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Taggart MS, Tchir A, Van Dieren L, Chen H, Hassan M, Taveras C, Lellouch AG, Toner M, Sandlin RD, Uygun K. Parallelized Droplet Vitrification Enables Single-Run Vitrification of the Whole Rat Liver Hepatocyte Yield. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.14.603471. [PMID: 39071342 PMCID: PMC11275928 DOI: 10.1101/2024.07.14.603471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Drug discovery pipelines rely on the availability of isolated primary hepatocytes for investigating potential hepatotoxicity prior to clinical application. These hepatocytes are typically isolated from livers rejected for transplantation and subsequently cryopreserved for later usage. The gold-standard cryopreservation technique, slow-freezing, is a labor-intensive process, with significant post-storage viability loss. In this work, we introduce parallelized droplet vitrification, a technique for high-volumetric, rapid vitrification of suspended cells. We show the utility of this technique through the single-run vitrification of the whole-rate liver hepatocyte yield, resulting in a 1600% increase in single-batch vitrification and a 500% increase in droplet generation rate compared to previous droplet vitrification approaches. Additionally, we showed that these implementations maintained improved post-preservation outcomes in primary rat hepatocytes.
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Affiliation(s)
- M S Taggart
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
| | - A Tchir
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
- Massachusetts Institute of Technology, Boston, MA
| | - L Van Dieren
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
- Vascularized Composite Allotransplantation Laboratory, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - H Chen
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
| | - M Hassan
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
| | - C Taveras
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
| | - A G Lellouch
- Shriners Children's Boston, Boston, MA, USA
- Vascularized Composite Allotransplantation Laboratory, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- INSERM UMRS 1140 Innovation Thérapeutique en Hémostase, University of Paris, Paris, France
| | - M Toner
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
| | - R D Sandlin
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - K Uygun
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Shriners Children's Boston, Boston, MA, USA
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