Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma

Current clinical imaging modalities for the sensitive and specific detection of multiple myeloma (MM) rely on nonspecific imaging contrast agents based on gadolinium chelates for magnetic resonance imaging (MRI) or for 18 F-FDG-directed and combined positron emission tomography (PET) and computed to...

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Main Authors: Thomas, Eloise, Mathieu, Clélia, Moreno‐Gaona, Patricia, Mittelheisser, Vincent, Lux, François, Tillement, Olivier, Pivot, Xavier, Ghoroghchian, Paiman Peter, Detappe, Alexandre
Other Authors: Koch Institute for Integrative Cancer Research at MIT
Format: Article
Language:English
Published: Wiley 2022
Online Access:https://hdl.handle.net/1721.1/141216
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author Thomas, Eloise
Mathieu, Clélia
Moreno‐Gaona, Patricia
Mittelheisser, Vincent
Lux, François
Tillement, Olivier
Pivot, Xavier
Ghoroghchian, Paiman Peter
Detappe, Alexandre
author2 Koch Institute for Integrative Cancer Research at MIT
author_facet Koch Institute for Integrative Cancer Research at MIT
Thomas, Eloise
Mathieu, Clélia
Moreno‐Gaona, Patricia
Mittelheisser, Vincent
Lux, François
Tillement, Olivier
Pivot, Xavier
Ghoroghchian, Paiman Peter
Detappe, Alexandre
author_sort Thomas, Eloise
collection MIT
description Current clinical imaging modalities for the sensitive and specific detection of multiple myeloma (MM) rely on nonspecific imaging contrast agents based on gadolinium chelates for magnetic resonance imaging (MRI) or for 18 F-FDG-directed and combined positron emission tomography (PET) and computed tomography (CT) scans. These tracers are not, however, able to detect minute plasma cell populations in the tumor niche, leading to false negative results. Here, a novel PET-based anti-BCMA nanoplatform labeled with 64 Cu is developed to improve the monitoring of these cells in both the spine and femur and to compare its sensitivity and specificity to more conventional immunoPET (64 Cu labeled anti-BCMA antibody) and passively targeted PET radiotracers (64 CuCl2 and 18 F-FDG). This proof-of-concept preclinical study confirmed that by conjugating up to four times more radioisotopes per antibody with the immuno-nanoPET platform, an improvement in the sensitivity and in the specificity of PET to detect tumor cells in an orthotopic model of MM is observed when compared to the traditional immunoPET approach. It is anticipated that when combined with tumor biopsy, this immuno-nanoPET platform may improve the management of patients with MM.
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spelling mit-1721.1/1412162023-02-03T19:33:32Z Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma Thomas, Eloise Mathieu, Clélia Moreno‐Gaona, Patricia Mittelheisser, Vincent Lux, François Tillement, Olivier Pivot, Xavier Ghoroghchian, Paiman Peter Detappe, Alexandre Koch Institute for Integrative Cancer Research at MIT Current clinical imaging modalities for the sensitive and specific detection of multiple myeloma (MM) rely on nonspecific imaging contrast agents based on gadolinium chelates for magnetic resonance imaging (MRI) or for 18 F-FDG-directed and combined positron emission tomography (PET) and computed tomography (CT) scans. These tracers are not, however, able to detect minute plasma cell populations in the tumor niche, leading to false negative results. Here, a novel PET-based anti-BCMA nanoplatform labeled with 64 Cu is developed to improve the monitoring of these cells in both the spine and femur and to compare its sensitivity and specificity to more conventional immunoPET (64 Cu labeled anti-BCMA antibody) and passively targeted PET radiotracers (64 CuCl2 and 18 F-FDG). This proof-of-concept preclinical study confirmed that by conjugating up to four times more radioisotopes per antibody with the immuno-nanoPET platform, an improvement in the sensitivity and in the specificity of PET to detect tumor cells in an orthotopic model of MM is observed when compared to the traditional immunoPET approach. It is anticipated that when combined with tumor biopsy, this immuno-nanoPET platform may improve the management of patients with MM. 2022-03-16T15:41:49Z 2022-03-16T15:41:49Z 2022-01 2022-03-16T15:34:24Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/141216 Thomas, Eloise, Mathieu, Clélia, Moreno‐Gaona, Patricia, Mittelheisser, Vincent, Lux, François et al. 2022. "Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma." Advanced Healthcare Materials, 11 (2). en 10.1002/adhm.202101565 Advanced Healthcare Materials Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Wiley Wiley
spellingShingle Thomas, Eloise
Mathieu, Clélia
Moreno‐Gaona, Patricia
Mittelheisser, Vincent
Lux, François
Tillement, Olivier
Pivot, Xavier
Ghoroghchian, Paiman Peter
Detappe, Alexandre
Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma
title Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma
title_full Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma
title_fullStr Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma
title_full_unstemmed Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma
title_short Anti‐BCMA Immuno‐NanoPET Radiotracers for Improved Detection of Multiple Myeloma
title_sort anti bcma immuno nanopet radiotracers for improved detection of multiple myeloma
url https://hdl.handle.net/1721.1/141216
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