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<p>The Immunoglobulin superfamily (IgSF) is a heterogeneous and conserved family of adhesion proteins crucial during the development of the central nervous system including neuronal migration and synaptogenesis. The Immunoglobulin superfamily member 3 (IGSF3) is expressed in the developing brain and has been suggested to play a role during morphological development of the granule cells neurites in the cerebellum. In addition, a role for IGSF3 in supporting glioma progression has been recently demonstrated. Remaining unexplored is the physiological role of IGSF3 in regulating brain development, including neocortical development. We generated an <i>Igsf3</i> knockout (KO) mouse using a CRISPR/Cas9-based approach and explored the function of Igsf3 in regulating cortical development. We found that Igsf3 largely co-localizes with other IgSF proteins during cortical development and despite its expression being developmentally regulated in neuronal progenitors and in postmitotic neurons, Igsf3 is not essential for brain development, neuronal migration, or neuronal maturation.</p>

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Immunoglobulin superfamily 3 (Igsf3) function is dispensable for brain development

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月23日

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  • Carolina Cocito,
  • Chaomei Xiang,
  • Meng Huang,
  • Tatyana Gongora,
  • Pallavi Surana,
  • Ramana Davuluri,
  • Nadia Dahmane,
  • Jeffrey P. Greenfield

摘要

The Immunoglobulin superfamily (IgSF) is a heterogeneous and conserved family of adhesion proteins crucial during the development of the central nervous system including neuronal migration and synaptogenesis. The Immunoglobulin superfamily member 3 (IGSF3) is expressed in the developing brain and has been suggested to play a role during morphological development of the granule cells neurites in the cerebellum. In addition, a role for IGSF3 in supporting glioma progression has been recently demonstrated. Remaining unexplored is the physiological role of IGSF3 in regulating brain development, including neocortical development. We generated an Igsf3 knockout (KO) mouse using a CRISPR/Cas9-based approach and explored the function of Igsf3 in regulating cortical development. We found that Igsf3 largely co-localizes with other IgSF proteins during cortical development and despite its expression being developmentally regulated in neuronal progenitors and in postmitotic neurons, Igsf3 is not essential for brain development, neuronal migration, or neuronal maturation.