[Recent advances in gene therapy and future prospects].

Area of Science:

• Biotechnology and Genetic Engineering
• Molecular Medicine
• Cellular Biology

Context:

• Gene therapy, a method for treating diseases by introducing normal genes, is advancing due to genetic engineering.
• Hematopoietic stem cells were initially targeted for gene transfer in genetic diseases, but faced challenges with transient and unstable gene expression.
• Alternative somatic cell gene therapy approaches using nonhematopoietic cells offer advantages.

Purpose:

• To explore the feasibility and advantages of alternative somatic cell gene therapy approaches.
• To address the limitations of transient gene expression observed with hematopoietic stem cell gene transfer.
• To highlight the potential of nonhematopoietic cells for therapeutic gene delivery.

Summary:

• Gene therapy is becoming increasingly feasible with advances in genetic engineering.
• While hematopoietic stem cells have been a target, issues with transient gene expression persist.
• Somatic cell gene therapy using nonhematopoietic cells (e.g., lymphocytes, fibroblasts) presents a viable alternative.
• Clinical applications of gene transfer into lymphocytes for cancer and immunodeficiency are emerging.

Impact:

• The development of stable and effective gene therapy strategies for genetic and acquired diseases.
• Potential for treating a wider range of conditions, including cancer and infectious diseases, through nonhematopoietic cell gene therapy.
• The recent approval of clinical trials using gene transfer into lymphocytes marks a significant step towards a new era in molecular medicine.