Small molecules for impairing endoplasmic reticulum in cancer

Area of Science:

• Cellular Biology
• Biochemistry
• Oncology

Background:

• The endoplasmic reticulum (ER) is crucial for protein homeostasis and calcium (Ca2+) regulation.
• ER stress, or the unfolded protein response (UPR), is activated by an accumulation of unfolded proteins.
• While ER stress supports cancer cell survival, persistent stress can induce cell death, presenting a therapeutic target.

Purpose of the Study:

• To review small molecules, metal complexes, and other compounds that induce ER stress.
• To explore mechanisms by which these agents target ER stress sensors, protein degradation, and chaperones.
• To discuss challenges and future directions in ER-targeted cancer therapy.

Main Methods:

• Literature review of small molecules targeting ER stress.
• Review of metal complexes and miscellaneous compounds inducing ER stress.
• Analysis of mechanisms of ER stress induction and therapeutic potential.

Main Results:

• Various small molecules, metal complexes, and compounds can modulate ER stress pathways.
• These agents target key components of the ER stress response, including sensors, degradation machinery, and chaperones.
• Inducing persistent ER stress is a viable strategy for cancer therapy.

Conclusions:

• Targeting ER stress represents a significant therapeutic avenue for cancer treatment.
• Further research is needed to overcome challenges in developing next-generation ER-targeted therapies.
• Small molecules and metal complexes show potential for novel cancer treatment strategies.