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Kanathasan JS, Palanisamy UD, Radhakrishnan AK, Chakravarthi S, Thong TB, Swamy V. Protease-targeting peptide-functionalized porous silicon nanoparticles for cancer fluorescence imaging. Nanomedicine (Lond) 2022; 17:1511-1528. [PMID: 36382634 DOI: 10.2217/nnm-2022-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Porous silicon (pSi) nanoparticles (NPs) functionalized with suitable targeting ligands are now established cancer bioimaging agents and drug-delivery platforms. With growing interest in peptides as tumor-targeting ligands, much work has focused on the use of various peptides in combination with pSi NPs for cancer theranostics. Here, the authors investigated the targeting potential of pSi NPs functionalized with two types of peptide, a linear 10-mer peptide and its branched (Y-shaped) equivalent, that respond to legumain activity in tumor cells. Results: In vitro experiments established that the linear peptide-pSi NP conjugate had better aqueous stability under tumor conditions and higher binding efficiency (p < 0.001) toward legumain-expressing cells such as RAW 264.7 cells compared with that of its branched equivalent. In vivo studies (analyzed using ex vivo fluorescence) with the linear peptide-pSi NP formulation using a syngeneic mouse model of breast cancer showed a higher accumulation (p > 0.05) of linear peptide-conjugated pSi NPs in the tumor site within 4 h compared with nonconjugated pSi NPs. These results suggest that the linear peptide-pSi NP formulation is a nontoxic, stable and efficient fluorescence bioimaging agent and potential drug-delivery platform.
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Affiliation(s)
- Jayasree S Kanathasan
- Mechanical Engineering Discipline, School of Engineering, Monash University Malaysia, Bandar Sunway, Subang Jaya, Selangor, 47500, Malaysia
| | - Uma Devi Palanisamy
- Jeffrey Cheah School of Medicine & Health Sciences, Monash University Malaysia, Bandar Sunway, Subang Jaya, Selangor, 47500, Malaysia
| | - Ammu K Radhakrishnan
- Jeffrey Cheah School of Medicine & Health Sciences, Monash University Malaysia, Bandar Sunway, Subang Jaya, Selangor, 47500, Malaysia
| | - Srikumar Chakravarthi
- MAHSA University, Jalan SP 2, Bandar Saujana Putra, Jenjarom, Selangor, 42610, Malaysia
| | - Tan Boon Thong
- Mechanical Engineering Discipline, School of Engineering, Monash University Malaysia, Bandar Sunway, Subang Jaya, Selangor, 47500, Malaysia
| | - Varghese Swamy
- Mechanical Engineering Discipline, School of Engineering, Monash University Malaysia, Bandar Sunway, Subang Jaya, Selangor, 47500, Malaysia
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Kanathasan JS, Gunasagaram D, Khan SU, Palanisamy UD, Radhakrishnan AK, Ahemad N, Swamy V. Linear versus Branched Peptide with Same Amino Acid Sequence for Legumain‐Targeting in Macrophages: Targeting Efficiency and Bioimaging Potential. ChemistrySelect 2020. [DOI: 10.1002/slct.202002161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jayasree S. Kanathasan
- Mechanical Engineering Discipline School of Engineering Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Diivananthan Gunasagaram
- Mechanical Engineering Discipline School of Engineering Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Shafi Ullah Khan
- School of Pharmacy Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Uma D. Palanisamy
- Jeffrey Cheah School of Medicine and Health Sciences Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Ammu Kutty Radhakrishnan
- Jeffrey Cheah School of Medicine and Health Sciences Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Nafees Ahemad
- School of Pharmacy Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
| | - Varghese Swamy
- Mechanical Engineering Discipline School of Engineering Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway 47500 Selangor Malaysia
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