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AP2XII-1 and AP2XI-2 Suppress Schizogony Gene Expression in Toxoplasma gondii.
Jiang, Yucong; Shi, Yuehong; Xue, Yingying; Hu, Dandan; Song, Xingju.
Afiliación
  • Jiang Y; College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
  • Shi Y; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530004, China.
  • Xue Y; College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
  • Hu D; College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
  • Song X; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530004, China.
Int J Mol Sci ; 25(10)2024 May 18.
Article en En | MEDLINE | ID: mdl-38791568
ABSTRACT
Toxoplasma gondii is an intracellular parasite that is important in medicine and veterinary science and undergoes distinct developmental transitions in its intermediate and definitive hosts. The switch between stages of T. gondii is meticulously regulated by a variety of factors. Previous studies have explored the role of the microrchidia (MORC) protein complex as a transcriptional suppressor of sexual commitment. By utilizing immunoprecipitation and mass spectrometry, constituents of this protein complex have been identified, including MORC, Histone Deacetylase 3 (HDAC3), and several ApiAP2 transcription factors. Conditional knockout of MORC or inhibition of HDAC3 results in upregulation of a set of genes associated with schizogony and sexual stages in T. gondii tachyzoites. Here, our focus extends to two primary ApiAP2s (AP2XII-1 and AP2XI-2), demonstrating their significant impact on the fitness of asexual tachyzoites and their target genes. Notably, the targeted disruption of AP2XII-1 and AP2XI-2 resulted in a profound alteration in merozoite-specific genes targeted by the MORC-HDAC3 complex. Additionally, considerable overlap was observed in downstream gene profiles between AP2XII-1 and AP2XI-2, with AP2XII-1 specifically binding to a subset of ApiAP2 transcription factors, including AP2XI-2. These findings reveal an intricate cascade of ApiAP2 regulatory networks involved in T. gondii schizogony development, orchestrated by AP2XII-1 and AP2XI-2. This study provides valuable insights into the transcriptional regulation of T. gondii growth and development, shedding light on the intricate life cycle of this parasitic pathogen.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Toxoplasma / Proteínas Protozoarias / Regulación de la Expresión Génica Límite: Animals Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Toxoplasma / Proteínas Protozoarias / Regulación de la Expresión Génica Límite: Animals Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza