Humoral vs Cell mediated Immunity- Definition, 20 Differences

by

Differences between Humoral Immunity and Cell mediated Immunity

Image Source: Pinterest.

Here are some differences:

S.N.

Characteristics

Humoral Immunity

Cell-mediated Immunity
1. Definition The immunity mediated by macromolecules found in the extracellular body fluids is called humoral immunity. (“humor” a medieval term for body fluid) The immunity that identifies and destroys infected cells in the body is called cell-mediated immunity.
2. Mediator The main cell involved in humoral immunity are B-cells. The main cell involved in cell-mediated immunity are T-cells.
3. Components B cells, T cells, and macrophages. Helper T cells, cytotoxic T-cells, natural killer cells, and macrophages.
4. Pathogen The humoral immunity protects against extracellular pathogens and also their toxin. The cell-mediated immunity protects against intracellular pathogens.
5. Pathogen recognition Recognize antigens or pathogens that are circulating in the lymph or blood.  It responds to any cell that displays aberrant MHC markers, including cells invaded by pathogens, tumor cells, or transplanted cells.
6. Antigen detectors Phagocytes and antibodies themselves are used to detect antigens. Receptors and MHC molecules on the cell surfaces are used to detect antigens.
7. Antigen Binding B-cells produce antibodies and the antibodies bind to antigens. T-cell receptors on cells bind to T-cells which in turn bind to antigens.
8. Antigen Processing Do not require the processing of antigens. Antigens must be processed and presented for T-lymphocyte mediated response.
9. Receptor Involved It involves B-cell receptors (BCRs). It involves T-cell receptors (TCRs).
10. Accessory surface receptors/molecules Igα, Igβ, Fc receptors, CD40, CD21 CD3 molecular complex

Dimer of ∑ chain, CD4, CD8, CD2, CD28, integrins
11. Type of T-cell involved Only the T helper cell (CD4+) is involved. Both CD4+ and CD8+ T cells are involved.
12. Antibodies formation Antibodies are formed in a humoral response. Antibodies are not formed in a cell-mediated immune response.
13. Onset The onset is rapid. The onset is delayed.
14. Result The end result of the activation is the differentiation of plasma B-cells, secreting antibodies. The end result of the activation is the secretion of cytokines.
15. Protection against Extracellular bacterial or viral pathogens. It protects against fungus, viruses, and intracellular bacterial pathogens.
16. Immunological surveillance It does not provide immunological surveillance. It provides immunological surveillance.
17. Hypersensitivity reactions Hypersensitivity type I, II, and III is mediated by humoral immunity. Hypersensitivity type IV is mediated by cell-mediated immunity.
18. Role in Organ transplantation and Grafting It may be involved in early graft rejection due to preformed antibodies. It participates in rejections of organ transplants.
19. Immunity against cancer It does not provide immunity against cancer. As it destroys the tumor and cancerous cells, it provides protection against cancer.
20. Assessment method From plasma level of antibodies Skin test for the development of delayed-type of hypersensitivity

References

  1. http://www.differencebetween.net/science/difference-between-humoral-and-cell-mediated-immunity/
  2. http://www.easybiologyclass.com/difference-between-cell-mediated-and-humoral-immunity-comparison-table/
  3. https://www.researchgate.net/publication/320180727_Difference_Between_Humoral_and_Cell_Mediated_Immunity
  4. http://howmed.net/pathology/comparison-of-humoral-and-cell-mediated-immunity/
  5. https://medicscenter.com/humoral-vs-cell-mediated-immunity/

Humoral and Cell mediated Immunity

About Author

Photo of author

Sagar Aryal, PhD

Dr. Sagar Aryal is a microbiologist, researcher, and science communicator from Nepal. He is also co-founder and Research Head of the Department of Natural Products at the Kathmandu Research Institute for Biological Sciences (KRIBS), where he leads research on natural product discovery and microbial biodiversity. Dr. Aryal earned his Ph.D. in Microbiology from Tribhuvan University, Kathmandu, Nepal, in 2025, supported by a DAAD Research Grant and a University Grants Commission (UGC) Nepal Ph.D. Fellowship. His research interests include Actinomycetes, Myxobacteria, microbial taxonomy, and natural products, particularly the discovery of bioactive compounds with potential pharmaceutical applications. He isolated and identified Nocardia nepalensis, a novel bacterial species from Nepal, contributing to understanding microbial diversity in the region. Dr. Aryal has published more than 16 research articles in international journals and contributed three book chapters to established academic publications. He has presented scientific research findings and developed international research collaborations through visits to more than 18 countries across Asia, Europe, North America, and Oceania. From 2023 to 2025, he served as the American Society for Microbiology (ASM) Young Ambassador to Nepal. Since December 2025, he has served as an Editorial Board Member of Scientific Reports, a Nature Portfolio journal. In recognition of his scientific contributions, Dr. Aryal received the NAST Science and Technology Youth Award 2025 from the Nepal Academy of Science and Technology. He previously received the Frs. Locke and Stiller Research Award (LSRA) for the 2017-2018 cycle from St. Xavier's College, Kathmandu, and a Nepal Academy of Science and Technology (NAST) Research Grant for 2017-2018. Alongside his scientific career, Dr. Aryal has more than 15 years of experience in blogging, content writing, and search engine optimization (SEO).