allogeneic

adjective

al·​lo·​ge·​ne·​ic ˌa-lō-jə-ˈnē-ik 

variants or less commonly allogenic

ˌa-lō-ˈje-nik 

1

usually allogeneic : involving, derived from, or being individuals of the same species that are sufficiently unlike genetically to interact antigenically

allogeneic stem cells

allogeneic marrow transplantation

compare syngeneic

2

allogenic : caused by the action or influence of abiotic environmental factors

… allogenic (disturbance) processes, such as flooding and sediment deposition patterns, in addition to wind events.

—Brian Lockhart et al.

Examples of allogeneic in a Sentence

Recent Examples on the Web

The idea behind the allogeneic (allo) transplant is that the donor’s cells will hopefully fight off the lymphoma more effectively than her own cells have. —Jordan Greene, People.com, 21 Mar. 2025

Sana's approach, which includes gene modifications to create cells that evade both allogeneic and autoimmune detection, could fundamentally change the landscape of diabetes treatment. —Juergen Eckhardt, Forbes, 18 Mar. 2025

Recently, for example, Sana Biotechnology announced promising data in one patient in a first-in-human allogeneic cell therapy for type 1 diabetes — without immunosuppression. —Juergen Eckhardt, Forbes, 16 Jan. 2025

This approach could enable transplantation across the allogeneic barrier, offering a scalable and sustainable solution for T1D, and could enhance the safety and long-term efficacy of islet cell transplantation. —Sacramento Bee, 24 June 2024

This technology was developed to enable pancreatic islet cells replacement in the allogeneic setting (from a donor to an unrelated recipient) without the need for chronic systemic immunosuppression. —Sacramento Bee, 24 June 2024

The second risk for donor-derived, allogeneic therapies is tissue rejection; this occurs when the body treats the new cells as a foreign threat. —William A. Haseltine, Forbes, 14 Feb. 2024

This is an adverse reaction to an allogeneic transplant. —Sarah Fielding, Health, 9 Mar. 2023

The second type, allogeneic hematopoietic stem cell transplantation (HSCT), is more common and involves finding a donation from another person. —Emilie Le Beau Lucchesi, Discover Magazine, 17 Feb. 2023

Word History

Etymology

alteration of allogenic, from allo- + -genic

Note: The word allogenic as a term in genetics was introduced by the British immunologist Peter A. Gorer (1907-61) in the article "Transplantese," Annals of the New York Academy of Science, vol. 87, no. 1 (May, 1960), pp. 604-606. In a subsequent article (P. A. Gorer, et al., "Proposed revisions of 'Transplantese'," Nature, vol. 189, no. 4769 (March 25, 1961), pp. 1024-25), the suggestion is made that allogenic be changed to allogeneic to avoid confusion with allergenic. The later article also introduces syngeneic as a synonym for earlier isogenic.

First Known Use

1929, in the meaning defined at sense 2

Rhymes for allogeneic

• photovoltaic
• algebraic
• aramaic
• formulaic
• ptolemaic
• syngeneic
• altaic
• archaic
• deltaic
• hebraic
• mosaic
• oleic

Medical Definition

allogeneic

adjective

al·​lo·​ge·​ne·​ic ˌal-ō-jə-ˈnē-ik 

variants also allogenic

-ˈjen-ik 

: involving, derived from, or being individuals of the same species that are sufficiently unlike genetically to interact antigenically

allogeneic skin grafts

compare syngeneic, xenogeneic