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Ismail F, Pretorius M, Peterson C, Yelverton C. The prevalence of chiropractic-related terminology on South African chiropractors' webpages: a cross-sectional study. Chiropr Man Therap 2023; 31:11. [PMID: 37013658 PMCID: PMC10071643 DOI: 10.1186/s12998-023-00483-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Effective communication is imperative for successful interprofessional collaborative interactions that augment both patient-centred and evidence based care. Inquiry into the prevalence of chiropractic-related terminology on South African chiropractor's webpages has not been explored to date. The implications of such analysis could indicate the professions' ability to effectively communicate in interdisciplinary settings. METHOD From 1 to 15 June 2020, Google search was used to identify the webpages (excluding social media accounts) of South African private practice chiropractors registered with the Allied Health Professions Council of South Africa (AHPCSA). Webpages were word-searched for eight chiropractic terms with context: subluxation; manipulate(-ion); adjust(-ing/-ment); holism(-tic); alignment; vital(-ism/-istic); wellness; and innate intelligence. Data collected was transferred to an Excel spreadsheet. Accuracy of information was verified by the researchers through a process of double checking. The number of instances each term was used, and certain socio-demographic data were recorded. Descriptive statistics and bivariate analyses were used to summarise and analyse the data. RESULTS Among 884 AHPCSA-registered South African chiropractors, 336 webpages were identified and analysed. From 1 to 15 June 2020, the most commonly found terms on 336 South African chiropractic webpages were 'adjust(-ing/-ment)', 'manipulate/manipulation', and 'wellness', with prevalence estimates of 64.1% (95% confidence interval [CI], 59.0% to 69.2%), 51.8% (95% CI, 46.5% to 57.1%), and 33.0% (95% CI, 28.2% to 38.2%), respectively. The least commonly found terms were 'innate intelligence' and 'vital(-ism/-istic)', with prevalence estimates of 0.60% (95% CI, 0.16% to 2.1%) and 0.30% (95% CI, 0.05% to 1.7%), respectively. Manipulate(-ion) was used more by male chiropractors (p = 0.015). The longer a chiropractor was in practice the more likely they were to use profession-specific terms (p = 0.025). The most frequently occurring combination of terms were adjust(-ing/-ment) and manipulate(-ion), found in 38 out of 336 webpages (11.3%; 95% CI, 8.4% to 15.1%). CONCLUSION The use of chiropractic-related terminology on South African chiropractic webpages was common, with the prevalence of term use varying by type of terms, by gender of the chiropractor, and by clinical practice experience. Better understanding of the effects of chiropractic terminology use on interprofessional and patient interactions and communication is warranted.
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Affiliation(s)
- F Ismail
- Department of Chiropractic, Faculty of Health Sciences, University of Johannesburg, Beit Street, Doornfontein, South Africa.
| | - M Pretorius
- Department of Chiropractic, Faculty of Health Sciences, University of Johannesburg, Beit Street, Doornfontein, South Africa
| | - C Peterson
- Department of Chiropractic, Faculty of Health Sciences, University of Johannesburg, Beit Street, Doornfontein, South Africa
| | - C Yelverton
- Department of Chiropractic, Faculty of Health Sciences, University of Johannesburg, Beit Street, Doornfontein, South Africa
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Viggor S, Jõesaar M, Peterson C, Teras R, Kivisaar M. Potential of Indigenous Strains Isolated from the Wastewater Treatment Plant of a Crude Oil Refinery. Microorganisms 2023; 11:microorganisms11030752. [PMID: 36985325 PMCID: PMC10051678 DOI: 10.3390/microorganisms11030752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Contamination of the environment with crude oil or other fuels is an enormous disaster for all organisms. The microbial communities for bioremediation have been an effective tool for eliminating pollution. This study aimed to determine individual cultures’ and a strain mixture’s ability to utilize alkanes (single alkanes and crude oil). The proper study of pure cultures is necessary to design synergistically working consortia. The Acinetobacter venetianus ICP1 and Pseudomonas oleovorans ICTN13 strains isolated from a wastewater treatment plant of a crude oil refinery can grow in media containing various aromatic and aliphatic hydrocarbons. The genome of the strain ICP1 contains four genes encoding alkane hydroxylases, whose transcription depended on the length of the alkane in the media. We observed that the hydrophobic cells of the strain ICP1 adhered to hydrophobic substrates, and their biofilm formation increased the bioavailability and biodegradation of the hydrocarbons. Although strain ICTN13 also has one alkane hydroxylase-encoding gene, the growth of the strain in a minimal medium containing alkanes was weak. Importantly, the growth of the mixture of strains in the crude oil-containing medium was enhanced compared with that of the single strains, probably due to the specialization in the degradation of different hydrocarbon classes and co-production of biosurfactants.
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Affiliation(s)
- Signe Viggor
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia
- Correspondence:
| | - Merike Jõesaar
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia
| | - Celeste Peterson
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia
- Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Riho Teras
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia
| | - Maia Kivisaar
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia
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Melloy PG, Chiswell B, Peterson C. Using large databases to study cancer genomics in an undergraduate classroom. Biochem Mol Biol Educ 2022; 50:460-462. [PMID: 35861141 DOI: 10.1002/bmb.21651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/25/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Cancer databases collect original cancer studies and patient clinical information into one site that allows for global analysis. While many courses focus on cancer, few utilize these powerful cancer databases. Our goal was to create a lab experience in which students could explore original cancer study databases, looking at the expression and incidence of driver mutations of cancer. First, the students focus on a specific patient including demographic data and type of cancer. Then the students analyze mRNA expression levels associated with mutations of the gene, determining if it is a tumor suppressor or oncogene. Students also learn which mutations are actionable and how they affect survival. In summary, this module allows students to analyze global trends in driver mutations in cancers and dive into specific patient features.
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Affiliation(s)
- Patricia G Melloy
- Department of Biological Sciences, Fairleigh Dickinson University, Madison, New Jersey, USA
| | | | - Celeste Peterson
- Department of Biology, Suffolk University, Boston, Massachusetts, United States
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Soussain C, Grommes C, Ward R, Peterson C, Cravets M, Mathias A, Sosa J, Kirby B, Ding Z, Yusuf I, Rose M, Steinberg M, Tun H. PB2096: A PHASE 1B/2 STUDY OF GB5121, A NOVEL, HIGHLY SELECTIVE, POTENT, AND CNS-PENETRANT BTK INHIBITOR FOR RELAPSED/REFRACTORY PRIMARY/SECONDARY CNS LYMPHOMA AND PRIMARY VITREORETINAL LYMPHOMA. Hemasphere 2022. [PMCID: PMC9428960 DOI: 10.1097/01.hs9.0000851216.47783.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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5
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Chakrabarti S, Benrud R, Chau J, Hall W, Shreenivas A, Erickson B, Peterson C, Ridolfi T, Miller J, Banerjee A, Thomas J, Sharif S, Fei N, Ludwig K, Olshan P, Palsuledesai C, Malhotra M, Jurdi A, Aleshin A, Kasi P. P-39 Utility of circulating tumor DNA (ctDNA) to assess tumor response in patients with locally advanced rectal cancer undergoing neoadjuvant therapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Peterson C, Chandler HL. Insulin facilitates corneal wound healing in the diabetic environment through the RTK-PI3K/Akt/mTOR axis in vitro. Mol Cell Endocrinol 2022; 548:111611. [PMID: 35231580 PMCID: PMC9053186 DOI: 10.1016/j.mce.2022.111611] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 12/13/2022]
Abstract
Diabetic patients can develop degenerative corneal changes, termed diabetic keratopathy, during the course of their disease. Topical insulin has been shown to reduce corneal wound area and restore sensitivity in diabetic rats, and both the insulin receptor (IR) and insulin-like growth factor 1 receptor (IGF-1R) stimulate cell signaling of the PI3K-Akt pathway. The purpose of this study was to assess a mechanism by which improved wound healing occurs by characterizing expression within the PI3K-Akt pathway in corneal epithelial and stromal cells. In vitro scratch tests were used to evaluate wound healing outcomes under variable glucose conditions in the presence or absence of insulin. Protein expression of intracellular kinases in the PI3K pathway, stromal cell markers, and GLUT-1 was evaluated by immunoblotting.TGF-β1 expression was evaluated by ELISA. Insulin promoted in vitro wound healing in all cell types. In human corneal epithelial cells, insulin did not induce PI3K-Akt signaling; however, in all other cell types evaluated, insulin increased expression of PI3K-Akt signaling proteins compared to vehicle control. Fibroblasts variably expressed α-SMA under all treatment conditions, with significant increases in α-SMA and TGF-β1 occurring in a dose-dependent manner with glucose concentration. These results indicate that insulin can promote corneal cellular migration and proliferation by inducing Akt signaling. Exogenous insulin therapy may serve as a novel target of therapeutic intervention for diabetic keratopathy.
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Affiliation(s)
- C Peterson
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA; Department of Vision Science, The Ohio State University College of Optometry, Columbus, OH, 43210, USA.
| | - H L Chandler
- Department of Vision Science, The Ohio State University College of Optometry, Columbus, OH, 43210, USA
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7
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Provost J, Hecht D, Huisinga K, Peterson C, Parente A, Bell J, Bell E. MDH protein interactions and phosphorylation: Engaging students with a novel scientific theme using CUREs. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r4893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - David Hecht
- David HechtSouthwestern Community CollegeChula VistaCA
| | | | | | | | - Jessica Bell
- Chemistry and BiochemistryUniversity of San DiegoSan DiegoCA
| | - Ellis Bell
- Chemistry and BiochemistryUniversity of San DiegoSan DiegoCA
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Edward S, Howell R, Balter P, Peterson C, Pollard-Larkin J, Kry S. PD-0738 Assessing the extent of treatment delivery errors among IROC H&N and lung phantoms. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02933-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Owens C, Rigaud B, Ludmir E, Gupta A, Shrestha S, de la Cruz Paulino A, Peterson C, Kry S, Smith S, Brock K, Henderson T, Howell R. OC-0939 Development and validation of a population-based colorectal model for radiation therapy dosimetry. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02719-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Edward S, Peterson C, Howell R, Balter P, Pollard-Larkin J, Kry S. OC-0290 Sources of errors in radiotherapy as assessed with the IROC lung, H&N and Spine phantoms. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02548-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Guillén D, Guekos A, Graf N, Humphreys BK, Peterson C, Schweinhardt P. Limited prognostic value of pain duration in non-specific neck pain patients seeking chiropractic care. Eur J Pain 2022; 26:1333-1342. [PMID: 35451179 PMCID: PMC9324235 DOI: 10.1002/ejp.1954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/15/2022] [Accepted: 04/04/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Pain chronicity is considered an important prognostic factor for outcome. Here, it was investigated whether pain duration influences outcome when only chronic patients (pain > three months) are considered. Secondary aims were to determine, in patients of any pain duration, how much variance in outcome is explained by pain duration and whether pain duration truly predicts outcomes, i.e. out-of-sample prediction in independent data. METHODS Secondary analysis of a cohort study of neck pain patients. Patients were assessed before start of treatment and at one week, one, three, six- and 12-months follow-up. Outcomes were Patient Global Impression of Change (PGIC) and percent change of patients' perceived pain intensity, rated on a numerical rating scale (NRS). Regression analyses (linear and logistic) and supervised machine learning were used to test the influence of pain duration on PGIC and percent NRS change at one week, one, three, six- and 12-months follow-up within sample and out-of-sample. Separate analyses were performed for the full sample (n=720) and for chronic patients (n=238) only. RESULTS No relationship between pain duration and outcome was found for chronic patients only. For the full sample, statistical relationships between pain duration and outcomes were observed at all tested follow-up time points. However, the amount of variance in outcome explained by pain duration was low and no out-of-sample prediction was possible. CONCLUSIONS Pain duration did not emerge as an important predictor of outcome in this database of 720 neck pain patients receiving chiropractic treatment.
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Affiliation(s)
- D Guillén
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - A Guekos
- Departement of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland.,Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - N Graf
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - B K Humphreys
- Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - C Peterson
- Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - P Schweinhardt
- Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
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12
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Peterson C, Kim YC, Ensign LM, Jun AS, Foster J. Induction of the integrated stress response in the rat cornea. Exp Eye Res 2021; 210:108722. [PMID: 34370978 DOI: 10.1016/j.exer.2021.108722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/13/2021] [Accepted: 08/05/2021] [Indexed: 11/19/2022]
Abstract
Keratoconus (KC), a progressive, degenerative corneal disease, represents the second leading indication for corneal transplantation globally. We have previously demonstrated that components of the Integrated Stress Response (ISR) are upregulated in human keratoconic donor tissue, and treatment of normal tissue with ISR agonists attenuates collagen production. With no consistently accepted animal models available for translational KC research, we sought to establish an in vivo model based on ISR activation to elucidate its role in the development of the KC phenotype. Four-week-old female SD rats were treated with topical SAL003 formulated as a nanosuspension or vehicle every 48 h for four doses. Animals were subject to monitoring for ocular inflammation and discomfort before being euthanized at 1, 14, or 28 days after treatment was withdrawn. Schirmer's tear test, intraocular pressure, and body weight measurements were obtained at baseline and prior to euthanasia. Globes were subject to routine histopathology, immunohistochemistry for ATF4, and qPCR for Col1a1 expression. ANOVAs and Student's t tests were used to assess statistical significance (α = 0.05). SAL003 treatment did not produce any adverse ocular or systemic phenotype but did result in decreased keratocyte density. Col1a1 transcripts were reduced, corresponding to nuclear ATF4 expression within the axial cornea. In vivo topical treatment with a gel-formulated ISR agonist recapitulates key features of the activated ISR including nuclear ATF4 expression and decreased extracellular matrix (ECM) production. Exogenous ISR agonists may present one approach to establishing a rodent model for keratoconus, a charge essential for future evaluations of pathogenesis and therapeutic interventions.
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Affiliation(s)
- C Peterson
- Department of Molecular & Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Y C Kim
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - L M Ensign
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A S Jun
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J Foster
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Peterson C, O'Connor T, Abbondanza D, Smolarek B, Dey A. The Transcription Factor CoxR Negatively Regulates Alkane Hydroxylase Transcription. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.04476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Sonmez A, Kay R, Schmids S, Peterson C, Herman A, Widge A, Nahas Z, Albott C. Changes in sleep with transcranial magnetic stimulation in adults with treatment resistant depression: Preliminary results from a naturalistic study. Eur Psychiatry 2021. [PMCID: PMC9471786 DOI: 10.1192/j.eurpsy.2021.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Sleep disturbance specifically insomnia, non-restorative sleep, and hypersomnia are common symptoms of major depressive disorder (MDD). As it alleviates major depressive disorder, transcranial magnetic stimulation (TMS) may improve associated sleep disturbances, and may also have inherent sedating or activating properties. Objectives To examine the impact of TMS on sleep disturbances in adults with treatment resistant depression in a clinical setting, we retrospectively reviewed de-identified data from naturalistically-treated MDD patients undergoing an initial acute course of TMS therapy at St.Louis Park MinCEP Clinic. Methods Adults with treatment-resistant depression received daily TMS treatments. 9-item Patient Health Questionnaire (PHQ-9) total scores were used to calculate % change at endpoint (relative to pretreatment baseline); response on both measures was defined as 50% reduction in scores, with remission defined as a final total score 4 on the PHQ-9. Insomnia was measured with a 3-item subscale of the Inventory of Depressive Symptomatology Self Report (IDS-SR). Hypersomnia was measured with a single IDS-SR item. Pairwise comparisons were performed using Student’s T-test. Categorical variables were compared using Fisher’s Exact test. Continuous outcome measures were tested with an analysis of covariance, using baseline PHQ-9 score as a fixed effect covariate. Results TMS appears to have differential modulatory effects on insomnia and hypersomnia in adults with treatment resistant depression. Conclusions These results may provide the basis for further investigation into therapeutic applications of TMS in addressing sleep disturbances in treatment-resistant depression. Measures that separate hypersomnia and insomnia should be implemented in future work addressing effects of TMS in treatment-resistant depression. Disclosure No significant relationships.
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McGrail D, Pilié P, Zhang XHF, Rosen J, Voorwerk L, Kok M, Heimberger A, Peterson C, Jonasch E, Lin S. Abstract SP084: Replication stress response defects predict responses to ICT in non-hypermutated tumors. Cancer Res 2021. [DOI: 10.1158/1538-7445.sabcs20-sp84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Immune checkpoint blockade (ICT) has provided robust, durable responses to a subset of patients. Many initial ICT trials were focused on highly mutated cancer types, such as melanoma and lung cancer, largely predicated on the idea that mutation-derived neoantigens would allow for generation of tumor-specific T cells. Subsequent analysis of patient responses in these highly mutated cancer types confirmed that increased tumor mutation burden (TMB) corresponded with improved patient outcomes. Further clinical studies identified additional predictive biomarkers, such as PD-L1 protein expression, and various gene expression signatures. Based on the success of ICT in hypermutated cancer types, further clinical trials with ICT were performed in cancers with overall lower mutational burden. These studies have indicated that many non-hypermutated cancer types with relatively low TMB may be effectively treated with ICT. For example, patients with clear cell renal cell carcinoma (ccRCC) display relatively low TMB overall, and a narrow distribution of TMB across patients, yet clinical response rates to ICT are ~30%, with some durable responses seen. Other tumor types with minimal mutation burdens, including glioblastoma (GBM) and triple negative breast cancer (TNBC), have likewise shown encouraging clinical responses to ICT. We recently demonstrated distinct tumor immunobiology between hypermutated and non-hypermutated tumor types, notably that relative neoantigen load/tumor mutation burden was only a relevant factor for immune infiltration in hypermutated tumor types. Consistent with this, clinical trials have demonstrated that TMB does not predict response to ICT in tumor types with minimal mutational load, such as breast cancer, ccRCC, and GBM. Thus, there remains a critical gap in knowledge as to how to identify which patients with non-hypermutated cancer may benefit from ICT. Here, we demonstrate that a replication stress response (RSR) defect gene expression signature accurately predicts ICT response in 11 independent non-hypermutated patient cohorts from 6 tumor types for which other biomarkers failed. Pre-clinical studies indicate that aberrant origin firing in RSR deficient tumor cells causes exhaustion of replication protein A, resulting in accumulation of immunostimulatory cytosolic DNA. Induction or suppression of RSR deficiencies was sufficient to modulate response to ICT. Taken together, the RSR defect gene signature can accurately identify patients who will benefit from ICT across numerous non-hypermutated tumor types, and pharmacological induction of RSR defects may further expand the benefits of ICT to more patients.
Citation Format: D McGrail, P Pilié, XHF Zhang, J Rosen, L Voorwerk, M Kok, A Heimberger, C Peterson, E Jonasch, S Lin. Replication stress response defects predict responses to ICT in non-hypermutated tumors [abstract]. In: Proceedings of the 2020 San Antonio Breast Cancer Virtual Symposium; 2020 Dec 8-11; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2021;81(4 Suppl):Abstract nr SP084.
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Affiliation(s)
- D McGrail
- 1MD Anderson Cancer Center, Houston, TX
| | - P Pilié
- 1MD Anderson Cancer Center, Houston, TX
| | - XHF Zhang
- 2Baylor College of Medicine, Houston, TX
| | - J Rosen
- 2Baylor College of Medicine, Houston, TX
| | - L Voorwerk
- 3The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - M Kok
- 3The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | | | - E Jonasch
- 1MD Anderson Cancer Center, Houston, TX
| | - S Lin
- 1MD Anderson Cancer Center, Houston, TX
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Coughlin DG, Ittyerah R, Peterson C, Phillips JS, Miller S, Rascovsky K, Weintraub D, Siderowf AD, Duda JE, Hurtig HI, Wolk DA, McMillan CT, Yushkevich PA, Grossman M, Lee EB, Trojanowski JQ, Irwin DJ. Hippocampal subfield pathologic burden in Lewy body diseases vs. Alzheimer's disease. Neuropathol Appl Neurobiol 2020; 46:707-721. [PMID: 32892355 DOI: 10.1111/nan.12659] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/21/2020] [Accepted: 08/22/2020] [Indexed: 12/16/2022]
Abstract
AIMS Lewy body diseases (LBD) are characterized by alpha-synuclein (SYN) pathology, but comorbid Alzheimer's disease (AD) pathology is common and the relationship between these pathologies in microanatomic hippocampal subfields is understudied. Here we use digital histological methods to test the association between hippocampal SYN pathology and the distribution of tau and amyloid-beta (Aβ) pathology in LBD and contrast with AD subjects. We also correlate pathologic burden with antemortem episodic memory testing. METHODS Hippocampal sections from 49 autopsy-confirmed LBD cases, 30 with no/low AD copathology (LBD - AD) and 19 with moderate/severe AD copathology (LBD + AD), and 30 AD patients were stained for SYN, tau, and Aβ. Sections underwent digital histological analysis of subfield pathological burden which was correlated with antemortem memory testing. RESULTS LBD - AD and LBD + AD had similar severity and distribution of SYN pathology (P > 0.05), CA2/3 being the most affected subfield (P < 0.02). In LBD, SYN correlated with tau across subfields (R = 0.49, P < 0.001). Tau burden was higher in AD than LBD + AD (P < 0.001), CA1/subiculum and entorhinal cortex (ERC) being most affected regions (P = 0.04 to <0.01). However, tau pathology in LBD - AD was greatest in CA2/3, which was equivalent to LBD + AD. Aβ severity and distribution was similar between LBD + AD and AD. Total hippocampal tau and CA2/3 tau was inversely correlated with memory performance in LBD (R = -0.52, -0.69, P = 0.04, 0.009). CONCLUSIONS Our findings suggest that tau burden in hippocampal subfields may map closely with the distribution of SYN pathology in subfield CA2/3 in LBD diverging from traditional AD and contribute to episodic memory dysfunction in LBD.
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Affiliation(s)
- D G Coughlin
- Penn Digital Neuropathology Laboratory at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Department of Neurosciences, University California San Diego, San Diego, CA, USA
| | - R Ittyerah
- Department of Radiology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - C Peterson
- Penn Digital Neuropathology Laboratory at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - J S Phillips
- Penn Digital Neuropathology Laboratory at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Frontotemporal Dementia Center at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - S Miller
- Penn Digital Neuropathology Laboratory at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - K Rascovsky
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Frontotemporal Dementia Center at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - D Weintraub
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,LBDA Research Center of Excellence at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Michael J. Crescenz VA Medical Center, Parkinson's Disease Research, Education, and Clinical Center, Philadelphia, PA, USA
| | - A D Siderowf
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,LBDA Research Center of Excellence at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - J E Duda
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,LBDA Research Center of Excellence at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Michael J. Crescenz VA Medical Center, Parkinson's Disease Research, Education, and Clinical Center, Philadelphia, PA, USA
| | - H I Hurtig
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - D A Wolk
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Alzheimer's disease Research Center at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - C T McMillan
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Frontotemporal Dementia Center at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - P A Yushkevich
- Department of Radiology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - M Grossman
- Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Frontotemporal Dementia Center at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - E B Lee
- Department of Pathology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Center for Neurodegenerative Disease Research at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - J Q Trojanowski
- Department of Pathology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Center for Neurodegenerative Disease Research at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - D J Irwin
- Penn Digital Neuropathology Laboratory at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Department of Neurology at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,Frontotemporal Dementia Center at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.,LBDA Research Center of Excellence at the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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Viala S, McDowell B, Peterson C. Identification of a Small Protein Involved in the Regulation of the Stationary Phase Sigma Factor RpoS. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Marte E, Dorlean S, Parsons D, Peterson C. Regulation of RpoS, the Stationary Phase Sigma Factor, by RbsD. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Peterson C, O’Connor T, Abbondanza D, Smolarek B, Dey A. Identification of a Transcription Factor that Represses Alkane Hydroxylase Expression. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Cardozo F, Duke E, Peterson C, Reeves D, Mayer B, Kiem H, Schiffer J. Conditions for post-rebound SHIV control in autologous hematopoietic-stem cell transplantation. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30229-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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21
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Dross S, Peterson C, O’Connor M, Tunggal H, Li J, Jerome K, Kiem H, Felber B, Mullins J, Fuller D. HIV persistence despite reservoir decay during combinatorial immunotherapy including therapeutic conserved elements (CE) DNA vaccination, αPD-1 therapy, GS-986 TLR7-agonism, and CCR5 gene-edited CD4 T cell infusion in rhesus macaques. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30204-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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de Waal E, Tran T, Abbondanza D, Dey A, Peterson C. An undergraduate laboratory module that uses the CRISPR/Cas9 system to generate frameshift mutations in yeast. Biochem Mol Biol Educ 2019; 47:573-580. [PMID: 31225941 DOI: 10.1002/bmb.21280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/22/2019] [Accepted: 06/02/2019] [Indexed: 06/09/2023]
Abstract
The CRISPR/Cas9 system is a powerful tool for gene editing and it has become increasingly important for biology students to understand this emerging technique. Most CRISPR laboratory teaching modules use complex metazoan systems or mammalian cell culture which can be expensive. Here, we present a lab module that engages students in learning the fundamentals of CRISPR/Cas9 methodology using the simple and inexpensive model system, Saccharomyces cerevisiae. Students use CRISPR/Cas9 and nonhomologous end joining to generate frameshift insertion and deletion mutations in the CAN1 gene, which are easily selected for using media plates that have canavanine. DNA sequencing is also performed to determine what type of mutation occurred in gene-edited cells. This easy to implement set of experiments has been run as both a 5-week and a shorter 3-week lab module. Learning assessments demonstrate increased understanding in CRISPR-related concepts as well as increased confidence using molecular techniques. Thus, this CRISPR/Cas9 lab module can be added to an existing Genetics, Microbiology, or Molecular Biology lab course to help undergraduate students learn current gene editing techniques with limited effort and cost. © 2019 International Union of Biochemistry and Molecular Biology, 47(5):573-580, 2019.
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Affiliation(s)
- Eric de Waal
- Biology Department, Suffolk University, Boston, Massachusetts
| | - Thomas Tran
- Biology Department, Suffolk University, Boston, Massachusetts
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, Massachusetts
| | | | - Arup Dey
- Biology Department, Suffolk University, Boston, Massachusetts
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23
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Jerome K, Stone D, Kenkel E, Tanaka M, Wangari S, Ahrens J, Feelixge H, Kumar A, Obenza W, Peterson C, Kiem HP, Stensland L, Mumane R, Huang ML, Aubert M, Hu SL. Rapamycin immune tolerization enables gene transfer following subcutaneous delivery of AAV6 but not CD4-retargeted AAV6 vectors in AAV-seropositive rhesus macaques. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)31057-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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24
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Kry S, Glenn M, Peterson C, Branco D, Mehrens H, Steinmann A, Followill D. OC-0606 IMRT QA: comparing independent recalculation against measurement based methods. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31026-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Peterson C, Dorlean S, Parsons D, Tran T, Dey A. Regulation of RpoS by RbsD in Escherichia coli. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.778.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Abbondanza D, Kaufman M, Smolarek B, Dey A, Peterson C. CoxR Directly Represses Alkane Hydroxylase Gene Expression in Caulobacter crescentus. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.458.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Arup Dey
- BiologySuffolk UniversityBostonMA
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27
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Abstract
The metaphor of a potential epigenetic differentiation landscape broadly suggests that during differentiation a stem cell approaches a stable equilibrium state from a higher free energy towards a stable equilibrium state which represents the final cell type. It has been conjectured that there is an analogy to the concept of entropy in statistical mechanics. In this context, in the undifferentiated state, the entropy would be large since fewer constraints exist on the gene expression programmes of the cell. As differentiation progresses, gene expression programmes become more and more constrained and thus the entropy would be expected to decrease. In order to assess these predictions, we compute the Shannon entropy for time-resolved single-cell gene expression data in two different experimental set-ups of haematopoietic differentiation. We find that the behaviour of this entropy measure is in contrast to these predictions. In particular, we find that the Shannon entropy is not a decreasing function of developmental pseudo-time but instead it increases towards the time point of commitment before decreasing again. This behaviour is consistent with an increase in gene expression disorder observed in populations sampled at the time point of commitment. Single cells in these populations exhibit different combinations of regulator activity that suggest the presence of multiple configurations of a potential differentiation network as a result of multiple entry points into the committed state.
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Affiliation(s)
- K Wiesner
- School of Mathematics, University of Bristol, Bristol BS8 1TW, UK.,Computational Biology and Biological Physics, Department of Astronomy and Theoretical Physics, Lund University, Lund 223 62, Sweden
| | - J Teles
- Computational Biology and Biological Physics, Department of Astronomy and Theoretical Physics, Lund University, Lund 223 62, Sweden.,Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK
| | - M Hartnor
- Computational Biology and Biological Physics, Department of Astronomy and Theoretical Physics, Lund University, Lund 223 62, Sweden
| | - C Peterson
- Computational Biology and Biological Physics, Department of Astronomy and Theoretical Physics, Lund University, Lund 223 62, Sweden
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Kelm S, Longo J, Bedi M, Siker M, Thomas J, George B, Ludwig K, Peterson C, Ridolfi T, Erickson B. The Impact of Hemoglobin on Outcomes in Anal Canal Cancer Treated with Definitive Chemoradiation. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zmora R, Mitchell L, Finlay J, Peterson C, McCarron H, Jutkowitz E, Gaugler J. SIX-MONTH EFFICACY OF REMOTE ACTIVITY MONITORING FOR PERSONS WITH DEMENTIA AND THEIR FAMILY CAREGIVERS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - L Mitchell
- Minneapolis Veterans Administration Medical Center
| | | | | | | | - E Jutkowitz
- Center for Gerontology and Healthcare Research, School of Public Health, Brown University, Providence, RI, USA
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Diamond J, Andreopoulou E, Favret A, Nanda R, Peterson C, Benaim E. Phase Ib/IIa study of RX-5902, a novel orally bioavailable inhibitor of phosphorylated P68, which prevents nuclear β-catenin translocation in patients with triple negative breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy272.351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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31
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To T, Peterson C, Li P, Efferson N, Harris M, Martin C, Hu K. 0139 Exercise Improved Daily Rhythm Of Energy Expenditure In Sedentary Individuals. Sleep 2018. [DOI: 10.1093/sleep/zsy061.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T To
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
| | - C Peterson
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - P Li
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - N Efferson
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - M Harris
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - C Martin
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - K Hu
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
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To T, Peterson C, Li P, Efferson N, Harris M, Martin C, Hu K. 0658 Exercise Enhances Fractal Correlations In Daily Energy Expenditure Fluctuations Of Sedentary Individuals. Sleep 2018. [DOI: 10.1093/sleep/zsy061.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- T To
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
| | - C Peterson
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - P Li
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
| | - N Efferson
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - M Harris
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - C Martin
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - K Hu
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
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33
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Peterson C, Maragos N, Papaj A, Ngo P, Mendes A, Von Rosen T. Analysis of Degradation of Metabolic Proteins during Starvation. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.536.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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34
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Sebbag L, Allbaugh R, Strong T, Strauss R, Wehrman R, Foote B, Peterson C, Ben-Shlomo G. Lack of effect of a topical regenerative agent on re-epithelialization rate of canine spontaneous chronic corneal epithelial defects: A randomized, double-masked, placebo-controlled study. Vet J 2018; 233:63-65. [PMID: 29486881 DOI: 10.1016/j.tvjl.2018.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 10/18/2022]
Abstract
Spontaneous chronic corneal epithelial defects (SCCEDs) are characteristic ulcers in dogs that are refractory to healing. The aim of the study was to evaluate the use of a topical regenerative agent to promote healing of SCCEDs. Nineteen dogs (20 eyes) were randomized to receive either regenerative agent (10 eyes) or placebo (10 eyes) every 48h following corneal debridement, which was repeated 1 week later if the SCCED had not yet healed. The mean±standard deviation time to re-epithelialization was 17.3±12.8 days for the group treated with a topical regenerative agent and 19.3±11.7 days for the group treated with a placebo; the cumulative healing rates were not statistically different (P>0.650). A positive association was found between the initial size of the ulcer and the time to re-epithelialization (r=0.555, P=0.011). Although well tolerated by dogs, there was no therapeutic advantage in using a topical regenerative agent for re-epithelialization of SCCEDs.
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Affiliation(s)
- L Sebbag
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA.
| | - R Allbaugh
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
| | - T Strong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
| | - R Strauss
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
| | - R Wehrman
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
| | - B Foote
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
| | - C Peterson
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
| | - G Ben-Shlomo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA
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35
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Eichholz K, Peterson C, Wagner T, Rawlings D, Zhu J, Corey L. In situ multiplex RNA fluorescence imaging of SHIV1157ipd3N4 and anti-HIV CAR T cells to study CAR T cell trafficking to sites of viral reservoir in macaque lymphoid tissues. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30670-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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36
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Peterson C, Masquelier M, Rudling M, Söderberg K, Vitols S. Lipoproteins, malignancy, and anticancer agents. Targeted Diagn Ther 2017; 5:175-200. [PMID: 1797167 DOI: 10.1201/9780203748831-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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37
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Diamond J, Eckhardt G, Gluck L, Gutierrez M, Peterson C, Pila R, Benaim E. Phase 1 study of RX-5902, a novel orally bioavailable inhibitor of phosphorylated P68, which prevents β-catenin translocation in advanced solid tumors. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx365.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Maia M, Pal S, Tagawa S, Chung V, Picus J, Gupta S, Poore J, Peterson C, Benaim E. RX-3117, an oral hypomethylating agent to treat advanced solid tumors (st): Interim results from an ongoing phase 2a study in advanced urothelial cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx371.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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39
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Gaugler J, Mitchell L, Peterson C, Rud S, Cowl A, Trost S. “IT’S LIKE A CYBER SECURITY BLANKET”: THE UTILITY OF REMOTE MONITORING IN FAMILY DEMENTIA CARE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J.E. Gaugler
- Center on Aging, School of Nursing, University of Minnesota, Minneapoils, Minnesota
| | - L. Mitchell
- Center on Aging, School of Nursing, University of Minnesota, Minneapoils, Minnesota
| | - C. Peterson
- Center on Aging, School of Nursing, University of Minnesota, Minneapoils, Minnesota
| | - S.R. Rud
- Center on Aging, School of Nursing, University of Minnesota, Minneapoils, Minnesota
| | - A. Cowl
- Center on Aging, School of Nursing, University of Minnesota, Minneapoils, Minnesota
| | - S. Trost
- Center on Aging, School of Nursing, University of Minnesota, Minneapoils, Minnesota
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Rasco D, Peterson C, Mazhari R, Benaim E, Merchan J. RX-3117, an oral antimetabolite to treat advanced solid tumors (ST): Phase 1 and ongoing phase 2a results. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw368.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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41
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Eckhardt S, Gluck W, Gutierrez M, Peterson C, Mazhari R, Benaim E. Phase 1/2a study of RX-5902 in advanced solid tumors (ST): An orally bioavailable inhibitor of phosphorylated P68 and modulator of &bgr;-catenin nuclear translocation. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw368.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Ireton-Jones C, Nishikawa R, Peterson C, Okamoto R. Case Study: Effect of an Olive Oil Based Intravenous Fat Emulsion Compared to a Soybean Oil Based Intravenous Fat Emulsion on Hyperkeratosis and Fatty Acid Profile. J Acad Nutr Diet 2016. [DOI: 10.1016/j.jand.2016.06.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Galvin S, Doobay-Persaud A, Peterson C, Young D, Murphy R, Cohen M. A new workforce for a new era: characteristics of Master of Science in
Global Health students. Ann Glob Health 2016. [DOI: 10.1016/j.aogh.2016.04.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Abstract
The pharmacokinetics of 6-thioguanine were studied in 10 patients with acute myelogenous leukemia treated with 25-100 mg/m(2) orally. The concentration of 6-thioguanine in plasma was determined with reversed phase high performance liquid chromatography (HPLC). After isolation of leukemic cells and erythrocytes by density centrifugation, HClO4 extraction of nucleotides and isolation of thiol containing substances on mercurial cellulose, the intracellular concentration of phosphorylated 6-thioguanine metabolites was measured by anion exchange HPLC. The plasma peak concentration of 6-thioguanine was significantly correlated (r(2) = 0.60) to the dose administered. In the leukemic cells, the 5'-mono-(TGMP) and 5'-triphosphates (TGTP) of 6-thioguanosine could be detected in nine of the patients. In one patient only TGMP was seen. The diphosphate could be detected in low concentrations in 6 patients. In all patients, the concentration of TGMP was higher than that of TGTP which was higher than the diphosphate. The interindividual variation in cellular TGMP and TGTP concentration was > 100-fold and independent of dose, while the variation in plasma 6-TG was < 15-fold. There was no correlation between dose or plasma area under the concentration versus time curve (AUC) of 6-TG and the cellular AUC of TGMP or TGTP. However, the AUC of TGMP and TGTP correlated significantly (r(2) = 0.64). The t1/2 of the intracellular metabolites and of 6-thioguanine in plasma were in the same order (4.4, 5.2 and 5.0 h for plasma 6-thioguanine, the intracellular mono- and triphosphate respectively). Phosphorylated metabolites of 6-thioguanine were detectable in erythrocytes from 8 patients. The kinetic pattern of the metabolites in erythrocytes was different from that in leukemic cells. While shortly after administration being eliminated according to first order kinetics in the leukemic cells, the concentration of intracellular metabolites in the erythrocytes was raising during the first 24 h after the treatment. The concentration of the metabolites were, however, much (100-fold) lower in erythrocytes compared to leukemic cells. Furthermore, the triphosphate was the predominant metabolite in the erythrocytes and considerable amounts of the diphosphate was seen while the concentration in the monophosphate was low. We conclude that there is a considerable interindividual variation in the cellular pharmacokinetics of TGMP and TGTP. The concentration of the phosphorylated metabolites in the leukemic cells cannot be predicted by determination of plasma 6-thioguanine concentration, nor by the concentration of the same metabolites in the erythrocytes.
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Affiliation(s)
- J Liliemark
- a Department of Medicine, Karolinska Institute at Huddinge Hospital, Huddinge, Sweden
| | - B Pettersson
- b Department of Clinical Pharmacology, Karolinska Hospital Stockholm (B.P. and C.P.), Stockholm, Sweden
| | - M Järnmark
- c Department of Medicine, Region Hospital, Örebro, Sweden
| | - C Peterson
- b Department of Clinical Pharmacology, Karolinska Hospital Stockholm (B.P. and C.P.), Stockholm, Sweden
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45
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Peterson C, Penchoff D, Wilson A. Prediction of Thermochemical Properties Across the Periodic Table. Annual Reports in Computational Chemistry 2016. [DOI: 10.1016/bs.arcc.2016.04.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Longo J, Siker M, George B, Ludwig K, Otterson M, Peterson C, Ridolfi T, Thomas J, Wiebe L, Erickson B. Image Based Helical Tomotherapy With Concurrent Chemotherapy in the Treatment of Anal Canal Carcinoma: A Single-Institution Series. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rasco D, Peterson C, Benaim E. 345 Preliminary phase 1 data of single agent RX-3117, an oral antimetabolite nucleoside. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30208-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Darcy L, Enskär K, Granlund M, Simeonsson RJ, Peterson C, Björk M. Health and functioning in the everyday lives of young children with cancer: documenting with the International Classification of Functioning, Disability and Health--Children and Youth (ICF-CY). Child Care Health Dev 2015; 41:475-82. [PMID: 25219405 DOI: 10.1111/cch.12191] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/20/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND Health care focus is shifting for children from surviving childhood cancer to living with it on a daily basis. There is a need to document health and function in the everyday lives of young children with cancer using the multidimensional framework and language of the International Classification of Functioning, Disability and Health--Children and Youth (ICF-CY). AIMS The aims of this study were (1) to document health and functioning in the everyday lives of young children with cancer using ICF-CY codes and (2) to identify a comprehensive code set that can aid clinical assessment. METHOD Interviews with children diagnosed with cancer and their parents, were transcribed, reviewed for content and coded to the ICF-CY using linking procedures. RESULTS A comprehensive code set (n = 70) for childhood cancer was identified. The majority of content identified to codes was related to activity and participation describing social relations with family, peers and professionals, preschool attendance and play, as well as issues related to support and independence. CONCLUSIONS The ICF-CY can be used to document the nature and range of characteristics and consequences of cancer experienced by children. The identified comprehensive code set could be helpful to health care professionals, parents and teachers in assessing and supporting young children's health and everyday life through the cancer trajectory. The comprehensive code set could be developed as a clinical assessment tool for those caring for young children with cancer. The universal language of the ICF-CY means that the utility of a clinical assessment tool based on identified codes can have wide reaching effects for the care of young children with cancer.
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Affiliation(s)
- L Darcy
- CHILD Research Group, School of Health Sciences, Jönköping University, Jönköping, Sweden; School of Health Sciences, University College Borås, Borås, Sweden
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Peterson C, Perchuk B, N'Gadjaga D, Gora K, Laub M. Characterization of a Set of Caulobacter Crescentus Transcription Factors Deletion Strains and Their Role in the Oxidative Stress Response. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.711.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Barrett Perchuk
- Department of BiologyMassachusetts Institute of TechnologyCambridgeMAUnited States
| | | | - Kasia Gora
- Department of BiologyMassachusetts Institute of TechnologyCambridgeMAUnited States
| | - Michael Laub
- Department of BiologyMassachusetts Institute of TechnologyCambridgeMAUnited States
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