Antipsychotic dopamine receptor antagonists, cancer, and cancer stem cells

Md Saiful Islam Roney1, Song-Kyu Park2,3

  • 1College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, Republic of Korea.

Insights

Targeting cancer stem cells (CSCs) is crucial for treating metastatic cancers. Antipsychotic dopamine receptor (DR) antagonists show promise in sensitizing CSCs to chemotherapy, offering a new therapeutic avenue.

Area of Science:

  • Oncology
  • Pharmacology
  • Cancer Biology

Background:

  • Metastatic cancers present significant therapeutic challenges due to drug resistance.
  • Cancer stem cells (CSCs) are implicated in cancer recurrence and treatment failure.
  • Existing therapeutic strategies often fail to effectively target CSCs.

Purpose of the Study:

  • To review current strategies for targeting cancer stem cells (CSCs).
  • To explore the potential of dopamine receptor (DR) antagonists in cancer therapy.
  • To highlight the efficacy of antipsychotic DR antagonists in sensitizing CSCs to chemotherapy.

Main Methods:

  • Review of existing literature on CSCs and their role in cancer.
  • Analysis of studies investigating dopamine receptors (DRs) in various cancer types.
  • Examination of research on antipsychotic DR antagonists and their mechanism of action on CSCs.

Main Results:

  • Dopamine receptors (DRs) are frequently found in diverse cancer types.
  • Antipsychotic DR antagonists demonstrate significant ability to restrain and sensitize CSCs.
  • The differentiation approach using DR antagonists enhances CSC sensitivity to conventional chemotherapeutics.

Conclusions:

  • Targeting CSCs is a promising strategy for overcoming cancer drug resistance.
  • Antipsychotic DR antagonists represent a novel class of drugs with potential in cancer treatment.
  • Further research into DR antagonists could lead to more effective CSC-targeting therapies.

Related Concept Videos

Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists01:28

Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists

Prokinetic agents are specialized medications that stimulate gastrointestinal (GI) motility, promoting food movement through the GI tract. Dopamine, an inhibitory neurotransmitter, plays a significant role in this process, reducing GI motility and indirectly controlling the speed of digestion. Dopamine receptor antagonists, such as metoclopramide and domperidone, offer a unique advantage as prokinetic agents. By blocking the dopamine receptors, these drugs increase GI motility, improving food...
1.4K
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists01:29

Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists

Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
923
Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
6.0K
Distinctive Features of Adult Stem Cells vs Cancer Stem Cells01:18

Distinctive Features of Adult Stem Cells vs Cancer Stem Cells

A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
4.5K
Drug-Receptor Interaction: Antagonist01:28

Drug-Receptor Interaction: Antagonist

An antagonist is a drug that binds strongly to a receptor without activating it. An antagonist prevents other molecules, such as neurotransmitters or hormones, from binding to the receptor and triggering a cellular response. Such interaction effectively hinders the normal physiological processes mediated by the receptor, resulting in various pharmacological effects depending on the specific receptor targeted.
Antagonists can be classified as competitive or noncompetitive based on their...
5.1K
Antiasthma Drugs: Muscarinic Receptor Antagonists01:20

Antiasthma Drugs: Muscarinic Receptor Antagonists

Muscarinic receptor antagonists, also known as antimuscarinic agents, are a class of bronchodilators used to treat asthma, although they are more commonly used to treat COPD. They work by inhibiting the action of acetylcholine (ACh), a neurotransmitter, on muscarinic receptors found in the airways.
Antimuscarinic agents compete with ACh for the same binding site on the muscarinic receptors. By binding to these receptors, they inhibit the downstream effects of ACh and block the parasympathetic...
1.8K