Related Experiment Video

Updated: Nov 5, 2025

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
05:17

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay

Published on: February 9, 2021

1.8K

Triarylpyrazole Derivatives as Potent Cytotoxic Agents; Synthesis and Bioactivity Evaluation "Pyrazole Derivatives as

Bilqees Sameem1, Ebrahim Saeedian Moghadam1,2, Majid Darabi1

  • 1Department of Medicinal Chemistry, Faculty of Pharmacy and Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.

Drug Research
|May 19, 2021
PubMed
Abstract

Insights

New pyrazole derivatives show promising anticancer activity against colon, brain, and pancreatic cancer cell lines. These compounds effectively induce apoptosis and cell cycle arrest, offering potential for novel cancer therapeutics.

Area of Science:

  • Medicinal Chemistry
  • Organic Synthesis
  • Cancer Biology

Background:

  • Existing anti-cancer agents face challenges with drug resistance and toxicity, such as peripheral neuropathy.
  • The development of novel anti-cancer agents is crucial to overcome these limitations.
  • Pyrazole derivatives represent a class of compounds with potential anti-cancer properties.

Purpose of the Study:

  • To design and synthesize novel pyrazole derivatives.
  • To evaluate the in vitro anticancer activity of these synthesized compounds.
  • To investigate their mechanism of action, including apoptosis induction and cell cycle effects.

Main Methods:

  • Multistep synthesis was employed to prepare a series of target pyrazole compounds.
  • Cytotoxic activity was assessed using the MTT assay against human colon carcinoma (HT-29), epithelial carcinoma (U-87MG), and pancreatic cancer (Panc-1) cell lines.
  • Apoptosis induction and cell cycle analysis were performed using Annexin V/PI staining and flow cytometry.

Main Results:

  • Synthesized 1,3-diaryl-5-(3,4,5-trimethoxyphenyl)-4,5-dihydro-1H-pyrazole and 1,3-diaryl-5-(3,4,5-trimethoxyphenyl)-1H-pyrazole derivatives were obtained in good yields.
  • The synthesized pyrazole scaffolds demonstrated significant cytotoxicity against tested cancer cell lines, comparable to the reference drug paclitaxel.
  • Compounds 3A and 3C notably induced apoptosis and caused cell cycle arrest in the sub-G1 phase in HT-29 cells.

Conclusions:

  • The synthesized pyrazole derivatives exhibit promising anticancer potential.
  • Further exploration and synthesis of related pyrazole analogs are warranted for developing new anti-cancer drugs.
  • These findings support the continued investigation of pyrazole derivatives as a scaffold for novel cancer therapeutics.

More Related Videos

Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines05:07

Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines

Published on: June 23, 2019

6.9K
Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay11:14

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

Published on: November 10, 2013

58.2K

Related Concept Videos

Physical Properties of Amines01:26

Physical Properties of Amines

Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
3.6K
Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para...
3.2K