Evidence map›Paper›PMID 26432560›Full record

ArticleCytotherapy2015

A novel method to expand large numbers of CD56(+) natural killer cells from a minute fraction of selectively accessed cryopreserved cord blood for immunotherapy after transplantation.

Sumithira Vasu, Maria Berg, Jan Davidson-Moncada, Xin Tian, Herb Cullis, Richard W Childs

Open access · greenAbstract read
In one paragraph

Article in Cytotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

25 citing papers in PubMed, 38 citations in OpenAlex.

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  5. Exosomes derived from umbilical cord blood NK cells inhibit the progression of pancreatic cancer by targeting ROS-mediated mitochondrial dysfunction.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2025
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  19. Clinical Advancement and Challenges ofClinical hematology international · 2020
    Review
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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

6 authors at 4 institutions in 1 country.

Sumithira VasuDivision of Hematology, The Ohio State University, Columbus, Ohio, USA.
Maria BergHematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Jan Davidson-MoncadaMedical Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA.
Xin TianOffice of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA.
Herb CullisAmerican Flouroseal Corporation, Gaithersburg, Maryland, USA.
Richard W ChildsHematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA. Electronic address: childsr@nhlbi.nih.gov.
National Heart Lung and Blood Institute · USNational Cancer Institute · USNational Institutes of Health · USThe Ohio State University · US

Funding

Allogeneic Immunotherapy for cancer and nonmalignant hematological disordersZIAHL002345 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI CHILDS, RICHARD · 2009 to 2025
$53.3M
Intramural NIH HHS Z99 HL999999
6 · The paper itself

Abstract

BACKGROUND

aimsUmbilical cord blood transplantation (UCBT) is increasingly used to treat acute leukemias. UCB units are thawed and infused in their entirety at transplant, precluding later use as immunotherapy to prevent or treat leukemia relapse.

methodsWe developed a device that selectively thaws only 1 mL of the UCB unit, leaving the remaining UCB unit cryopreserved for subsequent transplantation. We also show that large numbers of CD56(+) natural killer (NK) cells can be expanded from these 1-mL fractions of selectively accessed UCB. Immunomagnetic depletion of CD3(+) cells of the 1-mL fraction was performed, and the cells were subsequently stimulated with irradiated Epstein-Barr virus-transformed lymphoblastoid cell lines (EBV-LCLs) and set to culture in media containing interleukin (IL)-2.

resultsWhen a 1:20 ratio of total nucleated cells to EBV-LCL feeder cells was used, day-21 and day-35 NK cell cultures initiated from 1 mL of UCB contained a median of 430 × 10(6) (range: 44-4321 × 10(6)) and 6092 × 10(6) (range: 165-20947 × 10(6)) CD3(-)CD56(+) NK cells. These cells expressed high levels of CD161, LFA-1, CD69, NKG2D, NKp30, NKp44, NKp80 and NKp46. UCB-derived NK cells were highly cytotoxic against K562 leukemia cells, although cytotoxicity was slightly lower than in expanded PBMC-derived NK cells.

conclusionsWe have developed and optimized a strategy to selectively access a small fraction from cryopreserved UCB and show that large numbers of CD56(+) cells can be expanded from this selectively accessed fraction. This strategy presents a method to explore whether early adoptive transfer of NK cells expanded from the same UCB unit used for transplantation can prevent leukemic relapse and decrease graft-versus-host disease after UCBT.

Indexed as

Cord Blood Stem Cell TransplantationCD56 AntigenCell ProliferationCryopreservationCytotoxicity, ImmunologicEquipment DesignFeeder CellsFetal BloodGraft vs Host DiseaseHumansImmunotherapyK562 CellsKiller Cells, NaturalLeukocytes, MononuclearCD56 AntigenNCAM1 protein, humancryopreserved cord bloodexpanded NK cellsex vivo expansionnatural killer cellsumbilical cord blood

Identifiers

PMID26432560
PMCPMC7241296
OpenAlexW1809696732

What OpenQuestion holds

Textmetadata
LicenceTDM
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.