Immune responses to human viral infections and cancer – Hans-Gustaf Ljunggren group

We have a strong interest in the human immunity. Our group studies innate and adaptive immune reactions to human viral infections, vaccines and cancer. We are also focused on enhancing immune function in the context of malignancies, including the development of novel NK cell-based immunotherapies for the treatment of cancer.

Our research

Cancer immunotherapy

In collaboration with academic and industry partners through a Vinnova-funded program, our group contributes to developing next-generation NK cell therapies targeting diverse cancers. These include highly differentiated, metabolically optimized, genetically engineered, or externally stimulated NK cells, with a focus on safety, accessibility, and efficacy.

Viral immunity and vaccine studies

We study immune responses to viral infections, particularly flaviviruses (TBEV, JEV, YFV), hantaviruses (Puumula, Andes), and SARS-CoV-2, including vaccine responses. During the pandemic, we established a large COVID-19 biobank to support both immediate and long-term immunological studies. Early findings from our group helped elucidate immune responses to SARS-CoV-2. We contributed to the KI/K COVID-19 Immune Atlas, offering a detailed overview of immune responses in COVID-19.

We have led and contributed to clinical trials in cancer immunotherapy and vaccination studies.

Interview about the 2011 Nobel Prize in Physiology or Medicine

Following the announcement, Professor Hans-Gustaf Ljunggren was interviewed by free lance journalist Jan-Olov Johansson about the 2011 Nobel Prize in Physiology or Medicine.

Speaking at the World Stem Cell Summit 2018

Video from Day 3 of the World Stem Cell Summit 2018 with the title: Reversing Cancer with Immunotherapies and Exosomes where Hans-Gustaf Ljunggren, MD, PhD (Karolinska Institutet) was one of the invited speakers.

Selected collaborators, Karolinska Institutet

Evren Alici, NK cell-based immunotherapies, clinical trials, NK cell-tumor cell engagers, oncolytic viruses, small molecule NK cell modulators

Jakob Michaelsson, Tissue specific immunity, mRNA profiling of innate immune cells

Nicole Marquardt, Tissue specific immunity, flow-cytometry based profiling of innate immune cells

Kalle Malmberg, Development of NK cell-based immunotherapies for treatment of human cancer, clinical trials

Jonas Klingström, Immunity and Immunopathogenesis of human hantavirus infections

Sara Gredmark-Russ, Immunity and immunopathogenesis of human flavivirus and SARS-CoV-2 infection

Karin Loré, Immunity towards flavivirus and SARS-CoV-2 vaccines

Niklas Björkström, Immunity to and immunopathogenesis of human hepatitis and SARS-CoV-2 viruses

Soo Aleman, Immunity to SARS-CoV-2 viruses and vaccines

Kristoffer Strålin, Immunity to SARS-CoV-2 viruses

Marcus Buggert, T cell immunity to SARS-CoV-2 viruses and vaccines

Johan Sandberg, Innate T cell immunity to SARS-CoV viruses and vaccines

Funding

  • Swedish Research Council
  • Swedish Cancer Society
  • Tobias Foundation
  • Swedish Foundation for Strategic Research
  • Karolinska Institutet
  • Stockholm County Council
  • Vinnova

Staff and contact

Group leader

All members of the group

Previous group members

Post docs (years)

Algarra, I., 1990-92; DeFries, R., 1994-95; DiPalo, D., 1994-96; Chambers, B., 1994-98; Norbury, C., 1996-97; Diehl, A., 1997-99; Shi, F.D., 1999-2001; Berglund, P., 1999-2001; Wilson, J., 1999-2001; Wang, H.B., 2000-01; Screpanti, V., 2002-04; Applequist, S., 2000-06; Donati, D., 2002-06; Achour, A., 2002-04; Malmberg, K.J., 2003-06; Guimaraes, F., 2004-06; Wacnik, P.W., 2004-06; van Hall, T., 2005-06; Waering, M., 2004-07; Baumann, B., 2004-06; Fauriat, C., 2006-09; Bryceson, Y., 2008-10; Wood, S, 2009-; Anthoni, M., 2009-11; Braun, M., 2010-; Darmanin, S., 2010-12; Kekäläinen, E., 2012-14; Mjösberg, J., Sweden, 2012-13; Marquardt, N., 2013-17; Blom, K., 2016-; Cuapio, A., 2017-, Chen, P., 2020-

Keywords:
Adaptive Immunity COVID-19 Vaccines Cancer Vaccines Flavivirus Hantavirus Infections Immunity, Innate Immunology in the Medical Area Immunotherapy Killer Cells, Natural Microbiology in the Medical Area SARS-CoV-2 Virology Show all
Content reviewer:
23-06-2025