Mineral metabolism:

• Regulation of FGF23 and Klotho and significance for health, aging, and age-related disease

• Regulation of phosphate transport

Blood pressure and extracellular volume regulation

PI3K signaling

• Physiological and pathophysiological role of insulin-dependent PI3 kinase signaling

Regulation and relevance of suicidal erythrocyte death

Regulation of electrogenic membrane transport

• Regulation of ion channels and electrogenic secondary/tertiary active membrane transporters

• Regulation and significance of store-operated calcium entry

                                                                    Selected Publications:

Short-term fasting of mice elevates circulating fibroblast growth factor 23 (FGF23).
Feger M, Alber J, Strotmann J, Grund A, Leifheit-Nestler M, Haffner D, Föller M. Acta Physiol (Oxf). 2023 Dec;239(4):e14049.

Endothelin receptor B-deficient mice are protected from high-fat diet-induced metabolic syndrome.
Feger M, Meier L, Strotmann J, Hoene M, Vogt J, Wisser A, Hirschle S, Kheim MJ, Hocher B, Weigert C, Föller M. Mol Metab. 2024 Feb;80:101868.

Feger M, Ewendt F, Strotmann J, Schaffler H, Kempe-Teufel D, Glosse P, Stangl GI, Foller M. Glucocorticoids dexamethasone and prednisolone suppress fibroblast growth factor 23 (FGF23). J Mol Med (Berl). 2021 May;99(5):699-711.

Feger M, Ewendt F, Menzel M, Hocher B, Foller M. Endothelin receptor B controls the production of fibroblast growth factor 23. FASEB J. 2020 May;34(5):6262-6270

Glosse P, Feger M, Mutig K, Chen H, Hirche F, Hasan AA, Gaballah M, Hocher B, Lang F, Foller M. AMP-dependent kinase (AMPK) is a regulator of fibroblast growth factor 23 (FGF23) production. Kidney Int 2018 Sep;94(3):491-501

Bar L, Feger M, Fajol A, Klotz LO, Zeng S, Lang F, Hocher B, Foller M. Insulin suppresses the production of fibroblast growth factor 23 (FGF23). Proc Natl Acad Sci U S A. 2018 May 29;115(22):5804-5809

Chen H, Fajol A, Hoene M, Zhang B, Schleicher ED, Lin Y, Calaminus C, Pichler BJ, Weigert C, Häring HU, Lang F, Foller M. PI3K-resistant GSK3 controls adiponectin formation and protects from metabolic syndrome. Proc Natl Acad Sci U S A. 2016 May 7;113(20):5754-9.

Fajol A, Chen H, Umbach AT, Quarles LD, Lang F, Foller M. Enhanced FGF23 production in mice expressing PI3 kinase-insensitive GSK3 is normalized by β-blocker treatment. FASEB J 2016 Feb;30(2):994-1001

Umbach AT, Zhang B, Daniel C, Fajol A, Velic A, Hosseinzadeh Z, Bhavsar SK, Bock CT, Kandolf R, Pichler BJ, Amann K, Foller M, Lang F. JAK3 sensitivity of renal 25hydroxyvitamin D 1α-hydroxylase expression, 1,25(OH)2D3 formation, and phosphate metabolism. Kidney Int 2015 Apr;87(4):728-37

Lang E, Gatidis S, Freise NF, Bock H, Kubitz R, Lauermann C, Orth HM, Klindt C, Schuirer M, Keitel V, Reich M, Liu G, Schmidt S, Xu HC, Qadri SM, Herebian D, Mayatepek E, Gulbins E, Lang F, Häussinger D, Lang KS, Foller M, Lang PA. Conjugated bilirubin triggers anemia by inducing erythrocyte death. Hepatology 2014 Jan;61(1):275-84

Lang F, Abed M, Lang E, Foller M. Oxidative stress and suicidal erythrocyte death. Antioxid Redox Signal 2014 Jul 1;21(1):138-53.

Foller M, Harris IS, Elia A, John R, Lang F, Kavanagh TJ, Mak TW. Functional significance of glutamate-cysteine ligase modifier (GCLM) for erythrocyte survival in vitro and in vivo. Cell Death Differ 2013 Oct;20(10):1350-8.

Marx R, Simmers JL, Lin B, Finanger Hedderick E, Marr TG, Lin BM, Hourde C, Leinwand LA, Kuhl D, Foller M, Vogelsang S, Hernandez-Diaz I, Vaughan DK, Alvarez de la Rosa D, Lang F, Cohn RD: Activation of serum/glucocorticoid-induced kinase 1 (SGK1) is important to maintain skeletal muscle homeostasis and prevent atrophy. EMBO Mol Med 2013, 5(1):80-91.

Foller M, Hermann A, Gu S, Alesutan I, Qadri SM, Borst O, Schmidt EM, Schiele F, vom Hagen JM, Saft C, Schols L, Lerche H, Stournaras C, Storch A, Lang F: Chorein-sensitive polymerization of cortical actin and suicidal cell death in chorea-acanthocytosis. FASEB J 2012, 26(4):1526-1534.

Foller M, Jaumann M, Dettling J, Saxena A, Pakladok T, Munoz C, Ruth P, Sopjani M, Seebohm G, Ruttiger L, Knipper M, Lang F: AMP-activated protein kinase in BK-channel regulation and protection against hearing loss following acoustic overstimulation. FASEB J 2012, 26(10):4243-4253.

Salker MS, Christian M, Steel JH, Nautiyal J, Lavery S, Trew G, Webster Z, Al-Sabbagh M, Puchchakayala G, Foller M, Landles C, Sharkey AM, Quenby S, Aplin JD, Regan L, Lang F, Brosens JJ. Deregulation of the serum- and glucocorticoid-inducible kinase SGK1 in the endometrium causes reproductive failure Nat Med. 2011 Oct 16;17(11):1509-13.

Foller M, Kempe DS, Boini KM, Pathare G, Siraskar B, Capuano P, Alesutan I, Sopjani M, Stange G, Mohebbi N, Bhandaru M, Ackermann TF, Judenhofer MS, Pichler BJ, Biber J, Wagner CA, Lang F. PKB/SGK-resistant GSK3 enhances phosphaturia and calciuria. J Am Soc Nephrol 2011 May;22(5):873-80.

Bhandaru M, Kempe DS, Rotte A, Capuano P, Pathare G, Sopjani M, Alesutan I, Tyan L, Huang DY, Siraskar B, Judenhofer MS, Stange G, Pichler BJ, Biber J, Quintanilla-Martinez L, Wagner CA, Pearce D, Foller M, Lang F: Decreased bone density and increased phosphaturia in gene-targeted mice lacking functional serum- and glucocorticoid-inducible kinase 3. Kidney Int 2011, 80(1):61-67.

Foller M, Mahmud H, Qadri SM, Gu S, Braun M, Bobbala D, Hocher B, Lang F: Endothelin B receptor stimulation inhibits suicidal erythrocyte death. FASEB J 2010, 24(9):3351-3359.

Foller M, Sopjani M, Koka S, Gu S, Mahmud H, Wang K, Floride E, Schleicher E, Schulz E, Munzel T, Lang F: Regulation of erythrocyte survival by AMP-activated protein kinase. FASEB J 2009, 23(4):1072-1080.

Foller M, Feil S, Ghoreschi K, Koka S, Gerling A, Thunemann M, Hofmann F, Schuler B, Vogel J, Pichler B, Kasinathan RS, Nicolay JP, Huber SM, Lang F, Feil R. Anemia and splenomegaly in cGKI-deficient mice. Proc Natl Acad Sci U S A 2008 May 6;105(18):6771-6.

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