The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Role of the Toll-like Receptor 4/NF-κB Pathway in Saturated Fatty Acid–Induced Inflammatory Changes in the Interaction Between Adipocytes and Macrophages
Open accessAbstract
Objective— Previous studies demonstrated that obese adipose tissue is characterized by increased infiltration of macrophages, suggesting that they might represent an important source of inflammation. Using an in vitro coculture system composed of 3T3-L1 adipocytes and RAW264 macrophages, we previously demonstrated that saturated fatty acids (FAs) and tumor necrosis factor (TNF)-α derived from adipocytes and macrophages, respectively, play a major role in the coculture-induced inflammatory changes. Methods and Results— Coculture of adipocytes and macrophages resulted in the activation of nuclear factor-κB (NF-κB), a primary regulator of inflammatory responses, in both cell types. Pharmacological inhibition of NF-κB markedly suppressed the coculture-induced production of proinflammatory cytokines and adipocyte lipolysis. Peritoneal macrophages obtained from Toll-like receptor 4 (TLR4) mutant mice exhibited marked attenuation of TNFα production in response to saturated FAs. Notably, coculture of hypertrophied adipocytes and TLR4-mutant macrophages resulted in marked inhibition of proinflammatory cytokine production and adipocyte lipolysis. We also observed that endogenous FAs, which are released from adipocytes via the β 3 -adrenergic stimulation, resulted in the activation of the TLR4/NF-κB pathway. Conclusion— These findings suggest that saturated FAs, which are released in large quantities from hypertrophied adipocytes via the macrophage-induced adipocyte lipolysis, serve as a naturally occurring ligand for TLR4, thereby inducing the inflammatory changes in both adipocytes and macrophages through NF-κB activation.
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Cites
Obesity is associated with macrophage accumulation in adipose tissue
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IKK-β links inflammation to obesity-induced insulin resistance
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Oligosaccharides of Hyaluronan Activate Dendritic Cells via Toll-like Receptor 4
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Metabolic Endotoxemia Initiates Obesity and Insulin Resistance
Cani, P. D., Amar, J., Iglesias, M. A., Poggi, M., Knauf, C., Bastelica, D., Neyrinck, A. M., Fava, F., Tuohy, K. M., Chabo, C., et al. (2007) · Diabetes · doi:10.2337/db06-1491 · Cited by 6,638
Adipocyte dysfunctions linking obesity to insulin resistance and type 2 diabetes.
Guilherme, A., Virbasius, J. V., Puri, V., & Czech, M. P. (2008) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2391 · Cited by 2,292
Adipose tissue dysfunction in obesity, diabetes, and vascular diseases
Hajer, G. R., van Haeften, T. W., & Visseren, F. L. J. (2008) · European Heart Journal · doi:10.1093/eurheartj/ehn387 · Cited by 1,410
Dietary factors and low-grade inflammation in relation to overweight and obesity
Calder, P. C., Ahluwalia, N., Brouns, F., Buetler, T., Clement, K., Cunningham, K., Esposito, K., Jönsson, L. S., Kolb, H., Lansink, M., et al. (2011) · British Journal of Nutrition · doi:10.1017/s0007114511005460 · Cited by 1,098
de La Serre, C. B., Ellis, C. L., Lee, J., Hartman, A. L., Rutledge, J. C., & Raybould, H. E. (2010) · American Journal of Physiology-Gastrointestinal and Liver Physiology · doi:10.1152/ajpgi.00098.2010 · Cited by 949
Metadata
- Authors
- Suganami, T., Tanimoto-Koyama, K., Nishida, J., Itoh, M., Yuan, X., Mizuarai, S., Kotani, H., Yamaoka, S., Miyake, K., Aoe, S., Kamei, Y., & Ogawa, Y.
- Venue
- Arteriosclerosis, Thrombosis, and Vascular Biology
- Published
- 2007-01
- Volume
- 27
- Issue
- 1
- Pages
- 84-91
- ISSN
- 1079-5642 (ISSN-L)
- 1524-4636
- OpenAlex
- W2137485611
- Cited by
- 812
- References
- 13
- FWCI
- 22.36
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Suganami, T., Tanimoto-Koyama, K., Nishida, J., Itoh, M., Yuan, X., Mizuarai, S., Kotani, H., Yamaoka, S., Miyake, K., Aoe, S., Kamei, Y., & Ogawa, Y. (2007). Role of the Toll-like Receptor 4/NF-κB Pathway in Saturated Fatty Acid–Induced Inflammatory Changes in the Interaction Between Adipocytes and Macrophages. Arteriosclerosis, Thrombosis, and Vascular Biology. https://doi.org/10.1161/01.atv.0000251608.09329.9a
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
