Global Proteomic Profiling of Pediatric AML: A Pilot Study

Autor: Junmin Peng, Haiyan Tan, Xueyuan Cao, Jatinder K. Lamba, Huiyun Wu, Stanley Pounds, Nam H.K. Nguyen, Jeffrey E. Rubnitz
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Cancers, Vol 13, Iss 3161, p 3161 (2021)
Cancers
Volume 13
Issue 13
ISSN: 2072-6694
Popis: Acute Myeloid Leukemia (AML) is a heterogeneous disease with several recurrent cytogenetic abnormalities. Despite genomics and transcriptomics profiling efforts to understand AML’s heterogeneity, studies focused on the proteomic profiles associated with pediatric AML cytogenetic features remain limited. Furthermore, the majority of biological functions within cells are operated by proteins (i.e., enzymes) and most drugs target the proteome rather than the genome or transcriptome, thus, highlighting the significance of studying proteomics. Here, we present our results from a pilot study investigating global proteomic profiles of leukemic cells obtained at diagnosis from 16 pediatric AML patients using a robust TMT-LC/LC-MS/MS platform. The proteome profiles were compared among patients with or without core binding factor (CBF) translocation indicated by a t(8
21) or inv(16) cytogenetic abnormality, minimal residual disease status at the end of the first cycle of chemotherapy (MRD1), and in vitro chemosensitivity of leukemic cells to cytarabine (Ara-C LC50). Our results established proteomic differences between CBF and non-CBF AML subtypes, providing insights to AML subtypes physiology, and identified potential druggable proteome targets such as THY1 (CD90), NEBL, CTSF, COL2A1, CAT, MGLL (MAGL), MACROH2A2, CLIP2 (isoform 1 and 2), ANPEP (CD13), MMP14, and AK5.
Databáze: OpenAIRE