专家小组选了31个与四肢腰带肌肉发育不良相关的基因
Shruthi Mohan1, Shannon McNulty1, Courtney Thaxton1
1Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, USA.
Annals of clinical and translational neurology
|August 31, 2024
概括
对31个与四肢腰带肌肉发育不良 (LGMD) 相关的基因的专家审查确定了大多数的临床有效性,有助于诊断. 对于某些基因,需要进一步的数据来确认特定的LGMD关联.
科学领域:
- 遗传学和分子生物学
- 神经肌肉疾病 神经肌肉疾病
- 临床有效性评估评估的临床有效性
背景情况:
- 肢体腰带肌肉发育不良 (LGMD) 是一种遗传多样性的自体变异性疾病,其特征是渐进的近位肌肉衰弱.
- 最近测序方面的进展已经确定了许多与LGMD相关的基因,需要进行强有力的临床有效性评估.
- LGMD的定义包括两岁后的发病,肌酸激酶的升高,以及特定的肌肉活检结果.
研究的目的:
- 评估31个涉及LGMD的基因与疾病关系 (GDR) 的证据的强度.
- 应用ClinGen基因疾病临床有效性框架进行专家审查.
- 为临床医生和遗传学家提供关于LGMD基因关联的资源.
主要方法:
- 召集了ClinGen肌肉发育不良和肌肉病的基因治疗专家小组 (MDM GCEP).
- 利用ClinGen基因疾病临床有效性框架来评估31个候选LGMD基因.
- 审查现有证据,以确定基因与LGMD表型之间的关联强度.
主要成果:
- 确立了35种基因疾病关系 (GDRs),其中30种被归类为确定的 (86%),4种为中度的 (11%) 和1种为有限的 (3%).
- 17个基因与LGMD完全相关,而14个基因与包括先天性弱点在内的更广泛的表型有关.
- 两个基因 (POMGNT1,DAG1) 显示出与肌肉病的确切联系,但缺乏足够的证据证明特定的LGMD关联.
结论:
- 关于LGMD相关基因临床有效性的专家验证的断言为临床实践和研究提供了至关重要的资源.
- 该研究强调需要继续研究和发布案例级数据,以澄清不确定的或新的LGMD基因关联.
- 鼓励神经肌肉社区的全球合作,以完善对LGMD遗传基础的理解.
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