Evidence map›Paper›PMID 27887864›Full record

ArticleCytotherapy2017

Optimization of cGMP purification and expansion of umbilical cord blood-derived T-regulatory cells in support of first-in-human clinical trials.

David H McKenna, Darin Sumstad, Diane M Kadidlo, Bjorn Batdorf, Colin J Lord, Sarah C Merkel, Christine M Koellner, Julie M Curtsinger, Carl H June, James L Riley and 6 more

Abstract read
In one paragraph

Article in Cytotherapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 44 citations in OpenAlex.

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  16. [Genetically modified regulatory T cells: therapeutic concepts and regulatory aspects].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2020
    Review
  17. Review
  18. Article
  19. Article
  20. Methods to manufacture regulatory T cells for cell therapy.Clinical and experimental immunology · 2019
    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

16 authors at 3 institutions in 1 country.

David H McKennaDepartment of Laboratory Medicine and Pathology, Division of Transfusion Medicine, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA. Electronic address: mcken020@umn.edu.
Darin SumstadDepartment of Laboratory Medicine and Pathology, Division of Transfusion Medicine, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Diane M KadidloDepartment of Laboratory Medicine and Pathology, Division of Transfusion Medicine, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Bjorn BatdorfDepartment of Laboratory Medicine and Pathology, Division of Transfusion Medicine, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Colin J LordDepartment of Pediatrics, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Sarah C MerkelDepartment of Pediatrics, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Christine M KoellnerDepartment of Pediatrics, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Julie M CurtsingerDepartment of Medicine, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Carl H JuneDepartment of Pathology and Laboratory Medicine, University of Pennsylvania Cancer Center, Philadelphia, Pennsylvania, USA; Abramson Family Cancer Center Research Institute, University of Pennsylvania Cancer Center, Philadelphia, Pennsylvania, USA.
James L RileyAbramson Family Cancer Center Research Institute, University of Pennsylvania Cancer Center, Philadelphia, Pennsylvania, USA; Department of Microbiology, University of Pennsylvania Cancer Center, Philadelphia, Pennsylvania, USA.
Bruce L LevineDepartment of Pathology and Laboratory Medicine, University of Pennsylvania Cancer Center, Philadelphia, Pennsylvania, USA; Abramson Family Cancer Center Research Institute, University of Pennsylvania Cancer Center, Philadelphia, Pennsylvania, USA.
Jeffrey S MillerDepartment of Medicine, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Claudio G BrunsteinDepartment of Medicine, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
John E WagnerDepartment of Pediatrics, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Bruce R BlazarDepartment of Pediatrics, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA.
Keli L HippenDepartment of Pediatrics, Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis/Saint Paul, Minnesota, USA. Electronic address: hippe002@umn.edu.
University of Minnesota · USUniversity of Pennsylvania · USUPMC Hillman Cancer Center · US

Funding

Women's CancerP30CA077598 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI Jeffrey S. Miller · 1998 to 2026
$100.4M
Trial Design and Biostatistical Support CoreP01CA065493 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI J SUNIL RAO · 1995 to 2026
$48.2M
Project 3: Humoral Targets and B Cell Biology in Chronic Graft-vs.-Host DiseaseP01CA142106 · NCI · DANA-FARBER CANCER INST · PI RITZ, JEROME · 2009 to 2019
$17.5M
Enhancing Treg Therapeutic Efficacy in GVHDR01HL118979 · NHLBI · UNIVERSITY OF MINNESOTA · PI BLAZAR, BRUCE R, HIPPEN, KELI L · 2014 to 2025
$6.7M
IN VIVO PREVENTION OF MURINE GVHDR01AI034495 · NIAID · UNIVERSITY OF MINNESOTA TWIN CITIES · PI BLAZAR, BRUCE R · 1993 to 2016
$6.2M
T-CELL TARGETING FOR GVHDR01HL056067 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI BLAZAR, BRUCE R · 1995 to 2022
$5.4M
In Vivo Prevention of Murine GVHDR37AI034495 · NIAID · UNIVERSITY OF MINNESOTA · PI Bruce R Blazar · 2017 to 2026
$5.4M
NCI NIH HHS P01 CA065493NCI NIH HHS P01 CA142106NCI NIH HHS P30 CA077598NHLBI NIH HHS HHSN268201000008CNHLBI NIH HHS R01 HL056067NHLBI NIH HHS R01 HL118979NIAID NIH HHS R01 AI034495NIAID NIH HHS R37 AI034495
6 · The paper itself

Abstract

BACKGROUND

aimsThymic-derived regulatory T cells (tTreg) are critical regulators of the immune system. Adoptive tTreg transfer is a curative therapy for murine models of autoimmunity, graft rejection, and graft-versus-host disease (GVHD). We previously completed a "first-in-human" clinical trial using in vitro expanded umbilical cord blood (UCB)-derived tTreg to prevent GVHD in patients undergoing UCB hematopoietic stem cell transplantation (HSCT). tTreg were safe and demonstrated clinical efficacy, but low yield prevented further dose escalation.

methodsTo optimize yield, we investigated the use of KT64/86 artificial antigen presenting cells (aAPCs) to expand tTreg and incorporated a single re-stimulation after day 12 in expansion culture.

resultsaAPCs increased UCB tTreg expansion greater than eightfold over CD3/28 stimulation. Re-stimulation with aAPCs increased UCB tTreg expansion an additional 20- to 30-fold. Re-stimulated human UCB tTreg ameliorated GVHD disease in a xenogeneic model. Following current Good Manufacturing Practice (cGMP) validation, a trial was conducted with tTreg. tTreg doses up to >30-fold higher compared with that obtained with anti-CD3/28 mAb coated-bead expansion and Foxp3 expression was stable during in vitro expansion and following transfer to patients. Increased expansion did not result in a senescent phenotype and GVHD was significantly reduced. DISCUSSION: Expansion culture with cGMP aAPCs and re-stimulation reproducibly generates sufficient numbers of UCB tTreg that exceeds the numbers of T effector cells in an UCB graft. The methodology supports future tTreg banking and is adaptable to tTreg expansion from HSC sources. Furthermore, because human leukocyte antigen matching is not required, allogeneic UCB tTreg may be a useful strategy for prevention of organ rejection and autoimmune disease.

Indexed as

Cell ProliferationT-Lymphocytes, RegulatoryAnimalsAntigen-Presenting CellsCalibrationCell Culture TechniquesCells, CulturedCell SeparationClinical Trials as TopicCord Blood Stem Cell TransplantationFemaleFetal BloodGraft vs Host DiseaseHematopoietic Stem Cell TransplantationHumansK562 CellscGMP productiongraft versus host diseaseregulatory T cell

Identifiers

PMID27887864
PMCPMC5237605
OpenAlexW2551558340

What OpenQuestion holds

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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.