Development of mitochondrial replacement therapy: A review

Area of Science:

• Reproductive medicine
• Genetics
• In vitro fertilization (IVF)

Background:

• Mitochondrial DNA (mt-DNA) mutations can cause severe genetic disorders.
• Current treatments for mitochondrial diseases are limited.
• In vitro fertilization (IVF) offers potential avenues for genetic intervention.

Purpose of the Study:

• To review the various methods of mitochondrial replacement therapy (MRT).
• To discuss the global status and ethical considerations of MRT.
• To highlight the need for social acceptance and clinical application of MRT.

Main Methods:

• Spindle transfer (ST)
• Pronuclear transfer (PNT)
• Polar body transfer (PBT)

Main Results:

• MRT techniques can prevent the transmission of defective mt-DNA to offspring.
• MRT can potentially enhance pregnancy rates in aged individuals through IVF.
• Despite its potential, MRT faces significant moral, social, and cultural objections.

Conclusions:

• MRT represents a significant advancement in reproductive technology for preventing genetic diseases.
• Further research and societal dialogue are crucial for the clinical implementation of MRT.
• Addressing ethical concerns is key to unlocking the full potential of MRT in medical science.