Colleen M. Cebulla

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BACKGROUND Development of retinal detachment models in small animals can be difficult and expensive. Here we create and characterize a novel, cone-rich retinal detachment (RD) model in the chick. METHODOLOGY/PRINCIPAL FINDINGS Retinal detachments were created in chicks between postnatal days 7 and 21 by subretinal injections of either saline (SA) or(More)
Retinitis pigmentosa (RP) is a heterogeneous group of inherited retinal disorders. Diagnosis can be challenging as more than 40 genes are known to cause non-syndromic RP and phenotypic expression can differ significantly resulting in variations in disease severity, age of onset, rate of progression, and clinical findings. We describe the clinical(More)
PURPOSE To evaluate the mechanism and timing of retinal tumor cell death in the LH(BETA)T(AG) mouse model of retinoblastoma after treatment with vascular targeting therapies and conventional therapies (focal chemotherapy and radiation). METHODS For vascular targeting therapy, 12- or 16-week-old mice were treated with a single subconjunctival injection of(More)
PURPOSE The purpose of this study was to evaluate the presence and extent of hypoxia in murine retinoblastoma tumors and the feasibility of targeting hypoxic cells as a novel therapeutic strategy. METHODS Hypoxic and vascular areas in LH(BETA)T(AG) mouse retinal tumors were measured using immunohistochemistry. The glycolytic inhibitor 2-deoxy-d-glucose(More)
PURPOSE The purpose of this study was to evaluate the effects of vessel targeting and chemotherapy agents on inducing hypoxic regions in LH(BETA)T(AG) murine retinal tumors. METHODS. Twelve- and 16-week-old LH(BETA)T(AG) transgenic retinoblastoma mice were treated with periocular injections to the right eye only of saline (n = 42), anecortave acetate (a(More)
PURPOSE Gelatinases, matrix metalloproteinase (MMP)-2, and MMP-9 are known for their importance in angiogenesis and tumor biology. The purpose of this study was to test the hypothesis that anecortave acetate (AA) decreases transgenic retinoblastoma (RB) tumor burden by modulating gelatinase activity. METHODS To assess the possible gelatinase modulation(More)
The eye is a well-suited organ for local delivery of therapeutics to treat vitreous inflammation as well as other pathologic conditions that induce visual loss. Several conditions are particularly challenging to treat and often require chronic courses of therapy. The use of implantable intravitreal devices for drug delivery is an emerging field in the(More)
BACKGROUND To report the tumor, patient, and treatment characteristics of long-term metastatic uveal melanoma survivors. METHODS A non-comparative, retrospective case series of patients from a single institution surviving >24 months with metastatic uveal melanoma (UM). RESULTS Nine patients met the study criteria and their charts were reviewed. The mean(More)
PURPOSE To determine the distribution of tumor-associated macrophages (TAMs) during retinoblastoma tumor development, examine the contribution of bone marrow-derived TAMs in retinoblastoma tumors, and evaluate the supportive role of TAMs in tumor growth in a transgenic retinoblastoma mouse model. METHODS The time course of macrophage infiltration in(More)
Reactive microglia and macrophages are prevalent in damaged retinas. Glucocorticoid signaling is known to suppress inflammation and the reactivity of microglia and macrophages. In the vertebrate retina, the glucocorticoid receptor (GCR) is known to be activated and localized to the nuclei of Müller glia (Gallina et al., 2014). Accordingly, we investigated(More)