The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Multiple myeloma cell adhesion-induced interleukin-6 expression in bone marrow stromal cells involves activation of NF-kappa B
Abstract
Adhesion of multiple myeloma (MM) cells to bone marrow stromal cells (BMSCs) not only localizes MM cells in the marrow microenvironment, but also triggers interleukin-6 (IL-6) secretion by BMSCs and related MM cell proliferation. In the present study, we characterized the regulation of IL-6 gene expression in BMSCs during MM cell adhesion. Adhesion of ARH-77, HS-Sultan, IM-9, and U266 MM cell lines to BMSCs and BMSC lines (LP 101 and AA 101) triggered 5-through 15-fold and 2- through 4-fold increases in IL-6 secretion, respectively. IL-6 mRNA transcripts were undetectable by Northern blotting in IM-9 MM cells or LP 101 BMSCs cultured alone; however, adherence of IM-9 cells to LP 101 cells induced a transient increase in IL-6 transcripts at 6 hours, followed by peak IL-6 secretion at 24 hours. To confirm increased IL-6 transcription and characterize its regulation, LP101 BMSCs were transiently transfected with full length and deletion fragments of the IL-6 promoter linked to the chloramphenicol acetyltransferase (CAT) reporter gene. Transient transfection of LP101 BMSCs with plasmid containing an intact NF-kappa B site showed a 6.8 +/- 0.4-fold increase in CAT activity triggered by IM-9 MM cell adhesion (n = 3, P < .05). Transfection of LP 101 cells with plasmid containing a single base pair deletion from the NF-kapp B binding motif abolished the MM adhesion- induced increase in CAT activity, whereas transfection with plasmid containing three copies of synthetic NF-kappa B sequence resulted in an 8.1 +/- 0.7-fold increase in CAT activity related to MM adhesion (n = 3, P < .05). These data suggest that the NF-kappa B site is one of the essential regulatory elements for MM cell adhesion-induced IL-6 transcription in BMSCs. Electrophoretic mobility shift assays confirmed the involvement of NF-kappa B activation in regulating MM adhesion- induced IL-6 transcription in BMSCs. Further characterization of the upstream events in the signalling cascade regulating IL-6 may not only delineate mechanisms of IL-6 regulation during paracrine MM cell growth, but also provide new therapeutic strategies based on interruption of IL-6 mediated tumor cell growth.
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NF-κB activation regulates expression of genes controlling proliferation, survival, immortalization, and angiogenesis, including IL-6, IGF-1, and BAFF.
“NF-κB activation regulates the expression of genes controlling proliferation, survival, immortalization, and angiogenesis, including IL-6, IGF-1, and BAFF [140, 141].”
From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [140]
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Autocrine generation and requirement of BSF-2/IL-6 for human multiple myelomas
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Interleukin-6 is a prognostic factor in multiple myeloma [letter] [see comments]
Ludwig, H., Nachbaur, D., Fritz, E., Krainer, M., & Huber, H. (1991) · Blood · doi:10.1182/blood.v77.12.2794.2794 · Cited by 158
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Multiple myeloma: signaling pathways and targeted therapy
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Metadata
- Authors
- Chauhan, D., Uchiyama, H., Akbarali, Y., Urashima, M., Yamamoto, K., Libermann, T., & Anderson, K.
- Affiliations
- Dana-Farber Cancer Institute (US)
- Division of Hematologic Malignancies, Dana-Farber Cancer Institute, Boston, MA 02115, USA.
- Venue
- Blood
- Publisher
- American Society of Hematology
- Published
- 1996-02-01
- Volume
- 87
- Issue
- 3
- Pages
- 1104-1112
- ISSN
- 0006-4971 (ISSN-L)
- 1528-0020
- OpenAlex
- W1520422891
- Cited by
- 563
- References
- 3
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 7 · 2023: 5 · 2022: 8 · 2021: 13 · 2020: 11 · 2019: 13 · 2018: 12 · 2017: 16 · 2016: 17 · 2015: 18 · 2014: 34 · 2013: 23 · 2012: 32
- FWCI
- 5.41
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Blood (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Cancer Institute (CA50947, R01CA050947)
- Topics
- Health Sciences › Medicine › Hematology › Multiple Myeloma Research and Treatments
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
- Health Sciences › Medicine › Oncology › Bone health and treatments
- Keywords
- multiple myeloma, mesenchymal stem cells, cell adhesion, interleukin-6, NF-κB, paracrine signaling, bone marrow microenvironment, NF-kappaB binding site, IL-6 secretion, IL-6 receptor signaling
- MeSH terms
- Base Sequence, Bone Marrow, Bone Marrow Cells, Cell Adhesion, Cells, Cultured, Connective Tissue, Connective Tissue Cells, Gene Expression Regulation, Humans, Molecular Sequence Data, Multiple Myeloma, Neoplasm Proteins, Recombinant Fusion Proteins, Transfection, Tumor Cells, Cultured, Interleukin-6, NF-kappa B, Coculture Techniques
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