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The Role of Lipids in Immune Cell Function in SLE Patients

2020年4月22日 更新者:University College, London

Understanding the Role Played by Serum and Membrane Lipids in Immune Cell Function in Patients With Systemic Lupus Erythematosus (SLE) and Healthy Donors

The overall aim of this project is to investigate the different types of immune cells found in the blood of patients with Systemic Lupus Erythematosus (SLE) and healthy donors. We know that the amount of fat on the surface of immune cells is an important factor controlling their behaviour. Immune cells from SLE patients are defective and this is associated with changes in the levels of fat on these cells. This project will investigate the level of fat in the blood and on immune cells from patients with SLE and age matched healthy controls, and measure how changes in the amount of fat can affect the way immune cells behave.

調査の概要

詳細な説明

Accelerated atherosclerosis is a serious complication of autoimmunity including patients with both adult and juvenile onset systemic lupus erythematosus (SLE). This suggests that defects in fat levels could contribute to disease pathogenesis. The immune system in patients with SLE does not work normally. In adult patients with SLE we know that many of the immune cells involved in protecting the body from infections or cancer are over-active and actually cause disease. In young people the immune system is still developing and very little is known about what goes wrong in patients that develop juvenile-onset SLE, whether this is the same as adult disease and whether the same treatments are relevant for this group of patients. This project aims to find out whether immune cells from SLE patients with adult-onset disease have the same defects as adult patients with juvenile-onset SLE. We know that an important factor that controls immune cell behaviour is the amount of fat that they have on their surface. We also know that a change in fat on immune cells from adult patients with SLE makes them defective. This project will investigate the level of fat in the blood and in immune cells from adult patients with juvenile-onset SLE and age matched healthy controls, and measure how changes in the amount of fat can affect the way immune cells behave. We will investigate how drugs that control fat levels can help to normalize the behaviour of immune cells from SLE patients.

研究の種類

観察的

入学 (予想される)

300

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

      • London、イギリス、NW1 2BU
        • 募集
        • University College London Hospitals NHS Foundation Trust
        • コンタクト:
        • コンタクト:
        • 主任研究者:
          • David Isenberg, Prof

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年~80年 (大人、高齢者)

健康ボランティアの受け入れ

なし

受講資格のある性別

全て

サンプリング方法

非確率サンプル

調査対象母集団

Patients will be approached by the consultant rheumatologist when the patient is attending their normal outpatient clinic appointment.

Healthy donors will be approached in a similar way using information flyers, invitation letters and participant information sheets by a member of the research team.

Healthy volunteers from UCL staff will be made aware of the study and also asked to participate.

説明

Inclusion Criteria:

  • Diagnosis of SLE according to American College of Rheumatology revised criteria
  • Having given written informed consent prior to undertaking any study-related procedures.
  • Male and female patients between the ages of 18 and 80 years.

Patients who have met all the above inclusion criteria listed and healthy donors will be screened for the following exclusion criteria:

Exclusion Criteria:

  • Under any administrative or legal supervision.
  • Conditions/situations such as:
  • A concomitant autoimmune disease
  • Impossibility to meet specific protocol requirements (e.g. blood sampling).
  • Patient is the Investigator or any sub-investigator, research assistant, pharmacist, study coordinator, other staff or relative thereof directly involved in the conduct of the protocol.
  • Uncooperative or any condition that could make the patient potentially non-compliant to the study procedures.
  • Pregnant or breast-feeding women, currently or in the last three months prior to inclusion.
  • Patients who have been vaccinated in the last three months prior to inclusion.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

コホートと介入

グループ/コホート
介入・治療
Juvenile onset Systemic Lupus Erythematosus (SLE) patients
All patients who meet the American College of Rheumatology revised criteria for SLE who were diagnosed with SLE between the ages of 11 and 21.
  • Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
  • Food Frequency Questionnaires (FFQs) and/or diet recall questionnaires to assess dietary intake.
  • Cardiovascular Ultrasound Scans (USS) to measure how well blood is carried around the body.
他の名前:
  • Food Frequency Questionnaires (FFQs) and/or 24 hour diet recall questionnaires
  • Ultrasound Scan (USS)
  • GTN (glyceryl trinitrate) administration
Adult onset Systemic Lupus Erythematosus (SLE) patients
All patients who meet the American College of Rheumatology revised criteria for SLE who were diagnosed with SLE between the ages of 24 and 80
  • Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
  • Food Frequency Questionnaires (FFQs) and/or diet recall questionnaires to assess dietary intake.
  • Cardiovascular Ultrasound Scans (USS) to measure how well blood is carried around the body.
他の名前:
  • Food Frequency Questionnaires (FFQs) and/or 24 hour diet recall questionnaires
  • Ultrasound Scan (USS)
  • GTN (glyceryl trinitrate) administration
Matching healthy volunteers
Healthy volunteers, matched by age and gender, will be used as a control group
  • Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
  • Food Frequency Questionnaires (FFQs) and/or diet recall questionnaires to assess dietary intake.
  • Cardiovascular Ultrasound Scans (USS) to measure how well blood is carried around the body.
他の名前:
  • Food Frequency Questionnaires (FFQs) and/or 24 hour diet recall questionnaires
  • Ultrasound Scan (USS)
  • GTN (glyceryl trinitrate) administration

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Collection of blood samples
時間枠:4 hours from point of sample collection
Blood sampling to measure immune cell phenotypes and examine DNA/RNA and identify serum biomarkers.
4 hours from point of sample collection
Completion of FFQ's and/or diet recall questionnaires
時間枠:Same day as recruited to study.
FFQ's and/or diet recall questionnaires to assess dietary intake
Same day as recruited to study.
Cardiovascular Ultrasound scans (USS)
時間枠:Within 2 months from recruitment.
USS of Intima Media Thickness (IMT), Flow Mediated Dilatation (FMD), Pulse Wave Velocity (PWV) and Laser Doppler Flowmetry measurement. As part of the procedure, sub lingual administration of GTN spray will be administered to measure FMD.
Within 2 months from recruitment.

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • 主任研究者:David Isenberg, Prof、UCL & University College London Hospitals NHS Foundation Trust

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2016年2月15日

一次修了 (予想される)

2020年8月31日

研究の完了 (予想される)

2020年8月31日

試験登録日

最初に提出

2020年4月22日

QC基準を満たした最初の提出物

2020年4月22日

最初の投稿 (実際)

2020年4月24日

学習記録の更新

投稿された最後の更新 (実際)

2020年4月24日

QC基準を満たした最後の更新が送信されました

2020年4月22日

最終確認日

2020年4月1日

詳しくは

本研究に関する用語

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

未定

IPD プランの説明

All participants are required to indicate in written consent if they agree to the use of any left over samples and associated data for future research use.

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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