What question did this study set out to answer?

The research aims to develop a targeted genetic modification strategy to improve xenotransplantation outcomes.

April 1, 2026Open Access

CMAH‐Targeted Knock‐In of Inducible Heme Oxygenase‐1 and Constitutive CD47 in GGTA1‐Knockout Pigs for Xenotransplantation

Key Points

The research aims to develop a targeted genetic modification strategy to improve xenotransplantation outcomes.
Established a promoter-optimized knock-in strategy for HO1 and CD47 in GGTA1-knockout pigs.
Utilized a dual-promoter system for context-appropriate gene expression.
Planned future in vivo studies to assess graft survival and HO1 inducibility.
Successfully induced expression of HO1 and CD47 in GGTA1-knockout pigs.
Enhanced compatibility of xenografts observed due to improved gene regulation.
Future studies will focus on long-term graft survival.

Abstract

This study successfully established a promoter-optimized locus-specific knock-in strategy for inducing HO1 and constitutive CD47 in GGTA1-knockout pigs. This dual-promoter system enabled context-appropriate expression and enhanced xenograft compatibility. Future in vivo studies are crucial to evaluate long-term graft survival and HO1 inducibility, paving the way for clinical xenotransplantation.

CMAH‐Targeted Knock‐In of Inducible Heme Oxygenase‐1 and Constitutive CD47 in GGTA1‐Knockout Pigs for Xenotransplantation

Key Points

Abstract

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