ArticleEndocrinology2022
MARK2 and MARK4 Regulate Sertoli Cell BTB Dynamics Through Microtubule and Actin Cytoskeletons.
Article in Endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Androgen rapidly activates phosphorylation signaling pathways in Sertoli cells.Experimental and therapeutic medicine · 2026Article
- TTBK2 affects sperm quality by regulating the expression of centrosomal proteins and flagellar transporters during spermiogenesis in mice.Molecular human reproduction · 2025Article
- Enhancing intestinal epithelial microtubule stability could alleviate IBD symptoms.Cell communication and signaling : CCS · 2025Article
- Identification of biomarkers of male infertility through the circRNA expression profiling of seminal plasma.Journal of biomedical research · 2025Article
- Impact of Type 1 Diabetes on Testicular Microtubule Dynamics, Sperm Physiology, and Male Reproductive Health in Rat.International journal of molecular sciences · 2025Article
- TEX38 localizes ZDHHC19 to the plasma membrane and regulates sperm head morphogenesis in mice.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- Genetic Diversity, Selection Signatures, and Genome-Wide Association Study Identify Candidate Genes Related to Litter Size in Hu Sheep.International journal of molecular sciences · 2024Article
- Identification of an FMNL2 Interactome by Quantitative Mass Spectrometry.International journal of molecular sciences · 2024Article
- Map-1a regulates Sertoli cell BTB dynamics through the cytoskeletal organization of microtubule and F-actin.Reproductive biology and endocrinology : RB&E · 2024Article
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
Abstract
Microtubule affinity-regulating kinases (MARKs) are nonreceptor Ser/Thr protein kinases known to regulate cell polarity and microtubule dynamics in Caenorhabditis elegans, Drosophila, invertebrates, vertebrates, and mammals. An earlier study has shown that MARK4 is present at the ectoplasmic specialization and blood-testis barrier (BTB) in the seminiferous epithelium of adult rat testes. Here, we report the function of MARK4 and another isoform MARK2 in Sertoli cells at the BTB. Knockdown of MARK2, MARK4, or MARK2 and MARK4 by RNAi using the corresponding siRNA duplexes without apparent off-target effects was shown to impair tight junction (TJ)-permeability barrier at the Sertoli cell BTB. It also disrupted microtubule (MT)- and actin-based cytoskeletal organization within Sertoli cells. Although MARK2 and MARK4 were shown to share sequence homology, they likely regulated the Sertoli cell BTB and MT cytoskeleton differently. Disruption of the TJ-permeability barrier following knockdown of MARK4 was considerably more severe than loss of MARK2, though both perturbed the barrier. Similarly, loss of MARK2 affected MT organization in a different manner than the loss of MARK4. Knockdown of MARK2 caused MT bundles to be arranged around the cell periphery, whereas knockdown of MARK4 caused MTs to retract from the cell edge. These differences in effects on the TJ-permeability barrier are likely from the unique roles of MARK2 and MARK4 in regulating the MT cytoskeleton of the Sertoli cell.
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Registered trials
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