Your browser doesn't support javascript.
loading
Study of novel coating strategy for coronary stents: simutaneous coating of VEGF and anti- CD34 antibody / Estudo da nova estratégia de revestimento para stents coronários: revestimento simultâneo de VEGF e anticorpo anti-CD34
Song, Chun-Li; Li, Qian; Yu, Yun-Peng; Wang, Guan; Wang, Jin-Peng; Lu, Yang; Zhang, Ji-Chang; Diao, Hong-Ying; Liu, Jian-Gen; Liu, Yi-Hang; Liu, Jia; Li, Ying; Cai, Dan; Liu, Bin.
  • Song, Chun-Li; Jilin University. The Second Hospital. Changchun. CN
  • Li, Qian; Jilin University. The Second Hospital. Changchun. CN
  • Yu, Yun-Peng; Jilin University. The Second Hospital. Changchun. CN
  • Wang, Guan; Jilin University. The Second Hospital. Changchun. CN
  • Wang, Jin-Peng; Jilin University. The Second Hospital. Changchun. CN
  • Lu, Yang; Jilin University. The Second Hospital. Changchun. CN
  • Zhang, Ji-Chang; Jilin University. The Second Hospital. Changchun. CN
  • Diao, Hong-Ying; Jilin University. The Second Hospital. Changchun. CN
  • Liu, Jian-Gen; Jilin University. The Second Hospital. Changchun. CN
  • Liu, Yi-Hang; Jilin University. The Second Hospital. Changchun. CN
  • Liu, Jia; Jilin University. The Second Hospital. Changchun. CN
  • Li, Ying; Jilin University. The Second Hospital. Changchun. CN
  • Cai, Dan; Jilin University. The Second Hospital. Changchun. CN
  • Liu, Bin; Jilin University. The Second Hospital. Changchun. CN
Rev. bras. cir. cardiovasc ; 30(2): 159-163, Mar-Apr/2015. tab, graf
Article in English | LILACS | ID: lil-748942
ABSTRACT
Abstract

Introduction:

Intravascular coronary stenting has been used in the treatment of coronary artery disease (CAD), with a major limitation of in-stent restenosis (ISR). The 316 stainless steel has been widely used for coronary stents. In this study, we developed a novel coating method to reduce ISR by simultaneously coating vascular endothelial growth factor (VEGF) and anti-CD34 antibody on 316L stainless steel.

Methods:

Round 316L stainless steel sheets in the D-H group were polymerized with compounds generated from condensation reaction of dopamine and heparin using N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide (EDC) and N-hydroxysuccinimide (NHS). Sixteen sheets from the D-H group were further immersed into 1ug/ml VEGF165 and 3mg/ml heparin sodium one after another for 10 times, and named as the D-(H-V)10 group. Eight sheets from the D-(H-V)10 group were coated with anti-CD34 antibody and termed as the D-(H-V)10-A group. Immunofluorescence assay and ELISA were used to evaluate whether the 316L stainless steel disks were successfully coated with VEGF and anti-CD34 antibody.

Results:

The results of immunofluorescence assay and ELISA showed that VEGF could be detected in the D-(H-V)10 and D-(H-V)10-A group, suggesting the steel sheets were successfully covered with VEGF. Anti-CD34 antibody could only be observed in the D-(H-V)10-A group, which was the only group coated with CD34 antibody. Both results suggested that the 316L stainless steel sheets were successfully coated with VEGF and anti-CD34 antibody.

Conclusion:

Our study developed a method to simultaneously coat VEGF and anti-CD34 antibody to stainless metal steel. This research serves as a fundamental role for a novel coating strategy. .
RESUMO
Resumo

Introdução:

O stent coronário intravascular tem sido utilizado no tratamento de doença arterial coronária, com uma maior limitação de restenose intra-stent (RIS). O aço inoxidável 316 tem sido amplamente utilizado para stents. Neste estudo, foi desenvolvido um novo método de revestimento para reduzir a RIS para revestir simultaneamente o fator de crescimento endotelial vascular (VEGF) e anti-CD34 em aço inoxidável 316L.

Métodos:

Placas de aço inoxidável 316L redondas no grupo DH foram polimerizadas com compostos gerados a partir da reacção de condensação de dopamina e heparina utilizando N- (3-dimetilaminopropil) -N'-etilcarbodiimida (EDC) e N-hidroxissuccinimida (NHS). Dezesseis folhas a partir do grupo DH foram ainda imersas em 1 ug/ml de VEGF 165 e 3 mg/ml de heparina sódica, um após outro por 10 vezes, sendo denominado como o grupo D-(HV)10. Oito folhas de D-(HV)10 foram revestidas com anticorpo anti-CD34 e denominado como grupo D-(HV)10-A. Testes de imunofluorescência e ELISA foram usados para avaliar se os discos de aço inoxidável 316L foram revestidos com sucesso com VEGF e anticorpo anti-CD34.

Resultados:

Os resultados dos testes de imunofluorescência e ELISA mostraram que o VEGF pôde ser detectado nos grupos D-(HV)10 e D-(HV)10-A, evidenciando que as chapas de aço foram cobertas com VEGF com sucesso. O anticorpo anti-CD34 podia apenas ser observado no grupo D-(HV)10-A, o único grupo revestido com anticorpo CD34. Ambos os resultados sugerem que as chapas de aço inoxidável 316L foram revestidas com sucesso com VEGF e anticorpo anti-CD34.

Conclusão:

Nosso estudo desenvolveu um método para revestir simultaneamente VEGF e anti-CD34 de aço inoxidável. Esta pesquisa tem um papel fundamental para a nova estratégia de revestimento. .
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Stainless Steel / Coated Materials, Biocompatible / Vascular Endothelial Growth Factor A / Drug-Eluting Stents Limits: Humans Language: English Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2015 Type: Article / Project document Affiliation country: China Institution/Affiliation country: Jilin University/CN

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Index: LILACS (Americas) Main subject: Stainless Steel / Coated Materials, Biocompatible / Vascular Endothelial Growth Factor A / Drug-Eluting Stents Limits: Humans Language: English Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2015 Type: Article / Project document Affiliation country: China Institution/Affiliation country: Jilin University/CN