Research Overview

Dr. Liegl is interested in the interaction of glucose and lipid metabolism in the context of angiogenesis in retinal pathologies such as diabetic retinopathy and age related macular degeneration. His current research projects also include tumor angiogenesis.

About the Researcher

Dr. Liegl obtained an MD from the Ludwig-Maximilians-University (LMU) in Munich, Germany. He has been interested in eye related diseases early on and did research in the cell biological lab in Munich with an emphasis on the prevention of posterior capsule opacification and retinal diseases such as diabetic retinopathy and age related macular degeneration. He started his residency in ophthalmology at the eye hospital of LMU in January 2011. He is particularly interested in neovascular eye diseases both from a basic research standpoint as well as from a clinical perspective.

He started his postdoctoral fellowship with the support of the german research foundation (DFG) in Dr. Lois Smith's lab.

Researcher Services

Researcher Areas

  • Angiogenesis
  • Diabetic Retinopathy
  • Age Related Macular Degeneration

Research Departments

Researcher Labs


Publications powered by Harvard Catalyst Profiles

  1. Fu Z, Wang Z, Liu CH, Gong Y, Cakir B, Liegl R, Sun Y, Meng SS, Burnim SB, Arellano I, Moran E, Duran R, Poblete A, Cho SS, Talukdar S, Akula JD, Hellström A, Smith LEH. Fibroblast Growth Factor 21 Protects Photoreceptor Function in Type 1 Diabetic Mice. Diabetes. 2018 May; 67(5):974-985. View abstract
  2. Fu Z, Löfqvist CA, Liegl R, Wang Z, Sun Y, Gong Y, Liu CH, Meng SS, Burnim SB, Arellano I, Chouinard MT, Duran R, Poblete A, Cho SS, Akula JD, Kinter M, Ley D, Pupp IH, Talukdar S, Hellström A, Smith LE. Photoreceptor glucose metabolism determines normal retinal vascular growth. EMBO Mol Med. 2018 Jan; 10(1):76-90. View abstract
  4. Fu Z, Liegl R, Wang Z, Gong Y, Liu CH, Sun Y, Cakir B, Burnim SB, Meng SS, Löfqvist C, SanGiovanni JP, Hellström A, Smith LEH. Adiponectin Mediates Dietary Omega-3 Long-Chain Polyunsaturated Fatty Acid Protection Against Choroidal Neovascularization in Mice. Invest Ophthalmol Vis Sci. 2017 08 01; 58(10):3862-3870. View abstract
  5. Gong Y, Fu Z, Liegl R, Chen J, Hellström A, Smith LE. ?-3 and ?-6 long-chain PUFAs and their enzymatic metabolites in neovascular eye diseases. Am J Clin Nutr. 2017 Jul; 106(1):16-26. View abstract
  6. Sun Y, Lin Z, Liu CH, Gong Y, Liegl R, Fredrick TW, Meng SS, Burnim SB, Wang Z, Akula JD, Pu WT, Chen J, Smith LEH. Inflammatory signals from photoreceptor modulate pathological retinal angiogenesis via c-Fos. J Exp Med. 2017 Jun 05; 214(6):1753-1767. View abstract
  7. Sun Y, Liegl R, Gong Y, Bühler A, Cakir B, Meng SS, Burnim SB, Liu CH, Reuer T, Zhang P, Walz JM, Ludwig F, Lange C, Agostini H, Böhringer D, Schlunck G, Smith LEH, Stahl A. Sema3f Protects Against Subretinal Neovascularization In Vivo. EBioMedicine. 2017 Apr; 18:281-287. View abstract
  8. Fu Z, Gong Y, Liegl R, Wang Z, Liu CH, Meng SS, Burnim SB, Saba NJ, Fredrick TW, Morss PC, Hellstrom A, Talukdar S, Smith LE. FGF21 Administration Suppresses Retinal and Choroidal Neovascularization in Mice. Cell Rep. 2017 02 14; 18(7):1606-1613. View abstract
  9. Siedlecki J, Wertheimer C, Wolf A, Liegl R, Priglinger C, Priglinger S, Eibl-Lindner K. Combined VEGF and PDGF inhibition for neovascular AMD: anti-angiogenic properties of axitinib on human endothelial cells and pericytes in vitro. Graefes Arch Clin Exp Ophthalmol. 2017 May; 255(5):963-972. View abstract
  10. Gong Y, Shao Z, Fu Z, Edin ML, Sun Y, Liegl RG, Wang Z, Liu CH, Burnim SB, Meng SS, Lih FB, SanGiovanni JP, Zeldin DC, Hellström A, Smith LEH. Fenofibrate Inhibits Cytochrome P450 Epoxygenase 2C Activity to Suppress Pathological Ocular Angiogenesis. EBioMedicine. 2016 Nov; 13:201-211. View abstract
  11. Liegl R, Löfqvist C, Hellström A, Smith LE. IGF-1 in retinopathy of prematurity, a CNS neurovascular disease. Early Hum Dev. 2016 11; 102:13-19. View abstract
  12. Liegl R, Hellström A, Smith LE. Retinopathy of prematurity: the need for prevention. Eye Brain. 2016; 8:91-102. View abstract
  13. Liegl R, Langer J, Seidensticker F, Reznicek L, Haritoglou C, Ulbig MW, Neubauer AS, Kampik A, Kernt M. Comparative evaluation of combined navigated laser photocoagulation and intravitreal ranibizumab in the treatment of diabetic macular edema. PLoS One. 2014; 9(12):e113981. View abstract
  14. Liegl R, Ulbig MW. Central serous chorioretinopathy. Ophthalmologica. 2014; 232(2):65-76. View abstract
  15. Reznicek L, Dabov S, Kayat B, Liegl R, Kampik A, Ulbig M, Kernt M. Scanning laser 'en face' retinal imaging of epiretinal membranes. Saudi J Ophthalmol. 2014 Apr; 28(2):134-8. View abstract
  16. Wertheimer C, Liegl R, Kernt M, Docheva D, Kampik A, Eibl-Lindner KH. EGFR-blockade with erlotinib reduces EGF and TGF-ß2 expression and the actin-cytoskeleton which influences different aspects of cellular migration in lens epithelial cells. Curr Eye Res. 2014 Oct; 39(10):1000-12. View abstract
  17. Liegl R, Koenig S, Siedlecki J, Haritoglou C, Kampik A, Kernt M. Temsirolimus inhibits proliferation and migration in retinal pigment epithelial and endothelial cells via mTOR inhibition and decreases VEGF and PDGF expression. PLoS One. 2014; 9(2):e88203. View abstract
  18. Liegl R, Wertheimer C, Kernt M, Docheva D, Kampik A, Eibl-Lindner KH. Attenuation of human lens epithelial cell spreading, migration and contraction via downregulation of the PI3K/Akt pathway. Graefes Arch Clin Exp Ophthalmol. 2014 Feb; 252(2):285-92. View abstract
  19. Liegl R, Liegl K, Ceklic L, Haritoglou C, Kampik A, Ulbig MW, Kernt M, Neubauer AS. Nonmydriatic ultra-wide-field scanning laser ophthalmoscopy (Optomap) versus two-field fundus photography in diabetic retinopathy. Ophthalmologica. 2014; 231(1):31-6. View abstract
  20. Eibl-Lindner KH, Liegl R, Wertheimer C, Kampik A. [Intraocular lens as a drug delivery device]. Ophthalmologe. 2013 Oct; 110(10):990-4. View abstract
  21. Reznicek L, Cserhati S, Liegl R, Seidensticker F, Haritoglou C, Wolf A, Kampik A, Ulbig MW, Neubauer A, Kernt M. [Ranibizumab in diabetic macular edema. Evaluation of functional and morphological aspects]. Ophthalmologe. 2013 Jul; 110(7):645-53. View abstract
  22. Reznicek L, Cserhati S, Seidensticker F, Liegl R, Kampik A, Ulbig M, Neubauer AS, Kernt M. Functional and morphological changes in diabetic macular edema over the course of anti-vascular endothelial growth factor treatment. Acta Ophthalmol. 2013 Nov; 91(7):e529-36. View abstract
  23. Thiele S, Liegl RG, König S, Siedlecki J, Langer J, Eibl K, Haritoglou C, Kampik A, Kernt M. [Multikinase inhibitors as a new approach in neovascular age-related macular degeneration (AMD) treatment: in vitro safety evaluations of axitinib, pazopanib and sorafenib for intraocular use]. Klin Monbl Augenheilkd. 2013 Mar; 230(3):247-54. View abstract
  24. Kernt M, Cserhati S, Seidensticker F, Liegl R, Kampik A, Neubauer A, Ulbig MW, Reznicek L. Improvement of diabetic retinopathy with intravitreal Ranibizumab. Diabetes Res Clin Pract. 2013 Apr; 100(1):e11-3. View abstract
  25. Wertheimer C, Liegl R, Kernt M, Mayer W, Docheva D, Kampik A, Eibl-Lindner KH. EGF receptor inhibitor erlotinib as a potential pharmacological prophylaxis for posterior capsule opacification. Graefes Arch Clin Exp Ophthalmol. 2013 Jun; 251(6):1529-40. View abstract
  26. Neubauer AS, Langer J, Liegl R, Haritoglou C, Wolf A, Kozak I, Seidensticker F, Ulbig M, Freeman WR, Kampik A, Kernt M. Navigated macular laser decreases retreatment rate for diabetic macular edema: a comparison with conventional macular laser. Clin Ophthalmol. 2013; 7:121-8. View abstract
  27. Seidensticker F, Reznicek L, Cserhati S, Liegl RG, Langer J, Wolf A, Kampik A, Ulbig M, Haritoglou C, Kernt M. [Improvement of fixation in diabetic macular oedema patients under intravitreal ranibizumab treatment]. Klin Monbl Augenheilkd. 2013 May; 230(5):524-9. View abstract
  28. Kernt M, Cheuteu R, Liegl RG, Seidensticker F, Cserhati S, Hirneiss C, Haritoglou C, Kampik A, Ulbig M, Neubauer AS. [Navigated focal retinal laser therapy using the NAVILAS® system for diabetic macula edema]. Ophthalmologe. 2012 Jul; 109(7):692-8. View abstract
  29. Kernt M, Cheuteu RE, Cserhati S, Seidensticker F, Liegl RG, Lang J, Haritoglou C, Kampik A, Ulbig MW, Neubauer AS. Pain and accuracy of focal laser treatment for diabetic macular edema using a retinal navigated laser (Navilas). Clin Ophthalmol. 2012; 6:289-96. View abstract
  30. Kernt M, Thiele S, Liegl RG, Kernt B, Eibl K, Haritoglou C, Ulbig MW, Kampik A. Axitinib modulates hypoxia-induced blood-retina barrier permeability and expression of growth factors. Growth Factors. 2012 Feb; 30(1):49-61. View abstract
  31. Kernt M, Neubauer AS, Liegl RG, Hirneiss C, Alge CS, Wolf A, Ulbig MW, Kampik A. Sorafenib prevents human retinal pigment epithelium cells from light-induced overexpression of VEGF, PDGF and PlGF. Br J Ophthalmol. 2010 Nov; 94(11):1533-9. View abstract
  32. Liegl R, Kernt M, Obholzer K, Wolf A, Schumann R, Haritoglou C, Kampik A, Eibl-Lindner KH. [Alkylphosphocholines inhibit lens epithelial cell proliferation and attachment]. Ophthalmologe. 2010 Oct; 107(10):937-40. View abstract
  33. Kernt M, Hirneiss C, Neubauer AS, Liegl RG, Eibl KH, Wolf A, de Kaspar H, Ulbig MW, Kampik A. [Intracameral moxifloxacin: a safe option for endophthalmitis prophylaxis? In vitro safety profile for intraocular application]. Ophthalmologe. 2010 Aug; 107(8):720-7. View abstract
  34. Kernt M, Hirneiss C, Wolf A, Liegl R, Rueping J, Neubauer A, Alge C, Ulbig M, Gandorfer A, Kampik A, Haritoglou C. Indocyanine green increases light-induced oxidative stress, senescence, and matrix metalloproteinases 1 and 3 in human RPE cells. Acta Ophthalmol. 2012 Sep; 90(6):571-9. View abstract
  35. Kernt M, Liegl RG, Rueping J, Neubauer AS, Haritoglou C, Lackerbauer CA, Eibl KH, Ulbig MW, Kampik A. Sorafenib protects human optic nerve head astrocytes from light-induced overexpression of vascular endothelial growth factor, platelet-derived growth factor, and placenta growth factor. Growth Factors. 2010 Jun; 28(3):211-20. View abstract
  36. Haritoglou C, Priglinger S, Liegl R, May CA, Eibl K, Thaler S, Kampik A, Schuettauf F. Experimental evaluation of aniline and methyl blue for intraocular surgery. Retina. 2009 Oct; 29(9):1266-73. View abstract
  37. Kernt M, Neubauer AS, Liegl RG, Lackerbauer CA, Eibl KH, Alge CS, Ulbig MW, A AK. Intracameral moxifloxacin: in vitro safety on human ocular cells. Cornea. 2009 Jun; 28(5):553-61. View abstract
  38. Eibl KH, Liegl R, Kernt M, Priglinger S, Kampik A. Alkylphosphocholines as a potential pharmacologic prophylaxis for posterior capsule opacification. J Cataract Refract Surg. 2009 May; 35(5):900-5. View abstract
  39. Kernt M, Neubauer AS, Liegl R, Eibl KH, Alge CS, Lackerbauer CA, Ulbig MW, Kampik A. Cytoprotective effects of a blue light-filtering intraocular lens on human retinal pigment epithelium by reducing phototoxic effects on vascular endothelial growth factor-alpha, Bax, and Bcl-2 expression. J Cataract Refract Surg. 2009 Feb; 35(2):354-62. View abstract