Physiology
Septins tune lipid kinase activity and PI(4,5)P2 turnover during G-protein–coupled PLC signalling in vivoIn Drosophila photoreceptors, PI(4,5)P2 synthesis during PLC signalling is regulated by PIP5K and septins.
MANF supports the inner hair cell synapse and the outer hair cell stereocilia bundle in the cochleaThe authors show in the mouse how the auditory hair cell structural maintenance is perturbed by the inactivation of Manf and the concomitant ER stress, causing early-onset, progressive hearing loss.
SnRNA sequencing defines signaling by RBC-derived extracellular vesicles in the murine heartIn a unique model of fluorescent based mapping of EV recipient cells, RBC-EVs were found to signal to cardiac cells and regulate gene expression in a model of ischemic heart failure.
Peroxisomes contribute to intracellular calcium dynamics in cardiomyocytes and non-excitable cellsUsing genetically encoded Förster resonance energy transfer calcium sensors for the peroxisome, this study dissects the previously contentious peroxisome involvement in calcium handling in HeLa cells and in cardiomyocytes derived from human induced pluripotent stem cells.
Small intestinal flora graft alters fecal flora, stool, cytokines and mood status in healthy miceTransplantation of microbiota from small intestine, not large intestine, of healthy mice exerts obvious effects on healthy recipients, bringing a new perspective on gut flora transplantation.
Role of opioid signaling in kidney damage during the development of salt-induced hypertensionStimulation of kappa opioid receptors modulates calcium influx via TRPC6 channels in podocytes, which ultimately compromises the integrity of the glomerular filtration barrier and promotes a marked worsening of blood pressure control and renal damage.
Differential regulation of hepatic physiology and injury by the TAM receptors Axl and MerThe TAM receptor tyrosine kinases Mer and Axl play critical roles in liver homeostasis and in the response to both acute and chronic liver injury.
Mylk3 null C57BL/6N mice develop cardiomyopathy, whereas Nnt null C57BL/6J mice do notGenetic differences between C57BL/6 substrains lead to different cardiovascular traits; a null mutation in Mylk3 likely causes cardiomyopathy in C57BL/6N mice, whereas C57BL/6J Nnt-null mice do not develop cardiomyopathy.
The health status alters the pituitary function and reproduction of mice in a Cxcr2-dependent mannerThis study explores the effects of microbiota on reproductive function of Cxcr2 knockout animals. Cxcr2 is involved in the control of pituitary action and the subsequent development of mammary gland, uterus and ovary.
Loss of autophagy impairs physiological steatosis by accumulation of NCoR1Autophagy regulates fatty acid and triglyceride synthesis at the transcriptional level by fine-tuning the levels of NCoR1, a negative regulator of nuclear receptors. Defective autophagy impairs physiological steatosis both under fasting conditions and after hepatectomy.