UMMS Affiliation

Department of Population and Quantitative Health Sciences

Publication Date

2021-08-25

Document Type

Article

Disciplines

Hemic and Lymphatic Diseases | Musculoskeletal Diseases | Neoplasms

Abstract

Multiple myeloma (MM) is a plasma cell malignancy that causes an accumulation of terminally differentiated monoclonal plasma cells in the bone marrow, accompanied by multiple myeloma bone disease (MMBD). MM animal models have been developed and enable to interrogate the mechanism of MM tumorigenesis. However, these models demonstrate little or no evidence of MMBD. We try to establish the MMBD model with severe bone lesions and easily accessible MM progression. 1 x 10(6) luciferase-expressing 5TGM1 cells were injected into 8-12 week-old NOD SCID gamma mouse (NSG) and C57BL/KaLwRij mouse via the tail vein. Myeloma progression was assessed weekly via in vivo bioluminescence (BL) imaging using IVIS-200. The spine and femur/tibia were extracted and scanned by the micro-computer tomography for bone histo-morphometric analyses at the postmortem. The median survivals were 56 days in NSG while 44.5 days in C57BL/KaLwRij agreed with the BL imaging results. Histomorphic and DEXA analyses demonstrated that NSG mice have severe bone resorption that occurred at the lumbar spine but no significance at the femur compared to C57BL/KaLwRij mice. Based on these, we conclude that the systemic 5TGM1 injected NSG mouse slowly progresses myeloma and develops more severe MMBD than the C57BL/KaLwRij model.

Keywords

multiple myeloma bone disease, murine model, severe osteolytic lesions

Rights and Permissions

Copyright © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

DOI of Published Version

10.3390/cancers13174277

Source

Mehdi SH, Morris CA, Lee JA, Yoon D. An Improved Animal Model of Multiple Myeloma Bone Disease. Cancers (Basel). 2021 Aug 25;13(17):4277. doi: 10.3390/cancers13174277. PMID: 34503090; PMCID: PMC8428359. Link to article on publisher's site

Journal/Book/Conference Title

Cancers

Related Resources

Link to Article in PubMed

PubMed ID

34503090

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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