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Unveiling the roles of LEMD proteins in cellular processes
Yiyun Wang1, Zhi Chen1, Guobin Yang1
1State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430071, China.
Insights
LAP2-emerin-MAN1 domain (LEMD) proteins in the inner nuclear membrane are crucial for nuclear envelope functions and cellular processes. Their malfunction causes severe tissue-specific diseases, highlighting the need for further research into mechanisms and treatments.
Area of Science:
- Cell Biology
- Genetics
- Biochemistry
Background:
- Proteins in the inner nuclear membrane (INM) interact with outer nuclear membrane (ONM) proteins and the nuclear lamina to regulate cellular functions.
- LAP2-emerin-MAN1 domain (LEMD) proteins are key INM components involved in nuclear envelope reconstruction, mechanotransduction, and gene regulation.
Purpose of the Study:
- To review the critical roles of LEMD proteins in cellular processes.
- To elucidate the mechanisms underlying LEMD protein-related diseases.
- To identify knowledge gaps and future research directions, particularly concerning tissue-specific phenotypes.
Main Methods:
- Literature review of existing research on LEMD proteins.
- Analysis of cellular functions associated with LEMD proteins.
- Examination of disease mechanisms linked to LEMD protein dysfunction.
Main Results:
- LEMD proteins are essential for maintaining INM integrity and function.
- Dysfunctional LEMD proteins are implicated in severe, tissue-restricted genetic disorders.
- The review consolidates current knowledge and highlights areas needing further investigation.
Conclusions:
- LEMD proteins play vital roles in nuclear envelope biology and overall cellular health.
- Understanding LEMD protein mechanisms is crucial for developing therapeutic strategies for related diseases.
- Further research is warranted to fully comprehend tissue-specific disease manifestations and treatment options.
Abstract:
Proteins localized in the inner nuclear membrane (INM) engage in various fundamental cellular processes via their interactions with outer nuclear membrane (ONM) proteins and nuclear lamina. LAP2-emerin-MAN1 domain (LEMD) family proteins, predominantly positioned in the INM, participate in the maintenance of INM functions, including the reconstruction of the nuclear envelope during mitosis, mechanotransduction, and gene transcriptional modulation. Malfunction of LEMD proteins leads to severe tissue-restricted diseases, which may manifest as fatal deformities and defects. In this review, we summarize the significant roles of LEMD proteins in cellular processes, explains the mechanisms of LEMD protein-related diseases, and puts forward questions in less-explored areas like details in tissue-restricted phenotypes. It intends to sort out previous works about LEMD proteins and pave way for future researchers who might discover deeper mechanisms of and better treatment strategies for LEMD protein-related diseases.
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