New Players in the Immune Response

Cross-section through a lymph node. Unconventional T cells (green), which have migrated from the tissue, are located in the marginal sinus and in the interfollicular zone. Follicular B cells in magenta, the lymph node capsule and lymphatic vessels in blue
Credit: Konrad Knöpper / University of Würzburg

Lymph nodes trigger very different immune responses – depending on which body tissue they are connected to. Special T cells are responsible for this newly discovered relation.

The human body contains 600 to 800 lymph nodes, which are specialised organs that trigger immune responses. To be informed about infections in the body, lymph nodes are connected to the individual organs via lymph vessels. From the organs, the lymph vessels transport fluids and special immune cells to the lymph nodes. These immune cells are called dendritic cells; they carry information from the organs into the lymph nodes and pass it on to other immune cells there.

Now it is clear: the dendritic cells are not solely responsible for this important flow of information. A research team led by immunologist Professor Wolfgang Kastenmüller from Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany, has discovered that so-called unconventional T cells also continuously migrate from the tissue into the lymph nodes and influence the immune responses there.

This discovery has consequences – for vaccination strategies as well as for immunotherapies against cancer.

Different subtypes of unconventional T cells

“Each tissue in our body has different subtypes of unconventional T cells,” explains Wolfgang Kastenmüller. “Since these cells each migrate to the nearest lymph node, the individual lymph nodes also differ in the composition of the T cells. And that has a direct effect on the immune responses of the individual lymph nodes.”

For example, a lymph node that has been informed about an infection in the lungs triggers a different immune response than a lymph node that receives its information from the intestine or from the skin.

Taking advantage of the differences between lymph nodes

A vaccination administered into the skin or muscle, for example, always addresses lymph nodes that are connected to the skin. However, the vaccine may be much more effective if it is administered near other lymph nodes. This consideration also applies to immunotherapies against cancer.

“That is why we want to investigate next whether we can use the difference in lymph nodes to make vaccinations more efficient or to improve immunotherapies against cancer,” says the JMU professor. Another interesting question is whether the differences in the lymph nodes can be actively influenced. And it is to be clarified what significance the new findings have with regard to the development of autoimmune diseases and cancer.

Participating research groups / funding

The results of the researchers have been published in the journal “Immunity”. Marco Ataide, Paulina Cruz de Casas and Konrad Knöpper, all from Kastenmüller’s team at the JMU Chair of Systems Immunology I, were significantly involved in the work.

Researchers from the Würzburg Helmholtz Institute for RNA-based Infection Research (HIRI), the JMU Institute for Molecular Infection Biology (IMIB), the Centre d’Immunologie de Marseille-Luminy (CIML) and the Medical Clinic II of the Würzburg University Hospital also participated.

The work was financially supported by the Max Planck Society and by the European Research Council within the framework of an ERC Consolidator Grant for Wolfgang Kastenmüller.

Wissenschaftliche Ansprechpartner:

Prof. Dr. Wolfgang Kastenmüller, Chair of Systems Immunology I; University of Würzburg,


Lymphatic migration of unconventional T cells promotes site-specific immunity in distinct lymph nodes. Immunity, 23. August 2022, DOI: 10.1016/j.immuni.2022.07.019

Weitere Informationen:

Media Contact

Robert Emmerich Presse- und Öffentlichkeitsarbeit
Julius-Maximilians-Universität Würzburg

All latest news from the category: Life Sciences and Chemistry

Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.

Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.

Back to home

Comments (0)

Write a comment

Newest articles

Nanoscopic advance of colossal significance

In a new breakthrough, researchers at the University of Copenhagen, in collaboration with Ruhr University Bochum, have solved a problem that has caused quantum researchers headaches for years. The researchers…

Qubits on strong stimulants

Researchers find ways to improve the storage time of quantum information in a spin rich material. An international team of scientists have demonstrated a leap in preserving the quantum coherence…

Quantum sensors see Weyl photocurrents flow

Boston College-led team develops new quantum sensor technique to image and understand the origin of photocurrent flow in Weyl semimetals. Quantum sensors can be used to reveal a surprising new…

Partners & Sponsors