Evidence map›Paper›PMID 18640494›Full record

ArticleExperimental hematology2008

Identification of parameters required for efficient lentiviral vector transduction and engraftment of human cord blood CD34(+) NOD/SCID-repopulating cells.

Ying Liu, Giao Hangoc, Timothy B Campbell, Michael Goodman, Wen Tao, Karen Pollok, Edward F Srour, Hal E Broxmeyer

Open access · bronzeAbstract read
In one paragraph

Article in Experimental hematology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Efficient lentiviral transduction method to gene modify cord blood CD8Molecular therapy. Methods & clinical development · 2021
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  11. Human TSC-associated renal angiomyolipoma cells are hypersensitive to ER stress.American journal of physiology. Renal physiology · 2012
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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 2 institutions in 1 country.

Ying LiuDepartment of Microbiology and Immunology and the Walther Oncology Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA. yliu2@iupui.edu
Giao Hangoc
Timothy B Campbell
Michael Goodman
Wen Tao
Karen Pollok
Edward F Srour
Hal E Broxmeyer
Indiana University – Purdue University Indianapolis · USIndiana University School of Medicine

Funding

VectorP01HL053586 · NHLBI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI CLAPP, DAVID W · 1995 to 2009
$16.0M
REGULATION OF HEMATOPOIETIC CELL PRODUCTIONT32DK007519 · NIDDK · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI KAPLAN, MARK H · 1986 to 2020
$7.1M
MECHANISMS OF SYNERGISTIC REGULATION OF STEM/PROGENITORSR01HL056416 · NHLBI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI BROXMEYER, HAL E. · 1996 to 2017
$6.0M
Cytokine Enhancement of Myeloid Progenitor Cell SurvivalR01HL067384 · NHLBI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI BROXMEYER, HAL E. · 2001 to 2014
$4.6M
NHLBI NIH HHS P01 HL053586NHLBI NIH HHS P01 HL 53586NHLBI NIH HHS R01 HL056416NHLBI NIH HHS R01 HL067384NHLBI NIH HHS R01 HL56416NHLBI NIH HHS R01 HL 67384NIDDK NIH HHS T32 DK007519NIDDK NIH HHS T32 DK07519
6 · The paper itself

Abstract

objectiveHuman cord blood (CB) is a potential source of hematopoietic stem cells (HSC) for gene therapy to treat patients with hematopoietic disorders. However, limited numbers of CB CD34(+) cells, low transduction efficiency with lentiviral vectors (LVs), and low engraftment efficiency of nonobese diabetic/severe combined immunodeficient (NOD/SCID) repopulating cells (SRC), a measure of HSC, are blocks to this procedure. To optimize culture and transduction conditions, we compared various lengths of time for prestimulation before transduction, transduction duration, and posttransduction cell culture. MATERIALS AND

methodsWe used a LV to transduce human CB CD34(+) cells followed by engraftment into NOD/SCID mice. We evaluated the effects of prestimulation and transduction time and optimized ex vivo cell culture duration before transplantation.

resultsWe were able to achieve up to 40% transduction efficiency and up to 50% engraftment efficiency of SRC in CB CD34(+) cells when CB CD34(+) cells were either not prestimulated or prestimulated in 1% fetal bovine serum medium for 1 hour, followed by 5 hours transduction and 3 days culture in a cocktail of growth factors after transduction. No apparent functional changes of CB CD34(+) cells were noted under these conditions.

conclusionThis gene-transduction/cell-expansion protocol is the first systematic study to optimize prestimulation time, transduction time, and, very importantly, ex vivo culture time after transduction, and may be of use for LV gene transduction in a gene therapy setting.

Indexed as

Transduction, GeneticAnimalsAntigens, CD34Colony-Forming Units AssayFetal BloodGenetic VectorsGraft SurvivalGreen Fluorescent ProteinsHematopoietic Stem CellsHematopoietic Stem Cell TransplantationHumansLentivirusMiceMice, Inbred NODTime FactorsTransplantation, HeterologousAntigens, CD34enhanced green fluorescent proteinGreen Fluorescent Proteins

Identifiers

PMID18640494
PMCPMC2586287
OpenAlexW1976570074

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.