department of Urology, Ruijin Hospital Affiliated to The Shanghai Jiaotong University Medical SchoolShanghai, PR China
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29
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Cooper HM, Yang Y, Ylikallio E, Khairullin R, Woldegebriel R, Lin KL, Euro L, Palin E, Wolf A, Trokovic R, Isohanni P, Kaakkola S, Auranen M, Lönnqvist T, Wanrooij S, Tyynismaa H. ATPase-deficient mitochondrial inner membrane protein ATAD3A disturbs mitochondrial dynamics in dominant hereditary spastic paraplegia. Hum Mol Genet 2017; 26:1432-1443. [PMID: 28158749 PMCID: PMC5393146 DOI: 10.1093/hmg/ddx042] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/24/2017] [Indexed: 01/02/2023] Open
Abstract
De novo mutations in ATAD3A (ATPase family AAA-domain containing protein 3A) were recently found to cause a neurological syndrome with developmental delay, hypotonia, spasticity, optic atrophy, axonal neuropathy, and hypertrophic cardiomyopathy. Using whole-exome sequencing, we identified a dominantly inherited heterozygous variant c.1064G > A (p.G355D) in ATAD3A in a mother presenting with hereditary spastic paraplegia (HSP) and axonal neuropathy and her son with dyskinetic cerebral palsy, both with disease onset in childhood. HSP is a clinically and genetically heterogeneous disorder of the upper motor neurons. Symptoms beginning in early childhood may resemble spastic cerebral palsy. The function of ATAD3A, a mitochondrial inner membrane AAA ATPase, is yet undefined. AAA ATPases form hexameric rings, which are catalytically dependent on the co-operation of the subunits. The dominant-negative patient mutation affects the Walker A motif, which is responsible for ATP binding in the AAA module of ATAD3A, and we show that the recombinant mutant ATAD3A protein has a markedly reduced ATPase activity. We further show that overexpression of the mutant ATAD3A fragments the mitochondrial network and induces lysosome mass. Similarly, we observed altered dynamics of the mitochondrial network and increased lysosomes in patient fibroblasts and neurons derived through differentiation of patient-specific induced pluripotent stem cells. These alterations were verified in patient fibroblasts to associate with upregulated basal autophagy through mTOR inactivation, resembling starvation. Mutations in ATAD3A can thus be dominantly inherited and underlie variable neurological phenotypes, including HSP, with intrafamiliar variability. This finding extends the group of mitochondrial inner membrane AAA proteins associated with spasticity.
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Affiliation(s)
- Helen M Cooper
- Åbo Akademi University, Faculty of Natural Sciences and Technology, Turku, Finland
| | - Yang Yang
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland.,Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, P.R. China
| | - Emil Ylikallio
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland.,Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Rafil Khairullin
- Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden.,Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Rosa Woldegebriel
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
| | - Kai-Lan Lin
- Åbo Akademi University, Faculty of Natural Sciences and Technology, Turku, Finland
| | - Liliya Euro
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
| | - Eino Palin
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
| | - Alexander Wolf
- Institute of Molecular Toxicology and Pharmacology, Helmholtz-Zentrum Muenchen-German Research Center for Environmental Health, Neuherberg, Germany
| | - Ras Trokovic
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
| | - Pirjo Isohanni
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland.,Department of Child Neurology, Children's Hospital, Helsinki University Hospital, Helsinki, Finland
| | - Seppo Kaakkola
- Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mari Auranen
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland.,Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tuula Lönnqvist
- Department of Child Neurology, Children's Hospital, Helsinki University Hospital, Helsinki, Finland
| | - Sjoerd Wanrooij
- Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
| | - Henna Tyynismaa
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland.,Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
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Baculovirus LEF-11 Hijack Host ATPase ATAD3A to Promote Virus Multiplication in Bombyx mori cells. Sci Rep 2017; 7:46187. [PMID: 28393927 PMCID: PMC5385504 DOI: 10.1038/srep46187] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/10/2017] [Indexed: 11/22/2022] Open
Abstract
Research on molecular mechanisms that viruses use to regulate the host apparatus is important in virus infection control and antiviral therapy exploration. Our previous research showed that the Bombyx mori nucleopolyhedrovirus (BmNPV) LEF-11 localized to dense regions of the cell nucleus and is required for viral DNA replication. Herein, we examined the mechanism of LEF-11 on BmNPV multiplication and demonstrated that baculovirus LEF-11 interacts with Bombyx mori ATAD3A and HSPD1 (HSP60) protein. Furthermore, we showed that LEF-11 has the ability to induce and up-regulate the expression of ATAD3A and HSPD1, phenomena that were both reversed upon knockdown of lef-11. Our findings showed that ATAD3A and HSPD1 were necessary and contributed to BmNPV multiplication in Bombyx mori cells. Moreover, ATAD3A was found to directly interact with HSPD1. Interestingly, ATAD3A was required for the expression of HSPD1, while the knockdown of HSPD1 had no obvious effect on the expression level of ATAD3A. Taken together, the data presented in the current study demonstrated that baculovirus LEF-11 hijacks the host ATPase family members, ATAD3A and HSPD1, efficiently promote the multiplication of the virus. This study furthers our understanding of how baculovirus modulates energy metabolism of the host and provides a new insight into the molecular mechanisms of antiviral research.
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Harel T, Yoon WH, Garone C, Gu S, Coban-Akdemir Z, Eldomery MK, Posey JE, Jhangiani SN, Rosenfeld JA, Cho MT, Fox S, Withers M, Brooks SM, Chiang T, Duraine L, Erdin S, Yuan B, Shao Y, Moussallem E, Lamperti C, Donati MA, Smith JD, McLaughlin HM, Eng CM, Walkiewicz M, Xia F, Pippucci T, Magini P, Seri M, Zeviani M, Hirano M, Hunter JV, Srour M, Zanigni S, Lewis RA, Muzny DM, Lotze TE, Boerwinkle E, Gibbs RA, Hickey SE, Graham BH, Yang Y, Buhas D, Martin DM, Potocki L, Graziano C, Bellen HJ, Lupski JR, Bellen HJ, Lupski JR. Recurrent De Novo and Biallelic Variation of ATAD3A, Encoding a Mitochondrial Membrane Protein, Results in Distinct Neurological Syndromes. Am J Hum Genet 2016; 99:831-845. [PMID: 27640307 DOI: 10.1016/j.ajhg.2016.08.007] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 08/04/2016] [Indexed: 12/22/2022] Open
Abstract
ATPase family AAA-domain containing protein 3A (ATAD3A) is a nuclear-encoded mitochondrial membrane protein implicated in mitochondrial dynamics, nucleoid organization, protein translation, cell growth, and cholesterol metabolism. We identified a recurrent de novo ATAD3A c.1582C>T (p.Arg528Trp) variant by whole-exome sequencing (WES) in five unrelated individuals with a core phenotype of global developmental delay, hypotonia, optic atrophy, axonal neuropathy, and hypertrophic cardiomyopathy. We also describe two families with biallelic variants in ATAD3A, including a homozygous variant in two siblings, and biallelic ATAD3A deletions mediated by nonallelic homologous recombination (NAHR) between ATAD3A and gene family members ATAD3B and ATAD3C. Tissue-specific overexpression of borR534W, the Drosophila mutation homologous to the human c.1582C>T (p.Arg528Trp) variant, resulted in a dramatic decrease in mitochondrial content, aberrant mitochondrial morphology, and increased autophagy. Homozygous null bor larvae showed a significant decrease of mitochondria, while overexpression of borWT resulted in larger, elongated mitochondria. Finally, fibroblasts of an affected individual exhibited increased mitophagy. We conclude that the p.Arg528Trp variant functions through a dominant-negative mechanism that results in small mitochondria that trigger mitophagy, resulting in a reduction in mitochondrial content. ATAD3A variation represents an additional link between mitochondrial dynamics and recognizable neurological syndromes, as seen with MFN2, OPA1, DNM1L, and STAT2 mutations.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Hugo J Bellen
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Howard Hughes Medical Institute, Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Program in Developmental Biology, Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Department of Neuroscience, Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA
| | - James R Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA.
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von Lowtzow C, Hofmann A, Zhang R, Marsch F, Ebert AK, Rösch W, Stein R, Boemers TM, Hirsch K, Marcelis C, Feitz WFJ, Brusco A, Migone N, Di Grazia M, Moebus S, Nöthen MM, Reutter H, Ludwig M, Draaken M. CNV analysis in 169 patients with bladder exstrophy-epispadias complex. BMC MEDICAL GENETICS 2016; 17:35. [PMID: 27138190 PMCID: PMC4852408 DOI: 10.1186/s12881-016-0299-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 04/22/2016] [Indexed: 12/28/2022]
Abstract
Background The bladder exstrophy-epispadias complex (BEEC) represents the severe end of the congenital uro-rectal malformation spectrum. Initial studies have implicated rare copy number variations (CNVs), including recurrent duplications of chromosomal region 22q11.21, in BEEC etiology. Methods To detect further CNVs, array analysis was performed in 169 BEEC patients. Prior to inclusion, 22q11.21 duplications were excluded using multiplex ligation-dependent probe amplification. Results Following the application of stringent filter criteria, seven rare CNVs were identified: n = 4, not present in 1307 in-house controls; n = 3, frequency of <0.002 in controls. These CNVs ranged from 1 to 6.08 Mb in size. To identify smaller CNVs, relaxed filter criteria used in the detection of previously reported BEEC associated chromosomal regions were applied. This resulted in the identification of six additional rare CNVs: n = 4, not present in 1307 in-house controls; n = 2, frequency <0.0008 in controls. These CNVs ranged from 0.03–0.08 Mb in size. For 10 of these 13 CNVs, confirmation and segregation analyses were performed (5 of maternal origin; 5 of paternal origin). Interestingly, one female with classic bladder extrophy carried a 1.18 Mb duplication of 22q11.1, a chromosomal region that is associated with cat eye syndrome. Conclusions A number of rare CNVs were identified in BEEC patients, and these represent candidates for further evaluation. Rare inherited CNVs may constitute modifiers of, or contributors to, multifactorial BEEC phenotypes.
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Affiliation(s)
| | - Andrea Hofmann
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, Bonn, Germany
| | - Rong Zhang
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, Bonn, Germany
| | - Florian Marsch
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | | | - Wolfgang Rösch
- Department of Pediatric Urology, St. Hedwig Hospital Barmherzige Brüder, Regensburg, Germany
| | - Raimund Stein
- Department of Pediatric and Adolescent Urology, University of Mannheim, Mannheim, Germany
| | - Thomas M Boemers
- Department of Pediatric Surgery and Pediatric Urology, Children's Hospital of Cologne, Cologne, Germany
| | - Karin Hirsch
- Department of Urology, Division of Pediatric Urology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Carlo Marcelis
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Wouter F J Feitz
- Pediatric Urology Center, Department of Urology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Alfredo Brusco
- Department of Medical Sciences and Medical Genetics Unit, Città della Salute e della Scienza University Hospital, University of Torino, Torino, Italy
| | - Nicola Migone
- Department of Medical Sciences and Medical Genetics Unit, Città della Salute e della Scienza University Hospital, University of Torino, Torino, Italy
| | - Massimo Di Grazia
- Institute for Maternal and Child Health, IRCCS Burlo Garofalo, Trieste, Italy
| | - Susanne Moebus
- Institute of Medical Informatics, Biometry, and Epidemiology, University Hospital of Essen, University Duisburg-Essen, Essen, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, Bonn, Germany
| | - Heiko Reutter
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Neonatology and Pediatric Intensive Care, University of Bonn, Bonn, Germany
| | - Michael Ludwig
- Department of Clinical Chemistry and Clinical Pharmacology, University of Bonn, Sigmund-Freud-Str. 25, Bonn, D-53127, Germany.
| | - Markus Draaken
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, Bonn, Germany
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Li S, Bouzar C, Cottet-Rousselle C, Zagotta I, Lamarche F, Wabitsch M, Tokarska-Schlattner M, Fischer-Posovszky P, Schlattner U, Rousseau D. Resveratrol inhibits lipogenesis of 3T3-L1 and SGBS cells by inhibition of insulin signaling and mitochondrial mass increase. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2016; 1857:643-52. [PMID: 26968895 DOI: 10.1016/j.bbabio.2016.03.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 03/02/2016] [Accepted: 03/07/2016] [Indexed: 02/06/2023]
Abstract
Resveratrol is attracting much interest because of its potential to decrease body weight and increase life span, influencing liver and muscle function by increasing mitochondrial mass and energy expenditure. Even though resveratrol was already shown to reduce the adipose tissue mass in animal models, its effects on mitochondrial mass and network structure in adipocytes have not yet been studied. For this purpose, we investigated the effect of resveratrol on mitochondrial mass increase and remodeling during adipogenic differentiation of two in vitro models of adipocyte biology, the murine 3T3-L1 cell line and the human SGBS cell strain. We confirm that resveratrol inhibits lipogenesis in differentiating adipocytes, both mouse and human. We further show that this is linked to inhibition of the normally observed mitochondrial mass increase and mitochondrial remodeling. At the molecular level, the anti-lipogenic effect of resveratrol seems to be mediated by a blunted expression increase and an inhibition of acetyl-CoA carboxylase (ACC). This is one of the consequences of an inhibited insulin-induced signaling via Akt, and maintained signaling via AMP-activated protein kinase. The anti-lipogenic effect of resveratrol is further modulated by expression levels of mitochondrial ATAD3, consistent with the emerging role of this protein as an important regulator of mitochondrial biogenesis and lipogenesis. Our data suggest that resveratrol acts on differentiating preadipocytes by inhibiting insulin signaling, mitochondrial biogenesis, and lipogenesis, and that resveratrol-induced reduction of mitochondrial biogenesis and lipid storage contribute to adipose tissue weight loss in animals and humans.
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Affiliation(s)
- Shuijie Li
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France
| | - Célia Bouzar
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France
| | - Cécile Cottet-Rousselle
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France
| | - Ivana Zagotta
- Division of Pediatric Endocrinology and Diabetes, Obesity Unit Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Germany
| | - Frédéric Lamarche
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Obesity Unit Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Germany
| | - Malgorzata Tokarska-Schlattner
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France
| | - Pamela Fischer-Posovszky
- Division of Pediatric Endocrinology and Diabetes, Obesity Unit Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Germany
| | - Uwe Schlattner
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France
| | - Denis Rousseau
- Univ. Grenoble Alpes, Laboratory for Fundamental and Applied Bioenergetics (LBFA), Grenoble, France; Inserm U1055, Grenoble, France.
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van den Ecker D, Hoffmann M, Müting G, Maglioni S, Herebian D, Mayatepek E, Ventura N, Distelmaier F. Caenorhabditis elegans ATAD-3 modulates mitochondrial iron and heme homeostasis. Biochem Biophys Res Commun 2015; 467:389-94. [PMID: 26427876 DOI: 10.1016/j.bbrc.2015.09.143] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 09/26/2015] [Indexed: 12/14/2022]
Abstract
ATAD3 (ATPase family AAA domain-containing protein 3) is a mitochondrial protein, which is essential for cell viability and organismal development. ATAD3 has been implicated in several important cellular processes such as apoptosis regulation, respiratory chain function and steroid hormone biosynthesis. Moreover, altered expression of ATAD3 has been associated with several types of cancer. However, the exact mechanisms underlying ATAD3 effects on cellular metabolism remain largely unclear. Here, we demonstrate that Caenorhabditis elegans ATAD-3 is involved in mitochondrial iron and heme homeostasis. Knockdown of atad-3 caused mitochondrial iron- and heme accumulation. This was paralleled by changes in the expression levels of several iron- and heme-regulatory genes as well as an increased heme uptake. In conclusion, our data indicate a regulatory role of C. elegans ATAD-3 in mitochondrial iron and heme metabolism.
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Affiliation(s)
- Daniela van den Ecker
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Michael Hoffmann
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Gesine Müting
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Silvia Maglioni
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich-Heine-University and the IUF- Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225 Düsseldorf, Germany
| | - Diran Herebian
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Natascia Ventura
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich-Heine-University and the IUF- Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225 Düsseldorf, Germany
| | - Felix Distelmaier
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany.
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Mitochondrial ATAD3A combines with GRP78 to regulate the WASF3 metastasis-promoting protein. Oncogene 2015; 35:333-43. [PMID: 25823022 PMCID: PMC4828935 DOI: 10.1038/onc.2015.86] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 01/26/2015] [Accepted: 02/16/2015] [Indexed: 02/08/2023]
Abstract
AAA domain containing 3A (ATAD3A) is an integral mitochondrial membrane protein with unknown function, although we now show that high-level expression is associated with poor survival in breast cancer patients. Using a mass spectrometry approach we have demonstrated that ATAD3A interacts with the WASF3 metastasis-promoting protein. Knockdown of ATAD3A leads to decreased WASF3 protein levels in breast and colon cancer cells. Silencing ATAD3A also results in loss of both cell anchorage-independent growth and invasion and suppression of tumor growth and metastasis in vivo using immuno-compromised mice. HSP70 is responsible for stabilizing WASF3 in the cytoplasm, but inactivation of HSP70 does not lead to the loss of WASF3 stability at the mitochondrial membrane, where presumably it is protected through its interaction with ATAD3A. In response to endoplasmic reticulum (ER) stress, increases in the GRP78 protein level leads to increased WASF3 protein levels. We also show that ATAD3A was present in a WASF3-GRP78 complex, and suppression of GRP78 led to destabilization of WASF3 at the mitochondrial membrane, which was ATAD3A dependent. Furthermore, ATAD3A-mediated suppression of CDH1/E-cadherin occurs through its regulation of GRP78-mediated WASF3 stability. Proteolysis experiments using isolated mitochondria demonstrates the presence of the N-terminal end of WASF3 within the mitochondria, which is the interaction site with the N-terminal end of ATAD3A. It appears, therefore, that stabilization of WASF3 function occurs through its interaction with ATAD3A and GRP78, which may provide a bridge between the ER and mitochondria, allowing communication between the two organelles. These findings also suggest that pharmacologic inhibition of ATAD3A could be an effective therapeutic strategy to treat human cancer.
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Li S, Lamarche F, Charton R, Delphin C, Gires O, Hubstenberger A, Schlattner U, Rousseau D. Expression analysis of ATAD3 isoforms in rodent and human cell lines and tissues. Gene 2014; 535:60-9. [DOI: 10.1016/j.gene.2013.10.062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 10/28/2013] [Accepted: 10/31/2013] [Indexed: 11/26/2022]
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Schlattner U, Tokarska-Schlattner M, Rousseau D, Boissan M, Mannella C, Epand R, Lacombe ML. Mitochondrial cardiolipin/phospholipid trafficking: the role of membrane contact site complexes and lipid transfer proteins. Chem Phys Lipids 2013; 179:32-41. [PMID: 24373850 DOI: 10.1016/j.chemphyslip.2013.12.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 12/17/2013] [Accepted: 12/19/2013] [Indexed: 11/18/2022]
Abstract
Historically, cellular trafficking of lipids has received much less attention than protein trafficking, mostly because its biological importance was underestimated, involved sorting and translocation mechanisms were not known, and analytical tools were limiting. This has changed during the last decade, and we discuss here some progress made in respect to mitochondria and the trafficking of phospholipids, in particular cardiolipin. Different membrane contact site or junction complexes and putative lipid transfer proteins for intra- and intermembrane lipid translocation have been described, involving mitochondrial inner and outer membrane, and the adjacent membranes of the endoplasmic reticulum. An image emerges how cardiolipin precursors, remodeling intermediates, mature cardiolipin and its oxidation products could migrate between membranes, and how this trafficking is involved in cardiolipin biosynthesis and cell signaling events. Particular emphasis in this review is given to mitochondrial nucleoside diphosphate kinase D and mitochondrial creatine kinases, which emerge to have roles in both, membrane junction formation and lipid transfer.
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Affiliation(s)
- Uwe Schlattner
- Univ. Grenoble-Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA) and SFR Environmental and Systems Biology (BEeSy), Grenoble, France; Inserm, U1055, Grenoble, France.
| | - Malgorzata Tokarska-Schlattner
- Univ. Grenoble-Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA) and SFR Environmental and Systems Biology (BEeSy), Grenoble, France; Inserm, U1055, Grenoble, France
| | - Denis Rousseau
- Univ. Grenoble-Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA) and SFR Environmental and Systems Biology (BEeSy), Grenoble, France; Inserm, U1055, Grenoble, France
| | - Mathieu Boissan
- UPMC Université Paris 06, Paris, France; Inserm, UMRS938, Paris, France; Hôpital Tenon, AP-HP, Service de Biochimie et Hormonologie, Paris, France
| | - Carmen Mannella
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Richard Epand
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
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