Dlc1 deletion affects cardiac differentiation in mouse embryonic stem cells by activating the canonical Wnt pathway

Cardiomyocyte differentiation is an important event during heart development that involves the specification of cardiac lineage cells differentiated from mesendoderm to cardiac mesoderm. This specification is spatio-temporally regulated by multiple genes and signaling pathways.

Previous studies have shown that deleted in liver cancer 1 (DLC1), a tumor-suppressor gene, is involved in embryonic development, and its knockdown leads to the malformation of multiple organs, including abnormalities in cardiovascular system development and early fatalities.

A new international study led by the Gray Faculty of Medical & Health Sciences at Tel Aviv University finds: melanoma cancer cells paralyze immune cells by secreting extracellular vesicles (EVs), which are tiny, bubble-shaped containers secreted from a given cell. The research team believes that this discovery has far-reaching implications for possible treatments for the deadliest form of skin cancer.

Platinum-resistant recurrent epithelial ovarian cancer carries a bleak prognosis, with single-agent chemotherapy yielding response rates below 20% and median progression-free survival barely reaching 4 months; the A-Plus phase II trial therefore tested a chemotherapy-free, all-oral regimen combining albumin-bound paclitaxel and the multi-kinase inhibitor anlotinib in 44 heavily pre-treated women. Between January 2021 and March 2023, patients aged 32-70 years received nab-paclitaxel 260 mg m⁻² intravenously on day 1 plus anlotinib 12 mg orally once daily on days 1-14 of each 21-day cycle until progression or intolerable toxicity. Eligibility required documented platinum resistance, ECOG performance status 0-1, measurable or evaluable disease by RECIST 1.1 or Rustin criteria, and adequate organ function; prior anti-angiogenic therapy or PARP inhibitors was allowed, reflecting real-world refractory populations.

Advanced biliary tract cancer represents one of the most challenging gastrointestinal malignancies in China, with increasing incidence and extremely poor prognosis due to late-stage diagnosis and limited treatment options. The integration of precision medicine approaches has transformed the therapeutic landscape by enabling personalized treatment strategies based on molecular profiling, tumor characteristics, and patient-specific factors. Recent developments encompass novel chemotherapy combinations, targeted therapies for specific genetic alterations, immunotherapy approaches, and emerging biomarkers that guide treatment selection and predict therapeutic responses.

The Warburg effect describes how cancer cells switch from oxidative phosphorylation to glycolysis even in oxygen-rich conditions, producing massive amounts of lactate that accumulate in the tumor microenvironment. This metabolic reprogramming creates an acidic milieu that suppresses immune function while fueling tumor growth and metastasis. Beyond serving as a waste product, lactate functions as a powerful signaling molecule that reshapes immune responses through multiple mechanisms, including direct receptor binding, transporter-mediated cellular reprogramming, and post-translational protein modifications known as lactylation.

Kyoto, Japan -- Aged and frail people often suffer a decline in tissue reserve capacity during aging. This reserve, called resilience, helps the body maintain homeostasis through various defense, compensation, modulation, and repair responses. When resilience is impaired, elderly people tend to experience a gradual waning of their daily activity and an increase in multimorbidity, or dealing with multiple chronic illnesses.

One major cause of resilience decline is an increase in senescent cells that have stopped dividing. The human body has a natural mechanism for eliminating these cells called senolysis, but as we age this 'clearing' mechanism becomes less efficient.

Senescent cells exert harmful effects through the senescence-associated secretory phenotype, or SASP: the release of pro-inflammatory molecules that can adversely affect surrounding cells. This leads to chronic inflammation and age-related diseases, partly explaining why elderly people suffer impaired resilience. Yet how metabolic resilience is involved in survival capacity and SASP has remained unclear.