Mutations in the polyglutamine tract-binding protein 1 (PQBP1) gene are associated with Renpenning syndrome, which is characterized by microcephaly, intellectual deficiency, short stature, small testes, and distinct facial dysmorphism. Studies using different models have revealed that PQBP1 plays essential roles in neural development and function. In this mini-review, we summarize recent findings relating to the roles of PQBP1 in these processes, including in the regulation of neural progenitor proliferation, neural projection, synaptic growth, neuronal survival, and cognitive function via mRNA transcription and splicing-dependent or -independent processes. The novel findings provide insights into the mechanisms underlying the pathogenesis of Renpenning syndrome and may advance drug discovery and treatment for this condition.
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Macrophages are innate immune cells responsible for a variety of tissue-specific homeostatic functions and responding to infiltrating pathogens. A lot of what we know about macrophages comes from studies on unphysiological 2D plastic dishes, however new insights into macrophage biology are emerging thanks to 3D cell culture technology (see the review in this issue by Cutter et al., pages 387–401). Depicted here is a macrophage suspended within a neon 3D dimension. Image provided by Katrina Binger.
The role of PQBP1 in neural development and function
Shanshan Cheng, Xian Liu, Linjuan Yuan, Nan Wang, Zi Chao Zhang, Junhai Han; The role of PQBP1 in neural development and function. Biochem Soc Trans 27 February 2023; 51 (1): 363–372. doi: https://doi.org/10.1042/BST20220920
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