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Casablanca Y, Mieznikowski J, Day R, Hamilton C, Conrads T, Maxwell G, Hood B, Wallace A, Rose G, McMeekin D. Molecular profiling of tumors from stage I versus stage III/IV cancer patients: A prediction signature for metastasis in Gynecologic Oncology Group 8024. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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77
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Eakin CM, Miller A, Kerr J, Kung J, Wallace A. Assessing analytical methods to monitor isoAsp formation in monoclonal antibodies. Front Pharmacol 2014; 5:87. [PMID: 24808864 PMCID: PMC4010776 DOI: 10.3389/fphar.2014.00087] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 04/09/2014] [Indexed: 11/13/2022] Open
Abstract
A ubiquitous post-translational modification observed in proteins is isomerization of aspartic acid to isoaspartic acid (isoAsp). This non-enzymatic post-translational modification occurs spontaneously in proteins and plays a role in aging, autoimmune response, cancer, neurodegeneration, and other diseases. Formation of isoAsp is also a significant issue for recombinant monoclonal antibody based protein therapeutics particularly when isomerization occurs in a complementarity-determining region due to potential impact to the clinical efficacy. Here, we present and compare three analytical methods to monitor and/or quantify isoAsp formation in a monoclonal antibody. The methods include two peptide map based technologies with quantitation from either UV integration or total ion peak areas, as well as an alternative approach using IdeS digestion to generate Fc/2 and Fab’2 regions, followed by hydrophobic interaction chromatography (HIC) to separate the population of Fab’2 containing an isoAsp. The level of isoAsp detected by the peptide map and the digested-HIC methods presented here show similar trends although sample throughput varies by method.
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Quinn A, Hickson N, Adaway M, Priest L, Keeling C, Wallace A, Nonaka D, Byers R, Newman W, Blackhall F. 22 Mutation profiling of non-small cell lung cancer small biopsy samples using mass spectrometry and the SequenomLungCarta Panel. Lung Cancer 2014. [DOI: 10.1016/s0169-5002(14)70023-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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79
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Gonzalez D, Fearfield L, Nathan P, Tanière P, Wallace A, Brown E, Harwood C, Marsden J, Whittaker S. Concerns regarding BRAFtesting algorithm: reply from authors. Br J Dermatol 2013; 169:1168-70. [DOI: 10.1111/bjd.12509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Hayton A, Wallace A, Marks P, Edmonds K, Tingey D, Johnston P. Australian per caput dose from diagnostic imaging and nuclear medicine. RADIATION PROTECTION DOSIMETRY 2013; 156:445-450. [PMID: 23604741 DOI: 10.1093/rpd/nct101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The largest man-made contributor to the ionising radiation dose to the Australian population is from diagnostic imaging and nuclear medicine. The last estimation of this dose was made in 2004 (1.3 mSv), this paper describes a recent re-evaluation of this dose to reflect the changes in imaging trends and technology. The estimation was calculated by summing the dose from five modalities, computed tomography (CT), general radiography/fluoroscopy, interventional procedures, mammography and nuclear medicine. Estimates were made using Australian frequency data and dose data from a range of Australian and international sources of average effective dose values. The ionising radiation dose to the Australian population in 2010 from diagnostic imaging and nuclear medicine is estimated to be 1.7 mSv (1.11 mSv CT, 0.30 mSv general radiography/fluoroscopy, 0.17 mSv interventional procedures, 0.03 mSv mammography and 0.10 mSv nuclear medicine). This exceeds the estimate of 1.5 mSv per person from natural background and cosmic radiation.
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81
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Gonzalez D, Fearfield L, Nathan P, Tanière P, Wallace A, Brown E, Harwood C, Marsden J, Whittaker S. BRAF mutation testing algorithm for vemurafenib treatment in melanoma: recommendations from an expert panel. Br J Dermatol 2013; 168:700-7. [PMID: 23360189 DOI: 10.1111/bjd.12248] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The incidence of melanoma has increased rapidly over the past 30 years, and the disease is now the sixth most common cancer among men and women in the U.K. Many patients are diagnosed with or develop metastatic disease, and survival is substantially reduced in these patients. Mutations in the BRAF gene have been identified as key drivers of melanoma cells and are found in around 50% of cutaneous melanomas. Vemurafenib (Zelboraf(®) ; Roche Molecular Systems Inc., Pleasanton, CA, U.S.A.) is the first licensed inhibitor of mutated BRAF, and offers a new first-line option for patients with unresectable or metastatic melanoma who harbour BRAF mutations. Vemurafenib was developed in conjunction with a companion diagnostic, the cobas(®) 4800 BRAF V600 Mutation Test. The purpose of this paper is to make evidence-based recommendations to facilitate the implementation of BRAF mutation testing and targeted therapy in patients with metastatic melanoma in the U.K. The recommendations are the result of a meeting of an expert panel and have been reviewed by melanoma specialists and representatives of the National Cancer Research Network Clinical Study Group on behalf of the wider melanoma community. This article is intended to be a starting point for practical advice and recommendations, which will no doubt be updated as we gain further experience in personalizing therapy for patients with melanoma.
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82
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Wallace A, Host A, Whitley G, Cartwright J. Impaired interactions between decidual natural killer cells and trophoblast contribute to poor spiral artery remodelling. Placenta 2013. [DOI: 10.1016/j.placenta.2013.06.117] [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: 11/26/2022]
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83
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Wallace A, Lumicisi B, Armstrong A, Cartwright J, Whitley G. Decidual stromal cell interactions with trophoblast are not altered in pregnancies with impaired spiral artery remodelling. Placenta 2013. [DOI: 10.1016/j.placenta.2013.06.213] [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: 10/26/2022]
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84
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Host A, Wallace A, Whitley G, Cartwright J. Do decidual natural killer cells have a role in vascular smooth muscle cell dedifferentiation during spiral artery remodelling? Placenta 2013. [DOI: 10.1016/j.placenta.2013.06.194] [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: 12/01/2022]
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85
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Evans DG, Bowers N, Huson SM, Wallace A. Mutation type and position varies between mosaic and inherited NF2 and correlates with disease severity. Clin Genet 2012; 83:594-5. [PMID: 22989157 DOI: 10.1111/cge.12007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 07/27/2012] [Accepted: 08/28/2012] [Indexed: 11/27/2022]
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86
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Wallace A, Duenas-Decamp MJ, Vaine M, Peters PJ, Wang S, Clapham PR, Lu S. Rational modification of an HIV-1 gp120 results in enhanced neutralization breadth when used as a DNA prime. Retrovirology 2012. [PMCID: PMC3441686 DOI: 10.1186/1742-4690-9-s2-p343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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87
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O'Connell O, Repik A, Reeves JD, Gonzalez-Perez MP, Quitadamo B, Duenas-Decamp M, Peters P, Lin R, Anton ED, Zolla-Pazner S, Corti D, Wallace A, Wang S, Kong X, Lu S, Clapham PR. The efficiency of bridging sheet recruitment determines HIV-1 R5 envelope sensitivity to soluble CD4 and macrophage tropism. Retrovirology 2012. [PMCID: PMC3441583 DOI: 10.1186/1742-4690-9-s2-p141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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88
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Crilly MA, Wallace A. Physical inactivity and arterial dysfunction in patients with rheumatoid arthritis. Scand J Rheumatol 2012; 42:27-33. [DOI: 10.3109/03009742.2012.697915] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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89
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Cope F, Metz W, Abbruzzese B, Shuping J, Potter B, Blue M, Wallace A, Vera D, Agrawal A, King D. 875 Enhanced Sentinel Node Evaluation in Breast Cancer, Melanoma, and Head/neck Squamous Cell Carcinoma Via CD206 Receptor Targeting With Tc99m-tilmanocept. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71507-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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90
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Wallace A, Darcy K, Alvarez-Secord A, Hutson A, Tritchler D, Kirchgraber L, Grace L, Whitaker R, Berchuck A, Havrilesky L. Loss of p16 in advanced stage epithelial ovarian cancer is associated with chemoresistant disease, suboptimal debulking and poor progression-free survival: A Gynecologic Oncology Group study. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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91
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Collinson A, Lindley R, Campbell A, Waters I, Lindley T, Wallace A. An evaluation of an Internet-based approach to weight loss with low glycaemic load principles. J Hum Nutr Diet 2012; 24:192-5. [PMID: 21843154 DOI: 10.1111/j.1365-277x.2010.01138.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The prevalence of overweight and obesity is increasing worldwide at an alarming rate. An Internet-based weight-loss programme has the potential to reach larger numbers of people than traditional face-to-face programmes. A growing body of evidence supports the use of low glycaemic load (GL) diets for weight loss. The present study aimed to investigate the efficacy of an Internet-based weight-loss programme that included foods with a low GL. METHODS One hundred and three volunteers, with a body mass index (BMI) ≥28 kg m(-2) , enrolled into an Internet weight-loss programme. A dietitian counselled participants over the Internet via weekly interactive chat rooms and monthly e-mails. Participants self-recorded body weight and food intake directly on to the Internet site. Weight, BMI and waist circumference were measured, and dietary data collected, at baseline and 6 months. RESULTS Seventy participants completed the 6-month weight-loss programme. Among these, mean weight, BMI and waist circumference significantly decreased by 3.5 kg (95% CI = 2.3-4.7), 1.2 kg m(-2) (95% CI = 0.8-1.7) and 4.8 cm (95% CI = 2.8-6.8), of baseline values respectively (P < 0.001). Twenty-five (36%) of the 70 participants lost a clinically significant amount of weight (>5% of initial body weight). CONCLUSIONS This descriptive study has shown that an Internet-based weight-loss programme with low GL principles can promote weight loss. This type of intervention and approach could be used to enhance other weight-loss strategies.
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Ryman TK, Wallace A, Mihigo R, Richards P, Schlanger K, Cappelier K, Ndiaye S, Modjirom N, Tounkara B, Grant G, Anya B, Kiawi EC, Ochieng C, Kone S, Tesfaye H, Trayner N, Watkins M, Luman ET. Community and Health Worker Perceptions and Preferences Regarding Integration of Other Health Services With Routine Vaccinations: Four Case Studies. J Infect Dis 2012; 205 Suppl 1:S49-55. [DOI: 10.1093/infdis/jir796] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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93
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Vijayaraghavan M, Wallace A, Mirza IR, Kamadjeu R, Nandy R, Durry E, Everard M. Economic Evaluation of a Child Health Days Strategy to Deliver Multiple Maternal and Child Health Interventions in Somalia. J Infect Dis 2012; 205 Suppl 1:S134-40. [DOI: 10.1093/infdis/jir772] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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94
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Geraghty P, Wallace A, D’Armiento JM. Induction of the unfolded protein response by cigarette smoke is primarily an activating transcription factor 4-C/EBP homologous protein mediated process. Int J Chron Obstruct Pulmon Dis 2011; 6:309-19. [PMID: 21697995 PMCID: PMC3119106 DOI: 10.2147/copd.s19599] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Indexed: 11/26/2022] Open
Abstract
PURPOSE Cigarette smoke is the major risk factor associated with the development of chronic obstructive pulmonary disease (COPD). Recent studies propose a link between endoplasmic reticulum (ER) stress and emphysema, demonstrated by increased ER stress markers under smoking conditions. Here, we investigate whether cigarette smoke-induced ER stress is cell specific and correlates with acute and chronic cigarette smoke exposure. METHODS Gene and protein expression changes in human primary lung cell cultures following cigarette smoke extract (CSE) exposure were monitored by qPCR and Western blot analysis. Mice and guinea pigs were exposed to cigarette smoke and ER stress markers examined in whole lung homogenates. Inflammatory cells from the bronchoalveolar lavage fluid of 10 days smoke exposed mice were also examined. RESULTS Cigarette smoke induced a trend increase in the ER stress response through an activating transcription factor 4 (ATF4) mediated induction of C/EBP homologous protein (CHOP) in primary small airway epithelial cells. Bronchial epithelial cells and macrophages responded similarly to CSE. Wild-type mice and guinea pigs exposed to acute levels of cigarette smoke exhibited increased levels of CHOP but not at significant levels. However, after long-term chronic cigarette smoke exposure, CHOP expression was reduced. Interestingly, inflammatory cells from smoke exposed mice had a significant increase in CHOP/ATF4 expression. CONCLUSION A trend increase in CHOP levels appear in multiple human lung cell types following acute cigarette smoke exposure in vitro. In vivo, inflammatory cells, predominately macrophages, demonstrate significant cigarette smoke-induced ER stress. Early induction of CHOP in cigarette smoke may play a pivotal role in early induction of lung disease, however in vivo long-term cigarette smoke exposure exhibited a reduction in the ER stress response.
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Marks L, Cave S, Wallace A, Mason A, Hunter DJ, Mason JM, Peckham S. Incentivizing preventive services in primary care: perspectives on Local Enhanced Services. J Public Health (Oxf) 2011; 33:556-64. [DOI: 10.1093/pubmed/fdr016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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96
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Valliere-Douglass JF, Connell-Crowley L, Jensen R, Schnier PD, Trilisky E, Leith M, Follstad BD, Kerr J, Lewis N, Vunnum S, Treuheit MJ, Balland A, Wallace A. Photochemical degradation of citrate buffers leads to covalent acetonation of recombinant protein therapeutics. Protein Sci 2011; 19:2152-63. [PMID: 20836085 DOI: 10.1002/pro.495] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Novel acetone and aldimine covalent adducts were identified on the N-termini and lysine side chains of recombinant monoclonal antibodies. Photochemical degradation of citrate buffers, in the presence of trace levels of iron, is demonstrated as the source of these modifications. The link between degradation of citrate and the observed protein modifications was conclusively established by tracking the citrate decomposition products and protein adducts resulting from photochemical degradation of isotope labeled (13)C citrate by mass spectrometry. The structure of the acetone modification was determined by nuclear magnetic resonance (NMR) spectroscopy on modified-free glycine and found to correspond to acetone linked to the N-terminus of the amino acid through a methyl carbon. Results from mass spectrometric fragmentation of glycine modified with an acetone adduct derived from (13)C labeled citrate indicated that the three central carbons of citrate are incorporated onto protein amines in the presence of iron and light. While citrate is known to stoichiometrically decompose to acetone and CO(2) through various intermediates in photochemical systems, it has never been shown to be a causative agent in protein carbonylation. Our results point to a previously unknown source for the generation of reactive carbonyl species. This work also highlights the potential deleterious impact of trace metals on recombinant protein therapeutics formulated in citrate buffers.
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97
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Butler R, Clark C, Deans Z, Durkie M, Gonzalez D, Taniere P, Wallace A. 35 The first 12 months of UK diagnostic services for EGFR gene mutations in NSCLC patients. Lung Cancer 2011. [DOI: 10.1016/s0169-5002(11)70035-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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98
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Meacham S, Karakas S, Wallace A, Altun F. Boron in Human Health: Evidence for Dietary Recommendations and Public Policies. ACTA ACUST UNITED AC 2010. [DOI: 10.2174/1874841401003010036] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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99
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Evans DG, Ahmed M, Bayliss S, Howard E, Lalloo F, Wallace A. BRCA1, BRCA2 and CHEK2 c.1100 delC mutations in patients with double primaries of the breasts and/or ovaries. J Med Genet 2010; 47:561-6. [DOI: 10.1136/jmg.2009.075770] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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100
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Valliere‐Douglass JF, Eakin CM, Kodama P, Mujacic M, Brady LJ, Wang W, Wallace A, Yan B, Reddy P, Treuheit MJ, Balland A. Asparagine Linked Oligosaccharides Present on a Non‐Consensus Amino Acid Sequence in the CH1 Domain of Human Antibodies. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.480.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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