FASN (Fatty acid synthase)

Collectively, our findings reveal that SREBP1 drives ccRCC malignancy through a dual-pronged mechanism-repressing ACSL4 and activating FASN-to alter the PUFAs/MUFAs balance and establish a feed-forward loop that sustains ferroptosis suppression. ACSL4 represents a potential prognostic biomarker, and targeting the SREBP1-ACSL4/FASN axis offers a promising therapeutic strategy for ccRCC.

CuHL1 exhibits potent cytotoxicity in the low micromolar range (IC50 ≈ 2 µM), surpassing cisplatin by up to 81-fold...Functional assays confirm reduced migratory capacity in MDA-MB-231 cells. These findings position CuHL1 as a promising candidate for TNBC therapy, meriting further in vivo evaluation.

Functional enrichment analysis further linked the ABCC1-centred phospho-network to carcinogenesis, cell-cycle regulation, and drug resistance pathways, highlighting its systems-level role in cancer biology. From a translational perspective, our findings identify phosphosites within the ABCC1 linker domain as actionable regulatory nodes that may be exploited to modulate transporter function, offering potential strategies to overcome chemoresistance.

Moreover, troxerutin significantly (p < 0.05) upregulated the expression of PPARα and PPARγ, while the expression of FAS, SREBP-1c, TNF-α, and IL-6 genes were significantly (p < 0.05) downregulated simultaneously in the adipose tissue, skeletal muscles, and liver in a dose-dependent manner, compared to diabetic ct control rats. Troxerutin has considerable antidiabetic and antihypercholesterolemic potential and thus could be safely used as an alternative therapeutic compound to the standard antidiabetic drug metformin.

Importantly, inhibition of lipid accumulation with the fatty acid synthase inhibitor C75 reduced PRG4+ macrophage numbers, attenuated fibrosis, and suppressed lung metastasis. Together, these findings implicate long-term tamoxifen treatment as a potential risk factor for lung metastasis in ER-positive BC by disrupting the lung microenvironment, and suggest that targeting lipid metabolism may represent a therapeutic strategy to limit metastatic progression, particularly in the lung.

Further mechanistic investigations reveal that KLF1 inhibits ACSL4 expression via transcriptional repression and suppresses ferroptosis through the ACSL4/LPCAT3 axis, ultimately promoting HCC tumour growth as well as its advancement. In conclusion, KLF1 is essential for onset as well as development in HCC through inhibiting ACSL4 transcription along with ferroptosis, thereby presenting novel therapeutic targets for HCC treatment.

Although the FDA-approved combination of encorafenib and cetuximab provides clinical benefit in this population, only 22% of patients respond and most eventually develop resistance...Importantly, we demonstrate that addition of TVB3664 to the PLX8394 or encorafenib regimen significantly postpones development of resistance to BRAF-targeted therapy by inhibiting the cell cycle progression via a decrease in pRb (Ser780) and downregulation of E2F transcription factor and Cyclin D1 expression. Consistently, clinical data show that patients with BRAFV600E CRC who have high FASN expression in tumor tissues have higher expression of cell cycle-associated genes, including CDKs, E2F, CCDN1 (Cyclin D1), survivin, and MKI67. Collectively, these findings identify FASN-driven lipid metabolism as a critical mediator of resistance to BRAF-targeted therapy and suggest that incorporation of FASN inhibitors may enhance therapeutic efficacy and delay acquired resistance in BRAFV600E CRC.

Notably, ptr-6(W701*) robustly rescued the embryonic lethality and permeability defects caused by fasn-1 loss-of-function. Taken together, our findings expand the genetic regulatory network of fatty acid synthase during early embryogenesis and highlight ptr-6 and Hedgehog signaling pathway as potential genetic modifiers of FASN - associated developmental and metabolic disorders.

These findings suggest that therapeutic inhibition of FA synthesis may be promising for treating PDAC patients with active c-Myc/GRPEL1/FASN signaling. Overall, this study demonstrates that FA synthesis mediated by the c-Myc/GRPEL1/FASN axis is essential for PDAC growth.

Furthermore, PS reduced hepatic pro-inflammatory cytokine mRNA levels: tumor necrosis factor α(tnf-α), cyclooxygenase 2 (cox-2), and interleukins (il-6, il-1β). In conclusion, dietary inclusion of 0.006%-0.018% PS effectively enhanced growth and antioxidant capacity, altered lipid handling, and affected transcriptional inflammatory responses.

Moreover, 4 exhibited a high selectivity index toward Hep-G2 cells (SI = 260.00) and inhibited the migration and invasion of Hep-G2 cells. These findings may serve as a valuable reference for the development of novel FASN inhibitors exhibiting potent anti-hepatocellular carcinoma activity.

PF effectively attenuated hepatic metabolic dysregulation, inflammation, and fibrotic activation through inhibition of this pathway. Our work provided the first evidence establishing the SYK/SH3BP2 signaling axis as a pivotal pathway in MASLD progression, unveiling novel therapeutic targets while furnishing a mechanistic foundation for PF's potential application in MASLD treatment.