Evaluation of Contamination and Quantification of Drug Penetration Studies Using Quantitative Mass Spectrometry Imaging
Quantitative Mass Spectrometry Imaging QMSI LC-MS/MS drug penetration skin tissues topical application hair follicles sebaceous glands dermis contamination histological staining mass spectrometry liquid chromatography-tandem mass spectrometry skin topical drugs oil glands skin contamination tissue staining
Studysummary This study found that Quantitative Mass Spectrometry Imaging offers precise localization and quantification of active compounds in skin tissues, demonstrating benefits over traditional LC-MS in drug penetration studies.
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The study compared Quantitative Mass Spectrometry Imaging (QMSI) and LC-MS/MS techniques for evaluating drug penetration in skin tissues. QMSI, applied to human and mice tissues after topical application, provided detailed molecular images showing drug localization and concentration in different skin structures, such as hair follicles and sebaceous glands. The results demonstrated a 20-25% similarity with LC-MS/MS, validating QMSI's accuracy. Additionally, QMSI identified potential dermis contamination during sample preparation. The study concluded that QMSI, combined with histological staining, is a valuable multimodal approach for preclinical and clinical drug penetration studies.
