Which type of cells are derived from a different species?

Xenogenic cells are indeed derived from a different species, making them distinct in comparison to the other types of cells listed. This term specifically refers to cells that originate from a species different from that of the organism receiving the cells. This concept is especially relevant in the context of organ transplantation and cellular therapies where cells from one species (such as pigs or cows) are used in applications meant for another species (usually humans).

In contrast, allogenic cells are derived from the same species but from a genetically different individual, often used in transplant scenarios where donor tissues are matched for compatibility. Embryonic stem cells are undifferentiated cells derived from the embryos of the same species, and adult stem cells are multipotent cells found within adult tissues, also from the same species. Therefore, xenogenic cells stand out as they bridge a gap between different species, which is crucial in specific biomedical applications.