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Jobayer Sonju J, Shrestha P, Dahal A, Gu X, Johnson WD, Zhang D, Mohan Reddy Muthumula C, Meyer SA, Mattheolabakis G, Jois SD. Lyophilized liposomal formulation of a peptidomimetic-Dox conjugate for HER2 positive breast and lung cancer. Int J Pharm 2023; 639:122950. [PMID: 37059241 DOI: 10.1016/j.ijpharm.2023.122950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 03/20/2023] [Accepted: 04/09/2023] [Indexed: 04/16/2023]
Abstract
Nanocarrier-mediated administration of chemotherapeutic drugs can increase the therapeutic index of drugs by reducing off-target site toxicity. Ligand-targeted drug delivery can be utilized to deliver chemotherapeutic drugs to cancer cells selectively and specifically. Here we report the evaluation of a lyophilized formulation of a liposome containing a peptidomimetic-doxorubicin conjugate for targeted delivery of doxorubicin to HER2-positive cancer cells. The lyophilized liposomal formulation exhibited improved release of peptidomimetic-doxorubicin conjugate at pH 6.5 compared to 7.4 and improved cellular uptake in cancer cells at pH 6.5. In vivo studies indicated that pH-sensitive formulation exhibited site-specific formulation delivery and improved anticancer efficacy than free doxorubicin. The findings suggested that combining a lyophilized pH-sensitive liposomal formulation containing trehalose as lyoprotectant with a targeting ligand coupled cytotoxic agent is a potential method for cancer chemotherapy while maintaining long-term stability at 4°C of the liposome formulation.
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Affiliation(s)
- Jafrin Jobayer Sonju
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201
| | - Prajesh Shrestha
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201
| | - Achyut Dahal
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201
| | - Xin Gu
- Department of Pathology, Louisiana State University Health Sciences Center, 1501 Kings Hwy, Shreveport, LA 71103, USA
| | - William D Johnson
- Biostatistics Department, Pennington Biomedical Research Center, Baton Rouge, LA 70808
| | - Dachuan Zhang
- Biostatistics Department, Pennington Biomedical Research Center, Baton Rouge, LA 70808
| | - Chandra Mohan Reddy Muthumula
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201
| | - Sharon A Meyer
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201
| | - George Mattheolabakis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201
| | - Seetharama D Jois
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201.
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