Ophthalmology Commons^™

Phosphorylation Of Prb: Mechanism For Rb Pathway Inactivation In Mycn-Amplified Retinoblastoma., Kathryn G. Ewens, Tricia R. Bhatti, Kimberly A. Moran, Jennifer Richards-Yutz, Carol L. Shields, Ralph C. Eagle Jr., Arupa Ganguly

Wills Eye Hospital Papers

A small, but unique subgroup of retinoblastoma has been identified with no detectable mutation in the retinoblastoma gene (RB1) and with high levels of MYCN gene amplification. This manuscript investigated alternate pathways of inactivating pRb, the encoded protein in these tumors. We analyzed the mutation status of the RB1 gene and MYCN copy number in a series of 245 unilateral retinoblastomas, and the phosphorylation status of pRb in a subset of five tumors using immunohistochemistry. There were 203 tumors with two mutations in RB1 (RB1(-/-) , 83%), 29 with one (RB1(+/-) , 12%) and 13 with no detectable mutations (RB1(+/+) …

Advancing Vibrational Spectroscopy For Cellular And Sub Cellular Analysis: Raman Spectroscopy As An In Vitro Chemotherapeutic Screeening And Assessment Protocol, Zeineb Farhane

Doctoral

Vibrational spectroscopy, including Raman micro-spectroscopy, has attracted considerable attention over the last few years, as a powerful, non-invasive tool for clinical applications, especially in cancer diagnosis, in vivo and ex vivo. As a molecular fingerprinting technique with optical resolution, Raman micro-spectroscopy is able to monitor biochemical processes, drug uptake, efficacy and mode of action and mechanisms of interaction of chemotherapeutic drugs at a subcellular level. In vitro applications may be more strategically achievable, and can help guide drug design and discovery, and eventually evaluate To this end, different lung cell lines were used and Raman micro-spectroscopy was coupled to valuable …

Choroidal Metastasis From Leiomyosarcoma In Two Cases, Eric Feinstein, Swathi Kaliki, Carol L Shields, Hormoz Ehya, Jerry A Shields

Wills Eye Hospital Papers

Leiomyosarcoma is a malignant tumor of mesenchymal cells and is the most common soft-tissue sarcoma. Leiomyosarcoma is a notably rare tumor in the ophthalmic region and can be of primary, secondary or metastatic origin. To the best of our knowledge, there has only been one published case of leiomyosarcoma metastasis to the choroid. In this case study, we report two cases of primary leiomyosarcoma with metastasis to the choroid of the eye. Both cases displayed systemic metastasis and showed response to high dose plaque radiotherapy. Despite its prevalence as the leading form of sarcoma, leiomyosarcoma rarely metastasizes to the ocular …

Breast Cancer Medications And Vision: Effects Of Treatments For Early-Stage Disease, Alvin Eisner, Shiuh-Wen Luoh

Community Health Faculty Publications and Presentations

This review concerns the effects on vision and the eye of medications prescribed at three phases of treatment for women with early-stage breast cancer (BC): (1) adjuvant cytotoxic chemotherapy, (2) adjuvant endocrine therapy, and (3) symptomatic relief. The most common side effects of cytotoxic chemotherapy are epiphora and ocular surface irritation, which can be caused by any of several different regimens. Most notably, the taxane docetaxel can lead to epiphora by inducing canalicular stenosis. The selective-estrogen-receptor-modulator (SERM) tamoxifen, long the gold-standard adjuvant-endocrine-therapy for women with hormone-receptor-positive BC, increases the risk of posterior subcapsular cataract. Tamoxifen also affects the optic nerve …

Identifying Factors Associated With Falls In Postmenopausal Breast Cancer Survivors: A Multi-Disciplinary Approach, Kerri M. Winters-Stone, Britta Torgrimson, Fay Horak, Alvin Eisner, Lillian Nail, Micahel C. Leo, Steve Chui, Shiuh-Wen Luoh

Community Health Faculty Publications and Presentations

Objective—To identify neuromuscular, balance and vision factors that contribute to falls in recently treated breast cancer survivors (BCS) and explore links between fall risk factors and cancer treatment

Design—Case-control plus prospective observation

Setting—Comprehensive cancer center

Participants—BCS within two years chemotherapy completion and/or on adjuvant endocrine therapy (N=59; mean age: 58 yrs)

Intervention—not applicable

Main outcome measures—Objective measures of postural control, vision and neuromuscular function included 1) a sensory organization test (SOT), 2) a visual assessment battery, 3) muscle mass by DXA, and 4) neuromuscular function with strength by repetition maximum, power by timed stair …

Proptosis Of Eye: An Atypical Presentation Of Prostatic Malignancy., Amna Amjad, Asif Husain Osmani, Ghulam H

Section of Pulmonary & Critical Care

Orbital metastasis is a rare occurrence found only in about 3 - 10% of all prostate cancers. A 72 years male presented with proptosis of the left eye associated with pain, blurred vision and frequent headaches for the past 8 months. Past medical history had symptoms of bladder outflow obstruction for 3 years. MRI brain and orbit with contrast was consistent with a large soft tissue mass in the left frontal region. The mass was surgically excised in order to achieve palliation. Histopathology revealed poorly differentiated malignant neoplasm with immunohistochemistry favoring metastatic prostate carcinoma. Postoperative radiotherapy was administered with a …