Novel Paclitaxel Nanoformulation Impairs De Novo Lipid Synthesis in Pancreatic Cancer Cells and Enhances Gemcitabine Efficacy

Authors

Advait Shetty
Prashanth K.B. Nagesh, The University of Texas Rio Grande Valley
Saini Setua
Bilal B. Hafeez, The University of Texas Rio Grande ValleyFollow
Meena Jaggi, The University of Texas Rio Grande Valley
Murali M. Yallapu, The University of Texas Rio Grande ValleyFollow
Subhash C. Chauhan, The University of Texas Rio Grande ValleyFollow

Document Type

Article

Publication Date

4-13-2020

Abstract

Pancreatic cancer (PanCa) is a highly lethal disease with a poor 5 year survival rate, less than 7%. It has a dismal prognosis, and more than 50% of cases are detected at an advanced and metastatic stage. Gemcitabine (GEM) is a gold standard chemotherapy used for PanCa treatment. However, GEM-acquired resistance in cancer cells is considered as a major setback for its continued clinical implementation. This phenomenon is evidently linked to de novo lipid synthesis. PanCa cells rely on de novo lipid synthesis, which is a prime event in survival and one of the key drivers for tumorigenesis, cancer progression, and drug resistance. Thus, the depletion of lipogenesis or lipid metabolism can not only improve treatment outcomes but also overcome chemoresistance, which is an unmet clinical need. Toward this effort, our study reports a unique paclitaxel−poly(lactic-co-glycolic acid) (PLGA) nanoparticles (PPNPs) formulation which can target lipid metabolism and improve anticancer efficacy of GEM in PanCa cells. PPNPs inhibit excessive lipid formation and alter membrane stability with compromised membrane integrity, which was confirmed by Fourier transform infrared and zeta potential measurements. The effective interference of PPNPs in lipid metabolic signaling was determined by reduction in the expression of FASN, ACC, lipin, and Cox-2 proteins. This molecular action profoundly enhances efficacy of GEM as evident through enhanced inhibitory effects on the tumorigenic and metastasis assays in PanCa cells. These data clearly suggest that the ablation of lipid metabolism might offer an innovative approach for the improved therapeutic outcome in PanCa patients.

Comments

© 2020 American Chemical Society. Original published version available at https://dx.doi.org/10.1021/acsomega.0c00793?ref=pdf

Recommended Citation

Shetty, A., Nagesh, P. K. B., Setua, S., Hafeez, B. B., Jaggi, M., Yallapu, M. M., & Chauhan, S. C. (2020). Novel Paclitaxel Nanoformulation Impairs De Novo Lipid Synthesis in Pancreatic Cancer Cells and Enhances Gemcitabine Efficacy. ACS Omega, 5(15), 8982–8991. https://doi.org/10.1021/acsomega.0c00793

First Page

8982

Last Page

8991

Publication Title

ACS Omega

DOI

10.1021/acsomega.0c00793

Academic Level

faculty

Mentor/PI Department

Immunology and Microbiology