CorMatrix Wrapped Around the Adventitia of the Arteriovenous Fistula Outflow Vein Attenuates Venous Neointimal Hyperplasia

Binxia Yang, Sreenivasulu Kilari, Akshaar Brahmbhatt, Deborah L. McCall, Evelyn Nieves Torres, Edward B Leof, Debabrata Mukhopadhyay, Sanjay Misra

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Venous neointimal hyperplasia (VNH) at the outflow vein of hemodialysis AVF is a major factor contributing to failure. CorMatrix is an extracellular matrix that has been used in cardiovascular procedures primarily as scaffolding during surgery. In the present study, we sought to determine whether CorMatrix wrapped around the outflow vein of arteriovenous fistula (AVF) at the time of creation could reduce VNH. In mice, the carotid artery to the ipsilateral jugular vein was connected to create an AVF, and CorMatrix scaffold was wrapped around the outflow vein compared to control mice that received no scaffolding. Immunohistochemistry, Western blot, and qRT-PCR were performed on the outflow vein at 7 and 21 days after AVF creation. In outflow veins treated with CorMatrix, there was an increase in the mean lumen vessel area with a decrease in the ratio of neointima area/media + adventitia area (P < 0.05). Furthermore, there was a significant increase in apoptosis, with a reduction in cell density and proliferation in the outflow veins treated with CorMatrix compared to controls (P < 0.05). Immunohistochemical analysis revealed a significant reduction in fibroblasts, myofibroblasts, macrophages, and leukocytes with a reduction in Tnf-α gene expression (P < 0.05). In conclusion, outflow veins treated with CorMatrix have reduced VNH.

Original languageEnglish (US)
Article number14298
JournalScientific Reports
Volume7
Issue number1
DOIs
StatePublished - Dec 1 2017

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Adventitia
Arteriovenous Fistula
Hyperplasia
Veins
Neointima
Myofibroblasts
Jugular Veins
Carotid Arteries
Extracellular Matrix
Renal Dialysis
Leukocytes
Fibroblasts
Cell Count
Western Blotting
Immunohistochemistry
Macrophages
Cell Proliferation
Apoptosis
Gene Expression
Polymerase Chain Reaction

ASJC Scopus subject areas

  • General

Cite this

CorMatrix Wrapped Around the Adventitia of the Arteriovenous Fistula Outflow Vein Attenuates Venous Neointimal Hyperplasia. / Yang, Binxia; Kilari, Sreenivasulu; Brahmbhatt, Akshaar; McCall, Deborah L.; Torres, Evelyn Nieves; Leof, Edward B; Mukhopadhyay, Debabrata; Misra, Sanjay.

In: Scientific Reports, Vol. 7, No. 1, 14298, 01.12.2017.

Research output: Contribution to journalArticle

Yang, Binxia ; Kilari, Sreenivasulu ; Brahmbhatt, Akshaar ; McCall, Deborah L. ; Torres, Evelyn Nieves ; Leof, Edward B ; Mukhopadhyay, Debabrata ; Misra, Sanjay. / CorMatrix Wrapped Around the Adventitia of the Arteriovenous Fistula Outflow Vein Attenuates Venous Neointimal Hyperplasia. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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