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Liu, Xiaorong

Xiaorong Liu

Primary Appointment

Biology

Contact Information

Email: xl8n@virginia.edu
Website: http://http://bio.as.virginia.edu/people/xl8n

Research Interests

Developing novel neuroprotection strategies to preserve vision in glaucoma

Research Description

I have been interested in understanding the regulation and misregulation of retinal structures and functions during normal development and in diseased conditions since my PhD study. I started my own laboratory in 2008 as a research assistant professor in Neurobiology and Physiology at Northwestern University, mainly working on visual system development and function. I started my tenure-track position in Ophthalmology in 2011, around which time I expanded my research interests to investigating how visual system degenerates in mouse models of experimental glaucoma. Glaucoma is a major cause of blindness characterized by progressive retinal ganglion cell (RGC) death and vision loss. Much remains to be investigated how RGCs degenerate and die with glaucoma progression. Our research on RGC normal development and function provides unique and innovative tools to characterize RGC degeneration in glaucoma, which is much needed to advance the field. In my laboratory, we have established mouse models of experimental glaucoma to study RGC death and its underlying molecular mechanisms. We combine mouse genetics, in vivo imaging, molecular biology, and physiology techniques to study the structural and functional development of RGCs as well as how RGCs degenerate in glaucoma. Moreover, we are also interested in developing novel neuroprotection strategies to preserve vision in glaucoma. For more information, please visit my website.

Selected Publications

Puyang Z, Feng L, Chen H, Liang P, Troy JB, Liu X, Retinal Ganglion Cell Loss is Delayed Following Optic Nerve Crush in NLRP3 Knockout Mice., 2016; Scientific reports. 6() 20998 PMID: 26893104 | PMCID: PMC4759563

Yi J, Puyang Z, Feng L, Duan L, Liang P, Backman V, Liu X, Zhang HF, Optical Detection of Early Damage in Retinal Ganglion Cells in a Mouse Model of Partial Optic Nerve Crush Injury., 2016; Investigative ophthalmology & visual science. 57(13) 5665-5671 PMID: 27784071 | PMCID: PMC5089219

Du J., Feng L., Zaitsev E., Je H. S., Liu X. W., Lu B., Regulation of TrkB receptor tyrosine kinase and its internalization by neuronal activity and Ca2+ influx, ; J Cell Biol. 163(2) 385-95 |

Feng L., Chen H., Yi J., Troy J. B., Zhang H. F., Liu X., Long-Term Protection of Retinal Ganglion Cells and Visual Function by Brain-Derived Neurotrophic Factor in Mice With Ocular Hypertension, ; Invest Ophthalmol Vis Sci. 57(8) 3793-802 |

Cang J., Renteria R. C., Kaneko M., Liu X., Copenhagen D. R., Stryker M. P., Development of precise maps in visual cortex requires patterned spontaneous activity in the retina, ; Neuron. 48(5) 797-809 |

Feng L., Puyang Z., Chen H., Liang P., Troy J. B., Liu X., Overexpression of Brain-Derived Neurotrophic Factor Protects Large Retinal Ganglion Cells After Optic Nerve Crush in Mice, ; eNeuro. 4(1) |

Liu X., Grishanin R. N., Tolwani R. J., Renteria R. C., Xu B., Reichardt L. F., Copenhagen D. R., Brain-derived neurotrophic factor and TrkB modulate visual experience-dependent refinement of neuronal pathways in retina, ; J Neurosci. 27(27) 7256-67 |

Puyang Z., Gong H. Q., He S. G., Troy J. B., Liu X., Liang P. J., Different functional susceptibilities of mouse retinal ganglion cell subtypes to optic nerve crush injury, ; Exp Eye Res. 162() 97-103 |

Liu X., Robinson M. L., Schreiber A. M., Wu V., Lavail M. M., Cang J., Copenhagen D. R., Regulation of neonatal development of retinal ganglion cell dendrites by neurotrophin-3 overexpression, ; J Comp Neurol. 514(5) 449-58 |

Shi X., Barchini J., Ledesma H. A., Koren D., Jin Y., Liu X., Wei W., Cang J., Retinal origin of direction selectivity in the superior colliculus, ; Nat Neurosci. 20(4) 550-558 |

Wang L., Rangarajan K. V., Lawhn-Heath C. A., Sarnaik R., Wang B. S., Liu X., Cang J., Direction-specific disruption of subcortical visual behavior and receptive fields in mice lacking the beta2 subunit of nicotinic acetylcholine receptor, ; J Neurosci. 29(41) 12909-18 |

Cantrell D. R., Cang J., Troy J. B., Liu X., Non-centered spike-triggered covariance analysis reveals neurotrophin-3 as a developmental regulator of receptive field properties of ON-OFF retinal ganglion cells, ; PLoS Comput Biol. 6(10) e1000967 |

Wang L., Sarnaik R., Rangarajan K., Liu X., Cang J., Visual receptive field properties of neurons in the superficial superior colliculus of the mouse, ; J Neurosci. 30(49) 16573-84 |

Rangarajan K. V., Lawhn-Heath C., Feng L., Kim T. S., Cang J., Liu X., Detection of visual deficits in aging DBA/2J mice by two behavioral assays, ; Curr Eye Res. 36(5) 481-91 |

Yoshida M., Feng L., Grimbert F., Rangarajan K. V., Buggele W., Copenhagen D. R., Cang J., Liu X., Overexpression of neurotrophin-3 stimulates a second wave of dopaminergic amacrine cell genesis after birth in the mouse retina, ; J Neurosci. 31(35) 12663-73 |

Feng L.,, Chen H.,, Suyeoka G.,, Liu X., A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects, ; Journal of Visualized Experiments. 0() |

Feng L., Zhao Y., Yoshida M., Chen H., Yang J. F., Kim T. S., Cang J., Troy J. B., Liu X., Sustained ocular hypertension induces dendritic degeneration of mouse retinal ganglion cells that depends on cell type and location, ; Invest Ophthalmol Vis Sci. 54(2) 1106-17 |

Zhao X., Chen H., Liu X., Cang J., Orientation-selective responses in the mouse lateral geniculate nucleus, ; J Neurosci. 33(31) 12751-63 |

Chen H., Liu X., Tian N., Subtype-dependent postnatal development of direction- and orientation-selective retinal ganglion cells in mice, ; J Neurophysiol. 112(9) 2092-101 |

Thomson B. R., Heinen S., Jeansson M., Ghosh A. K., Fatima A., Sung H. K., Onay T., Chen H., Yamaguchi S., Economides A. N., Flenniken A., Gale N. W., Hong Y. K., Fawzi A., Liu X., Kume T., Quaggin S. E., A lymphatic defect causes ocular hypertension and glaucoma in mice, ; J Clin Invest. 124(10) 4320-4 |

Liu X., Green C. B., A novel promoter element, photoreceptor conserved element II, directs photoreceptor-specific expression of nocturnin in Xenopus laevis, ; J Biol Chem. 276(18) 15146-54 |

Chen H., Zhao Y., Liu M., Feng L., Puyang Z., Yi J., Liang P., Zhang H. F., Cang J., Troy J. B., Liu X., Progressive degeneration of retinal and superior collicular functions in mice with sustained ocular hypertension, ; Invest Ophthalmol Vis Sci. 56(3) 1971-84 |

Liu X., Green C. B., Circadian regulation of nocturnin transcription by phosphorylated CREB in Xenopus retinal photoreceptor cells, ; Mol Cell Biol. 22(21) 7501-11 |

Puyang Z., Chen H., Liu X., Subtype-dependent Morphological and Functional Degeneration of Retinal Ganglion Cells in Mouse Models of Experimental Glaucoma, ; J Nat Sci. 1(5) e103 |