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Updated: Jun 9, 2026
Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
Recurrent aberrations identified by array-CGH in patients with Mayer-Rokitansky-Küster-Hauser syndrome
Susanne Ledig1, Cordula Schippert, Reiner Strick
1Institut für Humangenetik, Westfälische Wilhelms-Universität, Münster, Germany. sledig@uni-muenster.de
Objective:
To identify genetic causes of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome.
Design:
Prospective laboratory study.
Setting:
University hospital.
Patient(S):
Fifty-six patients with MRKH syndrome.
Intervention(S):
Identification of microdeletions and -duplications in a group of 48 MRKH patients by array-CGH. Results obtained by array-CGH were confirmed by RT-qPCR. Sequential analysis of two candidate genes LHX1 and HNF1B in a group of 56 MRKH patients.
Main Outcome Measure(S):
Identification of chromosomal regions and genes (recurrent and private) associated with MRKH syndrome.
Result(S):
We could delineate three definitively relevant regions (1q21.1, 17q12, and 22q11.21) and suggest that LHX1 und HNF1B are candidate genes for MRKH syndrome, because we identified recurrent deletions affecting these genes and a possible causative missense mutation in LHX1.
Conclusion(S):
Our findings suggest that different chromosomal regions are associated with MRKH syndrome.
Insights
Genetic analysis identified key chromosomal regions linked to Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome. This research highlights specific genes, LHX1 and HNF1B, as potential contributors to MRKH syndrome development.
Area of Science:
- Genetics
- Reproductive Medicine
- Developmental Biology
Background:
- Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is a congenital condition affecting the female reproductive tract.
- The genetic underpinnings of MRKH syndrome remain incompletely understood, necessitating further investigation.
Purpose of the Study:
- To elucidate the genetic etiology of MRKH syndrome.
- To identify specific chromosomal regions and genes associated with the condition.
Main Methods:
- Prospective laboratory study involving 56 patients diagnosed with MRKH syndrome.
- Array comparative genomic hybridization (array-CGH) was employed to detect microdeletions and duplications in 48 patients.
- Quantitative real-time polymerase chain reaction (RT-qPCR) confirmed array-CGH findings, and sequential analysis of LHX1 and HNF1B genes was performed.
Main Results:
- Three critical chromosomal regions (1q21.1, 17q12, and 22q11.21) were identified as significantly associated with MRKH syndrome.
- Recurrent deletions affecting the LHX1 and HNF1B genes were observed.
- A potential causative missense mutation in the LHX1 gene was identified, suggesting its role in MRKH syndrome pathogenesis.
Conclusions:
- The study findings indicate that diverse chromosomal regions contribute to the development of MRKH syndrome.
- LHX1 and HNF1B are proposed as candidate genes implicated in MRKH syndrome, warranting further functional studies.
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