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Related Concept Videos

Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:

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Related Experiment Video

Updated: May 19, 2026

Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay
11:14

Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay

Published on: November 10, 2013

Somatostatin subtype-2 receptor-targeted metal-based anticancer complexes.

Flavia Barragán1, Dolors Carrion-Salip, Irene Gómez-Pinto

  • 1Departament de Química Orgànica and IBUB, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain.

Bioconjugate Chemistry
|August 9, 2012
PubMed
Summary

Novel metal-based anticancer drug conjugates targeting somatostatin receptors show antiproliferative activity in tumor cells. These hybrid compounds demonstrate potential for specific tumor cell targeting, offering new insights into drug design.

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Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
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Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?

Published on: June 13, 2014

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Last Updated: May 19, 2026

Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay
11:14

Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay

Published on: November 10, 2013

Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
14:20

Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?

Published on: June 13, 2014

Area of Science:

  • Medicinal Chemistry
  • Oncology
  • Bioconjugation

Background:

  • Somatostatin receptors are overexpressed on tumor cells, making them attractive targets for cancer therapy.
  • Octreotide analogues are potent somatostatin agonists with potential for drug delivery.

Purpose of the Study:

  • To synthesize and characterize novel metal-based anticancer drug conjugates using a dicarba analogue of octreotide.
  • To evaluate the antiproliferative activity and cellular uptake mechanisms of these conjugates.

Main Methods:

  • Solid-phase synthesis of metal-peptide conjugates.
  • NMR spectroscopy and molecular dynamics for structural analysis.
  • In vitro antiproliferative assays on human tumor and normal cell lines.

Main Results:

  • Conjugates 3-5 showed hydrolysis and DNA binding, while conjugate 6 was substitution-inert.
  • Conjugate 6 exhibited significant antiproliferative activity against MCF-7 and DU-145 cells.
  • Somatostatin receptor-mediated cellular uptake was observed for conjugate 6.
  • Similar cytotoxic activity was noted in normal CHO cells, correlating with somatostatin subtype-2 receptor expression.

Conclusions:

  • Conjugate formation did not significantly alter the peptide structure.
  • Metal-peptide conjugates offer a promising strategy for targeted cancer therapy.
  • Understanding receptor-binding effects is crucial for developing effective metal-based anticancer drugs.