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Retinoblastoma metastasis

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https://www.readbyqxmd.com/read/28927086/quercetin-inhibits-angiogenesis-mediated-human-retinoblastoma-growth-by-targeting-vascular-endothelial-growth-factor-receptor
#1
Wei Song, Xiaofei Zhao, Jiarui Xu, Han Zhang
Retinoblastoma (RB) is the most common malignant intraocular cancer in teenagers, occurrence of which depends on the mutation of multiple genes. Among all the signaling pathways involved in the oncogenesis of RB, the process of angiogenesis has been demonstrated to be associated with the local invasive growth and metastasis of this cancer type. Quercetin (Que) is a typical flavonoid and has been reported to inhibit angiogenesis in various types of tumors. In the present study, the effect of Que on RB cells and angiogenesis of RB was evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924151/dna-methylomes-reveal-biological-networks-involved-in-human-eye-development-functions-and-associated-disorders
#2
María Berdasco, Antonio Gómez, Marcos J Rubio, Jaume Català-Mora, Vicente Zanón-Moreno, Miguel Lopez, Cristina Hernández, Shigeo Yoshida, Takahito Nakama, Keijiro Ishikawa, Tatsuro Ishibashi, Amina M Boubekeur, Lotfi Louhibi, Miguel A Pujana, Sergi Sayols, Fernando Setien, Dolores Corella, Carmen de Torres, Andreu Parareda, Jaume Mora, Ling Zhao, Kang Zhang, Matilde E Lleonart, Javier Alonso, Rafael Simó, Josep M Caminal, Manel Esteller
This work provides a comprehensive CpG methylation landscape of the different layers of the human eye that unveils the gene networks associated with their biological functions and how these are disrupted in common visual disorders. Herein, we firstly determined the role of CpG methylation in the regulation of ocular tissue-specification and described hypermethylation of retinal transcription factors (i.e., PAX6, RAX, SIX6) in a tissue-dependent manner. Second, we have characterized the DNA methylome of visual disorders linked to internal and external environmental factors...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28903151/anterior-chamber-invasion-in-retinoblastoma-not-an-indication-for-adjuvant-chemotherapy
#3
Kummamuri V Sreelakshmi, Anita Chandra, Subramanian Krishnakumar, Viswanathan Natarajan, Vikas Khetan
Purpose: In retinoblastoma, adjuvant chemotherapy after enucleation is given in eyes with histopathological high-risk features (HRFs) to reduced mortality. Anterior chamber seeds (AC seeds) on histopathological evaluation are a contentious finding. This study attempts to determine the effect of AC seeds on the survival rate. Methods: This is a retrospective case record review. Eyes were divided into four groups: those with neither AC seeds nor HRFs, those with only HRFs, those with only AC seeds, and those with both HRFs and AC seeds...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28868287/intracameral-chemotherapy-melphalan-for-aqueous-seeding-in-retinoblastoma-bicameral-injection-technique-and-related-toxicity-in-a-pilot-case-study
#4
Francis L Munier, Marie-Claire Gaillard, Sarah Decembrini, Massimo Bongiovanni, Maja Beck-Popovic
BACKGROUND: The anterior chamber has been shown by pharmacokinetic studies to represent a sanctuary never achieving a tumoricidal dose with the present administration routes, such as systemic, intra-arterial, or intravitreal injections. METHOD: A novel intracameral chemotherapy technique is described to control aqueous seeding in a pilot unilateral group E retinoblastoma case with primary aqueous seeding. Anterior segment toxicity was carefully monitored. RESULTS: Control of the retinal tumor and vitreous seeding was achieved by intra-arterial and intravitreal chemotherapies...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28834944/high-risk-intraocular-retinoblastoma-comparison-between-asian-indians-and-americans-from-two-major-referral-centers
#5
Swathi Kaliki, Carol L Shields, Ralph C Eagle, Sadiya Iram, Jerry A Shields
PURPOSE: To identify the differences in the clinical and histopathologic features in eyes with advanced intraocular retinoblastoma in a developing country (India) versus a developed country (USA). METHODS: Retrospective study. RESULTS: Of 524 patients with retinoblastoma who underwent primary enucleation, 331 were from India, and 193 were from the USA. Asian Indians were older at presentation (35 months vs. 29 months; P = 0.02), had thicker tumors (13...
August 22, 2017: Retina
https://www.readbyqxmd.com/read/28693273/overexpression-of-mir-183-and-mir-494-promotes-proliferation-and-migration-in-human-breast-cancer-cell-lines
#6
Taciane Macedo, Renato J Silva-Oliveira, Viviane A O Silva, Daniel O Vidal, Adriane F Evangelista, Marcia M C Marques
Breast cancer (BC) is a leading cause of cancer-associated mortality in females worldwide. MicroRNAs (miRNAs or miRs), a type of non-coding RNA, have been reported to be important in the regulation of BC onset and progression. Several studies have implicated the role of miR-183 and miR-494 in different types of cancer. However, the biological functions of these miRNAs in BC remain largely unknown. In the present study, the expression of both miRNAs was assessed in the MDA-MB-231 and MDA-MB-468 BC cell lines...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28689850/mir-215-promotes-cell-migration-and-invasion-of-gastric-cancer-by-targeting-retinoblastoma-tumor-suppressor-gene-1
#7
Zhanfeng Chen, Kunpeng Liu, Li Li, Yan Chen, Shouqin Du
BACKGROUND: Gastric cancer (GC) is one of the most common malignant tumor and has high mortality worldwide. microRNAs (miRNAs) play critical roles in carcinogenesis. Previous studied showed that miR-215 was involved in tumorigenesis and progression. This study was designed to clarify the biological function of miR-215 in GC. METHODS: qRT-PCR was used to detect the miR-215 expression in GC tissues and 6 human GC cell lines (AGS, SGC-7901, NCI-N87, GES-1, MKN-45 and BGC-823) as well...
August 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28633655/inhibition-of-mmp-2-and-mmp-9-decreases-cellular-migration-and-angiogenesis-in-in-vitro-models-of-retinoblastoma
#8
Anderson H Webb, Bradley T Gao, Zachary K Goldsmith, Andrew S Irvine, Nabil Saleh, Ryan P Lee, Justin B Lendermon, Rajini Bheemreddy, Qiuhua Zhang, Rachel C Brennan, Dianna Johnson, Jena J Steinle, Matthew W Wilson, Vanessa M Morales-Tirado
BACKGROUND: Retinoblastoma (Rb) is the most common primary intraocular tumor in children. Local treatment of the intraocular disease is usually effective if diagnosed early; however advanced Rb can metastasize through routes that involve invasion of the choroid, sclera and optic nerve or more broadly via the ocular vasculature. Metastatic Rb patients have very high mortality rates. While current therapy for Rb is directed toward blocking tumor cell division and tumor growth, there are no specific treatments targeted to block Rb metastasis...
June 20, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28550678/knockdown-of-long-noncoding-rna-lncrna-metastasis-associated-lung-adenocarcinoma-transcript-1-malat1-inhibits-proliferation-migration-and-invasion-and-promoted-apoptosis-by-targeting-mir-124-in-retinoblastoma
#9
Shujun Liu, Guigang Yan, Junfu Zhang, Lianzhi Yu
Evidence suggests that the long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1)is upregulated in cancer tissues and its elevated expression is associated with hyper-proliferation. However, the underlying mechanisms regarding the role of MALAT1 in retinoblastoma (RB) remains unclear. This study aimed to explore the functional role of MALAT1 in RB by targeting miR-124. Results showed that the expression of - MALAT1 was significantly higher in Y79 cell line than ARPE-19 cell line (P<0...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28513496/intra-arterial-chemotherapy-for-retinoblastoma-two-year-results-from-tertiary-eye-care-center-in-india
#10
Pukhraj Rishi, Tarun Sharma, Minal Sharma, Aditya Maitray, Abhinav Dhami, Vishvesh Aggarwal, Saravanan Munusamy, R Ravikumar, Satheesh Ramamurthy
AIM: The aim of this study is to describe treatment outcomes and complications of selective intra-arterial chemotherapy (IAC) for intraocular retinoblastoma (RB). MATERIALS AND METHODS: A retrospective, interventional series of 10 eyes with RB which underwent IAC using melphalan (5 mg/7.5 mg) and topotecan (1 mg), or melphalan (5 mg/7.5 mg) alone. Treatment outcomes were evaluated in terms of tumor control, vitreous seeds (VS) and subretinal seeds (SRS) control, and globe salvage rates...
April 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28481041/reduction-of-the-tumorigenic-potential-of-human-retinoblastoma-cell-lines-by-tff1-overexpression-involves-p53-caspase-signaling-and-mir-18a-regulation
#11
Maike Busch, Jan Große-Kreul, Janina Jasmin Wirtz, Manfred Beier, Harald Stephan, Brigitte Royer-Pokora, Klaus Metz, Nicole Dünker
Trefoil factor family (TFF) peptides have been shown to play a pivotal role in oncogenic transformation, tumorigenesis and metastasis by changing cell proliferation, apoptosis, migration and invasion behavior of various cancer cell lines. In the study presented, we investigated the effect of TFF1 overexpression on cell growth, viability, migration and tumorigenicity of different retinoblastoma (RB) cell lines. Transient TFF1 overexpression significantly increases RB cell apoptosis levels. Stable, lentiviral TFF1 overexpression likewise decreases RB cell viability, proliferation and growth and significantly increases apoptosis as revealed by WST-1 assays, BrdU and DAPI cell counts...
May 8, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28447713/tetramethylpyrazine-mediated-regulation-of-cxcr4-in-retinoblastoma-is-sensitive-to-cell-density
#12
Nandan Wu, Lijun Xu, Ying Yang, Na Yu, Zhang Zhang, Pei Chen, Jing Zhang, Mingjun Tang, Meng Yuan, Jian Ge, Keming Yu, Jing Zhuang
Retinoblastoma is the most common ocular tumor in children, and it causes extensive damage. Current treatment options for retinoblastoma include surgery, chemotherapy, radiotherapy and cryotherapy. However, the majority of chemotherapy medicines cause complications and side effects that lead to severe impairment of patient health. Previous studies have reported that tetramethylpyrazine (TMP), which is an extract of the Chinese herbal medicine Chuanxiong, reduces the risk of multidrug resistance in chemotherapy and inhibits the proliferation and metastasis of various types of cancer cells...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28435935/proliferative-vitreoretinopathy-in-treated-retinoblastoma
#13
Cindy S Hwang, Pia R Mendoza, Jill R Wells, Hans E Grossniklaus, G Baker Hubbard
OBJECTIVE: To evaluate the clinical and histopathologic characteristics of patients who develop proliferative vitreoretinopathy after retinoblastoma treatment. DESIGN: Retrospective review of three cases of proliferative vitreoretinopathy (PVR) that developed after successful treatment of retinoblastoma from 2003 to 2015. SUBJECTS: Three patients with treated retinoblastoma who developed severe PVR and required enucleation. METHODS: Review of clinical charts, fundus drawings, Ret-Cam 3 images, and histopathology specimens...
March 2017: Ophthalmology retina
https://www.readbyqxmd.com/read/28368741/molecular-targeting-of-vegf-vegfr-signaling-by-the-anti-vegf-monoclonal-antibody-bd0801-inhibits-the-growth-and-induces-apoptosis-of-human-hepatocellular-carcinoma-cells-in-vitro-and-in-vivo
#14
Lin Liu, Shukui Qin, Yinghui Zheng, Li Han, Minmin Zhang, Nuo Luo, Zhengcao Liu, Ning Gu, Xiaoyi Gu, Xiaojin Yin
Hepatocellular carcinoma (HCC) is the third-leading cause of cancer-related deaths with 750,000 newly diagnosed cases each year. Surgery, radiotherapy, and chemotherapy constitute the main treatment modalities for HCC, but liver cirrhosis and damage often occur. Molecular targeted drugs have been recently developed to treat HCC. Vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR) autocrine signaling is closely related to the growth, progression, and metastasis of HCC, making the VEGF/VEGFR axis an ideal target for the development of molecular targeted agents...
March 4, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28356965/overexpression-of-kai1-inhibits-retinoblastoma-metastasis-in-vitro
#15
Hui Yan, Xunda Ji, Jing Li, Lei Zhang, Peiquan Zhao
The present study aimed to investigate the expression of cluster of differentiation 82 (KAI1), a gene involved in the suppression of tumor metastasis, in human retinoblastoma (RB) tissue and to study the effect of KAI1 expression on RB cell migration and invasion. KAI1 expression was examined in 26 patients with non-invasive and invasive retinoblastoma using reverse transcription-quantitative polymerase chain reaction and western blot analysis. A lentiviral vector containing KAI1 cDNA was used to transfect the two RB cell lines, HXO-Rb44-Gl and Y79...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28348883/familial-retinoblastoma-raised-awareness-improves-early-diagnosis-and-outcome
#16
Ibrahim Al-Nawaiseh, Aseel Q Ghanem, Yacoub A Yousef
Purpose. To study the impact of awareness of retinoblastoma in the affected families on the management and outcome of familial retinoblastoma patients. Methods and Materials. This is a retrospective, clinical case series of 44 patients with familial retinoblastoma. Collected data included patient's demographics, laterality, family history, age at diagnosis, presenting signs, treatment modalities, tumor stage, eye salvage rate, metastasis, and mortality. Results. Out of 200 retinoblastoma patients in our registry, 44 (22%) patients were familial, 18 were probands, and 26 were second, third, or fourth affected family members...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28302322/high-risk-histopathology-features-in-primary-and-secondary-enucleated-international-intraocular-retinoblastoma-classification-group-d-eyes
#17
Ido D Fabian, Andrew W Stacey, Tanzina Chowdhury, Catriona Duncan, Esin K Karaa, Irene Scheimberg, M Ashwin Reddy, Mandeep S Sagoo
PURPOSE: To evaluate the rate and identify the risk factors for high-risk histopathologic features in group D retinoblastoma eyes enucleated as primary or secondary treatment. DESIGN: Retrospective analysis. PARTICIPANTS: A total of 64 enucleated group D eyes (62 patients), of which 40 (40 patients) were primary and 24 (22 patients) were secondary to other treatments. METHODS: Clinicopathologic correlation of consecutive group D eyes enucleated from 2002 to 2014...
June 2017: Ophthalmology
https://www.readbyqxmd.com/read/28260363/-clinical-features-treatment-and-prognosis-of-retinoblastoma-in-distant-metastasis-stage
#18
H M Hu, W L Zhang, Y Z Wang, J T Shi, B Li, Y Zhang, J Li, Y Wen, D S Huang
Objective: To summarize the clinical features, treatment and prognosis of retinoblastoma (RB) patients in distant metastasis stage. Methods: Retrospective case series study. Clinical data of 24 cases (30 eyes) with diagnosis of distant metastasis stage RB were collected in pediatrics department of Beijing Tongren Hospital affiliated with Capital Medical University, from September 2005 to December 2013. In these cases, including 11 male cases and 13 female cases, the treatment age ranged from 7 months to 9 years with the median of 26 months...
February 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28243024/outcomes-of-cataract-surgery-following-treatment-for-retinoblastoma
#19
Hyeong Min Kim, Byung Joo Lee, Jeong Hun Kim, Young Suk Yu
PURPOSE: To evaluate the long-term visual outcomes and complications of cataract surgery in eyes previously treated for retinoblastoma. METHODS: We reviewed the medical records of patients who underwent cataract extraction and intraocular lens implantation at Seoul National University Children's Hospital for a secondary cataract that developed after retinoblastoma treatment. RESULTS: During the period between 1990 and 2014, 208 eyes of 147 patients received eye-salvaging treatment (radiotherapy, chemotherapy, and local therapy) for retinoblastoma at Seoul National University Children's Hospital...
February 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28221729/risk-of-metastasis-and-orbital-recurrence-in-advanced-retinoblastoma-eyes-treated-with-systemic-chemoreduction-versus-primary-enucleation
#20
COMPARATIVE STUDY
Jesse L Berry, Kaitlin Kogachi, Hassan A Aziz, Kathleen McGovern, Emily Zolfaghari, A Linn Murphree, Rima Jubran, Jonathan W Kim
BACKGROUND: The purpose of this study was to evaluate the risk of metastatic disease and orbital recurrence in advanced retinoblastoma treated with systemic chemoreduction versus primary enucleation. METHODS: A retrospective review of patients with Group D/E retinoblastoma was conducted with data collection from 1995 to 2015. Overall, 345 eyes (294 patients) were included (165 Group D and 180 Group E). Primary outcome measures were orbital recurrence and metastatic disease...
April 2017: Pediatric Blood & Cancer
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