1
|
Schipani A, Nannini M, Astolfi A, Pantaleo MA. SDHA Germline Mutations in SDH-Deficient GISTs: A Current Update. Genes (Basel) 2023; 14:genes14030646. [PMID: 36980917 PMCID: PMC10048394 DOI: 10.3390/genes14030646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/17/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
Loss of function of the succinate dehydrogenase complex characterizes 20–40% of all KIT/PDGFRA-negative GIST. Approximately half of SDH-deficient GIST patients lack SDHx mutations and are caused by a hypermethylation of the SDHC promoter, which causes the repression of SDHC transcription and depletion of SDHC protein levels through a mechanism described as epimutation. The remaining 50% of SDH-deficient GISTs have mutations in one of the SDH subunits and SDHA mutations are the most common (30%), with consequent loss of SDHA and SDHB protein expression immunohistochemically. SDHB, SDHC, and SDHD mutations in GIST occur in only 20–30% of cases and most of these SDH mutations are germline. More recently, germline mutations in SDHA have also been described in several patients with loss of function of the SDH complex. SDHA-mutant patients usually carry two mutational events at the SDHA locus, either the loss of the wild type allele or a second somatic event in compound heterozygosis. This review provides an overview of all data in the literature regarding SDHA-mutated GIST, especially focusing on the prevalence of germline mutations in SDH-deficient GIST populations who harbor SDHA somatic mutations, and offers a view towards understanding the importance of genetic counselling for SDHA-variant carriers and relatives.
Collapse
Affiliation(s)
- Angela Schipani
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CS Utrecht, The Netherlands
| | - Margherita Nannini
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
- Division of Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Annalisa Astolfi
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
- Correspondence: ; Tel.: +39-051-2144520
| | - Maria A. Pantaleo
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
- Division of Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| |
Collapse
|
2
|
Vikramdeo KS, Sudan SK, Singh AP, Singh S, Dasgupta S. Mitochondrial respiratory complexes: Significance in human mitochondrial disorders and cancers. J Cell Physiol 2022; 237:4049-4078. [PMID: 36074903 DOI: 10.1002/jcp.30869] [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: 11/17/2021] [Revised: 07/18/2022] [Accepted: 08/23/2022] [Indexed: 11/07/2022]
Abstract
Mitochondria are pivotal organelles that govern cellular energy production through the oxidative phosphorylation system utilizing five respiratory complexes. In addition, mitochondria also contribute to various critical signaling pathways including apoptosis, damage-associated molecular patterns, calcium homeostasis, lipid, and amino acid biosynthesis. Among these diverse functions, the energy generation program oversee by mitochondria represents an immaculate orchestration and functional coordination between the mitochondria and nuclear encoded molecules. Perturbation in this program through respiratory complexes' alteration results in the manifestation of various mitochondrial disorders and malignancy, which is alarmingly becoming evident in the recent literature. Considering the clinical relevance and importance of this emerging medical problem, this review sheds light on the timing and nature of molecular alterations in various respiratory complexes and their functional consequences observed in various mitochondrial disorders and human cancers. Finally, we discussed how this wealth of information could be exploited and tailored to develop respiratory complex targeted personalized therapeutics and biomarkers for better management of various incurable human mitochondrial disorders and cancers.
Collapse
Affiliation(s)
- Kunwar Somesh Vikramdeo
- Department of Pathology, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA.,Department of Pathology, College of Medicine, University of South Alabama, Mobile, Alabama, USA
| | - Sarabjeet Kour Sudan
- Department of Pathology, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA.,Department of Pathology, College of Medicine, University of South Alabama, Mobile, Alabama, USA
| | - Ajay P Singh
- Department of Pathology, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA.,Department of Pathology, College of Medicine, University of South Alabama, Mobile, Alabama, USA.,Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama, USA
| | - Seema Singh
- Department of Pathology, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA.,Department of Pathology, College of Medicine, University of South Alabama, Mobile, Alabama, USA.,Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama, USA
| | - Santanu Dasgupta
- Department of Pathology, Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA.,Department of Pathology, College of Medicine, University of South Alabama, Mobile, Alabama, USA.,Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama, USA
| |
Collapse
|
3
|
Kohailan M, Al-Saei O, Padmajeya S, Aamer W, Elbashir N, Al-Shabeeb Akil A, Kamboh AR, Fakhro K. A de novo start-loss in EFTUD2 associated with mandibulofacial dysostosis with microcephaly: case report. Cold Spring Harb Mol Case Stud 2022; 8:mcs.a006206. [PMID: 35732499 PMCID: PMC9235844 DOI: 10.1101/mcs.a006206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/02/2022] [Indexed: 12/02/2022] Open
Abstract
Mandibulofacial dysostosis with microcephaly (MFDM) is a rare genetic disorder inherited in an autosomal dominant pattern. Major characteristics include developmental delay, craniofacial malformations such as malar and mandibular hypoplasia, and ear anomalies. Here, we report a 4.5-yr-old female patient with symptoms fitting MFDM. Using whole-genome sequencing, we identified a de novo start-codon loss (c.3G > T) in the EFTUD2. We examined EFTUD2 expression in the patient by RNA sequencing and observed a notable functional consequence of the variant on gene expression in the patient. We identified a novel variant for the development of MFDM in humans. To the best of our knowledge, this is the first report of a start-codon loss in EFTUD2 associated with MFDM.
Collapse
Affiliation(s)
- Muhammad Kohailan
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha 34110, Qatar
| | - Omayma Al-Saei
- Department of Human Genetics, Sidra Medicine, Doha 26999, Qatar
| | | | - Waleed Aamer
- Department of Human Genetics, Sidra Medicine, Doha 26999, Qatar
| | - Najwa Elbashir
- Department of Human Genetics, Sidra Medicine, Doha 26999, Qatar
| | | | - Abdul-Rauf Kamboh
- Department of Pediatric Ophthalmology, Sidra Medicine, Doha 26999, Qatar
| | - Khalid Fakhro
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha 34110, Qatar.,Department of Human Genetics, Sidra Medicine, Doha 26999, Qatar.,Department of Genetic Medicine, Weill-Cornell Medical College, Doha 24144, Qatar
| |
Collapse
|
4
|
Xu X, Zhang N, Gao R, Wang J, Dai Z, Bi J. Upregulation of SDHA inhibited proliferation, migration, and invasion of clear cell renal cell carcinoma cells via inactivation of the Wnt/β-catenin pathway. J Recept Signal Transduct Res 2021; 42:180-188. [PMID: 33602019 DOI: 10.1080/10799893.2021.1883060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Clear cell renal cell carcinoma (ccRCC) is a common genitourinary malignancy with high mortality. Recent findings suggest that the succinate dehydrogenase complex subunit A (SDHA) is lowly expressed in many types of cancers and involved in tumorigenesis. However, the potential regulatory roles and molecular mechanisms by which SDHA affects the development and progression of ccRCC remain largely unknown. In this study, our results showed that there was significant downregulation of SDHA in ccRCC tissue relative to corresponding non-cancerous tissue, and low expression of SDHA was associated with Fuhrman pathological grade, tumor size, TNM stage, metastasis, and poor prognosis in ccRCC patients. Moreover, overexpression of SDHA inhibited the proliferation, invasion, and migration capacities of ccRCC cells. Mechanistically, SDHA impeded the proliferation and metastasis of ccRCC cells by inactivation of the Wnt/β-catenin pathway. In vivo experiments, SDHA suppressed ccRCC growth in a nude mouse model. In conclusion, our study results indicated that SDHA may act as a new molecular marker for judging the occurrence and development of ccRCC and serve as a therapeutic target for the treatment of human ccRCC.
Collapse
Affiliation(s)
- Xiaolong Xu
- Department of Urology, The Second Hospital of Dalian Medical University, Dalian, China.,Department of Urology, Institute of Urology, The First Hospital of China Medical University, Liaoning, China
| | - Naiwei Zhang
- Department of Urology, Shengjing Hospital of China Medical University, Liaoning, China
| | - Ruxu Gao
- Department of Urology, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Liaoning, China
| | - Jianfeng Wang
- Department of Urology, Institute of Urology, The First Hospital of China Medical University, Liaoning, China
| | - Zhihong Dai
- Department of Urology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Jianbin Bi
- Department of Urology, Institute of Urology, The First Hospital of China Medical University, Liaoning, China
| |
Collapse
|
5
|
Pantaleo MA, Urbini M, Schipani A, Nannini M, Indio V, De Leo A, Vincenzi B, Brunello A, Grignani G, Casagrande M, Fumagalli E, Conca E, Saponara M, Gruppioni E, Altimari A, De Biase D, Tallini G, Ravegnini G, Turchetti D, Seri M, Ardizzoni A, Secchiero P, Astolfi A. SDHA Germline Variants in Adult Patients With SDHA-Mutant Gastrointestinal Stromal Tumor. Front Oncol 2021; 11:778461. [PMID: 35059314 PMCID: PMC8764450 DOI: 10.3389/fonc.2021.778461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/30/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND SDH-deficient gastrointestinal stromal tumors (GIST) account for 20-40% of all KIT/PDGFRA-negative GIST and are due to mutations in one of the four SDH-complex subunits, with SDHA mutations as the most frequent. Here we sought to evaluate the presence and prevalence of SDHA variants in the germline lineage in a population of SDHA-deficient GIST. METHODS Germline SDHA status was assessed by Sanger sequencing on a series of 14 patients with gastric SDHA-deficient GIST. RESULTS All patients carried a germline SDHA pathogenic variant, ranging from truncating, missense, or splicing variants. The second hit was the loss of the wild-type allele or an additional somatic mutation. One-third of the patients were over 50 years old. GIST was the only disease presentation in all cases except one, with no personal or familial cancer history. Seven metastatic cases received a multimodal treatment integrating surgery, loco-regional and medical therapy. The mean follow-up time was of 10 years, confirming the indolent clinical course of the disease. CONCLUSION SDHA germline variants are highly frequent in SDHA-deficient GIST, and the disease may occur also in older adulthood. Genetic testing and surveillance of SDHA-mutation carriers and relatives should be performed.
Collapse
Affiliation(s)
- Maria A. Pantaleo
- Division of Oncology, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy
- Department of Experimental, Diagnostic and Specialized Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Milena Urbini
- “Giorgio Prodi” Cancer Research Center, University of Bologna, Bologna, Italy
- *Correspondence: Milena Urbini,
| | - Angela Schipani
- Department of Experimental, Diagnostic and Specialized Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Margherita Nannini
- Division of Oncology, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy
| | - Valentina Indio
- “Giorgio Prodi” Cancer Research Center, University of Bologna, Bologna, Italy
| | - Antonio De Leo
- Department of Experimental, Diagnostic and Specialized Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
- Anatomic Pathology and Molecular Diagnostic Unit-University of Bologna Medical Center, Bologna, Italy
| | - Bruno Vincenzi
- Department of Medical Oncology, University Campus Bio-Medico, Rome, Italy
| | - Antonella Brunello
- Oncology 1 Unit, Department of Oncology, Istituto Oncologico Veneto IOV - IRCCS, Padova, Italy
| | - Giovanni Grignani
- Division of Medical Oncology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | | | - Elena Fumagalli
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Elena Conca
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Maristella Saponara
- Melano and Sarcoma Medical Treatment Unit, Istituto Europeo di Oncologia, Milan, Italy
| | - Elisa Gruppioni
- Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Annalisa Altimari
- Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Dario De Biase
- Anatomic Pathology and Molecular Diagnostic Unit-University of Bologna Medical Center, Bologna, Italy
- Department of Pharmacy and Biotechnology (FaBit), University of Bologna, Bologna, Italy
| | - Giovanni Tallini
- Department of Experimental, Diagnostic and Specialized Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
- Anatomic Pathology and Molecular Diagnostic Unit-University of Bologna Medical Center, Bologna, Italy
| | - Gloria Ravegnini
- Department of Pharmacy and Biotechnology (FaBit), University of Bologna, Bologna, Italy
| | - Daniela Turchetti
- Unit of Medical Genetics, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy
| | - Marco Seri
- Unit of Medical Genetics, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy
| | - Andrea Ardizzoni
- Division of Oncology, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy
| | - Paola Secchiero
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Annalisa Astolfi
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| |
Collapse
|