Research focus of Subarea 1.

Subarea 1: Stem Cell Aging

The individual research groups within Subarea 1 investigate the causes and consequences of stem cell aging. The research work spans from basic model organisms over genetic mouse models up to humanized mouse models engrafted with human stem cells.

According to the FLI, with the closure of two groups since 2016 the representation of invertebrate models of stem cell research was reduced in Subarea 1. The institute presumes that the recruitment of new groups should fill this gap.

The research is defined by four focus areas:

  • Cell-intrinsic mechanisms limiting the function of aging stem and progenitor cells,
  • Aging-associated alterations of stem cell niches and the systemic environment,
  • Mechanisms of clonal selection and epigenetic drifts in stem cell aging, and
  • Microbiota- and metabolism-induced impairments in stem cell function during aging (in context of the new focus area Microbiota and Aging currently being built up within Subarea 2).

Research focus of Subarea 1.

a) It is currently not well understood what mechanisms impair cellular functions in aging. b) The relative contribution of niche cells and systemic acting factors on stem cell aging have yet to be determined in different tissues. c) Clonal expansion of mutant cells associates with disease development in aging humans. Mechanistically, the process remains poorly understood. Changes in color intensity depict clonal dominance originating from stem (green) or progenitor cells (gray). d) Emerging evidences indicate that aging associated alterations in microbiota influence stem cell function and vice versa.

Publications

(since 2016)

2019

  • Adaptive immunodeficiency accelerates the development of intestinal atrophy in telomere dysfunctional mice during ageing
    Bajwa S
    Dissertation 2019, Jena, Germany
  • Cohesin-mediated NF-κB signaling limits hematopoietic stem cell self-renewal in aging and inflammation.
    Chen Z, Amro EM, Becker F, Hölzer M, Rasa SMM, Njeru SN, Han B, Di Sanzo S, Chen Y, Tang D, Tao S, Haenold R, Groth M, Romanov VS, Kirkpatrick JM, Kraus JM, Kestler HA, Marz M, Ori A, Neri F, Morita** Y, Rudolph** KL
    J Exp Med 2019, 216(1), 152-75 ** co-corresponding authors
  • Clonal evolution patterns in acute myeloid leukemia with NPM1 mutation.
    Cocciardi S, Dolnik A, Kapp-Schwoerer S, Rücker FG, Lux S, Blätte TJ, Skambraks S, Krönke J, Heidel FH, Schnöder TM, Corbacioglu A, Gaidzik VI, Paschka P, Teleanu V, Göhring G, Thol F, Heuser M, Ganser A, Weber D, Sträng E, Kestler HA, Döhner H, Bullinger L, Döhner K
    Nat Commun 2019, 10(1), 2031
  • Wnt Signaling Mediates the Aging-Induced Differentiation Impairment of Intestinal Stem Cells.
    Cui H, Tang D, Garside GB, Zeng T, Wang Y, Tao Z, Zhang L, Tao S
    STEM CELL REV REP 2019, 15(3), 448-55
  • It is not all about regeneration: planarians striking power to stand starvation.
    Felix DA, Gutiérrez-Gutiérrez Ó, Espada L, Thems A, González-Estévez C
    Semin Cell Dev Biol 2019, 87, 169-81
  • Hepatic leukemia factor is a novel leukemic stem cell regulator in DNMT3A, NPM1, and FLT3-ITD triple-mutated AML.
    Garg S, Reyes-Palomares A, He L, Bergeron A, Lavallée VP, Lemieux S, Gendron P, Rohde C, Xia J, Jagdhane P, Müller-Tidow C, Lipka DB, Imren S, Humphries RK, Waskow C, Vick B, Jeremias I, Richard-Carpentier G, Hébert J, Sauvageau G, Zaugg J, Barabé F, Pabst C
    Blood 2019, 134(3), 263-76
  • Comparative RNAi Screens in Isogenic Human Stem Cells Reveal SMARCA4 as a Differential Regulator.
    Güneş C, Paszkowski-Rogacz M, Rahmig S, Khattak S, Camgöz A, Wermke M, Dahl A, Bornhäuser M, Waskow C, Buchholz F
    Stem Cell Reports 2019, 12(5), 1084-98
  • TRiC activates the unfolded protein response and protects starved stem cells by modulating energy and lipid metabolism during planarian regeneration
    Gutiérrez-Gutiérrez* Ó, Felix* DA, Salvetti A, Thems A, Pietsch S, Koeberle A, Rudolph KL, González-Estévez C
    bioRxiv 2019, https://doi.org/10.1101/732875 * equal contribution
  • Isolation and Culture of Individual Myofibers and Their Adjacent Muscle Stem Cells from Aged and Adult Skeletal Muscle.
    Hüttner SS, Ahrens HE, Schmidt M, Henze H, Jung MJ, Schüler SC, von Maltzahn J
    Methods Mol Biol 2019, 2045, 25-36
  • Downregulation of mTOR Signaling Increases Stem Cell Population Telomere Length during Starvation of Immortal Planarians.
    Iglesias M, Felix DA, Gutiérrez-Gutiérrez Ó, De Miguel-Bonet MDM, Sahu S, Fernández-Varas B, Perona R, Aboobaker AA, Flores** I, González-Estévez** C
    Stem Cell Reports 2019, 13(2), 405-18 ** co-corresponding authors