Evidence map›Paper›PMID 32678137›Full record

ArticleScientific reports2020

Effect of intravenous immunoglobulin (IVIg) on primate complement-dependent cytotoxicity of genetically engineered pig cells: relevance to clinical xenotransplantation.

Takayuki Yamamoto, Yehua Cui, Diyan Patel, Abhijit Jagdale, Hayato Iwase, David Ayares, David K C Cooper, Hidetaka Hara

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Xenotransplantation: Promises and Perils.Annual review of medicine · 2026
    Review
  2. Article
  3. Differences between xenotransplantation and allogeneic kidney transplantation: the current situation and future challenges in Japan.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2025
    Review
  4. Review
  5. Clinical Pig Heart Xenotransplantation-Where Do We Go From Here?Transplant international : official journal of the European Society for Organ Transplantation · 2024
    Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Xenotransplantation: A New Era.Frontiers in immunology · 2022
    Review
  13. Article
  14. Article
  15. Article
  16. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 2 countries.

Takayuki YamamotoXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA. takayukiyamamoto@uabmc.edu.
Yehua CuiXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA.
Diyan PatelXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA.
Abhijit JagdaleXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA.
Hayato IwaseXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA.
David AyaresRevivicor, Blacksburg, VA, USA.
David K C CooperXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA.
Hidetaka HaraXenotransplantation Program, Department of Surgery, University of Alabama at Birmingham (UAB), LHRB752, 701 19th Street South, Birmingham, AL, 35294, USA. hhara@uabmc.edu.
University of Alabama at Birmingham · US

Funding

Prolonging life-supported pig kidney and heart graft survival in baboons by suppressing inflammationU19AI090959 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI COOPER, DAVID KC · 2010 to 2024
$26.3M
NIAID NIH HHS AI090959NIAID NIH HHS U19 AI090959
6 · The paper itself

Abstract

Triple-knockout (TKO) pigs may be ideal sources of organs for clinical xenotransplantation because many humans have no preformed antibody to TKO pig cells. Intravenous immunoglobulin (IVIg) is widely used for severe infection or the treatment/prevention of antibody-mediated rejection in allotransplantation. Anti-pig antibodies in IVIg could be harmful in clinical xenotransplantation. It is unknown whether anti-TKO pig antibodies are present in IVIg. The main aim of this study was to investigate in vitro whether IVIg contains anti-TKO pig antibodies with cytotoxic effect to pig cells. Undiluted pooled human serum (HS) and five different commercial preparations of IVIg were tested for IgM and IgG binding to red blood cells (RBCs) from wild-type (WT), α1,3-galactosyltransferase gene-knockout (GTKO), and TKO pigs by flow cytometry. Complement-dependent lysis of IVIg against these pig pRBCs was measured by hemolytic assay. Pooled HS and 4 of 5 IVIg commercial preparations contained anti-pig IgG that bound to WT and GTKO pRBCs, but not to TKO pRBCs. One preparation of IVIg contained antibodies that bound to TKO pRBCs, but there was no cytotoxicity of IVIg to TKO pRBCs. The results suggest that IVIg administration to human recipients of TKO pig grafts would be safe. However, the specific preparation of IVIg would need to be screened before its administration.

Indexed as

AnimalsAnimals, Genetically ModifiedAntibody-Dependent Cell CytotoxicityBiomarkersComplement System ProteinsCytotoxicity, ImmunologicErythrocytesFlow CytometryHumansImmunoglobulin GImmunoglobulin MImmunoglobulins, IntravenousPapioPrimatesSpecies SpecificitySwineBiomarkersComplement System ProteinsImmunoglobulin GImmunoglobulin MImmunoglobulins, Intravenous

Identifiers

PMID32678137
PMCPMC7367287
OpenAlexW3042289350

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.