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Aslam K, Saeed A, Jamil I, Saeed HI, Khan R, Hassan S, Rafiq S, Asif M, Makhdoom EUH, Bashir R, Hussain MS, Baig SM, Anjum I. Investigating the effects of a single ASPM variant (c.8508_8509) on brain architecture among siblings in a consanguineous Pakistani family. Mol Biol Rep 2024; 51:104. [PMID: 38224417 DOI: 10.1007/s11033-023-09161-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/14/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Autosomal Recessive Primary Microcephaly (MCPH) is a rare, neurodevelopmental disorder associated with mild to severe mental retardation. It is characterized by reduced cerebral cortex that ultimately leads to reduction in skull size less than - 3 S.D below the mean for normal individuals having same age and sex. Till date, 30 known loci have been reported for MCPH. METHODS In the present study, Sanger sequencing was performed followed by linkage analysis to validate the mutation in ASPM gene of the consanguineous Pakistani clans. Bioinformatics tools were also used to confirm the pathogenicity of the diseased variant in the gene. MRI scan was used to compare the brain structure of both the affected individuals (Aslam et al. in Kinnaird's 2nd International Conference on Science, Technology and Innovation, Lahore, 2023). RESULTS Our study described a consanguineous family with two patients with a known ASPM (MCPH5) variant c.8508_8509delGA causing a frameshift mutation in exon 18 which located in calmodulin-binding IQ domain of the ASPM protein. The salient feature of this study is that a single variant led to significantly distinct changes in the architecture of brain of both siblings which is further confirmed by MRI results. The computation analysis showed that the change in the conservation of this residue cause this variant highly pathogenic. Carrier screening and genetic counselling were also remarkable features of this study (Aslam et al. in Kinnaird's 2nd International Conference on Science, Technology and Innovation, Lahore, 2023). CONCLUSION This study explores the extraordinary influence of a single ASPM variant on divergent brain structure in consanguineous siblings and enable us to reduce the incidence of further microcephalic cases in this Pakistani family (Aslam et al. in Kinnaird's 2nd International Conference on Science, Technology and Innovation, Lahore, 2023).
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Affiliation(s)
- Komal Aslam
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan
- Department of Biotechnology, Lahore College for Women, University, Lahore, Pakistan
| | - Aysha Saeed
- Faculty of Engineering and IT, School of biomedical engineering, University of Technology Sydney, Sydney, Australia
| | - Iffat Jamil
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan
- School of Nursing and Healthcare Leadership, University of Bradford, Bradford, England
| | - Hafiza Iqra Saeed
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan
| | - Ramisha Khan
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan
| | - Samina Hassan
- Department of Botany, Kinnaird College for Women, Lahore, Pakistan
| | | | - Maria Asif
- Faculty of Medicine, Cologne Center for Genomics (CCG), University Hospital Cologne, University of Cologne, 50931, Cologne, Germany
- Faculty of Medicine, Center for Molecular Medicine Cologne (CMMC), University Hospital Cologne, University of Cologne, 50931, Cologne, Germany
| | - Ehtisham Ul Haq Makhdoom
- Neurochemical Biology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Rasheeda Bashir
- Department of Biotechnology, Lahore College for Women, University, Lahore, Pakistan
| | - Muhammad Sajid Hussain
- Faculty of Medicine, Cologne Center for Genomics (CCG), University Hospital Cologne, University of Cologne, 50931, Cologne, Germany
- Faculty of Medicine, Center for Molecular Medicine Cologne (CMMC), University Hospital Cologne, University of Cologne, 50931, Cologne, Germany
| | - Shahid Mahmood Baig
- Human Molecular Genetics Laboratory, Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Pakistan
| | - Iram Anjum
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan.
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Wu X, Li Z, Wang ZQ, Xu X. The neurological and non-neurological roles of the primary microcephaly-associated protein ASPM. Front Neurosci 2023; 17:1242448. [PMID: 37599996 PMCID: PMC10436222 DOI: 10.3389/fnins.2023.1242448] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/24/2023] [Indexed: 08/22/2023] Open
Abstract
Primary microcephaly (MCPH), is a neurological disorder characterized by small brain size that results in numerous developmental problems, including intellectual disability, motor and speech delays, and seizures. Hitherto, over 30 MCPH causing genes (MCPHs) have been identified. Among these MCPHs, MCPH5, which encodes abnormal spindle-like microcephaly-associated protein (ASPM), is the most frequently mutated gene. ASPM regulates mitotic events, cell proliferation, replication stress response, DNA repair, and tumorigenesis. Moreover, using a data mining approach, we have confirmed that high levels of expression of ASPM correlate with poor prognosis in several types of tumors. Here, we summarize the neurological and non-neurological functions of ASPM and provide insight into its implications for the diagnosis and treatment of MCPH and cancer.
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Affiliation(s)
- Xingxuan Wu
- Guangdong Key Laboratory for Genome Stability and Disease Prevention and Marshall Laboratory of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, Guangdong, China
- Shenzhen University-Friedrich Schiller Universität Jena Joint PhD Program in Biomedical Sciences, Shenzhen University School of Medicine, Shenzhen, Guangdong, China
- Laboratory of Genome Stability, Leibniz Institute on Aging-Fritz Lipmann Institute, Jena, Germany
| | - Zheng Li
- Guangdong Key Laboratory for Genome Stability and Disease Prevention and Marshall Laboratory of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, Guangdong, China
| | - Zhao-Qi Wang
- Shenzhen University-Friedrich Schiller Universität Jena Joint PhD Program in Biomedical Sciences, Shenzhen University School of Medicine, Shenzhen, Guangdong, China
- Laboratory of Genome Stability, Leibniz Institute on Aging-Fritz Lipmann Institute, Jena, Germany
| | - Xingzhi Xu
- Guangdong Key Laboratory for Genome Stability and Disease Prevention and Marshall Laboratory of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, Guangdong, China
- Shenzhen University-Friedrich Schiller Universität Jena Joint PhD Program in Biomedical Sciences, Shenzhen University School of Medicine, Shenzhen, Guangdong, China
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