Evidence map›Paper›PMID 19043810›Full record

ArticleInternational journal of hematology2008

Adhesion-dependent growth of primary adult T cell leukemia cells with down-regulation of HTLV-I p40Tax protein: a novel in vitro model of the growth of acute ATL cells.

Kazuhiro Nagai, Itsuro Jinnai, Tomoko Hata, Tetsuya Usui, Daisuke Sasaki, Kunihiro Tsukasaki, Kazuyuki Sugahara, Yoshitaka Hishikawa, Yasuaki Yamada, Yuetsu Tanaka and 4 more

Abstract read
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Article in International journal of hematology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
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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

14 authors.

Kazuhiro NagaiTransfusion Service, Nagasaki University Hospital of Medicine and Dentistry, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan. agwkn@nagasaki-u.ac.jp.
Itsuro JinnaiDivision of Hematology, Department of Internal Medicine, Saitama Medical School, Saitama, Japan.
Tomoko HataDepartment of Hematology, Molecular Medicine Unit, Atomic Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Tetsuya UsuiDepartment of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Daisuke SasakiDepartment of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Kunihiro TsukasakiDepartment of Hematology, Molecular Medicine Unit, Atomic Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Kazuyuki SugaharaDepartment of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Yoshitaka HishikawaDepartment of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Yasuaki YamadaDepartment of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Yuetsu TanakaDepartment of Immunology, Graduate School and Faculty of Medicine, University of the Ryukyus, Okinawa, Japan.
Takehiko KojiDepartment of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Hiroyuki ManoDivision of Functional Genomics, Jichi Medical University, CREST, Japan Science and Technology Agency, Tochigi, Japan.
Shimeru KamihiraTransfusion Service, Nagasaki University Hospital of Medicine and Dentistry, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
Masao TomonagaDepartment of Hematology, Molecular Medicine Unit, Atomic Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In order to better understand the biology of adult T cell leukemia (ATL), we aimed to establish a novel method, which allows the primary growth of ATL cells using a co-culture system with murine bone marrow-derived stromal cells, MS-5. ATL cells grew in close contact with MS-5 layers and formed so-called "cobblestone areas" (CAs) without the addition of IL-2. In clinical samples, eight of ten (80.0%) cases of acute or lymphoma type ATL cells formed CAs. The frequency of CA forming cells in ATL cells ranged from 0.03 to 1.04%. The morphology, immunophenotyping, and DNA analysis indicated that cells composing CA were compatible with ATL cells, and clonally identical to primary CD4-positive ATL cells. Furthermore, in ATL cells composing CA, the expression of p40Tax was down-regulated in transcriptional and translational level, while that of HTLV-I basic leucine zipper factor (HBZ) gene was comparable to the level of primary ATL cells, resembling expression pattern of proviral genes in in vivo ATL cells. By microarray analysis, several genes which coded products involved in cell-cell interaction, and cellular survival and proliferation, were differentially expressed in ATL cells composing CA compared with primary samples. In conclusion, our co-culture system allows for the first time the growth of primary ATL cells in vitro, and might be useful as an in vitro assay for biological and clinical studies to develop molecular targeting drugs against ATL.

Indexed as

Cell ProliferationDown-RegulationGene Expression Regulation, LeukemicHuman T-lymphotropic virus 1Models, BiologicalAcute DiseaseAnimalsCell AdhesionCell LineCell SurvivalCoculture TechniquesGene Expression ProfilingGene Products, taxHumansInterleukin-2Leukemia-Lymphoma, Adult T-CellGene Products, taxIL2 protein, humanInterleukin-2tax protein, Human T-lymphotrophic virus 1

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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.