Protein expression during the excystment of Colpoda cucullus was studied by SDS-PAGE. The expression levels of 60-, 50- and 49-kDa proteins were markedly changed from the early to later stage of excystment. The 60-kDa protein (p60) was temporarily expressed first, and its expression was inhibited by actinomycin D. LC-MS/MS analysis showed that the amino acid sequences of p60 partially coincided with those of the Paramecium tetraurelia unnamed protein homologous to DEAD-box RNA helicase. These results suggest that p60 expression is enhanced by transcriptional regulation and may be involved in initiating the molecular events leading to cellular morphogenesis.
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http://dx.doi.org/10.1264/jsme2.me12200 | DOI Listing |
J Autoimmun
January 2025
Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Peking University, No.38, Xueyuan Road, Haidian, Beijing, 100191, China. Electronic address:
Psoriasis is a chronic inflammatory skin disease with etiologies related to genetics, immunity, and the environment. It is characterized by excessive proliferation of keratinocytes and infiltration of inflammatory immune cells. Glycosylation is a post-translational modification of proteins that plays important roles in cell adhesion, signal transduction, and immune cell activation.
View Article and Find Full Text PDFTransl Oncol
January 2025
Department of Surgery, The Second Affiliated Hospital of Jiaxing University, No. 397, Huangcheng North Road, Jiaxing, Zhejiang, 314000, China. Electronic address:
Epidermal growth factor receptor (EGFR) plays an important role in the regulation of cell proliferation and migration [1]. It forms a homodimer or heterodimer with other ErbB receptor family members to activate downstream signaling. Emerging evidence indicates that the EGFR activity and downstream signaling are regulated by other proteins except its family members during tumorigenesis.
View Article and Find Full Text PDFPLoS One
January 2025
School of Life Science, Inner Mongolia University, Hohhot, PR China.
Ovarian tissue cryopreservation addresses critical challenges in fertility preservation for prepubertal female cancer patients, such as the lack of viable eggs and hormonal deficiencies. However, mitigating follicle and granulosa cell damage during freeze-thaw cycles remains an urgent issue. Luteinizing hormone (LH), upon binding to luteinizing hormone receptors (LHR) on granulosa cells, enhances estrogen synthesis and secretion, contributing to the growth of granulosa cells and follicles.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Shenzhen Hospital, Southern Medical University, Shenzhen 518000, China.
ADAR is highly expressed and correlated with poor prognosis in hepatocellular carcinoma (HCC), yet the role of its constitutive isoform ADARp110 in tumorigenesis remains elusive. We investigated the role of ADARp110 in HCC and underlying mechanisms using clinical samples, a hepatocyte-specific knock-in mouse model, and engineered cell lines. ADARp110 is overexpressed and associated with poor survival in both human and mouse HCC.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6.
Although chromatin remodelers are among the most important risk genes associated with neurodevelopmental disorders (NDDs), the roles of these complexes during brain development are in many cases unclear. Here, we focused on the recently discovered ChAHP chromatin remodeling complex. The zinc finger and homeodomain transcription factor ADNP is a core subunit of this complex, and de novo mutations lead to intellectual disability and autism spectrum disorder.
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