title: Organ-on-a-chip: development and clinical prospects toward toxicity assessment with an emphasis on bone marrow.
abstract: Conventional approaches for toxicity evaluation of drugs and chemicals, such as animal tests, can be impractical due to the large experimental scale and the immunological differences between species. Organ-on-a-chip models have recently been recognized as a prominent alternative to conventional toxicity tests aiming to simulate the human in vivo physiology. This review focuses on the organ-on-a-chip applications for high-throughput screening of candidate drugs against toxicity, with a particular emphasis on bone-marrow-on-a-chip. Studies in which organ-on-a-chip models have been developed and utilized to maximize the efficiency and predictability in toxicity assessment are introduced. The potential of these devices to replace tests of acute systemic toxicity in animals, and the challenges that are inherent in simulating the human immune system are also discussed. As a promising approach to overcome the limitations, we further focus on an in-depth analysis of the development of bone-marrow-on-a-chip that is capable of simulating human immune responses against external stimuli due to the key roles of marrow in immune systems with hematopoietic activities. Owing to the complex interactions between hematopoietic stem cells and marrow microenvironments, precise control of both biochemical and physical niches that are critical in maintenance of hematopoiesis remains a key challenge. Thus, recently developed bone-marrow-on-a-chip models support immunogenicity and immunotoxicity testing in long-term cultivation with repeated antigen stimulation. In this review, we provide an overview of clinical studies that have been carried out on bone marrow transplants in patients with immune-related diseases and future aspects of clinical and pharmaceutical application of bone-marrow-on-a-chip.
authors.affiliation: Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Kwangjin-gu, Seoul, 143-701, Korea.
authors.forename: Jeehye
authors.initials: J
authors.lastname: Kim
authors.forename: Hanna
authors.initials: H
authors.lastname: Lee
authors.forename: Šeila
authors.initials: Š
authors.lastname: Selimović
authors.forename: Robert
authors.initials: R
authors.lastname: Gauvin
authors.forename: Hojae
authors.initials: H
authors.lastname: Bae
mesh_terms: D000818:Animals; D001853:Bone Marrow / Q000187:drug effects* / Q000276:immunology; D064420:Drug-Related Side Effects and Adverse Reactions; D057166:High-Throughput Screening Assays; D006801:Humans; D056656:Lab-On-A-Chip Devices; D046888:Tissue Array Analysis; D023822:Tissue Engineering; D018675:Toxicity Tests / Q000295:instrumentation / Q000379:methods*; D015262:Xenobiotics / Q000633:toxicity*
chemical_list: D015262:Xenobiotics
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