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4. Estrogen signaling in the dorsal raphe regulates binge-like drinking in mice

Author

Torres Irizarry, Valeria C., primary, Feng, Bing, additional, Yang, Xiaohua, additional, Nirali, Patel, additional, Schaul, Sarah, additional, Ibrahimi, Lucas, additional, Ye, Hui, additional, Luo, Pei, additional, Carrillo-Sáenz, Leslie, additional, Lai, Penghua, additional, Kota, Maya, additional, Dixit, Devin, additional, Wang, Chunmei, additional, Lasek, Amy W., additional, He, Yanlin, additional, and Xu, Pingwen, additional

Published
2022
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6. 1313-P: Short-Chain Fatty Acids Decrease Food Intake through Free Fatty Acid Receptors in the Brain

Author

LUO, PEI, primary, XU, PINGWEN, additional, FENG, BING, additional, YE, HUI, additional, PATEL, NIRALI, additional, LAYDEN, BRIAN T., additional, HE, YANLIN, additional, KOTA, MAYA, additional, DIXIT, DEVIN, additional, ANTONY, NIMISHA, additional, CARRILLO-SÁENZ, LESLIE, additional, TORRES IRIZARRY, VALERIA C., additional, IBRAHIMI, LUCAS, additional, and SCHAUL, SARAH, additional

Published
2022
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7. 151-OR: 27-Hydroxycholesterol Inhibits Food Intake through ERa-Mediated Activation of POMC Neurons

Author

YE, HUI, primary, FENG, BING, additional, LUO, PEI, additional, IBRAHIMI, LUCAS, additional, PATEL, NIRALI, additional, KOTA, MAYA, additional, DIXIT, DEVIN, additional, HE, YANLIN, additional, XU, PINGWEN, additional, ANTONY, NIMISHA, additional, CARRILLO-SÁENZ, LESLIE, additional, IRIZARRY, VALERIA C. TORRES, additional, and SCHAUL, SARAH, additional

Published
2022
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8. An estrogen-sensitive hypothalamus-midbrain neural circuit controls thermogenesis and physical activity

Author

Ye, Hui, primary, Feng, Bing, additional, Wang, Chunmei, additional, Saito, Kenji, additional, Yang, Yongjie, additional, Ibrahimi, Lucas, additional, Schaul, Sarah, additional, Patel, Nirali, additional, Saenz, Leslie, additional, Luo, Pei, additional, Lai, Penghua, additional, Torres, Valeria, additional, Kota, Maya, additional, Dixit, Devin, additional, Cai, Xing, additional, Qu, Na, additional, Hyseni, Ilirjana, additional, Yu, Kaifan, additional, Jiang, Yuwei, additional, Tong, Qingchun, additional, Sun, Zheng, additional, Arenkiel, Benjamin R., additional, He, Yanlin, additional, Xu, Pingwen, additional, and Xu, Yong, additional

Published
2022
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10. 27-Hydroxycholesterol acts on estrogen receptor α expressed by POMC neurons in the arcuate nucleus to modulate feeding behavior.

Author

Ye H, Yang X, Feng B, Luo P, Torres Irizarry VC, Carrillo-Sáenz L, Yu M, Yang Y, Eappen BP, Munoz MD, Patel N, Schaul S, Ibrahimi L, Lai P, Qi X, Zhou Y, Kota M, Dixit D, Mun M, Liew CW, Jiang Y, Wang C, He Y, and Xu P

Subjects
Animals, Female, Mice, Estrogen Receptor alpha metabolism, Pro-Opiomelanocortin metabolism, Arcuate Nucleus of Hypothalamus metabolism, Arcuate Nucleus of Hypothalamus drug effects, Feeding Behavior, Hydroxycholesterols pharmacology, Hydroxycholesterols metabolism, Neurons metabolism, Neurons drug effects
Abstract

Oxysterols are metabolites of cholesterol that regulate cholesterol homeostasis. Among these, the most abundant oxysterol is 27-hydroxycholesterol (27HC), which can cross the blood-brain barrier. Because 27HC functions as an endogenous selective estrogen receptor modulator, we hypothesize that 27HC binds to the estrogen receptor α (ERα) in the brain to regulate energy balance. Supporting this view, we found that delivering 27HC to the brain reduced food intake and activated proopiomelanocortin (POMC) neurons in the arcuate nucleus of the hypothalamus (POMC ARH ) in an ERα-dependent manner. In addition, we observed that inhibiting brain ERα, deleting ERα in POMC neurons, or chemogenetic inhibition of POMC ARH neurons blocked the anorexigenic effects of 27HC. Mechanistically, we further revealed that 27HC stimulates POMC ARH neurons by inhibiting the small conductance of the calcium-activated potassium (SK) channel. Together, our findings suggest that 27HC, through its interaction with ERα and modulation of the SK channel, inhibits food intake as a negative feedback mechanism against a surge in circulating cholesterol.

Published
2024
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