Citation: Tong Tong, Lezong Chen, Siying Wu, Zhong Cao, Yuanbin Song, Jun Wu. Establishment of a leucine-based poly(ester amide)s library with self-anticancer effect as nano-drug carrier for colorectal cancer treatment[J]. Chinese Chemical Letters, ;2024, 35(12): 109689. doi: 10.1016/j.cclet.2024.109689 shu

Establishment of a leucine-based poly(ester amide)s library with self-anticancer effect as nano-drug carrier for colorectal cancer treatment

Tong Tong ^{a, 1} ,
Lezong Chen ^{b, 1} ,
Siying Wu ^{c, 1} ,
Zhong Cao ^{a, *,} ,
Yuanbin Song ^{b, *,} ,
Jun Wu ^{c, d, e, *,}

a.
School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518057, China
b.
Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
c.
Bioscience and Biomedical Engineering Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511400, China
d.
Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR 999077, China
e.
Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China

caozhong@mail.sysu.edu.cn

songyb@sysucc.org.cn

junwuhkust@ust.hk

Received Date: 2 February 2024
Revised Date: 27 February 2024
Accepted Date: 29 February 2024
Available Online: 2 March 2024

Figures(8)

Colorectal cancer is a common cancer worldwide. Traditional chemotherapeutic drugs often face limitations such as poor aqueous solubility and high systemic toxicity, which can lead to adverse side effects and limited therapeutic efficacy. In this study, a library of one kind of biodegradable and biocompatible polymer, leucine based-poly(ester amide)s (Leu-PEAs) was developed and utilized as drug carrier. The structure of Leu-PEAs can be tuned to alter their physicochemical properties, enhancing drug loading capacity and delivery efficiency. Leu-PEAs can self-assemble into nanoparticles by nanoprecipitation and load paclitaxel (PTX) with the diameter of ~108 nm and PTX loading capacity of ~8.5%. PTX-loaded Leu-PEAs nanoparticles (PTX@Leu-PEAs) demonstrated significant inhibition of CT26 cell growth in vitro. In vivo, these nanoparticles exhibited prolonged tumor accumulation and antitumor effects, with no observed toxicity to normal organs. Furthermore, blank Leu-PEAs nanoparticles also showed antitumor effects in vitro and in vivo, which may be attributed to the activation of the mammalian target of rapamycin (mTOR) pathway by leucine. Consequently, this biocompatible Leu-PEAs nano-drug delivery system shows potential as a promising strategy for colorectal cancer treatment, warranting further investigation.
- Leucine-based poly(ester amide)s,
- Structure-property,
- Nanoplatform,
- Drug delivery,
- Colorectal cancer
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