Abstract
Metabolism is adapted to meet energetic needs. Based on the amount of ATP required to maintain plasma membrane potential, photoreceptor energy demands must be high. The available evidence suggests that photoreceptors primarily generate metabolic energy through aerobic glycolysis, though this evidence is based primarily on protein expression and not measurement of metabolic flux. Aerobic glycolysis can be validated by measuring flux of glucose to lactate. Aerobic glycolysis is also inefficient and thus an unexpected adaptation for photoreceptors to make. We measured metabolic rates to determine the energy-generating pathways that support photoreceptor metabolism. We found that photoreceptors indeed perform aerobic glycolysis and this is associated with mitochondrial uncoupling.
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Abbreviations
- ATP:
-
Adenosine triphosphate
- GC-MS:
-
Gas chromatography-mass spectrometry
- GCR:
-
Glucose consumption rate
- HK2:
-
Hexokinase 2
- LPR:
-
Lactate production rate
- NADH:
-
Nicotinamide adenine dinucleotide
- NADPH:
-
Nicotinamide adenine dinucleotide phosphate
- OCR:
-
Oxygen consumption rate
- PKM2:
-
Pyruvate kinase M2
References
Warburg O. The metabolism of carcinoma cells. J Cancer Res. 1925;9(1):148–63.
Winkler BS. Glycolytic and oxidative metabolism in relation to retinal function. J Gen Physiol. 1981;77(6):667–92.
Okawa H, Sampath AP, Laughlin SB, Fain GL. ATP consumption by mammalian rod photoreceptors in darkness and in light. Curr Biol. 2008;18(24):1917–21.
Ames A, Li Y-Y, Heher EC, Kimble CR. Energy metabolism of rabbit retina as related to function: high cost of Na+ transport. J Neurosci. 1992;12(3):940–53.
Lindsay KJ, Du J, Sloat SR, Contreras L, Linton JD, Turner SJ, et al. Pyruvate kinase and aspartate-glutamate carrier distributions reveal key metabolic links between neurons and glia in retina. Proc Natl Acad Sci U S A. 2014;111(43):15579.
Ferguson EC, Rathmell JC. New roles for pyruvate kinase M2: working out the Warburg effect. Trends Biochem Sci. 2008;33(8):359–62.
Wolf A, Agnihotri S, Micallef J, Mukherjee J, Sabha N, Cairns R, et al. Hexokinase 2 is a key mediator of aerobic glycolysis and promotes tumor growth in human glioblastoma multiforme. J Exp Med. 2011;208(2):313–26.
Petit L, Ma S, Cipi J, Cheng S-Y, Zieger M, Hay N, et al. Aerobic glycolysis is essential for normal rod function and controls secondary cone death in retinitis pigmentosa. Cell Rep. 2018;23(9):2629.
Chinchore Y, Begaj T, Wu D, Drokhlyansky E, Cepko C. Glycolytic reliance promotes anabolism in photoreceptors. elife. 2017;6:e25946.
Singh RK, Kolandaivelu S, Ramamurthy V. Early alteration of retinal neurons in Aipl1−/− animals. Invest Ophthalmol Vis Sci. 2014;55(5):3081–92.
Lowry OH, Passonneau JV. A flexible system of enzymatic analysis. Elsevier; 1972.
Millard P, Delépine B, Guionnet M, Heuillet M, Bellvert F, Létisse F. IsoCor: isotope correction for high-resolution MS labeling experiments. Bioinformatics. 2019;35(21):4484–7.
Neal A, Rountree A, Philips C, Kavanagh T, Williams DP, Newham P, et al. Quantification of low-level drug effects using real-time, in vitro measurement of oxygen consumption rate. Toxicol Sci. 2015;148(2):594–602.
Lewis CA, Parker SJ, Fiske BP, Mccloskey D, Gui DY, Green CR, et al. Article tracing compartmentalized NADPH metabolism in the cytosol and mitochondria of mammalian cells. Mol Cell. 2014;55:253–63.
Pasteur L. Expériences et vues nouvelles sur la nature des fermentations. Comptes rendus l’Académie des Sci. 1861;52:1260–4.
Brand M, Nicholls D. Assessing mitochondrial dysfunction in cells. Biochem J. 2011;435(2):297–312.
Du J, Rountree A, Cleghorn WM, Contreras L, Lindsay KJ, Sadilek M, et al. Phototransduction influences metabolic flux and nucleotide metabolism in mouse retina. J Biol Chem. 2016;291(9):4698–710.
Bisbach CM, Hass DT, Robbings BM, Rountree AM, Sadilek M, Sweet IR, et al. Succinate can shuttle reducing power from the hypoxic retina to the O2-rich pigment epithelium. Cell Rep. 2020;31(5):107606.
Roesch K, Stadler MB, Cepko CL. Gene expression changes within Müller glial cells in retinitis pigmentosa. Mol Vis. 2012;18:1197.
Scholz R, Sobotka M, Caramoy A, Stempfl T, Moehle C, Langmann T. Minocycline counter-regulates pro-inflammatory microglia responses in the retina and protects from degeneration. J Neuroinflammation. 2015;12(1):1–14.
Wang L, Pavlou S, Du X, Bhuckory M, Xu H, Chen M. Glucose transporter 1 critically controls microglial activation through facilitating glycolysis. Mol Neurodegener. 2019;14(1):1–15.
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Hass, D.T., Bisbach, C.M., Sadilek, M., Sweet, I.R., Hurley, J.B. (2023). Aerobic Glycolysis in Photoreceptors Supports Energy Demand in the Absence of Mitochondrial Coupling. In: Ash, J.D., Pierce, E., Anderson, R.E., Bowes Rickman, C., Hollyfield, J.G., Grimm, C. (eds) Retinal Degenerative Diseases XIX. Advances in Experimental Medicine and Biology, vol 1415. Springer, Cham. https://doi.org/10.1007/978-3-031-27681-1_64
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DOI: https://doi.org/10.1007/978-3-031-27681-1_64
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