CYP3A4 (Cytochrome P450, family 3, subfamily A, polypeptide 4)

In this work, we propose a novel dual-biosensor platform for TDM, designed to simultaneously detect multiple chemotherapeutic agents-cyclophosphamide, ifosfamide, etoposide, methotrexate, and 5-fluorouracil-for precision oncology. By integrating MWCNTs with cytochrome P450 enzymes (CYP3A4 and CYP2B6), our platform achieves enhanced electron transfer and substrate specificity, enabling sensitive and selective detection of the five chemotherapeutic drugs, individually and in combination, within clinically relevant ranges. Designed for portability and rapid analysis, this dual-biosensor platform enables real-time, cost-effective drug monitoring at the point-of-care, advancing personalized cancer treatment with greater precision and accessibility.

The trough concentrations of venetoclax were 9326.88 ± 12,169.05 ng/mL in patients treated with venetoclax alone, and 31,623.55 ± 28,453.67 ng/mL in patients treated with venetoclax in combination with posaconazole. A rapid and simple method was established and successfully applied to the simultaneous determination of the concentrations of venetoclax and posaconazole in AML patients, providing a basis for TDM and clinical pharmacokinetic analysis of these drugs in AML patients.

Nearly all Brazilian patients with cancer carried at least one actionable PGx variant, highlighting the potential impact of PGx-guided therapy in oncology. These results underscore the value of integrating pharmacogenomic strategies into clinical practice in Brazil.

These data support that, considering its large therapeutic window, asciminib 200 mg twice daily can be used without any dose adjustment when co-administered with a strong CYP3A4 inducer drug. Furthermore, asciminib is not an OATP1B inhibitor up to this dose.

IIE is a rare but severe side effect of ifosfamide infusion, and clinical manifestations in children may be misunderstood. We speculate that pharmacogenetic testing may be warranted in very young children to prevent severe IIE.

This study provides the first comprehensive evidence that Gurigumu-13 possesses significant hepatoprotective and antifibrotic properties. Its antifibrotic effects are mediated through the modulation of metabolic pathways and interactions with multiple molecular targets involved in inflammation, lipid metabolism, and oxidative stress. By integrating metabolomics with network pharmacology, this work offers novel insights into the mechanisms of Gurigumu-13 and supports its potential clinical application for treating liver fibrosis.

Our gene expression-based machine learning model provides a robust tool for HCC diagnosis, prognosis, and treatment response prediction, with potential as a supportive system for personalized clinical decision-making.

A 75-year-old man with mHSPC was treated with Apa and leuprorelin. Apa induced CYP3A4 via the PXR pathway, leading to a sustained DDI with CsA. Careful monitoring is necessary when Apa is coadministered with CYP3A4 substrates.

SIGNIFICANCE STATEMENT: SR12813 activates both pregnane X receptor and peroxisome proliferator-activated receptor gamma, demonstrating dual nuclear receptor modulation in colon cancer cells. By linking xenobiotic metabolism with lipid and mitochondrial pathways, this work uncovers previously unreported receptor crosstalk and provides a mechanistic framework for how diverse ligands can differentially shape transcriptional programs relevant to drug metabolism and tumor biology.

However, the clinical message should not be a blanket prohibition of NSAID use in anticoagulated patients. However, careful and judicious use, at the lowest effective dose and for the shortest necessary duration, should be considered in select clinical situations.

Six compounds were isolated from H. giganteus, with 4 exhibiting antiproliferative activity through PRKCA and GSK3β modulation. These findings provide the first phytochemical and mechanistic evidence that support H. giganteus as a promising source of active anti-colon cancer leads.

Coadministration of multiple doses of carbamazepine 200 mg, a strong CYP3A4 inducer, with a single dose of vepdegestrant 200 mg resulted in a modest (36%) decrease in plasma vepdegestrant exposure. A single dose of vepdegestrant 200 mg was well tolerated in healthy adult participants.