Abstract:
PURPOSE:Many viruses have evolved mechanisms to evade detection by the host immune system. The herpes simplex gene ICP47 encodes a protein that binds to the host antigen-processing transporter, inhibiting the formation of major histocompatibility complex class I (MHC-I) antigens in infected cells. MHC-I antigen expression is also important in acute allograft rejection. This study was designed to quantitate the effect of adenoviral-mediated gene transfer of ICP47 on MHC-I cell surface expression of human vascular cells. We hypothesized that the transduction of vascular cells with a replication-incompetent adenoviral vector that was expressing ICP47 (AdICP47) would inhibit constitutive and inducible MHC-I expression and thereby reduce the rate of cytolysis of ICP47-transduced vascular cells by sensitized cytotoxic T lymphocytes (CTL). METHODS:A replication-incompetent adenoviral vector, AdICP47, was created to express ICP47 driven by the cytomegalovirus immediate early promoter. Cultured human vascular endothelial and smooth muscle cells and human dermal fibroblasts were transduced with either AdICP47 or the control empty vector AddlE1. Cell surface constitutive and gamma-interferon-induced MHC-I expression were quantitated by flow cytometry. A standard 4-hour chromium release cytotoxicity assay was used to determine the percent cytolysis of transduced and nontransduced endothelial cells by sensitized CTL. Finally, to quantitate the specificity of the effect of ICP47 on MHC-I expression, adhesion molecule expression was quantitated in both transduced and nontransduced cells. RESULTS:Constitutive MHC-I expression in AdICP47-transduced endothelial cells was inhibited by a mean of 84% +/- 5% (SEM) in five experiments. After 48 hours of exposure to gamma-interferon, AdICP47-transduced cells exhibited a mean of 66% +/- 8% lower MHC-I expression than nontransduced cells. Similar inhibition in MHC-I expression was achieved in AdICP47-transduced vascular smooth muscle cells and dermal fibroblasts. Percent cytolysis of AdICP47-transduced endothelial cells by CTL was reduced by 72%. Finally, the specificity of the effect of transduction of ICP47 on vascular cell MHC-I expression was confirmed by a lack of significant change in either constitutive or tumor necrosis factor-induced vascular cell adhesion molecule/intercellular adhesion molecule expression. CONCLUSION:Transduction of vascular cells with AdICP47 strongly inhibits both constitutive and inducible MHC-I expression in human vascular cells. AdICP47-transduced cells exhibited a substantial reduction in cytolysis by CTL. Thus AdICP47 transduction holds promise as a technique to characterize the role of MHC-I expression in acute vascular allograft rejection in vivo and as a potential therapeutic intervention.
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Furukawa L,Brevetti LS,Brady SE,Johnson D,Ma M,Welling TH,Messina LMsubject
Has Abstractpub_date
2000-03-01 00:00:00pages
558-66issue
3eissn
0741-5214issn
1097-6809pii
S0741521400419312journal_volume
31pub_type
杂志文章abstract:PURPOSE:The antiproliferative and antisecretory effects of somatostatin have many potential uses in the clinical setting. Retroviral gene transfer of somatostatin to endothelium is a potential means of local delivery of this peptide to specific vascular beds. This investigation was designed to determine whether transdu...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(98)70278-2
更新日期:1998-05-01 00:00:00
abstract:PURPOSE:Flush saphenofemoral ligation, with multiple cosmetic stab phlebectomy, successfully treats saphenofemoral reflux and superficial varicosities. The long-term effect on the residual greater saphenous vein (GSV) requires evaluation. METHODS:Noninvasive triplex ultrasound assessment of the residual GSV for potent...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(95)70044-7
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:Simulation has an increasingly prominent role in modern vascular surgery training. However, it is important to understand how simulation is most effectively delivered to best use the time and resources available. The aim of this narrative review is therefore to critically appraise open technical skill acquis...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2020.09.042
更新日期:2020-11-25 00:00:00
abstract::An institutional experience with 100 consecutive blunt popliteal artery injuries over a 20-year period was reviewed. The overall amputation rate was 15%; however, during the past 7 years this has declined from 23% to 6%. Minimizing delay in the revascularization of ischemic limbs, routine systemic heparinization, prim...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1988.avs0070736
更新日期:1988-05-01 00:00:00
abstract:OBJECTIVE:The Society for Vascular Surgery Wound, Ischemia, and foot Infection (WIfI) threatened limb classification has been shown to correlate well with risk of major amputation and time to wound healing in heterogeneous diabetic and nondiabetic populations. Major amputation continues to plague the most severe stage ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2016.12.123
更新日期:2017-06-01 00:00:00
abstract:PURPOSE:Human vascular prostheses develop a pseudointima that after time is devoid of a complete endothelial lining. The composition of this pseudointima consists of both cellular and noncellular components such as coagulation proteins and extracellular matrix proteins. Of these extracellular molecules, type V collagen...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1993.40730
更新日期:1993-04-01 00:00:00
abstract:PURPOSE:A recent overview indicated that although routine patching is safer than routine primary closure after carotid endarterectomy (CEA), there is no systematic evidence that patch type influences outcome. However, most surgeons still believe that prosthetic patches are probably more thrombogenic than vein patches. ...
journal_title:Journal of vascular surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1067/mva.2001.115005
更新日期:2001-05-01 00:00:00
abstract:PURPOSE:Aortoiliac occlusive disease may preclude retrograde thoracic endovascular aortic repair. This study evaluated the physiologic and anatomic feasibility of introducing an aortic endograft in an antegrade manner into the descending thoracic aorta of a pig through the left ventricular apex. METHODS:Twelve adult p...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2008.06.043
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:The mechanisms of neointima formation after synthetic vascular grafting are not clear. The aim of this study was to investigate the intima and perigraft adventitia remodeling process in terms of cell apoptosis versus proliferation after synthetic patch implantation. METHODS:Female Merino sheep were randomiz...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2002.123749
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND:Treatment of chronic venous insufficiency (CVI) has largely focused on reflux. Minimally-invasive techniques to address superficial and perforator reflux have evolved, but correction of deep reflux continues to be challenging. The advent of intravascular ultrasound (IVUS) scan and minimally invasive venous s...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2009.08.032
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:The study was conducted to demonstrate improved survival (30-day mortality) after the introduction of an emergency endovascular therapy protocol for ruptured abdominal aortic aneurysms (rAAA). Numerous authors have successfully demonstrated reduced mortality in patients with rAAA using endovascular technique...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2006.11.047
更新日期:2007-03-01 00:00:00
abstract:INTRODUCTION:Successful endovascular exclusion of abdominal aortic aneurysms is largely dependent on adequate apposition of the stent graft to the aortic wall. Proximal endoleaks at the time of stent graft placement are uncommon but are more prevalent in patients with challenging neck anatomy. If these initial leaks do...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2010.11.095
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:Constrictive extracellular matrix (ECM) remodeling contributes significantly to restenosis after arterial reconstruction, but its molecular regulation is poorly defined. Hyaluronan (HA) accumulates within ECM at sites of injury where it is thought to facilitate smooth muscle cell (SMC) trafficking and collage...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.03.047
更新日期:2014-03-01 00:00:00
abstract:PURPOSE:Artery-wall hypoxia has been proposed to contribute to many kinds of artery-wall pathologic conditions, including atherosclerosis and intimal hyperplasia. Intimal hyperplasia is common at sites of arterial injury, including an anastomosis. The purpose of this study was to determine the effect of a prosthetic va...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2000.104590
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND:Rupture of infected anastomotic femoral artery pseudoaneurysms (AFAPs) represents a limb and life-threatening condition requiring emergency intervention. This study aimed to evaluate the feasibility, safety, and efficacy of a hybrid repair for ruptured infected AFAPs consisted of percutaneous stent-graft dep...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2008.10.063
更新日期:2009-04-01 00:00:00
abstract::The role of balloon catheter femoropopliteal percutaneous transluminal angioplasty (FP PTA) continues to be controversial 14 years after its initial description. In high-risk patients with limb-threatening ischemia, the role of FP PTA is unknown. We reviewed the cases of 27 patients in whom high operative risk and adv...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1988-09-01 00:00:00
abstract::In 2008, the top priority in our division's 5-year strategic plan was "to become an internationally recognized center of excellence for the endovascular treatment of complex aortic pathology extending from the aortic valve to the external iliac artery." Five components were identified as "most critical" to achieve thi...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.08.121
更新日期:2015-03-01 00:00:00
abstract:PURPOSE:This study was undertaken to examine the role of superficial and deep venous reflux, as defined by duplex-derived valve closure times (VCTs), in the pathogenesis of chronic venous insufficiency. METHODS:Between January 1992 and November 1995, 320 patients and 500 legs were evaluated with clinical examinations ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(96)70009-5
更新日期:1996-11-01 00:00:00
abstract:OBJECTIVE:Volume-outcome relationships for open abdominal aortic aneurysm (AAA) repair have received less attention in publicly funded health systems. Furthermore, the roles of surgeon seniority (years of experience) and composite volume (encompassing all major arterial cases) on outcomes after open AAA repair are less...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2017.10.050
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to define a normal range of distal graft velocity (DGV) and peak systolic velocity (PSV) on the basis of outflow level and maximum graft diameter for infrainguinal reversed vein bypass grafting (RVG). METHODS:This study was designed as a prospective study of consecutive patien...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(99)70172-2
更新日期:1999-07-01 00:00:00
abstract:BACKGROUND:Vascular surgery-related groin complications can lead to catastrophic outcomes and pose a significant healthcare burden. We have taken steps to reduce potential complications at the time of initial surgery by performing prophylactic muscle flaps. The purpose of this study is to evaluate the efficacy and bene...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2011.10.110
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:Trends in the management of renovascular hypertension were evaluated by using a representative national database to determine whether a shift in treatment technology and outcomes has occurred. METHODS:Clinical information regarding the treatment of renovascular hypertension in 5433 patients from 1988 to 200...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2004.07.029
更新日期:2004-10-01 00:00:00
abstract::The mortality rate for elective abdominal aortic operations remains between 3% and 8% despite careful hemodynamic monitoring, and half of these deaths are cardiac in origin. An extensive evaluation of ventricular function was performed during abdominal aortic operation to detect subtle abnormalities in systolic or dia...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1986-05-01 00:00:00
abstract:OBJECTIVE:Limb loss after lower extremity surgical revascularization occurs relatively frequently in patients receiving dialysis. The goal of the present study was to determine whether patients with milder degrees of renal insufficiency are also at risk for this complication. MATERIAL AND METHODS:This cohort study was...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2003.11.038
更新日期:2004-04-01 00:00:00
abstract:PURPOSE:The purpose of this study was to compare the cardiopulmonary morbidity and mortality rates after endovascular abdominal aortic aneurysm (EAAA) repair with local anesthesia (LA) with intravenous sedation versus general anesthesia (GA). METHODS:Data from patients who underwent elective infrarenal EAAA repair bet...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2002.128314
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:To examine the outcome of a comprehensive follow-up program for autogenous arteriovenous hemodialysis access (AVF) when performed by the hemodialysis access surgeon. METHODS:Patients with first time AVFs between 2000 and 2005 underwent history and physical examination between the third and sixth postoperativ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.01.013
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVE:A mycotic aneurysm of the aorta and adjacent arteries is a dreadful condition, threatening life, organs, and limbs. With regard to the aortic segment involved, repair by either in situ replacement or extra-anatomic reconstruction can be quite challenging. Even when surgery has been successful, the prognosis i...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2001.110356
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:The selection of surgeons to participate in a prospective randomized trial comparing the efficacy of a surgical method with medical management is critically important because it will have a direct impact on the outcome of the study and the future use of the operation. We report the success of the method used fo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(96)70277-x
更新日期:1996-02-01 00:00:00
abstract:OBJECTIVES:To determine (a) whether patients with peripheral artery disease (PAD) who walked at least 7,000 and 10,000 steps/day had better ambulatory function and health-related quality of life (HRQoL) than patients who walked less than 7,000 steps/day, and (b) whether differences in ambulatory function and HRQoL in p...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2020.10.073
更新日期:2020-11-27 00:00:00
abstract:BACKGROUND:Renovascular hypertension (RVH) associated with renal artery and abdominal aortic narrowings is the third most common cause of pediatric hypertension. Untreated children may experience major cardiopulmonary complications, stroke, renal failure, and death. The impetus of this study was to describe the increas...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2020.02.045
更新日期:2020-12-01 00:00:00