» Articles » PMID: 30167989

New CACNA1A Deletions Are Associated to Migraine Phenotypes

Overview
Journal J Headache Pain
Publisher Biomed Central
Date 2018 Sep 1
PMID 30167989
Citations 11
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Familial hemiplegic migraine type 1 (FHM1) is a form of migraine with aura caused by heterozygous mutations in 4 genes: CACNA1A, ATP1A2, SNC1A and PRRT2, but further heterogeneity is expected. Here have been described clinical and molecular features in patients suffering from migraine with Aura (MA), without (MO) and hemiplegic migraine attacks. Next Generation Sequencing by TruSeq Custom Amplicon for CACNA1A and ATP1A2 gene has been performed. All genetic variants have been confirmed by Sanger sequencing and all samples were also analyzed with MLPA assay for ATP1A2-CACNA1A genes to detect duplication or deletion. All MLPA data were verified by Real Time PCR.

Results: Sequencing analysis showed 3 point mutations, two novel variants and one already described in literature. Moreover, MLPA analysis showed 3 deletions in 9 sporadic hemiplegic migraine (18%), in 3 patients with non-hemiplegic migraine (4.1%) and in 3 patients affected by episodic ataxia (20%). Two sporadic patients showed a deletion in exons 41-43, while the rest of HM patients (5) showed a deletion in the terminal part of the CACNA1A gene. About episodic ataxia, we have identified deletions in exon 12-15 and in exon 47. Finally, in migraine patients, we have found different subjects affected by different phenotypes deleted in exon 47.

Conclusion: This work highlights the importance to complement analysis as direct sequencing with quantitative analysis (MLPA). In fact, intragenic CACNA1A rearrangements have been detected. Our work demonstrated that deletions in CACNA1A gene may be associated also to different migraine phenotypes.

Citing Articles

A Review of the Gene Family: Its Role in Neurological Disorders.

Szymanowicz O, Druzdz A, Slowikowski B, Pawlak S, Potocka E, Goutor U Diseases. 2024; 12(5).

PMID: 38785745 PMC: 11119137. DOI: 10.3390/diseases12050090.


Unravelling the Genetic Landscape of Hemiplegic Migraine: Exploring Innovative Strategies and Emerging Approaches.

Alfayyadh M, Maksemous N, Sutherland H, Lea R, Griffiths L Genes (Basel). 2024; 15(4).

PMID: 38674378 PMC: 11049430. DOI: 10.3390/genes15040443.


EDIR: exome database of interspersed repeats.

Vo Ngoc L, Osei R, Dohr K, Olsen C, Seneca S, Gheldof A Bioinformatics. 2022; 39(1).

PMID: 36453866 PMC: 9805566. DOI: 10.1093/bioinformatics/btac771.


Towards Zebrafish Models of CNS Channelopathies.

Kolesnikova T, Demin K, Costa F, Zabegalov K, de Abreu M, Gerasimova E Int J Mol Sci. 2022; 23(22).

PMID: 36430455 PMC: 9693542. DOI: 10.3390/ijms232213979.


Longitudinal MRI brain findings in the R1349Q pathogenic variant of .

Ho C, Love H, Sokol D, Walsh L Radiol Case Rep. 2021; 16(6):1276-1279.

PMID: 33854663 PMC: 8026904. DOI: 10.1016/j.radcr.2021.02.052.


References
1.
Livak K, Schmittgen T . Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method. Methods. 2002; 25(4):402-8. DOI: 10.1006/meth.2001.1262. View

2.
Silberstein S, Dodick D . Migraine genetics: Part II. Headache. 2013; 53(8):1218-29. DOI: 10.1111/head.12169. View

3.
Pradotto L, Mencarelli M, Bigoni M, Milesi A, Di Blasio A, Mauro A . Episodic ataxia and SCA6 within the same family due to the D302N CACNA1A gene mutation. J Neurol Sci. 2016; 371:81-84. DOI: 10.1016/j.jns.2016.10.029. View

4.
Denier C, Ducros A, Vahedi K, Joutel A, Thierry P, Ritz A . High prevalence of CACNA1A truncations and broader clinical spectrum in episodic ataxia type 2. Neurology. 1999; 52(9):1816-21. DOI: 10.1212/wnl.52.9.1816. View

5.
Wan J, Mamsa H, Johnston J, Spriggs E, Singer H, Zee D . Large Genomic Deletions in CACNA1A Cause Episodic Ataxia Type 2. Front Neurol. 2011; 2:51. PMC: 3169784. DOI: 10.3389/fneur.2011.00051. View