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Göran Karlsson Group

Stem Cells and Leukemia

Our research

The production of blood cells, hematopoiesis, is maintained by a small number of hematopoietic stem cells (HSCs) that have the capacity to differentiate into all hematopoietic lineages, and at the same time self-renew to maintain the HSC pool. Similarly to normal hematopoiesis, leukemias are organized in cellular hierarchies where leukemic stem cells (LSCs) drive tumor growth. LSCs have stem cell characteristics such as self-renewal capacity, quiescence and drug resistance, causing metastasis and relapse. LSCs are therefore a critical priority as targets for therapy. Our objective is to use single-cell methods to dissect the heterogeneity of stem cell populations and discriminate between HSCs and LSCs. This will allow for defining the transcriptional programs that govern HSC fate and explain the molecular basis for leukemogenesis as well as therapy resistance. Ultimately we will use this information to therapeutically target LSCs and thereby improve the treatment of leukemia.

Selected publications

  1. Sommarin, MNE, Warfvinge, R, Safi, F, Karlsson, G. 2018 'A combinatorial single-cell approach to characterize the molecular and immunophenotypic heterogeneity of human stem and progenitor populations' J Vis Exp vol 25;(140).
  2. Jensen CT, Åhsberg J, Sommarin MNE, Strid T, Somasundaram R, Okuyama K, Ungerbäck J, Kupari J, Airaksinen MS, Lang S, Bryder D, Soneji S, Karlsson G, Sigvardsson M. 2018 'Dissection of progenitor compartments resolves developmental trajectories in B-lymphopoieses' J Exp Med vol 215, nr. 7, s. 1947-1963.
  3. Guzzi, N, Ciesla, M, Ngoc, PCT., Lang, S, Arora, S, Dimitriou, M, Pimkova, K, Sommarin, MNE, Munita, R, Lubas, M, Lim, Y, Okuyama, K, Soneji, S, Karlsson, G, Hansson, J, Jönsson, G, Lund, AH, Sigvardsson, M, Hellström-Lindberg, E, Hsieh, A.c, Bellodi, C 2018, 'Pseudouridylation of tRNA-derived fragments steers translational control in stem cells.' Cell 2018 May 17;173(5):1204-1216.e26.
  4. Guibentif, C, Ršnn, RE, Böiers, C, Lang, S, Saxena, S, Soneji, S, Enver, T, Karlsson, G & Woods, N-B 2017, 'Single-Cell Analysis Identifies Distinct Stages of Human Endothelial-to-Hematopoietic Transition' Cell Reports, vol 19, nr. 1, s. 10-19.
  5. Warfvinge, R, Geironson Ulfsson, L, Sommarin, MNE, Lang, S, Karlsson, C, Roschupkina, T, Stenke, L, Stentoft, J, Olsson-Strömberg, U, Hjorth-Hansen, H, Mustjoki, S, Soneji, S, Richter, J & Karlsson, G* 2017, 'Single-cell molecular analysis defines therapy response and immunophenotype of stem cell subpopulations in CML' Blood, vol 129, nr. 17, s. 2384-2394.
Page Manager:

Göran Karlsson

Göran Karlsson

PhD, Senior Lecturer/Associate Professor

Phone: +46 (0)73 086 67 85
Email: goran [dot] karlsson [at] med [dot] lu [dot] se

Lund University Research Portal

Group members

Ram Krishna Thakur
PhD student
ram_krishna [dot] thakur [at] med [dot] lu [dot] se

Linda Geironson Ulfsson
PhD student
linda [dot] geironson_ulfsson [at] med [dot] lu [dot] se

Mikael Sommarin
mikael [dot] sommarin [at] med [dot] lu [dot] se

Fatemeh Safi
fatemeh [dot] safi [at] med [dot] lu [dot] se

Rebecca Warfvinge
rebecca [dot] warfvinge [at] med [dot] lu [dot] se

Parashar Dhapola
parashar [dot] dhapola [at] med [dot] lu [dot] se

Rasmus Olofzon
rasmus [dot] olofzon [at] med [dot] lu [dot] se

Visiting address

Division of Molecular Hematology
Lund Stem Cell Center, Lund University
Klinikgatan 26
SE-221 84 Lund

Room: BMC, B1454b

Molecular Hematology
Department of Laboratory Medicine, Faculty of Medicine
Lund University
Box 117
SE-221 00 LUND

E-mail & phone: info [at] med [dot] lu [dot] se  +46 (0)46 222 0000