Skip to main content
  • American Heart Association
  • Science Volunteer
  • Warning Signs
  • Advanced Search
  • Donate

  • Home
  • About this Journal
    • General Statistics
    • Editorial Board
    • Editors
    • Information for Advertisers
    • Author Reprints
    • Commercial Reprints
    • Customer Service and Ordering Information
  • All Issues
  • Subjects
    • All Subjects
    • Arrhythmia and Electrophysiology
    • Basic, Translational, and Clinical Research
    • Critical Care and Resuscitation
    • Epidemiology, Lifestyle, and Prevention
    • Genetics
    • Heart Failure and Cardiac Disease
    • Hypertension
    • Imaging and Diagnostic Testing
    • Intervention, Surgery, Transplantation
    • Quality and Outcomes
    • Stroke
    • Vascular Disease
  • Browse Features
    • AHA Guidelines and Statements
    • Acknowledgment of Reviewers
    • Clinical Implications
    • Clinical-Pathological Conferences
    • Controversies in Hypertension
    • Editors' Picks
    • Guidelines Debate
    • Meeting Abstracts
    • Recent Advances in Hypertension
    • SPRINT Trial: the Conversation Continues
  • Resources
    • Instructions to Reviewers
    • Instructions for Authors
    • →Article Types
    • → Submission Guidelines
      • Research Guidelines
        • Minimum Information About Microarray Data Experiments (MIAME)
      • Abstract
      • Acknowledgments
      • Clinical Implications (Only by invitation)
      • Conflict(s) of Interest/Disclosure(s) Statement
      • Figure Legends
      • Figures
      • Novelty and Significance: 1) What Is New, 2) What Is Relevant?
      • References
      • Sources of Funding
      • Tables
      • Text
      • Title Page
      • Online/Data Supplement
    • →Tips for Easier Manuscript Submission
    • → General Instructions for Revised Manuscripts
      • Change of Authorship Form
    • → Costs to Authors
    • → Open Access, Repositories, & Author Rights Q&A
    • Permissions to Reprint Figures and Tables
    • Journal Policies
    • Scientific Councils
    • AHA Journals RSS Feeds
    • International Users
    • AHA Newsroom
  • AHA Journals
    • AHA Journals Home
    • Arteriosclerosis, Thrombosis, and Vascular Biology (ATVB)
    • Circulation
    • → Circ: Arrhythmia and Electrophysiology
    • → Circ: Genomic and Precision Medicine
    • → Circ: Cardiovascular Imaging
    • → Circ: Cardiovascular Interventions
    • → Circ: Cardiovascular Quality & Outcomes
    • → Circ: Heart Failure
    • Circulation Research
    • Hypertension
    • Stroke
    • Journal of the American Heart Association
  • Facebook
  • Twitter

  • My alerts
  • Sign In
  • Join

  • Advanced search

Header Publisher Menu

  • American Heart Association
  • Science Volunteer
  • Warning Signs
  • Advanced Search
  • Donate

Hypertension

  • My alerts
  • Sign In
  • Join

  • Facebook
  • Twitter
  • Home
  • About this Journal
    • General Statistics
    • Editorial Board
    • Editors
    • Information for Advertisers
    • Author Reprints
    • Commercial Reprints
    • Customer Service and Ordering Information
  • All Issues
  • Subjects
    • All Subjects
    • Arrhythmia and Electrophysiology
    • Basic, Translational, and Clinical Research
    • Critical Care and Resuscitation
    • Epidemiology, Lifestyle, and Prevention
    • Genetics
    • Heart Failure and Cardiac Disease
    • Hypertension
    • Imaging and Diagnostic Testing
    • Intervention, Surgery, Transplantation
    • Quality and Outcomes
    • Stroke
    • Vascular Disease
  • Browse Features
    • AHA Guidelines and Statements
    • Acknowledgment of Reviewers
    • Clinical Implications
    • Clinical-Pathological Conferences
    • Controversies in Hypertension
    • Editors' Picks
    • Guidelines Debate
    • Meeting Abstracts
    • Recent Advances in Hypertension
    • SPRINT Trial: the Conversation Continues
  • Resources
    • Instructions to Reviewers
    • Instructions for Authors
    • →Article Types
    • → Submission Guidelines
    • →Tips for Easier Manuscript Submission
    • → General Instructions for Revised Manuscripts
    • → Costs to Authors
    • → Open Access, Repositories, & Author Rights Q&A
    • Permissions to Reprint Figures and Tables
    • Journal Policies
    • Scientific Councils
    • AHA Journals RSS Feeds
    • International Users
    • AHA Newsroom
  • AHA Journals
    • AHA Journals Home
    • Arteriosclerosis, Thrombosis, and Vascular Biology (ATVB)
    • Circulation
    • → Circ: Arrhythmia and Electrophysiology
    • → Circ: Genomic and Precision Medicine
    • → Circ: Cardiovascular Imaging
    • → Circ: Cardiovascular Interventions
    • → Circ: Cardiovascular Quality & Outcomes
    • → Circ: Heart Failure
    • Circulation Research
    • Hypertension
    • Stroke
    • Journal of the American Heart Association
Poster Abstract PresentationsSession Title: Poster Session 1- Trainee Onsite Poster Competition and Reception

Abstract P089: Inhibition of AT1-AAs by Direct Binding Reduces Blood Pressure and Natural Killer Cell Activation in Response to Placental Ischemia of Pregnancy; Emphasizing the Importance of Novel Drug Development in the Treatment of Preeclampsia

Nathan Campbell, Mark W Cunningham, Denise C Cornelius, Babbette LaMarca
Hypertension. 2015;66:AP089
Nathan Campbell
Univ of Mississippi Med Cntr, Jackson, MS
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Mark W Cunningham
Univ of Mississippi Med Cntr, Jackson, MS
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Denise C Cornelius
Univ of Mississippi Med Cntr, Jackson, MS
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Babbette LaMarca
Univ of Mississippi Med Cntr, Jackson, MS
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • Article
  • Info & Metrics

Jump to

  • Article
  • Info & Metrics
  • eLetters
Loading

Abstract

Preeclampsia (PE), hypertension with proteinuria during pregnancy, is associated with activating antibodies to the angiotensin II receptor (AT1-AA) and activation of cytolytic natural killer (NK) cells. The objective of our study was to determine if AT1-AA inhibition inhibits cytolytic NK cell activation in the reduced uterine perfusion pressure (RUPP) rat model of PE. We utilized a novel approach of specific epitope binding to inhibit AT1-AAs: AT1-AA inhibitory peptide (2ug/ml saline) was infused via miniosmotic pumps into RUPP rats beginning on day 14 of gestation. On day 19 of gestation, blood pressure (MAP) was measured and flow cytometry was performed to measure total and cytolytic NK cells in renal and placental tissues from all groups of rats.

MAP significantly increased from 87.1±6.2 in NP (n=5) to 125±2.3 in RUPP (n=6). Inhibition of AT1-AA by direct binding attenuated the hypertensive response to 74.9±19.02 mmHg in RUPP + AT1-AA inhibitor (n=3). Total renal NK cells measured at 10.21±3.69% in NP, 24.19±6.63% in RUPP, and 14.25±7.52% in RUPP + AT1-AA inhibitor. Total placental NK cells were 6.87±2.84% in NP (n=6), 27.62±10.97% in RUPP (N=6), and 6.35±3.90% in RUPP + AT1-AA inhibitor (N=5) rats. Importantly, activated cytolytic placental NK cells were significantly increased in NP (0.44±.24%) compared to RUPP (11.87±2.06%), and was blunted after epitope binding of AT1-AA in RUPP + AT1-AA inhibitor (2.33±1.02%, p<.0001 vs RUPP).

These studies indicate that AT1-AA inhibition improves maternal blood pressure and attenuates cytolytic activation of NK cells in response to placental ischemia, thereby emphasizing the importance of drug discovery for AT1-AA inhibition to improve pregnancy outcomes in preeclamptic patients.

  • Hypertension
  • Pregnancy
  • Immunologic factors
  • Author Disclosures: N. Campbell: None. M.W. Cunningham: None. D.C. Cornelius: B. Research Grant (includes principal investigator, collaborator, or consultant and pending grants as well as grants already received); Significant; NIH Postdoctoral NRSA. B. LaMarca: B. Research Grant (includes principal investigator, collaborator, or consultant and pending grants as well as grants already received); Significant; NIH, Ferring Pharmaceuticals, Inc..

  • © 2015 by American Heart Association, Inc.
Back to top
Previous Article

This Issue

Hypertension
September 2015, Volume 66, Issue Suppl 1
  • Table of Contents
Previous Article

Jump to

  • Article
  • Info & Metrics

Article Tools

  • Citation Tools
    Abstract P089: Inhibition of AT1-AAs by Direct Binding Reduces Blood Pressure and Natural Killer Cell Activation in Response to Placental Ischemia of Pregnancy; Emphasizing the Importance of Novel Drug Development in the Treatment of Preeclampsia
    Nathan Campbell, Mark W Cunningham, Denise C Cornelius and Babbette LaMarca
    Hypertension. 2015;66:AP089, originally published November 3, 2015

    Citation Manager Formats

    • BibTeX
    • Bookends
    • EasyBib
    • EndNote (tagged)
    • EndNote 8 (xml)
    • Medlars
    • Mendeley
    • Papers
    • RefWorks Tagged
    • Ref Manager
    • RIS
    • Zotero
  • Article Alerts
    Log in to Email Alerts with your email address.
  • Save to my folders

Share this Article

  • Email

    Thank you for your interest in spreading the word on Hypertension.

    NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

    Enter multiple addresses on separate lines or separate them with commas.
    Abstract P089: Inhibition of AT1-AAs by Direct Binding Reduces Blood Pressure and Natural Killer Cell Activation in Response to Placental Ischemia of Pregnancy; Emphasizing the Importance of Novel Drug Development in the Treatment of Preeclampsia
    (Your Name) has sent you a message from Hypertension
    (Your Name) thought you would like to see the Hypertension web site.
  • Share on Social Media
    Abstract P089: Inhibition of AT1-AAs by Direct Binding Reduces Blood Pressure and Natural Killer Cell Activation in Response to Placental Ischemia of Pregnancy; Emphasizing the Importance of Novel Drug Development in the Treatment of Preeclampsia
    Nathan Campbell, Mark W Cunningham, Denise C Cornelius and Babbette LaMarca
    Hypertension. 2015;66:AP089, originally published November 3, 2015
    del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo

Related Articles

Cited By...

Hypertension

  • About Hypertension
  • Instructions for Authors
  • AHA CME
  • Guidelines and Statements
  • Permissions
  • Journal Policies
  • Email Alerts
  • Open Access Information
  • AHA Journals RSS
  • AHA Newsroom

Editorial Office Address:
7272 Greenville Ave.
Dallas, TX 75231
email: hypertension@heart.org

Information for:
  • Advertisers
  • Subscribers
  • Subscriber Help
  • Institutions / Librarians
  • Institutional Subscriptions FAQ
  • International Users
American Heart Association Learn and Live
National Center
7272 Greenville Ave.
Dallas, TX 75231

Customer Service

  • 1-800-AHA-USA-1
  • 1-800-242-8721
  • Local Info
  • Contact Us

About Us

Our mission is to build healthier lives, free of cardiovascular diseases and stroke. That single purpose drives all we do. The need for our work is beyond question. Find Out More about the American Heart Association

  • Careers
  • SHOP
  • Latest Heart and Stroke News
  • AHA/ASA Media Newsroom

Our Sites

  • American Heart Association
  • American Stroke Association
  • For Professionals
  • More Sites

Take Action

  • Advocate
  • Donate
  • Planned Giving
  • Volunteer

Online Communities

  • AFib Support
  • Garden Community
  • Patient Support Network
  • Professional Online Network

Follow Us:

  • Follow Circulation on Twitter
  • Visit Circulation on Facebook
  • Follow Circulation on Google Plus
  • Follow Circulation on Instagram
  • Follow Circulation on Pinterest
  • Follow Circulation on YouTube
  • Rss Feeds
  • Privacy Policy
  • Copyright
  • Ethics Policy
  • Conflict of Interest Policy
  • Linking Policy
  • Diversity
  • Careers

©2018 American Heart Association, Inc. All rights reserved. Unauthorized use prohibited. The American Heart Association is a qualified 501(c)(3) tax-exempt organization.
*Red Dress™ DHHS, Go Red™ AHA; National Wear Red Day ® is a registered trademark.

  • PUTTING PATIENTS FIRST National Health Council Standards of Excellence Certification Program
  • BBB Accredited Charity
  • Comodo Secured