Transcriptomic analysis links diverse hypothalamic cell types to fibroblast growth factor 1-induced sustained diabetes remission
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Transcriptomic analysis links diverse hypothalamic cell types to fibroblast growth factor 1-induced sustained diabetes remission. / Bentsen, Marie A.; Rausch, Dylan M.; Mirzadeh, Zaman; Muta, Kenjiro; Scarlett, Jarrad M.; Brown, Jenny M.; Herranz-Pérez, Vicente; Baquero, Arian F.; Thompson, Jonatan; Alonge, Kimberly M.; Faber, Chelsea L.; Kaiyala, Karl J.; Bennett, Camdin; Pyke, Charles; Ratner, Cecilia; Egerod, Kristoffer L.; Holst, Birgitte; Meek, Thomas H.; Kutlu, Burak; Zhang, Yu; Sparso, Thomas; Grove, Kevin L.; Morton, Gregory J.; Kornum, Birgitte R.; García-Verdugo, José Manuel; Secher, Anna; Jorgensen, Rasmus; Schwartz, Michael W.; Pers, Tune H.
In: Nature Communications, Vol. 11, No. 1, 4458, 2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Transcriptomic analysis links diverse hypothalamic cell types to fibroblast growth factor 1-induced sustained diabetes remission
AU - Bentsen, Marie A.
AU - Rausch, Dylan M.
AU - Mirzadeh, Zaman
AU - Muta, Kenjiro
AU - Scarlett, Jarrad M.
AU - Brown, Jenny M.
AU - Herranz-Pérez, Vicente
AU - Baquero, Arian F.
AU - Thompson, Jonatan
AU - Alonge, Kimberly M.
AU - Faber, Chelsea L.
AU - Kaiyala, Karl J.
AU - Bennett, Camdin
AU - Pyke, Charles
AU - Ratner, Cecilia
AU - Egerod, Kristoffer L.
AU - Holst, Birgitte
AU - Meek, Thomas H.
AU - Kutlu, Burak
AU - Zhang, Yu
AU - Sparso, Thomas
AU - Grove, Kevin L.
AU - Morton, Gregory J.
AU - Kornum, Birgitte R.
AU - García-Verdugo, José Manuel
AU - Secher, Anna
AU - Jorgensen, Rasmus
AU - Schwartz, Michael W.
AU - Pers, Tune H.
PY - 2020
Y1 - 2020
N2 - In rodent models of type 2 diabetes (T2D), sustained remission of hyperglycemia can be induced by a single intracerebroventricular (icv) injection of fibroblast growth factor 1 (FGF1), and the mediobasal hypothalamus (MBH) was recently implicated as the brain area responsible for this effect. To better understand the cellular response to FGF1 in the MBH, we sequenced >79,000 single-cell transcriptomes from the hypothalamus of diabetic Lepob/ob mice obtained on Days 1 and 5 after icv injection of either FGF1 or vehicle. A wide range of transcriptional responses to FGF1 was observed across diverse hypothalamic cell types, with glial cell types responding much more robustly than neurons at both time points. Tanycytes and ependymal cells were the most FGF1-responsive cell type at Day 1, but astrocytes and oligodendrocyte lineage cells subsequently became more responsive. Based on histochemical and ultrastructural evidence of enhanced cell-cell interactions between astrocytes and Agrp neurons (key components of the melanocortin system), we performed a series of studies showing that intact melanocortin signaling is required for the sustained antidiabetic action of FGF1. These data collectively suggest that hypothalamic glial cells are leading targets for the effects of FGF1 and that sustained diabetes remission is dependent on intact melanocortin signaling.
AB - In rodent models of type 2 diabetes (T2D), sustained remission of hyperglycemia can be induced by a single intracerebroventricular (icv) injection of fibroblast growth factor 1 (FGF1), and the mediobasal hypothalamus (MBH) was recently implicated as the brain area responsible for this effect. To better understand the cellular response to FGF1 in the MBH, we sequenced >79,000 single-cell transcriptomes from the hypothalamus of diabetic Lepob/ob mice obtained on Days 1 and 5 after icv injection of either FGF1 or vehicle. A wide range of transcriptional responses to FGF1 was observed across diverse hypothalamic cell types, with glial cell types responding much more robustly than neurons at both time points. Tanycytes and ependymal cells were the most FGF1-responsive cell type at Day 1, but astrocytes and oligodendrocyte lineage cells subsequently became more responsive. Based on histochemical and ultrastructural evidence of enhanced cell-cell interactions between astrocytes and Agrp neurons (key components of the melanocortin system), we performed a series of studies showing that intact melanocortin signaling is required for the sustained antidiabetic action of FGF1. These data collectively suggest that hypothalamic glial cells are leading targets for the effects of FGF1 and that sustained diabetes remission is dependent on intact melanocortin signaling.
U2 - 10.1038/s41467-020-17720-5
DO - 10.1038/s41467-020-17720-5
M3 - Journal article
C2 - 32895383
AN - SCOPUS:85090317380
VL - 11
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 4458
ER -
ID: 249764529