Some hematopoietic stem cells are more equal than others: Figure 1.

Distinct Hematopoietic Stem Cell Subtypes Are Differentially Regulated by TGF-β1

(2010) Grant A. Challen et al.   Cell Stem Cell

Heterogeneity and hierarchy within the most primitive hematopoietic stem cell compartment

(2010) Yohei Morita et al.   JOURNAL OF EXPERIMENTAL MEDICINE

Functionally distinct hematopoietic stem cells modulate hematopoietic lineage potential during aging by a mechanism of clonal expansion

(2010) I. Beerman et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Prospective isolation and molecular characterization of hematopoietic stem cells with durable self-renewal potential

(2009) D. G. Kent et al.   BLOOD

CD150- cells are transiently reconstituting multipotent progenitors with little or no stem cell activity

(2008) M. J. Kiel et al.   BLOOD

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

(2008) R. H. Cho et al.   BLOOD

Hematopoietic Stem Cells Reversibly Switch from Dormancy to Self-Renewal during Homeostasis and Repair

(2008) Anne Wilson et al.   CELL

Long-term haematopoietic reconstitution by Trp53-/-p16Ink4a-/-p19Arf-/- multipotent progenitors

(2008) Omobolaji O. Akala et al.   NATURE

Analysis of histone 2B-GFP retention reveals slowly cycling hematopoietic stem cells

(2008) Adlen Foudi et al.   NATURE BIOTECHNOLOGY

Ablation of thymic export causes accelerated decay of naive CD4 T cells in the periphery because of activation by environmental antigen

(2008) C. Bourgeois et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA