TABLE 2-1 Different Types of Xenotransplant Rejection

CharacteristicHyperacuteAcute (delayed) Chronic
Time courseMinutes-hoursDays-weeksMonths-years
Type of immune reactionHumoralMostly cellularBoth
Site of actionBlood vesselsBlood vessels or other cellsUnknown
Limiting factor for: Whole organ xenograftsOrgan and cell xenograftsUnknown

From: 2, Assessing the Science Base

Cover of Xenotransplantation
Xenotransplantation: Science, Ethics, and Public Policy.
Institute of Medicine (US) Committee on Xenograft Transplantation: Ethical Issues and Public Policy.
Washington (DC): National Academies Press (US); 1996.
Copyright © 1996, National Academy of Sciences.

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