In the work there was studied the influence of hepatic chalones on the level of mitotic activity and on the degree of adhesion of hepatocytes after the violation of parasympathetic and sympathetic innervation under the physiological conditions of liver function and in regenerating organ. Some definite regularities were revealed in the change of the power of linkage among the cells of liver parenchyma after the disturbance of its innervation and chalones affected. Significant differences in the effect of the influence of tissue inhibitors of proliferation on the process of regeneration in liver, which has intact or disturbed innervation were discovered. Particularly one can underline the effect of the loss of hepatocytes sensitivity to chalones in vagotomized liver.
Download full-text PDF |
Source |
---|
Mol Cell
January 2025
Center for Cancer Research, National Cancer Institute/NIH, Bethesda, MD 20892, USA. Electronic address:
Aging involves a range of genetic, epigenetic, and physiological alterations. A key characteristic of aged cells is the loss of global heterochromatin, accompanied by a reduction in canonical histone levels. In this study, we track the fate of centromeres in aged human fibroblasts and tissues and in various cellular senescent models.
View Article and Find Full Text PDFDiscov Oncol
January 2025
Spinal Surgery Department, the Fourth People's Hospital of Jinan, No.50 Normal Road, Tianqiao District, Jinan, 250031, Shandong, China.
Background: It is known that genomic instability contributes to cancer development. Mitotically associated long non-coding RNA (MANCR) has been reported to promote genomic stability, suggesting its involvement in cancers. Therefore, this study was conducted to investigate the role of MANCR in non-small cell lung cancer (NSCLC).
View Article and Find Full Text PDFAquat Toxicol
January 2025
Nantes Université, Institut des Substances et Organismes de la Mer, ISOMer, UR 2160, Nantes F-44000, France.
Improving the understanding of how chemicals affect on organisms and assessing the associated environmental risks is of major interest in environmental studies. This can be achieved by using complementary approaches based on the study of the molecular responses of organisms. Because of the known chemical pressures on the environment, regulations on the content of some chemicals, such as cadmium, have been mostly completed.
View Article and Find Full Text PDFPLoS Genet
January 2025
Molecular Mycology Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India.
During chromosome segregation, the spindle assembly checkpoint (SAC) detects errors in kinetochore-microtubule attachments. Timely activation and maintenance of the SAC until defects are corrected is essential for genome stability. Here, we show that shugoshin (Sgo1), a conserved tension-sensing protein, ensures the maintenance of SAC signals in response to unattached kinetochores during mitosis in a basidiomycete budding yeast Cryptococcus neoformans.
View Article and Find Full Text PDFCurr Biol
January 2025
Department of Cell Biology, Duke University Medical Center, Durham, NC 27705, USA; Duke Center for Quantitative Living Systems, Duke University Medical Center, Durham, NC 27710, USA. Electronic address:
Anaphase is tightly controlled spatiotemporally to ensure proper separation of chromosomes. The mitotic spindle, the self-organized microtubule structure driving chromosome segregation, scales in size with the available cytoplasm. Yet, the relationship between spindle size and chromosome movement remains poorly understood.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!