Peptide drugs have shown great potential in the field of disease diagnosis and treatment due to their high activity, low toxicity and high specificity. 하지만, peptide drugs also have some limitations, such as peptides are easily degraded by enzymes in vivo, resulting in a short duration of efficacy and the need for frequent administration, and some peptides may trigger an immune response, affecting the therapeutic efficacy and side effects, and the peptides are poorly water-soluble, which affects his bioavailability. To overcome these challenges, we have successfully developed polyethylene glycol (못) modification to significantly improve the pharmacokinetic properties and increase the stability of peptide drugs. pharmacokinetic properties of peptide drugs, improving their stability and bioavailability.
Technological Breakthroughs
- 통제된 수정: 길이를 정밀하게 제어하기 위해 다양한 PEG 유도체와 링커 암이 개발되었습니다., 변형 효과를 최적화하기 위한 PEG 분자의 분기 구조 및 연결.
- 다기능 수정: PEG 변형과 다른 변형 기술 결합 (예를 들어. 지방산 변형, 글리코실화 변형, 등.) 더 많은 기능성을 지닌 펩타이드 약물을 제공하기 위해, 타겟팅 및 느린 릴리스와 같은.
- 사이트별 수정: 화학합성을 통해, PEG 분자는 활성 부위에 영향을 미치지 않도록 펩타이드의 특정 부위에 정확하게 부착됩니다..
기술적 장점
반감기 연장: PEG 변형은 펩타이드 분자의 크기를 증가시킬 수 있습니다, 신장 여과 감소, 효소 분해로부터 펩타이드를 보호합니다., 따라서 반감기가 크게 연장됩니다..
면역원성 감소: Masking the antigenic epitopes on the surface of the peptide reduces its immunogenicity and minimizes side effects.
Improved solubility: Successfully improved the solubility and bioavailability of peptide drugs.
Enhancement of stability: Successfully improve the thermal and chemical stability of peptide drugs, and extend their storage period.
Application Fields
Peptide PEG modification technology has a wide range of applications in many fields, ~와 같은:
Drug development: Used to develop long-lasting, low-toxicity, targeted peptide drugs, such as anti-cancer peptides, antibacterial peptides, analgesic peptides, 등.
Diagnostic reagents: for the development of highly sensitive and specific peptide diagnostic reagents, such as tumor marker detection reagents, virus detection reagents.
생체재료: Used to develop biocompatible and functional peptide biomaterials, 조직 공학 지지체 및 약물 전달 시스템과 같은.
