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Ilett E, Kottke T, Thompson J, Rajani K, Zaidi S, Evgin L, Coffey M, Ralph C, Diaz R, Pandha H, Harrington K, Selby P, Bram R, Melcher A, Vile R. Prime-boost using separate oncolytic viruses in combination with checkpoint blockade improves anti-tumour therapy. Gene Ther 2017; 24:21-30. [PMID: 27779616 PMCID: PMC5387692 DOI: 10.1038/gt.2016.70] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/29/2016] [Accepted: 10/04/2016] [Indexed: 02/06/2023]
Abstract
The anti-tumour effects associated with oncolytic virus therapy are mediated significantly through immune-mediated mechanisms, which depend both on the type of virus and the route of delivery. Here, we show that intra-tumoral oncolysis by Reovirus induced the priming of a CD8+, Th1-type anti-tumour response. By contrast, systemically delivered Vesicular Stomatitis Virus expressing a cDNA library of melanoma antigens (VSV-ASMEL) promoted a potent anti-tumour CD4+ Th17 response. Therefore, we hypothesised that combining the Reovirus-induced CD8+ T cell response, with the VSV-ASMEL CD4+ Th17 helper response, would produce enhanced anti-tumour activity. Consistent with this, priming with intra-tumoral Reovirus, followed by an intra-venous VSV-ASMEL Th17 boost, significantly improved survival of mice bearing established subcutaneous B16 melanoma tumours. We also show that combination of either therapy alone with anti-PD-1 immune checkpoint blockade augmented both the Th1 response induced by systemically delivered Reovirus in combination with GM-CSF, and also the Th17 response induced by VSV-ASMEL. Significantly, anti-PD-1 also uncovered an anti-tumour Th1 response following VSV-ASMEL treatment that was not seen in the absence of checkpoint blockade. Finally, the combination of all three treatments (priming with systemically delivered Reovirus, followed by double boosting with systemic VSV-ASMEL and anti-PD-1) significantly enhanced survival, with long-term cures, compared to any individual, or double, combination therapies, associated with strong Th1 and Th17 responses to tumour antigens. Our data show that it is possible to generate fully systemic, highly effective anti-tumour immunovirotherapy by combining oncolytic viruses, along with immune checkpoint blockade, to induce complementary mechanisms of anti-tumour immune responses.
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Zaidi S, Collins A, Davies K, Wright A, Ganguli A, Mitsi E, Reine J, Owugha J, Gordon S, Ferreira D, Rylance J. P48 Research BAL using single use disposable bronchoscope. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hoy-Schulz YE, Jannat K, Roberts T, Zaidi S, Rahman MM, Unicomb L, Luby S, Parsonnet J. Colonization of Probiotics in Bangladeshi Infants After Different Administration Regimens. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.1056] [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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Zaidi S, Tavernier G, Ryan D, Fowler SJ, Niven R. P243 Specific antibody deficiency to streptococcus pneumoniae and haemophilus influenzae in asthma and fungal disease. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Djellaoui A, Zaidi S, Harrat S, Attal N, Attal E, Ait-Kaci Ahmed M. Neuropathie axonale motrice aiguë à anticorps anti-GM1 et Borrelia burgdorferi. Rev Neurol (Paris) 2016. [DOI: 10.1016/j.neurol.2016.01.109] [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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Rieu R, Benson C, Dunlop A, Khabra K, Al-Muderis O, Jones R, Van der Graaf W, Fisher C, Thway K, Messiou C, Judson I, Miah A, Zaidi S. PO-0765: Management of primary cardiac and great vessel sarcomas, The RMH experience 2000-2015. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32015-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hoy-Schulz YE, Jannat K, Roberts T, Zaidi S, Rahman MM, Alauddin M, Unicomb L, Luby S, Parsonnet J. Effect of Probiotics on Markers of Gut Health in Bangladeshi Infants. Open Forum Infect Dis 2015. [DOI: 10.1093/ofid/ofv133.1175] [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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Zaidi S, Tavernier G, Ryan D, Niven RM, Fowler SJ. P74 Prevalence of Specific Antibody Deficiency in Severe Asthma: Abstract P74 Table 1. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.211] [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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Zaidi S, Wild JM, Swift A, Marshall H, Weateherley N, Horn FC, Niven RM, Ryan D. P285 Helium Magnetic Resonance Imaging Identifies Regional Ventilation, Perfusion and Microstructure Abnormalities in a Case of “Horse-shoe” Lung. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Agrawal A, Zaidi S, Rathi B, Codony M. A CASE OF ENLARGED VIRCHOW ROBIN SPACES CAUSING PROGRESSIVE HEMI SENSORY SYMPTOMS. J Neurol Psychiatry 2015. [DOI: 10.1136/jnnp-2015-312379.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
IntroductionVirchow Robin Spaces (VRS) or perivascular spaces are usually an incidental finding but rarely they can enlarge and causes neurological symptoms. We report a case of symptomatic VRS with striking appearance on MRI Scan.Case descriptionA 33 year lady presented with progressive sensory disturbances which initially affected her right arm and later on right side of face. Her MRI Brain scan showed enlarged Virchow Robin Spaces in the left corona radiata corresponding to her symptoms.ImportanceOur case highlights a common MRI finding, typically considered incidental but which can be symptomatic in some cases. The typical scan characteristic and location of Virchow Robin spaces can help to differentiate from close mimics like cystic mass lesion. Its awareness can avoid frequent repeated imaging and interventions.
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Blakey JD, Zaidi S, Shaw DE. Defining and managing risk in asthma. Clin Exp Allergy 2015; 44:1023-32. [PMID: 24773229 DOI: 10.1111/cea.12334] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Asthma attacks are a major global source of morbidity and cost. The incidence and impact of asthma attacks have not improved despite widespread adoption of effective universal treatment guidelines. Consequently, there is increasing interest in managing asthma based on specific assessments of both current symptoms and future risk. In this review, we consider 'risk' in asthma, and how it might be assessed from the patient's history and objective measurements. We also discuss the potential for encouraging shared decision-making and improving medical consensus through explicit communication of risk and highlight the potential opportunities and challenges in risk assessment to improve asthma management through individualised treatment strategies.
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Tailor IK, Motabi I, Alshehry N, Zaidi S, Algwaiz L. Alveolar rhabdomyosarcoma masquerading as Burkitt's lymphoma in bone marrow. Hematol Oncol Stem Cell Ther 2015; 8:38-9. [PMID: 25619947 DOI: 10.1016/j.hemonc.2015.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 01/06/2015] [Indexed: 11/29/2022] Open
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Hoy-Schulz YE, Jannat K, Roberts T, Rahman M, Zaidi S, Unicomb L, Luby S, Parsonnet J. 970Safety of Bifidobacterium longum infantis and Lactobacillus reuteri in Bangladeshi Infants. Open Forum Infect Dis 2014. [PMCID: PMC5782250 DOI: 10.1093/ofid/ofu052.678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Haidari AM, Zaidi S, Gul R. Prospects for the sustainability of delivering the Basic Package of Health Services in Afghanistan: a stakeholder analysis. EASTERN MEDITERRANEAN HEALTH JOURNAL = LA REVUE DE SANTE DE LA MEDITERRANEE ORIENTALE = AL-MAJALLAH AL-SIHHIYAH LI-SHARQ AL-MUTAWASSIT 2014; 20:300-308. [PMID: 24952287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Accepted: 09/25/2013] [Indexed: 06/03/2023]
Abstract
This study explored the readiness of stakeholders in Afghanistan for sustaining delivery of the Basic Package of Health Services (BPHS) without external technical and financial assistance. A stakeholder analysis was applied using qualitative methods. Fifteen stakeholders were purposively drawn from the Afghanistan ministries of public health and finance, political representatives, development partners, nonprofit organizations and public health experts. Data were collected through in-depth interviews with the stakeholders and desk review of pertinent documents. We found that sustainability of the BPHS in Afghanistan is questionable as stakeholders are suboptimally organized to come up with effective alternatives. Uneven ownership and divisive positioning are bottlenecks to the evolution of a realistic continuation plan. Those with the most significant influence are lukewarm, while those who are most supportive have the least influence. Sustainability needs to be tackled at the start in designing the BPHS rather than in the wake of eventual donor withdrawal.
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Haidari A, Zaidi S, Gul R. Prospects for the sustainability of delivering the basic package of health services in Afghanistan: a stakeholder analysis. EASTERN MEDITERRANEAN HEALTH JOURNAL 2014. [DOI: 10.26719/2014.20.5.300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Omlin A, Pezaro CJ, Zaidi S, Lorente D, Mukherji D, Bianchini D, Ferraldeschi R, Sandhu S, Dearnaley D, Parker C, Van As N, de Bono JS, Attard G. Reply: 'Comment on Anti-tumour activity of abiraterone and diethylstilboestrol when administered sequentially to men with castration-resistant prostate cancer'. Br J Cancer 2014; 110:267-8. [PMID: 24300975 PMCID: PMC3887311 DOI: 10.1038/bjc.2013.737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Zaidi S, MacFarlane K, Dodd K, Ford V, Ward K, Ashcroft H, Cheney J, Molyneux V, Chakrabarti B, O'Reilly J, Duffy N, Angus R, Parker R. P172 Acute NIV and mortality - failure of delivery or patient selection? Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.323] [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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Omlin A, J Pezaro C, Zaidi S, Lorente D, Mukherji D, Bianchini D, Ferraldeschi R, Sandhu S, Dearnaley D, Parker C, Van As N, de Bono JS, Attard G. Antitumour activity of abiraterone and diethylstilboestrol when administered sequentially to men with castration-resistant prostate cancer. Br J Cancer 2013; 109:1079-84. [PMID: 23928659 PMCID: PMC3778298 DOI: 10.1038/bjc.2013.446] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 07/05/2013] [Accepted: 07/10/2013] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Abiraterone is a standard treatment for men with castration-resistant prostate cancer (CRPC). We evaluated the antitumour activity of abiraterone following the synthetic oestrogen diethylstilboestrol (DES). METHODS Castration-resistant prostate cancer patients treated with abiraterone were identified. Demographics, response variables and survival data were recorded. RESULTS Two-hundred and seventy-four patients received abiraterone, 114 (41.6%) after DES. Pre-chemotherapy abiraterone resulted in ≥50% PSA declines in 35/41 (85.4%) DES-naïve and 20/27 (74.1%) DES-treated patients. Post-docetaxel abiraterone resulted in ≥50% PSA declines in 40/113 (35.4%) DES-naïve and 23/81 (28.4%) DES-treated patients. Time to PSA progression was similar regardless of prior DES. CONCLUSION Abiraterone has important antitumour activity in men with CRPC even after DES exposure.
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Roulstone V, Twigger K, Zaidi S, Pencavel T, Kyula JN, White C, McLaughlin M, Seth R, Karapanagiotou EM, Mansfield D, Coffey M, Nuovo G, Vile RG, Pandha HS, Melcher AA, Harrington KJ. Synergistic cytotoxicity of oncolytic reovirus in combination with cisplatin-paclitaxel doublet chemotherapy. Gene Ther 2013; 20:521-8. [PMID: 22895509 PMCID: PMC4821071 DOI: 10.1038/gt.2012.68] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 06/26/2012] [Accepted: 07/23/2012] [Indexed: 02/07/2023]
Abstract
Oncolytic reovirus is currently under active investigation in a range of tumour types. Early phase studies have shown that this agent has modest monotherapy efficacy and its future development is likely to focus on combination regimens with cytotoxic chemotherapy. Indeed, phase I/II clinical trials have confirmed that reovirus can be safely combined with cytotoxic drugs, including a platin-taxane doublet regimen, which is currently being tested in a phase III clinical trial in patients with relapsed/metastatic head and neck cancer. Therefore, we have tested this triple (reovirus, cisplatin, paclitaxel) combination therapy in a panel of four head and neck cancer cell lines. Using the combination index (CI) method, the triple therapy demonstrated synergistic cytotoxicity in vitro in both malignant and non-malignant cell lines. In head and neck cancer cell lines, this was associated with enhanced caspase 3 and 7 cleavage, but no increase in viral replication. In vitro analyses confirmed colocalisation of markers of reovirus infection and caspase 3. Triple therapy was significantly more effective than reovirus or cisplatin-paclitaxel in athymic nude mice. These data suggest that the combination of reovirus plus platin-taxane doublet chemotherapy has significant activity in head and neck cancer and underpin the current phase III study in this indication.
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Schick U, Gulliford S, Zaidi S, Lal P, Franzese C, Gujral D, Newbold K, Nutting C, Harrington K, Bhide S. EP-1015: Predictors of acute dysphagia and oral mucositis in head and neck patients treated with chemoradiotherapy. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33321-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pegg E, Chhetri SK, Zaidi S, Mathur S, Majeed T. PSEUDOATHETOSIS AS A PRESENTING SYMPTOM OF CNS DEMYELINATION. Journal of Neurology, Neurosurgery and Psychiatry 2012. [DOI: 10.1136/jnnp-2012-304200a.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Vinu A, Chauhan S, Mane G, Anand C, Dhawale D, Reddy B, Zaidi S, Al-Deyab S, Balasubramanian V, Mori T. Low-Temperature Synthesis of Pyrano- and Furo[3,2-c]quinolines via Povarov Reaction Using a Highly Ordered 3D Nanoporous Catalyst with a High Acidity. Synlett 2012. [DOI: 10.1055/s-0031-1290452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Mansfield D, Pencavel T, Kyula JN, Zaidi S, Roulstone V, Thway K, Karapanagiotou L, Khan AA, McLaughlin M, Touchefeu Y, Seth R, Melcher AA, Vile RG, Pandha HS, Harrington KJ. Oncolytic Vaccinia virus and radiotherapy in head and neck cancer. Oral Oncol 2012; 49:108-18. [PMID: 22925693 DOI: 10.1016/j.oraloncology.2012.07.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/24/2012] [Accepted: 07/28/2012] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Oncolytic forms of attenuated Vaccinia virus are now in clinical development, assessing the compatibility of this novel treatment with radiotherapy may reveal exploitable synergistic relationships. MATERIALS AND METHODS In vitro analyses of cell killing, cell cycle effects and caspase activation were carried out on HN3, HN5, CAL27, Detroit, SIHN5B, and PJ41 cells. In vivo studies of the virus and X-radiation were performed on H&N xenografts in CD1 nude mice. RESULTS Cell killing in vitro was demonstrated to be dose- and time-dependent. Infection causes an increase in S-phase and sub-G1 cells. A dose dependent increase in active caspase-3 indicated induction of apoptosis. Xenografts injected with Vaccinia stabilised and frequently completely regressed. Combination with radiation generated additional cell death, induction of caspase activity and in vivo further improved long term regression rates. CONCLUSIONS These data support continued exploration of this therapy combination and indicates potential for clinical trials in head and neck cancer.
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Amorim E, Shih MM, Massaro L, Zaidi S, Jumaa M, Reddy V, Hammer M, Jovin T, Wechsler L. Impact in Rate of Thrombolysis after Implementation of Telestroke Network (S39.004). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s39.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Khan KA, Zaidi S, Swan N, Browne R, Torreggiani W, Lane S, Moloney E. The use of computerised tomography guided percutaneous fine needle aspiration in the evaluation of solitary pulmonary nodules. IRISH MEDICAL JOURNAL 2012; 105:50-52. [PMID: 22455240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The evaluation of a solitary pulmonary nodule (SPN) has changed over the years with increased access to percutaneous computerised tomography (CT) guided fine needle aspiration (FNA), where bronchoscopy is unhelpful. The aim of our study was to evaluate the sample adequacy, diagnostic and complication rate of CT-FNA of a SPN at our academic teaching hospital over an 18 month period. CT-FNA was performed by a radiologist, with a cytopathologist in attendance to confirm the adequacy of the sample obtained. The size of the nodule, sample material and adequacy, diagnosis and complications were recorded. A total of 101 patients were included, 54 male and the mean age was 68 +/- 11 years. The mean size of the SPN was 2.3 cm (range 1-11 cm). 56 (56%) patients had a right SPN, 45 (45%) had a left SPN. CT-FNA was diagnostic in 80 (80%) patients and non-diagnostic in 21 (20%) patients. The sample was insufficient for immunocytochemistry, although the morphological appearance was diagnostic in 20 (25%) of the 80 patients. Pneumothorax occurred in 26/101 (26%) patients post CT-FNA, of these 7 (27%) required chest drain insertion, while 19 (73%) were managed conservatively. CT FNA is a useful tool for the diagnosis of a SPN, with our diagnostic accuracy comparable to that reported in the literature. However, CT-FNA may not provide adequate sample volume to perform ancillary testing and has a moderate complication rate.
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