Doxorubicin cardiotoxicity and target cells: a broader perspective

Area of Science:

• Oncology
• Cardiology
• Cell Biology

Background:

• Doxorubicin cardiotoxicity is a growing concern in cancer survivor care.
• The exact mechanisms of doxorubicin-induced heart damage are not fully understood.
• Traditional focus on cardiomyocytes overlooks other cellular targets involved in heart health.

Purpose of the Study:

• To review the diverse cellular targets of doxorubicin cardiotoxicity.
• To explore the role of cardiac progenitor cells in doxorubicin's effects.
• To highlight mechanisms contributing to compromised heart function.

Main Methods:

• Literature review of studies on doxorubicin cardiotoxicity.
• Analysis of cellular and molecular mechanisms.
• Discussion of implications for cardiac homeostasis.

Main Results:

• Doxorubicin impacts not only cardiomyocytes but also other cell types, including cardiac progenitor cells.
• Key contributing factors include oxidative stress, DNA damage, senescence, and apoptosis.
• These cellular dysfunctions compromise myocardial functional properties.

Conclusions:

• A broader cellular perspective is crucial for understanding doxorubicin cardiotoxicity.
• Targeting cardiac progenitor cells and related mechanisms may offer novel cardioprotective strategies.
• This approach could lead to improved clinical and experimental interventions for cancer patients.