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Related Experiment Video

Updated: Jul 2, 2026

Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting
11:58

Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting

Published on: March 8, 2018

Retinoic Acid-Functionalized Chitosan Polycationic Conjugates for Integrated Melanoma Therapy and Antibacterial

Sijin Chen1, Jing He2, Chenyun Shen2

  • 1School of Material Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.

ACS Biomaterials Science & Engineering
|June 30, 2026
PubMed
Summary

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Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...

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This study developed retinoic acid-functionalized chitosan polycations to combat melanoma and bacterial infections. These novel biomaterials show significant anticancer and broad-spectrum antimicrobial effects, offering a dual-action therapeutic approach.

Area of Science:

  • Biomaterials Science
  • Oncology
  • Infectious Diseases

Background:

  • Malignant melanoma often leads to bacterial infections post-surgery.
  • Current treatments lack multifunctional agents for combined tumor and infection targeting.

Purpose of the Study:

  • To engineer retinoic acid (RA)-functionalized chitosan polycationic conjugates.
  • To achieve integrated anticancer and antimicrobial activity for melanoma therapy.

Main Methods:

  • Chitosan conjugates functionalized with quaternary ammonium and RA groups were synthesized.
  • In vitro assays assessed cytotoxicity against melanoma cells and antibacterial spectrum (MIC values).
  • Mechanistic studies explored cell death pathways and in vivo efficacy in tumor suppression and infection inhibition.
Keywords:
anticancerantimicrobialchitosanconjugatemelanomaretinoic acid

Related Experiment Videos

Last Updated: Jul 2, 2026

Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting
11:58

Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting

Published on: March 8, 2018

Main Results:

  • The optimized conjugate demonstrated potent melanoma cell inhibition (IC50 = 4 μg/mL).
  • Broad-spectrum antibacterial activity was observed against Gram-positive and Gram-negative bacteria (MIC = 4-32 μg/mL).
  • In vivo studies showed ~70% tumor volume reduction and ~1.5-log reduction in S. aureus wound infection.

Conclusions:

  • RA-functionalized chitosan polycations offer a promising multifunctional biomaterial system.
  • This approach effectively targets melanoma while addressing associated bacterial infections.
  • The conjugates act via membrane disruption, signaling pathways, ROS generation, and apoptosis induction.