PMID- 36778300 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240506 DP - 2023 Jan 30 TI - Alleviating iatrogenic effects of paclitaxel via anti-inflammatory treatment. LID - rs.3.rs-2487922 [pii] LID - 10.21203/rs.3.rs-2487922/v1 [doi] AB - BACKGROUND: Paclitaxel is touted as an essential medicine due to its extensive use as a chemotherapeutic for various cancers and an antiproliferative agent for restenosis. Due to recent concerns related to long-term mortality, paclitaxel (PTX)-based endovascular therapy is now surrounded by controversies. OBJECTIVE: Examine the inflammatory mediators driven by the systemic administration of PTX and explore the means to suppress these effects. METHODS: RNAseq analysis, cell and mouse models. RESULTS: RNAseq analysis of primary human endothelial cells (ECs) treated with PTX demonstrated transcriptional perturbations of a set of pro-inflammatory mediators, including monocyte chemoattractant protein-1 (MCP-1) and CD137, which were validated in EC lysates. These perturbations were abrogated with dexamethasone, a prototypic anti-inflammatory compound. The media of ECs pre-treated with PTX showed a significant increase in MCP-1 levels, which were reverted to baseline levels with DEX treatment. A group of mice harvested at different time points after PTX injection were analyzed for immediate and delayed effects of PTX. A 3-fold increase in MCP-1 was noted in blood and aortic ECs after 12 hours of PTX treatment. Similar changes in CD137 and downstream mediators such as tissue factor, VCAM-1 and E-selectin were noted in aortic ECs. CONCLUSIONS: Our study shows that systemic PTX exposure upregulates atherothrombotic markers, and co-delivery of DEX can subdue the untoward toxic effects. Long-term studies are needed to probe the mechanisms driving systemic complications of PTX-based therapies and evaluate the clinical potential of DEX to mitigate risk. FAU - Zhang, Mengwei AU - Zhang M AD - Boston University. FAU - Lotfollahzadeh, Saran AU - Lotfollahzadeh S AD - Boston University. FAU - Elzinad, Nagla AU - Elzinad N AD - Boston University. FAU - Yang, Xiaosheng AU - Yang X AD - Boston University. FAU - Elsadawi, Murad AU - Elsadawi M AD - Boston University. FAU - Gower, Adam AU - Gower A AD - Boston University. FAU - Belghasem, Mostafa AU - Belghasem M AD - Boston University. FAU - Shazly, Tarek AU - Shazly T AD - University of South Carolina. FAU - Kolachalama, Vijaya B AU - Kolachalama VB AUID- ORCID: 0000-0002-5312-8644 AD - Boston University. FAU - Chitalia, Vipul AU - Chitalia V AD - Boston University. LA - eng GR - RF1 AG062109/AG/NIA NIH HHS/United States GR - R01 HL159620/HL/NHLBI NIH HHS/United States GR - R21 CA253498/CA/NCI NIH HHS/United States GR - R21 DK119740/DK/NIDDK NIH HHS/United States GR - UL1 TR001430/TR/NCATS NIH HHS/United States PT - Preprint DEP - 20230130 PL - United States TA - Res Sq JT - Research square JID - 101768035 UIN - Vasc Med. 2024 Apr 16;:1358863X241231942. PMID: 38623630 PMC - PMC9915804 OTO - NOTNLM OT - Peripheral artery disease OT - dexamethasone OT - drug coated balloon OT - inflammation OT - paclitaxel COIS- Competing interests: None EDAT- 2023/02/14 06:00 MHDA- 2023/02/14 06:01 PMCR- 2023/02/10 CRDT- 2023/02/13 03:46 PHST- 2023/02/14 06:00 [pubmed] PHST- 2023/02/14 06:01 [medline] PHST- 2023/02/13 03:46 [entrez] PHST- 2023/02/10 00:00 [pmc-release] AID - rs.3.rs-2487922 [pii] AID - 10.21203/rs.3.rs-2487922/v1 [doi] PST - epublish SO - Res Sq [Preprint]. 2023 Jan 30:rs.3.rs-2487922. doi: 10.21203/rs.3.rs-2487922/v1.