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Transducible recombinant small heat shock-related protein, HSP20, inhibits vasospasm and platelet aggregation
- Source :
- Surgery. 136:573-578
- Publication Year :
- 2004
- Publisher :
- Elsevier BV, 2004.
-
Abstract
- Background Human saphenous vein (HSV) is the autologous conduit of choice for peripheral vascular reconstruction. Injury during harvest leads to vasospasm and a thrombogenic endoluminal surface. A proteomic transduction approach was developed to prevent vein graft vasospasm and thrombosis. Methods Recombinant HSP20 protein linked to the TAT protein transduction domain was generated in a bacterial expression system (TAT-HSP20). The effect of this protein on the inhibition of smooth muscle contraction was determined using rings of rabbit aorta and HSV in a muscle bath. In addition, the effects of TAT-HSP20 on platelet aggregation were determined in vitro using human citrated whole blood. Results Recombinant TAT-HSP20 inhibited norepinephrine-induced contraction of rabbit aortic and HSV segments. Similarly, TAT-HSP20 induced smooth muscle relaxation in HSV segments precontracted with norepinephrine. In human-citrated whole blood, platelet aggregation was significantly inhibited by TAT-HSP20 in a dose-dependent manner. Conclusions The results of this study demonstrate that recombinant TAT-HSP20 inhibits vascular smooth muscle contraction and platelet aggregation. This suggests that HSP20 may be an ideal effector molecule to target as a proteomic approach to enhance early vein graft patency rates by preventing acute vasospasm and thrombosis.
- Subjects :
- Contraction (grammar)
Platelet Aggregation
viruses
Myocytes, Smooth Muscle
In Vitro Techniques
Pharmacology
medicine
Animals
Humans
HSP20 Heat-Shock Proteins
Saphenous Vein
Platelet
Aorta
Heat-Shock Proteins
Whole blood
business.industry
fungi
Vasospasm
Smooth muscle contraction
Phosphoproteins
medicine.disease
Peptide Fragments
Recombinant Proteins
Vasoconstriction
Hemostasis
Anesthesia
Gene Products, tat
cardiovascular system
Blood Vessels
Surgery
Rabbits
medicine.symptom
Vascular smooth muscle contraction
business
Subjects
Details
- ISSN :
- 00396060
- Volume :
- 136
- Database :
- OpenAIRE
- Journal :
- Surgery
- Accession number :
- edsair.doi.dedup.....a31c247dbe82b7db5fbbbf461b3a239a
- Full Text :
- https://doi.org/10.1016/j.surg.2004.04.024