Figure 1 3.1 Providing the material basis for tumor proliferation Serine is catalyzed by serine hydroxymethyltransferase (SHMT) to generate 5,10-methylenetetrahydrofolate with tetrahydrofolate as the carbon carrier, providing essential one-carbon units for the biosynthesis of nucleotides, amino acids and other macromolecules, thereby participating in the regulation of cell proliferation and metabolism ( This reaction contributes to cysteine biosynthesis via the transsulfuration pathway, which is also metabolically linked to the homocysteine-methionine cycle ( de novo synthesis pathway directly replenishes metabolic substrates for rapidly proliferating tumor cells ( In colorectal cancer, phosphoserine aminotransferase 1 (PSAT1) regulates the degradation of cyclin D1 via the mTOR/p70S6K signaling axis, further promoting cell proliferation ( 3.2 Maintaining redox homeostasis in tumor cells The de novo serine synthesis pathway eliminates intracellular reactive oxygen species (ROS) in tumor cells and prevents oxidative stress-induced apoptosis by promoting the production of glutathione (GSH) and nicotinamide adenine dinucleotide phosphate (NADPH) ( Nicotinamide adenine dinucleotide (NAD + ) and its reduced form (NADH) constitute a pivotal intracellular redox couple
In many cases, glossitis is the result of a B12 deficiency anemia known as pernicious anemia
Minimizes Scarring and Stretch Marks: Apart from its anti-aging benefits, microneedling is also effective in reducing the appearance of scars, including acne scars, and stretch marks
Svojim vie-ciljnim mehanizmom djelovanja (protiv-upale, popravak sluznice, angiogeneza) prua novu mogunost za pacijente koji su neuinkoviti ili ne podnose tradicionalne tretmane
We next examined the effect of stromal VEGFA and IL8 on HUVEC vascular formation using conditioned media derived from erastin-treated ESCs
