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Nicoll K, Bartrop C, Walsh S, Foster R, Duncan G, Payne C, Carden C. Malignant transformation of tailgut cysts is significantly higher than previously reported: systematic review of cases in the literature. Colorectal Dis 2019; 21:869-878. [PMID: 30932326 DOI: 10.1111/codi.14628] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 03/16/2019] [Indexed: 02/08/2023]
Abstract
AIM The best treatment for tailgut cysts has not been firmly established. We report a systematic review of the cases in the available literature in order to provide an evidence base for treatment. METHOD A systematic search of articles wholly or partly in English was made of PubMed, Embase and Google Scholar; additional studies were discovered by searching reference lists and contacting authors directly. Search terms 'tailgut cyst', 'tail gut cyst', 'retrorectal hamartoma' and 'retrorectal tumour' were used for case reports or case series; no publication date restrictions were imposed. Only studies with histological confirmation of diagnosis and reporting the age and gender of patients were included. Papers were excluded by consensus between the first two authors. RESULTS A total of 196 individual cases were analysed in detail including 51 cases of neoplasia. The overall rate of neoplastic transformation was 26.6%. Although the male:female cyst incidence ratio was 1:4, men over 18 had a significantly greater relative risk of neoplasm at 1.94 (P = 0.0055). Radiological evidence of nodular thickening of the cyst wall significantly increased the relative risk of the presence of cancer (P = 0.0023). CONCLUSIONS Current orthodoxy that these are not dangerous embryological remnants is unfounded and may be false. The available data suggest the risk of malignant transformation is high and will apply to any residual tissue after excision. The same rationale behind total mesorectal excision in rectal cancer applies to tailgut cysts. Consequently they should be resected with similar oncological margins.
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Zimmer B, Gamble L, Foster R, Kennedy N, Mayer D, Bailey JB, Lemon J, Langton J. Assessment of the impact on paediatric rabies at Queen Elizabeth Central Hospital, Blantyre, Malawi, following a mass canine rabies vaccination programme. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Albany C, Adra N, Snavely A, Cary C, Masterson T, Foster R, Kesler K, Ulbright T, Cheng L, Chovanec M, Taza F, Hanna N, Einhorn L. Reply to the letter to the editor ‘A centralised multidisciplinary clinic approach for germ cell tumours’ by Crawford. Ann Oncol 2018; 29:2264-2265. [DOI: 10.1093/annonc/mdy418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Bartoli F, Bailey M, Rode B, Mateo P, Gosain R, Plante J, Norman K, Gomez S, Lefebvre F, Rucker-Martin C, Gomez A, Beech D, Foster R, Benitah J, Sabourin J. Orai1 channels inhibition protects the heart from pressure overload-induced ventricular dysfunction. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cosgrave J, Haines R, Purple RJ, Porcheret K, van Heugten-van der Kloet D, Alexander I, Juss A, Johns L, Goodwin G, Foster R, Wulff K. 0653 The Relationship Between Sleep And Circadian Rhythm Phenotypes And Dimensions Of Psychotic Experiences - Results From The Oxford Wellbeing Life And Sleep Survey (OWLS). Sleep 2018. [DOI: 10.1093/sleep/zsy061.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hwu W, De D, Bertini E, Foster R, Gheuens S, Farwell W, Reyna S. Outcomes after 1-year in presymptomatic infants with genetically diagnosed spinal muscular atrophy (SMA) treated with nusinersen: interim results from the NURTURE study. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.424] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rueda B, Starbuck K, Eavarone D, Prendergast J, Stein J, Foster R, Behrens J. Abstract MIP-071: TARGETING A CHEMORESISTANT OVARIAN CANCER CELL POPULATION VIA THE CARBOHYDRATE ANTIGEN SIALYL TN. Clin Cancer Res 2017. [DOI: 10.1158/1557-3265.ovcasymp16-mip-071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Key words: Sialyl Tn, drug resistance, antibody-drug conjugates, cancer stem cells
OBJECTIVES: A successful therapeutic strategy for ovarian cancer will require direct targeting of inherently chemoresistant tumor cells which are comprised in part of cancer stem cells (CSCs) that survive current cytotoxic treatment regimes and drive tumor resurgence. The sialyl-Tn (STn) antigen is a carbohydrate moiety present on tumor cells but rarely seen in normal adult tissue. Importantly, STn has been shown to be present on CSCs in pancreatic, colon, and gastric malignancies. Our objective was to assess the expression of STn and the known CSC marker CD133 in human ovarian cancer (OvCa) cell lines and primary serous carcinomas, and evaluate the ability of STn+ and STn- cells to both grow in an anchorage independent manner and survive standard-of-care cytotoxic therapy. Furthermore, we sought to assess the effect of murine and humanized α -STn antibody-drug conjugates (ADCs) on OvCa cells in vitro and tumor viability in vivo.
METHODS: STn and CD133 expression in established OvCa cell lines was analyzed by flow cytometry. STn-CD133-, STn+CD133-, STn-CD133+ and STn+CD133+ cells were purified from OVCAR3 and OVCAR4 by FACS, plated in soft agar, and incubated for 21 days. Colony forming efficiency of each sub-population was calculated. Unsorted cells were treated in vitro with either murine α -STn-monomethyl auristatin E (MMAE) ADC or vehicle control and cell viability was assessed by MTT assay. Subsequently, cells were treated in vitro with α -STn-MMAE, paclitaxel and carboplatin, or appropriate controls, and the profile of cells surviving 72 hours post-treatment was determined by flow cytometric analysis. Finally, OVCAR3-derived mouse xenografts were treated with murine and humanized α-STn-MMAE, unconjugated mAbs alone, and vehicle control. Mice were assessed regularly for tumor growth and cytotoxic effects.
RESULTS: In the OvCa cell lines OV90, OVCAR3 and OVCAR4, when grown in traditional 2D culture, STn+ cells comprised 98.4%, 40.0%, and 26.4% of the total cell population, respectively. In each of these cell lines, we readily detected STn+CD133+ sub-populations suggesting that STn is expressed on CD133+ ovarian CSCs. Colony formation assays analyzing FACS-purified STn-CD133-, STn+CD133-, STn-CD133+ and STn+ CD133+ sub-populations suggest that STn expression correlates with anchorage independent growth, a characteristic of cell stemness. Paclitaxel and carboplatin treatment in vitro significantly increased the proportion of STn+ and CD133+ cells, demonstrating the chemoresistant characteristics of these cells. Treatment with the murine α-STn-MMAE ADCs reduced the viability of OvCa cell lines in vitro in a dose-dependent manner. Treatment with murine and humanized α -STn- MMAE antibodies in vivo reduced tumor volumes, whereas vehicle treatment did not impede tumor growth. Interestingly, the unconjugated antibody also had a modest negative impact on tumor volume.
CONCLUSION: A novel, highly specific STn antibody identifies the STn antigen in OvCa cell lines and patient samples. STn+ and CD133+ cells demonstrate stem-like characteristics such as anchorage-independent growth and chemoresistance. STn ADCs decreased cell viability in vitro and reduced tumor volumes in vivo, suggesting that specific therapeutic targeting of STn in ovarian tumors may be an effective clinical strategy to eliminate quiescent CSCs.
Citation Format: B.R. Rueda, K. Starbuck, D. Eavarone, J. Prendergast, J. Stein, R. Foster, J. Behrens. TARGETING A CHEMORESISTANT OVARIAN CANCER CELL POPULATION VIA THE CARBOHYDRATE ANTIGEN SIALYL TN [abstract]. In: Proceedings of the 11th Biennial Ovarian Cancer Research Symposium; Sep 12-13, 2016; Seattle, WA. Philadelphia (PA): AACR; Clin Cancer Res 2017;23(11 Suppl):Abstract nr MIP-071.
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Sharman R, Illingworth G, Harvey C, Jowett A, Foster R, Espie C. 0057 A PRELIMINARY EVALUATION OF ADOLESCENT SLEEP IN THE UK - BASELINE SLEEPING PATTERNS FROM THE OXFORD TEENSLEEP COHORT. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mason E, Foster R, Wray L, McNulty A, Donovan B. Reactive arthritis following a Microsporidia infection. Int J STD AIDS 2016; 27:1239-1241. [DOI: 10.1177/0956462416640364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/05/2016] [Indexed: 11/17/2022]
Abstract
Reactive arthritis may be caused by both sexually transmissible and enteric organisms, though Microsporidia is not currently recognised as a causative agent. This case report describes the development of reactive arthritis following Microsporidia infection in an immunocompetent man.
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Xu M, Foster R, Parks H, Pankuch M. SU-F-T-427: Utilization and Evaluation of Diagnostic CT Imaging with MAR Technique for Radiation Therapy Treatment Planning. Med Phys 2016. [DOI: 10.1118/1.4956612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Bourgon S, Amorim MDD, Lam S, Munro J, Foster R, Chenier T, Miller S, Montanholi Y. Relationship of sexual development and fertility-related measures in young beef bulls with known feed efficiency. Anim Reprod Sci 2016. [DOI: 10.1016/j.anireprosci.2016.03.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Growdon W, Rauh-Hain J, Foster R, Bhasin M, Rueda B. Next-generation genomic signature highlights sustained AKT and estrogen receptor signaling as key mediators of resistance following phosphatidylinositol 3-kinase (PI3K) inhibition in patient-derived xenograft models with and without PIK3CA gene mutations. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mulhall BP, Wright ST, De La Mata N, Allen D, Brown K, Dickson B, Grotowski M, Jackson E, Petoumenos K, Foster R, Read T, Russell D, Smith DJ, Templeton DJ, Fairley CK, Law MG. Risk factors associated with incident sexually transmitted infections in HIV-positive patients in the Australian HIV Observational Database: a prospective cohort study. HIV Med 2016; 17:623-30. [PMID: 27019207 DOI: 10.1111/hiv.12371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVES We established a subcohort of HIV-positive individuals from 10 sexual health clinics within the Australian HIV Observational Database (AHOD). The aim of this study was to assess demographic and other factors that might be associated with an incident sexually transmitted infection (STI). METHODS The cohort follow-up was from March 2010 to March 2013, and included patients screened at least once for an STI. We used survival methods to determine time to first new and confirmed incident STI infection (chlamydia, gonorrhoea, syphilis or genital warts). Factors evaluated included sex, age, mode of HIV exposure, year of AHOD enrolment, hepatitis B or C coinfection, time-updated CD4 cell count, time-updated HIV RNA viral load, and prior STI diagnosis. RESULTS There were 110 first incident STI diagnoses observed over 1015 person-years of follow-up, a crude rate of 10.8 [95% confidence interval (CI) 9.0-13.0] per 100 person-years. Factors independently associated with increased risk of incident STI included younger age [≥ 50 vs. 30-39 years old, adjusted hazards ratio (aHR) 0.4; 95% CI 0.2-0.8; P < 0.0001]; prior STI infection (aHR 2.5; 95% CI 1.6-3.8; P < 0.001), and heterosexual vs. men who have sex with men (MSM) as the likely route of exposure (aHR 0.2; 95% CI 0.1-0.6; P < 0.001). CONCLUSIONS In this cohort of individualsbeing treated with antiretroviral drugs, those who were MSM, who were 30-39 years old, and who had a prior history of STI, were at highest risk of a further STI diagnosis.
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Strathie Page S, Foster R. Acrodermatitis Dysmetabolica in a Child with Cystic Fibrosis. Pediatr Dermatol 2016; 33:e93-4. [PMID: 26856809 DOI: 10.1111/pde.12789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acrodermatitis dysmetabolica is an umbrella term encompassing the other metabolic causes of an erosive periorificial and acral dermatitis that mimics acrodermatitis enteropathica. Causes include acquired zinc, amino acid, biotin, and fatty acid deficiencies. We present the case of an exclusively breastfed, 2-month-old boy with known cystic fibrosis admitted with failure to thrive and erosive dermatitis. A diagnosis of acrodermatitis dysmetabolica was made when investigations revealed a normal zinc level but low amino acid levels.
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Starbuck K, Eavarone D, Prendergast J, da Silva A, DeSander J, Behrens J, Rueda B, Foster R. Eradicating ovarian cancer stem cells by targeting the tumor-associated carbohydrate antigen sialyl Tn. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.09.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mason E, Wray L, Foster R, Jamil MS, Guy R, McNulty A, Donovan B. Reactive arthritis at the Sydney Sexual Health Centre 1992-2012: declining despite increasing chlamydia diagnoses. Int J STD AIDS 2015; 27:882-9. [PMID: 26378192 DOI: 10.1177/0956462415598251] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/01/2015] [Indexed: 01/21/2023]
Abstract
Reactive arthritis is an under-studied complication of genital Chlamydia trachomatis infection (chlamydia). We assessed trends and risk factors for reactive arthritis in a large urban sexual health clinic. Using a case-control design, data on reactive arthritis cases and controls at the Sydney Sexual Health Centre over the period 1992-2012 were extracted and multivariate analyses were performed. Trend analyses were performed on reactive arthritis diagnoses. Over the 1992-2012 study period, 85 reactive arthritis cases were diagnosed at Sydney Sexual Health Centre. The rate of reactive arthritis diagnoses decreased over time (23 in 1992-1996 to one in 2007-2011 and none in 2012), while chlamydia diagnoses increased (770 in 1992-1996 to 2257 in 2007-2011). In multivariate analysis, factors independently associated with a reactive arthritis diagnosis were: being male (adjusted odds ratio [aOR] 3.27; 95% confidence interval [CI] 1.04-10.32; p = 0.043) or born overseas (aOR 2.69; 95% CI 1.27-5.70; p = 0.010), while a past sexually transmitted infection other than chlamydia or non-gonococcal urethritis was protective (aOR 0.21; 95% CI 0.10-0.45; p < 0.001). Reactive arthritis was not associated with current or recent chlamydia infection (p = 0.184) but was marginally associated with past non-gonococcal urethritis (p = 0.080). This study found a decline in reactive arthritis diagnoses despite an increase in chlamydia diagnoses.
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Martin L, Thng C, Wand H, McNulty A, Foster R, McGregor S. O12.3 Multicultural survey – 20 years on: trends in chinese and thai female sex worker demographics and sexual health in sydney. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Martin L, Thng C, Wand H, McNulty A, Foster R, McGregor S. P14.24 Multicultural survey – asian female sex worker demographics, migration and sexual health in sydney. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hahn N, Cramer H, Badve S, Cheng L, Gokmen-Polar Y, Miller D, Buechlein A, Rusch D, Fang F, Frankhouser D, Bundschu R, Ganbat J, Foster R, Bihrle R, Masterson T, Gardner T, Koch M, Marchionni L, Pearlly Y, Nephew K. 2648 Novel DNA methylation therapeutic targets in urothelial carcinoma (UC) from patients with paired metachronous primary and metastatic tumors. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31465-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hassarati RT, Marcal H, John L, Foster R, Green RA. Biofunctionalization of conductive hydrogel coatings to support olfactory ensheathing cells at implantable electrode interfaces. J Biomed Mater Res B Appl Biomater 2015; 104:712-22. [PMID: 26248597 DOI: 10.1002/jbm.b.33497] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 07/09/2015] [Accepted: 07/18/2015] [Indexed: 11/06/2022]
Abstract
Mechanical discrepancies between conventional platinum (Pt) electrodes and neural tissue often result in scar tissue encapsulation of implanted neural recording and stimulating devices. Olfactory ensheathing cells (OECs) are a supportive glial cell in the olfactory nervous system which can transition through glial scar tissue while supporting the outgrowth of neural processes. It has been proposed that this function can be used to reconnect implanted electrodes with the target neural pathways. Conductive hydrogel (CH) electrode coatings have been proposed as a substrate for supporting OEC survival and proliferation at the device interface. To determine an ideal CH to support OECs, this study explored eight CH variants, with differing biochemical composition, in comparison to a conventional Pt electrodes. All CH variants were based on a biosynthetic hydrogel, consisting of poly(vinyl alcohol) and heparin, through which the conductive polymer (CP) poly(3,4-ethylenedioxythiophene) was electropolymerized. The biochemical composition was varied through incorporation of gelatin and sericin, which were expected to provide cell adherence functionality, supporting attachment, and cell spreading. Combinations of these biomolecules varied from 1 to 3 wt %. The physical, electrical, and biological impact of these molecules on electrode performance was assessed. Cyclic voltammetry and electrochemical impedance spectroscopy demonstrated that the addition of these biological molecules had little significant effect on the coating's ability to safely transfer charge. Cell attachment studies, however, determined that the incorporation of 1 wt % gelatin in the hydrogel was sufficient to significantly increase the attachment of OECs compared to the nonfunctionalized CH.
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Mao W, Hrycushko B, Yan Y, Foster R, Albuquerque K. SU-E-J-61: Monitoring Tumor Motion in Real-Time with EPID Imaging During Cervical Cancer Treatment. Med Phys 2015. [DOI: 10.1118/1.4924148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Foster R, Ding C, Jiang S. SU-E-T-520: Investigation of the Impact of Respiratory Motion On Spine SAbR Dose Distributions. Med Phys 2015. [DOI: 10.1118/1.4924882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Medin P, Pompos A, Britton L, Foster R. SU-E-P-01: Adaptation of Commercial, Web-Based, Medical Residency Management Software (MedHub, Inc.) for a Medium-Sized Medical Physics Residency Program. Med Phys 2015. [DOI: 10.1118/1.4923937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Lee H, Pompos A, Yan Y, Jiang S, Foster R. SU-E-T-389: Evaluation of Flattening-Filter-Free Arcs for Lung SBRT. Med Phys 2015. [DOI: 10.1118/1.4924750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tan J, Yan Y, Hager F, Gu X, Jia X, Pompos A, Foster R, Stojadinovic S, Yang M, Hrycushko B, Folkerts M, Zhao B, Medin P, Ding C, Jiang S. SU-D-BRD-02: Auto Weekly - An Automated Online Weekly Chart Check System for Medical Physics. Med Phys 2015. [DOI: 10.1118/1.4923868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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