Evidence map›Paper›PMID 18413859›Full record

ArticleBlood2008

A new mechanism for the aging of hematopoietic stem cells: aging changes the clonal composition of the stem cell compartment but not individual stem cells.

Rebecca H Cho, Hans B Sieburg, Christa E Muller-Sieburg

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 209 papers.

0numbers the graph read from it
0cells of the map it votes in
209citing papers in PubMed
8.4field-weighted citation impact, top 2% 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

209 citing papers in PubMed, 379 citations in OpenAlex.

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149 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Rebecca H ChoSidney Kimmel Cancer Center, San Diego, CA 92121, USA.
Hans B Sieburg
Christa E Muller-Sieburg
Sidney Kimmel Cancer Center · US

Funding

STROMAL CELL MOLECULES REGULATE STEM CELL PROLIFERATIONR01DK048015 · NIDDK · SIDNEY KIMMEL CANCER CENTER · PI SIEBURG, HANS B · 1996 to 2012
$4.5M
CLONAL ANALYSIS OF AGED HEMATOPOIETIC STEM CELLSR01AG023197 · NIA · SIDNEY KIMMEL CANCER CENTER · PI MULLER-SIEBURG, CHRISTA E. · 2004 to 2008
$1.8M
Epigenetic control of hematopoietic stem cellsR56DK048015 · NIDDK · SIDNEY KIMMEL CANCER CENTER · PI MULLER-SIEBURG, CHRISTA E. · 2007 to 2007
$483k
STROMAL CELL MOLECULES REGULATE STEM CELL PROLIFERATIONR55DK048015 · NIDDK · MEDICAL BIOLOGY INSTITUTE · PI MULLER-SIEBURG, CHRISTA E. · 1995 to 1995
–
NIA NIH HHS AG023197NIA NIH HHS R01 AG023197NIDDK NIH HHS DK048015NIDDK NIH HHS R01 DK048015NIDDK NIH HHS R56 DK048015
6 · The paper itself

Abstract

Whether hematopoietic stem cells (HSCs) change with aging has been controversial. Previously, we showed that the HSC compartment in young mice consists of distinct subsets, each with predetermined self-renewal and differentiation behavior. Three classes of HSCs can be distinguished based on their differentiation programs: lymphoid biased, balanced, and myeloid biased. We now show that aging causes a marked shift in the representation of these HSC subsets. A clonal analysis of repopulating HSCs demonstrates that lymphoid-biased HSCs are lost and long-lived myeloid-biased HSCs accumulate in the aged. Myeloid-biased HSCs from young and aged sources behave similarly in all aspects tested. This indicates that aging does not change individual HSCs. Rather, aging changes the clonal composition of the HSC compartment. We show further that genetic factors contribute to the age-related changes of the HSC subsets. In comparison with B6 mice, aged D2 mice show a more pronounced shift toward myeloid-biased HSCs with a corresponding reduction in the number of both T- and B-cell precursors. This suggests that low levels of lymphocytes in the blood can be a marker for HSC aging. The loss of lymphoid-biased HSCs may contribute to the impaired immune response to infectious diseases and cancers in the aged.

Indexed as

AgingAnimalsBloodB-LymphocytesCell LineageCellular SenescenceClone CellsGenetic MarkersHematopoietic Stem CellsLymphocytesMiceMice, CongenicMice, Inbred StrainsMice, TransgenicMyeloid CellsThymus GlandGenetic Markers

Identifiers

PMID18413859
PMCPMC2424153
OpenAlexW1974139477

What OpenQuestion holds

Textmetadata
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.