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Coward-Smith M, Liong S, Oseghale O, Erlich JR, Miles MA, Liong F, Brassington K, Bozinovski S, Vlahos R, Brooks RD, Brooks DA, O’Leary JJ, Selemidis S. Low dose aspirin prevents endothelial dysfunction in the aorta and foetal loss in pregnant mice infected with influenza A virus. Front Immunol 2024; 15:1378610. [PMID: 38638436 PMCID: PMC11024306 DOI: 10.3389/fimmu.2024.1378610] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/15/2024] [Indexed: 04/20/2024] Open
Abstract
Influenza A virus (IAV) infection in pregnancy resembles a preeclamptic phenotype characterised by vascular dysfunction and foetal growth retardation. Given that low dose aspirin (ASA) is safe in pregnancy and is used to prevent preeclampsia, we investigated whether ASA or NO-conjugated aspirin, NCX4016, resolve vascular inflammation and function to improve offspring outcomes following IAV infection in pregnant mice. Pregnant mice were intranasally infected with a mouse adapted IAV strain (Hkx31; 104 plaque forming units) and received daily treatments with either 200µg/kg ASA or NCX4016 via oral gavage. Mice were then culled and the maternal lungs and aortas collected for qPCR analysis, and wire myography was performed on aortic rings to assess endothelial and vascular smooth muscle functionality. Pup and placentas were weighed and pup growth rates and survival assessed. IAV infected mice had an impaired endothelial dependent relaxation response to ACh in the aorta, which was prevented by ASA and NCX4016 treatment. ASA and NCX4016 treatment prevented IAV dissemination and inflammation of the aorta as well as improving the pup placental ratios in utero, survival and growth rates at post-natal day 5. Low dose ASA is safe to use during pregnancy for preeclampsia and this study demonstrates that ASA may prove a promising treatment for averting the significant vascular complications associated with influenza infection during pregnancy.
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Affiliation(s)
- Madison Coward-Smith
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Stella Liong
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Osezua Oseghale
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Jonathan R. Erlich
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Mark A. Miles
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Felicia Liong
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Kurt Brassington
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Steven Bozinovski
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Ross Vlahos
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
| | - Robert D. Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Doug A. Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - John J. O’Leary
- Discipline of Histopathology, School of Medicine, Trinity College Dublin, Dublin, Ireland
- Sir Patrick Dun’s Research Laboratory and the Trinity Translational Medicine Institute (TTMI), St. James’s Hospital, Dublin, Ireland
| | - Stavros Selemidis
- Centre for Respiratory Science and Health, School of Health & Biomedical Sciences, Royal Melbourne Institute of Techology (RMIT) University, Melbourne, VIC, Australia
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2
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Tang J, Lam GT, Brooks RD, Miles M, Useckaite Z, Johnson IR, Ung BSY, Martini C, Karageorgos L, Hickey SM, Selemidis S, Hopkins AM, Rowland A, Vather R, O'Leary JJ, Brooks DA, Caruso MC, Logan JM. Exploring the role of sporadic BRAF and KRAS mutations during colorectal cancer pathogenesis: A spotlight on the contribution of the endosome-lysosome system. Cancer Lett 2024; 585:216639. [PMID: 38290660 DOI: 10.1016/j.canlet.2024.216639] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/21/2023] [Accepted: 12/30/2023] [Indexed: 02/01/2024]
Abstract
The highly heterogenous nature of colorectal cancer can significantly hinder its early and accurate diagnosis, eventually contributing to high mortality rates. The adenoma-carcinoma sequence and serrated polyp-carcinoma sequence are the two most common sequences in sporadic colorectal cancer. Genetic alterations in adenomatous polyposis coli (APC), v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) and tumour protein 53 (TP53) genes are critical in adenoma-carcinoma sequence, whereas v-Raf murine sarcoma viral oncogene homolog B (BRAF) and MutL Homolog1 (MLH1) are driving oncogenes in the serrated polyp-carcinoma sequence. Sporadic mutations in these genes contribute differently to colorectal cancer pathogenesis by introducing distinct alterations in several signalling pathways that rely on the endosome-lysosome system. Unsurprisingly, the endosome-lysosome system plays a pivotal role in the hallmarks of cancer and contributes to specialised colon function. Thus, the endosome-lysosome system might be distinctively influenced by different mutations and these alterations may contribute to the heterogenous nature of sporadic colorectal cancer. This review highlights potential connections between major sporadic colorectal cancer mutations and the diverse pathogenic mechanisms driven by the endosome-lysosome system in colorectal carcinogenesis.
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Affiliation(s)
- Jingying Tang
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Giang T Lam
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Mark Miles
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, Melbourne, Vic, Australia
| | - Zivile Useckaite
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA, Australia
| | - Ian Rd Johnson
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Ben S-Y Ung
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Carmela Martini
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, Melbourne, Vic, Australia
| | - Ashley M Hopkins
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA, Australia
| | - Andrew Rowland
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA, Australia
| | - Ryash Vather
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia; Centre for Cancer Biology, University of South Australia, Adelaide, South Australia, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Douglas A Brooks
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, South Australia, Australia.
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3
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Bates M, Mullen D, Lee E, Costigan D, Heron EA, Kernan N, Barry-O'Crowley J, Martin C, Keegan H, Malone V, Brooks RD, Brooks DA, Logan JM, Martini C, Selemidis S, McFadden J, O'Riain C, Spillane CD, Gallagher MF, McCann A, O'Toole S, O'Leary JJ. P53 and TLR4 expression are prognostic markers informing progression free survival of advanced stage high grade serous ovarian cancer. Pathol Res Pract 2024; 253:155020. [PMID: 38103365 DOI: 10.1016/j.prp.2023.155020] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
OBJECTIVE New prognostic biomarkers, and bio-signatures, are urgently needed to facilitate a precision medicine-based approach to more effectively treat patients with high-grade serous ovarian cancer (HGSC). In this study, we analysed the expression patterns of a series of candidate protein biomarkers. METHODS The panel of markers which included MyD88, TLR4, MAD2, PR, OR, WT1, p53, p16, CD10 and Ki67 was assessed using immunohistochemistry in a tissue microarray (TMA) cohort of n = 80 patients, composed of stage 3-4 HGSCs. Each marker was analysed for their potential to predict both overall survival (OS) and progression-free survival (PFS). RESULTS TLR4 and p53 were found to be individually predictive of poorer PFS (Log Rank, p = 0.017, p = 0.030 respectively). Cox regression analysis also identified high p53 and TLR4 expression as prognostic factors for reduced PFS (p53; HR=1.785, CI=1.036-3.074, p = 0.037 and TLR4; HR=2.175, CI=1.112-4.253, p = 0.023). Multivariate forward conditional Cox regression analysis, examining all markers, identified a combined signature composed of p53 and TLR4 as prognostic for reduced PFS (p = 0.023). CONCLUSION Combined p53 and TLR4 marker assessment may help to aid treatment stratification for patients diagnosed with advanced-stage HGSC.
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Affiliation(s)
- Mark Bates
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland.
| | - Dorinda Mullen
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | - Eimear Lee
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | - Danielle Costigan
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | - Elizabeth A Heron
- Department of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Niamh Kernan
- Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | | | - Cara Martin
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | - Helen Keegan
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | - Victoria Malone
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Doug A Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Carmela Martini
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Stavros Selemidis
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology, Bundoora, Australia
| | - Julie McFadden
- Department of Histopathology, St James's Hospital, Dublin, Ireland
| | - Ciaran O'Riain
- Department of Histopathology, St James's Hospital, Dublin, Ireland
| | - Cathy D Spillane
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland
| | - Michael F Gallagher
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland
| | - Amanda McCann
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin and UCD School of Medicine, University College Dublin, UCD, Belfield Dublin 4, Ireland
| | - Sharon O'Toole
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Obstetrics and Gynaecology, Trinity College Dublin, Dublin, Ireland
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland; Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, Dublin, Ireland; Department of Pathology, Coombe Women & Infants University Hospital, Dublin, Ireland
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4
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Sorvina A, Martini C, Prabhakaran S, Logan JM, S-Y Ung B, Moore C, Johnson IRD, Lazniewska J, Tewari P, Malone V, Brooks RD, Hickey SM, Caruso MC, Klebe S, Karageorgos L, O'Leary JJ, Delahunt B, Samaratunga H, Brooks DA. Appl1, Sortilin and Syndecan-1 immunohistochemistry on intraductal carcinoma of the prostate provides evidence of retrograde spread. Pathology 2023; 55:792-799. [PMID: 37422404 DOI: 10.1016/j.pathol.2023.05.004] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/30/2023] [Accepted: 05/02/2023] [Indexed: 07/10/2023]
Abstract
The presence of intraductal carcinoma of the prostate (IDCP) correlates with late-stage disease and poor outcomes for patients with prostatic adenocarcinoma, but the accurate and reliable staging of disease severity remains challenging. Immunohistochemistry (IHC) has been utilised to overcome problems in assessing IDCP morphology, but the current markers have only demonstrated limited utility in characterising the complex biology of this lesion. In a retrospective study of a cohort of patients who had been diagnosed with IDCP, we utilised IHC on radical prostatectomy sections with a biomarker panel of Appl1, Sortilin and Syndecan-1, to interpret different architectural patterns and to explore the theory that IDCP occurs from retrograde spread of high-grade invasive prostatic adenocarcinoma. Cribriform IDCP displayed strong Appl1, Sortilin and Syndecan-1 labelling patterns, while solid IDCP architecture had high intensity Appl1 and Syndecan-1 labelling, but minimal Sortilin labelling. Notably, the expression pattern of the biomarker panel in regions of IDCP was similar to that of adjacent invasive prostatic adenocarcinoma, and also comparable to prostate cancer showing perineural and vascular invasion. The Appl1, Sortilin, and Syndecan-1 biomarker panel in IDCP provides evidence for the model of retrograde spread of invasive prostatic carcinoma into ducts/acini, and supports the inclusion of IDCP into the five-tier Gleason grading system.
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Affiliation(s)
- Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Carmela Martini
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia.
| | - Sarita Prabhakaran
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia; Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Benjamin S-Y Ung
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Courtney Moore
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Joanna Lazniewska
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Prerna Tewari
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Victoria Malone
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Sonja Klebe
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia; Department of Surgical Pathology, SA Pathology at Flinders Medical Centre, Adelaide, SA, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Brett Delahunt
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Hemamali Samaratunga
- Aquesta Uropathology, Brisbane, Qld, Australia; University of Queensland, Brisbane, Qld, Australia
| | - Doug A Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
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5
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Martini C, Logan JM, Sorvina A, Prabhakaran S, Ung BSY, Johnson IRD, Hickey SM, Brooks RD, Caruso MC, Klebe S, Karageorgos L, O'Leary JJ, Delahunt B, Samaratunga H, Brooks DA. Publisher Correction to: Distinct patterns of biomarker expression for atypical intraductal proliferations in prostate cancer. Virchows Arch 2023:10.1007/s00428-023-03666-8. [PMID: 37773453 DOI: 10.1007/s00428-023-03666-8] [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: 10/01/2023]
Affiliation(s)
- Carmela Martini
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia.
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Sarita Prabhakaran
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Benjamin S-Y Ung
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Sonja Klebe
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Department of Surgical Pathology, SA Pathology at Flinders Medical Centre, Adelaide, SA, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Brett Delahunt
- Malaghan Institute for Medical Research, Wellington, New Zealand
| | - Hemamali Samaratunga
- Aquesta Uropathology and the University of Queensland, Brisbane, Brisbane, Qld, Australia
| | - Douglas A Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
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6
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Lam GT, Martini C, Brooks T, Prabhakaran S, Hopkins AM, Ung BSY, Tang J, Caruso MC, Brooks RD, Johnson IRD, Sorvina A, Hickey SM, Karageorgos L, Klebe S, O’Leary JJ, Brooks DA, Logan JM. Insights into Melanoma Clinical Practice: A Perspective for Future Research. Cancers (Basel) 2023; 15:4631. [PMID: 37760601 PMCID: PMC10526186 DOI: 10.3390/cancers15184631] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/30/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Early diagnosis is the key to improving outcomes for patients with melanoma, and this requires a standardized histological assessment approach. The objective of this survey was to understand the challenges faced by clinicians when assessing melanoma cases, and to provide a perspective for future studies. METHODS Between April 2022 and February 2023, national and international dermatologists, pathologists, general practitioners, and laboratory managers were invited to participate in a six-question online survey. The data from the survey were assessed using descriptive statistics and qualitative responses. RESULTS A total of 54 responses were received, with a 51.4% (n = 28) full completion rate. Of the respondents, 96.4% reported ambiguity in their monthly melanoma diagnosis, and 82.1% routinely requested immunohistochemistry (IHC) testing to confirm diagnosis. SOX10 was the most frequently requested marker, and most respondents preferred multiple markers over a single marker. Diagnostic and prognostic tests, as well as therapeutic options and patient management, were all identified as important areas for future research. CONCLUSIONS The respondents indicated that the use of multiple IHC markers is essential to facilitate diagnostic accuracy in melanoma assessment. Survey responses indicate there is an urgent need to develop new biomarkers for clinical decision making at multiple critical intervention points.
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Affiliation(s)
- Giang T. Lam
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Carmela Martini
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Tiffany Brooks
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, SA 5000, Australia
- Aware Women’s Health Private Clinic, Adelaide, SA 5006, Australia
| | - Sarita Prabhakaran
- College of Medicine and Public Health, Flinders University, Adelaide, SA 5042, Australia
| | - Ashley M. Hopkins
- College of Medicine and Public Health, Flinders University, Adelaide, SA 5042, Australia
| | - Ben S.-Y. Ung
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Jingying Tang
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Maria C. Caruso
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Robert D. Brooks
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Ian R. D. Johnson
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Shane M. Hickey
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
| | - Sonja Klebe
- College of Medicine and Public Health, Flinders University, Adelaide, SA 5042, Australia
- Department of Surgical Pathology, SA Pathology at Flinders Medical Centre, Adelaide, SA 5042, Australia
| | - John J. O’Leary
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Douglas A. Brooks
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Jessica M. Logan
- Clinical and Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, Australia
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7
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Martini C, Logan JM, Sorvina A, Prabhakaran S, Ung BSY, Johnson IRD, Hickey SM, Brooks RD, Caruso MC, Klebe S, Karageorgos L, O'Leary JJ, Delahunt B, Samaratunga H, Brooks DA. Distinct patterns of biomarker expression for atypical intraductal proliferations in prostate cancer. Virchows Arch 2023:10.1007/s00428-023-03643-1. [PMID: 37704825 DOI: 10.1007/s00428-023-03643-1] [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: 08/02/2023] [Revised: 08/29/2023] [Accepted: 09/01/2023] [Indexed: 09/15/2023]
Abstract
High-grade prostatic intraepithelial neoplasia (HGPIN) is a well-characterised precursor lesion in prostate cancer. The term atypical intraductal proliferations (AIP) describes lesions with features that are far too atypical to be considered HGPIN, yet insufficient to be diagnosed as intraductal carcinoma of the prostate (IDCP). Here, a panel of biomarkers was assessed to provide insights into the biological relationship between IDCP, HGPIN, and AIP and their relevance to current clinicopathological recommendations. Tissue samples from 86 patients with prostate cancer were assessed by routine haematoxylin and eosin staining and immunohistochemistry (IHC) with a biomarker panel (Appl1/Sortilin/Syndecan-1) and a PIN4 cocktail (34βE12+P63/P504S). Appl1 strongly labelled atypical secretory cells, effectively visualising intraductal lesions. Sortilin labelling was moderate-to-strong in > 70% of cases, while Syndecan-1 was moderate-to-strong in micropapillary HGPIN/AIP lesions (83% cases) versus flat/tufting HGPIN (≤ 20% cases). Distinct biomarker labelling patterns for atypical intraductal lesions of the prostate were observed, including early atypical changes (flat/tufting HGPIN) and more advanced atypical changes (micropapillary HGPIN/AIP). Furthermore, the biomarker panel may be used as a tool to overcome the diagnostic uncertainty surrounding AIP by supporting a definitive diagnosis of IDCP for such lesions displaying the same biomarker pattern as cribriform IDCP.
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Affiliation(s)
- Carmela Martini
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia.
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Sarita Prabhakaran
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Benjamin S Y Ung
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Sonja Klebe
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Department of Surgical Pathology, SA Pathology at Flinders Medical Centre, Adelaide, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Brett Delahunt
- Malaghan Institute for Medical Research, Wellington, New Zealand
| | | | - Douglas A Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
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Miles MA, Liong S, Liong F, Coward-Smith M, Trollope GS, Oseghale O, Erlich JR, Brooks RD, Logan JM, Hickey S, Wang H, Bozinovski S, O’Leary JJ, Brooks DA, Selemidis S. TLR7 promotes chronic airway disease in RSV-infected mice. Front Immunol 2023; 14:1240552. [PMID: 37795093 PMCID: PMC10545951 DOI: 10.3389/fimmu.2023.1240552] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/28/2023] [Indexed: 10/06/2023] Open
Abstract
Respiratory syncytial virus (RSV) commonly infects the upper respiratory tract (URT) of humans, manifesting with mild cold or flu-like symptoms. However, in infants and the elderly, severe disease of the lower respiratory tract (LRT) often occurs and can develop into chronic airway disease. A better understanding of how an acute RSV infection transitions to a LRT chronic inflammatory disease is critically important to improve patient care and long-term health outcomes. To model acute and chronic phases of the disease, we infected wild-type C57BL/6 and toll-like receptor 7 knockout (TLR7 KO) mice with RSV and temporally assessed nasal, airway and lung inflammation for up to 42 days post-infection. We show that TLR7 reduced viral titers in the URT during acute infection but promoted pronounced pathogenic and chronic airway inflammation and hyperreactivity in the LRT. This study defines a hitherto unappreciated molecular mechanism of lower respiratory pathogenesis to RSV, highlighting the potential of TLR7 modulation to constrain RSV pathology to the URT.
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Affiliation(s)
- Mark A. Miles
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Stella Liong
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Felicia Liong
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Madison Coward-Smith
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Gemma S. Trollope
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Osezua Oseghale
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Jonathan R. Erlich
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Robert D. Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Jessica M. Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Shane Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Hao Wang
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Steven Bozinovski
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - John J. O’Leary
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, St James’s Hospital, Dublin, Ireland
| | - Doug A. Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
| | - Stavros Selemidis
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
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9
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Lam GT, Sorvina A, Martini C, Prabhakaran S, Ung BSY, Lazniewska J, Moore CR, Beck AR, Hopkins AM, Johnson IRD, Caruso MC, Hickey SM, Brooks RD, Jackett L, Karageorgos L, Foster-Smith EJ, Malone V, Klebe S, O'Leary JJ, Brooks DA, Logan JM. Altered endosomal-lysosomal biogenesis in melanoma. Neoplasia 2023; 43:100924. [PMID: 37562257 PMCID: PMC10423698 DOI: 10.1016/j.neo.2023.100924] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
Cutaneous melanoma is the deadliest form of skin neoplasm and its high mortality rates could be averted by early accurate detection. While the detection of melanoma is currently reliant upon melanin visualisation, research into melanosome biogenesis, as a key driver of pathogenesis, has not yielded technology that can reliably distinguish between atypical benign, amelanotic and melanotic lesions. The endosomal-lysosomal system has important regulatory roles in cancer cell biology, including a specific functional role in melanosome biogenesis. Herein, the involvement of the endosomal-lysosomal system in melanoma was examined by pooled secondary analysis of existing gene expression datasets. A set of differentially expressed endosomal-lysosomal genes was identified in melanoma, which were interconnected by biological function. To illustrate the protein expression of the dysregulated genes, immunohistochemistry was performed on samples from patients with cutaneous melanoma to reveal candidate markers. This study demonstrated the dysregulation of Syntenin-1, Sortilin and Rab25 may provide a differentiating feature between cutaneous melanoma and squamous cell carcinoma, while IGF2R may indicate malignant propensity in these skin cancers.
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Affiliation(s)
- Giang T Lam
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Carmela Martini
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Sarita Prabhakaran
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Ben S-Y Ung
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Joanna Lazniewska
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Courtney R Moore
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Andrew R Beck
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Ashley M Hopkins
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Louise Jackett
- Anatomical Pathology Department, Austin Hospital, Melbourne, Vic, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | | | - Victoria Malone
- Department of Histopathology, Trinity College Dublin, Ireland
| | - Sonja Klebe
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia; Department of Surgical Pathology, SA Pathology at Flinders Medical Centre, Adelaide, SA, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Ireland
| | - Douglas A Brooks
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Jessica M Logan
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, SA, Australia.
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10
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Lazniewska J, Li KL, Johnson IRD, Sorvina A, Logan JM, Martini C, Moore C, Ung BSY, Karageorgos L, Hickey SM, Prabhakaran S, Heatlie JK, Brooks RD, Huzzell C, Warnock NI, Ward MP, Mohammed B, Tewari P, Martin C, O'Toole S, Edgerton LB, Bates M, Moretti P, Pitson SM, Selemidis S, Butler LM, O'Leary JJ, Brooks DA. Dynamic interplay between sortilin and syndecan-1 contributes to prostate cancer progression. Sci Rep 2023; 13:13489. [PMID: 37596305 PMCID: PMC10439187 DOI: 10.1038/s41598-023-40347-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 08/09/2023] [Indexed: 08/20/2023] Open
Abstract
Prostate cancer (PCa) development and progression relies on the programming of glucose and lipid metabolism, and this involves alterations in androgen receptor expression and signalling. Defining the molecular mechanism that underpins this metabolic programming will have direct significance for patients with PCa who have a poor prognosis. Here we show that there is a dynamic balance between sortilin and syndecan-1, that reports on different metabolic phenotypes. Using tissue microarrays, we demonstrated by immunohistochemistry that sortilin was highly expressed in low-grade cancer, while syndecan-1 was upregulated in high-grade disease. Mechanistic studies in prostate cell lines revealed that in androgen-sensitive LNCaP cells, sortilin enhanced glucose metabolism by regulating GLUT1 and GLUT4, while binding progranulin and lipoprotein lipase (LPL) to limit lipid metabolism. In contrast, in androgen-insensitive PC3 cells, syndecan-1 was upregulated, interacted with LPL and colocalised with β3 integrin to promote lipid metabolism. In addition, androgen-deprived LNCaP cells had decreased expression of sortilin and reduced glucose-metabolism, but increased syndecan-1 expression, facilitating interactions with LPL and possibly β3 integrin. We report a hitherto unappreciated molecular mechanism for PCa, which may have significance for disease progression and how androgen-deprivation therapy might promote castration-resistant PCa.
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Affiliation(s)
- Joanna Lazniewska
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia.
| | - Ka Lok Li
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Carmela Martini
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Courtney Moore
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Ben S-Y Ung
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Sarita Prabhakaran
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia
| | - Jessica K Heatlie
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Chelsea Huzzell
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Nicholas I Warnock
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, 5000, Australia
| | - Mark P Ward
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | - Bashir Mohammed
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | - Prerna Tewari
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | - Cara Martin
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | - Sharon O'Toole
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | | | - Mark Bates
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | - Paul Moretti
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, 5000, Australia
| | - Stuart M Pitson
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, 5000, Australia
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, VIC, 3083, Australia
| | - Lisa M Butler
- South Australian ImmunoGENomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, 5000, Australia
- Solid Tumour Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, 5000, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin 8, Ireland
| | - Douglas A Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia.
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11
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Logan JM, Hopkins AM, Martini C, Sorvina A, Tewari P, Prabhakaran S, Huzzell C, Johnson IRD, Hickey SM, Ung BSY, Lazniewska J, Brooks RD, Moore CR, Caruso MC, Karageorgos L, Martin CM, O'Toole S, Bogue Edgerton L, Ward MP, Bates M, Selemidis S, Esterman A, Heffernan S, Keegan H, Ní Mhaolcatha S, O'Connor R, Malone V, Carter M, Ryan K, Clarke A, Brady N, Klebe S, Samaratunga H, Delahunt B, Sorich MJ, Moretti K, Butler LM, O'Leary JJ, Brooks DA. Prediction of Prostate Cancer Biochemical and Clinical Recurrence Is Improved by IHC-Assisted Grading Using Appl1, Sortilin and Syndecan-1. Cancers (Basel) 2023; 15:3215. [PMID: 37370825 DOI: 10.3390/cancers15123215] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Gleason scoring is used within a five-tier risk stratification system to guide therapeutic decisions for patients with prostate cancer. This study aimed to compare the predictive performance of routine H&E or biomarker-assisted ISUP (International Society of Urological Pathology) grade grouping for assessing the risk of biochemical recurrence (BCR) and clinical recurrence (CR) in patients with prostate cancer. This retrospective study was an assessment of 114 men with prostate cancer who provided radical prostatectomy samples to the Australian Prostate Cancer Bioresource between 2006 and 2014. The prediction of CR was the primary outcome (median time to CR 79.8 months), and BCR was assessed as a secondary outcome (median time to BCR 41.7 months). The associations of (1) H&E ISUP grade groups and (2) modified ISUP grade groups informed by the Appl1, Sortilin and Syndecan-1 immunohistochemistry (IHC) labelling were modelled with BCR and CR using Cox proportional hazard approaches. IHC-assisted grading was more predictive than H&E for BCR (C-statistic 0.63 vs. 0.59) and CR (C-statistic 0.71 vs. 0.66). On adjusted analysis, IHC-assisted ISUP grading was independently associated with both outcome measures. IHC-assisted ISUP grading using the biomarker panel was an independent predictor of individual BCR and CR. Prospective studies are needed to further validate this biomarker technology and to define BCR and CR associations in real-world cohorts.
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Affiliation(s)
- Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Ashley M Hopkins
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA 5042, Australia
| | - Carmela Martini
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Prerna Tewari
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Sarita Prabhakaran
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA 5042, Australia
| | - Chelsea Huzzell
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Ben S-Y Ung
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Joanna Lazniewska
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Courtney R Moore
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Cara M Martin
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Sharon O'Toole
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | | | - Mark P Ward
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Mark Bates
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, Melbourne, VIC 3001, Australia
| | - Adrian Esterman
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
| | - Sheena Heffernan
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Helen Keegan
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Sarah Ní Mhaolcatha
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Roisin O'Connor
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Victoria Malone
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Marguerite Carter
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Katie Ryan
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Andres Clarke
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Nathan Brady
- Department of Pathology, The Coombe Women and Infants University Hospital, D08 XW7X Dublin, Ireland
| | - Sonja Klebe
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA 5042, Australia
| | - Hemamali Samaratunga
- Aquesta Uropathology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Brett Delahunt
- Malaghan Institute of Medical Research, Wellington 6012, New Zealand
| | - Michael J Sorich
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA 5042, Australia
| | - Kim Moretti
- Discipline of Surgery, University of Adelaide, Adelaide, SA 5371, Australia
- Allied Health and Human Performance, University of South Australia, Adelaide, SA 5005, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC 3800, Australia
| | - Lisa M Butler
- South Australian ImmunoGENomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA 5005, Australia
- Solid Tumour Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5000, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Douglas A Brooks
- Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia
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12
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Mohamed BM, Ward MP, Bates M, Spillane CD, Kelly T, Martin C, Gallagher M, Heffernan S, Norris L, Kennedy J, Saadeh FA, Gleeson N, Brooks DA, Brooks RD, Selemidis S, O'Toole S, O'Leary JJ. Ex vivo expansion of circulating tumour cells (CTCs). Sci Rep 2023; 13:3704. [PMID: 36879003 PMCID: PMC9988863 DOI: 10.1038/s41598-023-30733-6] [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: 05/19/2022] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Circulating tumour cells (CTCs) are a critical intermediate step in the process of cancer metastasis. The reliability of CTC isolation/purification has limited both the potential to report on metastatic progression and the development of CTCs as targets for therapeutic intervention. Here we report a new methodology, which optimises the culture conditions for CTCs using primary cancer cells as a model system. We exploited the known biology that CTCs thrive in hypoxic conditions, with their survival and proliferation being reliant on the activation of hypoxia-inducible factor 1 alpha (HIF-1α). We isolated epithelial-like and quasi-mesenchymal CTC phenotypes from the blood of a cancer patient and successfully cultured these cells for more than 8 weeks. The presence of CTC clusters was required to establish and maintain long-term cultures. This novel methodology for the long-term culture of CTCs will aid in the development of downstream applications, including CTC theranostics.
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Affiliation(s)
- Bashir M Mohamed
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland. .,Trinity St James's Cancer Institute, Dublin 8, Ireland. .,Department of Obstetrics and Gynaecology, Trinity College Dublin, Dublin, Ireland.
| | - Mark P Ward
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Mark Bates
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Cathy D Spillane
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Tanya Kelly
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Cara Martin
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Michael Gallagher
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Sheena Heffernan
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
| | - Lucy Norris
- Department of Obstetrics and Gynaecology, Trinity College Dublin, Dublin, Ireland
| | - John Kennedy
- HOPE Directorate, St. James's Hospital, Dublin 8, Ireland
| | - Feras Abu Saadeh
- Division of Gynaecological Oncology, St. James's Hospital, Dublin 8, Ireland
| | - Noreen Gleeson
- Division of Gynaecological Oncology, St. James's Hospital, Dublin 8, Ireland
| | - Doug A Brooks
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland.,Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5001, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5001, Australia
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Sharon O'Toole
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland.,Department of Obstetrics and Gynaecology, Trinity College Dublin, Dublin, Ireland
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Emer Casey Molecular Pathology Research Laboratory, Coombe Women & Infants University Hospital, Dublin, Ireland.,Trinity St James's Cancer Institute, Dublin 8, Ireland
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13
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Martini C, Logan JM, Sorvina A, Gordon C, Beck AR, S-Y Ung B, Caruso MC, Moore C, Hocking A, Johnson IRD, Li KL, Karageorgos L, Hopkins AM, Esterman AJ, Huzzell C, Brooks RD, Lazniewska J, Hickey SM, Bader C, Parkinson-Lawrence E, Weigert R, Sorich MJ, Tewari P, Martin C, O'Toole S, Bates M, Ward M, Mohammed B, Keegan H, Watson W, Prendergast S, Heffernan S, NiMhaolcatha S, O'Connor R, Malone V, Carter M, Ryan K, Brady N, Clarke A, Sokol F, Prabhakaran S, Stahl J, Klebe S, Samaratunga H, Delahunt B, Selemidis S, Moretti KL, Butler LM, O'Leary JJ, Brooks DA. Aberrant protein expression of Appl1, Sortilin and Syndecan-1 during the biological progression of prostate cancer. Pathology 2023; 55:40-51. [PMID: 36089417 DOI: 10.1016/j.pathol.2022.08.001] [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: 06/08/2022] [Revised: 07/19/2022] [Accepted: 08/01/2022] [Indexed: 01/27/2023]
Abstract
Diagnosis and assessment of patients with prostate cancer is dependent on accurate interpretation and grading of histopathology. However, morphology does not necessarily reflect the complex biological changes occurring in prostate cancer disease progression, and current biomarkers have demonstrated limited clinical utility in patient assessment. This study aimed to develop biomarkers that accurately define prostate cancer biology by distinguishing specific pathological features that enable reliable interpretation of pathology for accurate Gleason grading of patients. Online gene expression databases were interrogated and a pathogenic pathway for prostate cancer was identified. The protein expression of key genes in the pathway, including adaptor protein containing a pleckstrin homology (PH) domain, phosphotyrosine-binding (PTB) domain, and leucine zipper motif 1 (Appl1), Sortilin and Syndecan-1, was examined by immunohistochemistry (IHC) in a pilot study of 29 patients with prostate cancer, using monoclonal antibodies designed against unique epitopes. Appl1, Sortilin, and Syndecan-1 expression was first assessed in a tissue microarray cohort of 112 patient samples, demonstrating that the monoclonal antibodies clearly illustrate gland morphologies. To determine the impact of a novel IHC-assisted interpretation (the utility of Appl1, Sortilin, and Syndecan-1 labelling as a panel) of Gleason grading, versus standard haematoxylin and eosin (H&E) Gleason grade assignment, a radical prostatectomy sample cohort comprising 114 patients was assessed. In comparison to H&E, the utility of the biomarker panel reduced subjectivity in interpretation of prostate cancer tissue morphology and improved the reliability of pathology assessment, resulting in Gleason grade redistribution for 41% of patient samples. Importantly, for equivocal IHC-assisted labelling and H&E staining results, the cancer morphology interpretation could be more accurately applied upon re-review of the H&E tissue sections. This study addresses a key issue in the field of prostate cancer pathology by presenting a novel combination of three biomarkers and has the potential to transform clinical pathology practice by standardising the interpretation of the tissue morphology.
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Affiliation(s)
- Carmela Martini
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia.
| | - Jessica M Logan
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Alexandra Sorvina
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Colin Gordon
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Andrew R Beck
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Ben S-Y Ung
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Maria C Caruso
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Courtney Moore
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Ashleigh Hocking
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Ian R D Johnson
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Ka Lok Li
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Litsa Karageorgos
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Ashley M Hopkins
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA, Australia
| | - Adrian J Esterman
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Chelsea Huzzell
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Robert D Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Joanna Lazniewska
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Shane M Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Christie Bader
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | | | - Roberto Weigert
- Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Michael J Sorich
- College of Medicine and Public Health, Flinders University, Flinders Drive, Bedford Park, Adelaide, SA, Australia
| | - Prerna Tewari
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Cara Martin
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Sharon O'Toole
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Mark Bates
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Mark Ward
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Bashir Mohammed
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Helen Keegan
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - William Watson
- University College Dublin, School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Sophie Prendergast
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Sheena Heffernan
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Sarah NiMhaolcatha
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Roisin O'Connor
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Victoria Malone
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Marguerite Carter
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Katie Ryan
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Nathan Brady
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Andres Clarke
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Filip Sokol
- Department of Pathology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Sarita Prabhakaran
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia; Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Jürgen Stahl
- Department of Cytopathology and Histopathology, Clinpath Pathology, Adelaide, SA, Australia
| | - Sonja Klebe
- Department of Anatomical Pathology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia; Department of Surgical Pathology, SA Pathology at Flinders Medical Centre, Adelaide, SA, Australia
| | | | - Brett Delahunt
- Department of Pathology and Molecular Medicine, Wellington School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, STEM College, RMIT University, Bundoora, Melbourne, Vic, Australia
| | - Kim L Moretti
- Discipline of Surgery, University of Adelaide, Adelaide, SA, Australia; University of South Australia, Adelaide, SA, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Vic, Australia
| | - Lisa M Butler
- South Australian ImmunoGENomics Cancer Institute and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia; Solid Tumour Program, Precision Cancer Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Dublin, Ireland
| | - Douglas A Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
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14
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Oseghale O, Liong S, Coward-Smith M, To EE, Erlich JR, Luong R, Liong F, Miles M, Norouzi S, Martin C, O’Toole S, Brooks RD, Bozinovski S, Vlahos R, O’Leary JJ, Brooks DA, Selemidis S. Influenza A virus elicits peri-vascular adipose tissue inflammation and vascular dysfunction of the aorta in pregnant mice. PLoS Pathog 2022; 18:e1010703. [PMID: 35930608 PMCID: PMC9385053 DOI: 10.1371/journal.ppat.1010703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 08/17/2022] [Accepted: 06/24/2022] [Indexed: 11/30/2022] Open
Abstract
Influenza A virus (IAV) infection during pregnancy initiates significant aortic endothelial and vascular smooth muscle dysfunction, with inflammation and T cell activation, but the details of the mechanism are yet to be clearly defined. Here we demonstrate that IAV disseminates preferentially into the perivascular adipose tissue (PVAT) of the aorta in mice. IAV mRNA levels in the PVAT increased at 1–3 days post infection (d.p.i) with the levels being ~4–8 fold higher compared with the vessel wall. IAV infection also increased Ly6Clow patrolling monocytes and Ly6Chigh pro-inflammatory monocytes in the vessel wall at 3 d.p.i., which was then followed by a greater homing of these monocytes into the PVAT at 6 d.p.i. The vascular immune phenotype was characteristic of a “vascular storm”- like response, with increases in neutrophils, pro-inflammatory cytokines and oxidative stress markers in the PVAT and arterial wall, which was associated with an impairment in endothelium-dependent relaxation to acetylcholine. IAV also triggered a PVAT compartmentalised elevation in CD4+ and CD8+ activated T cells. In conclusion, the PVAT of the aorta is a niche that supports IAV dissemination and a site for perpetuating a profound innate inflammatory and adaptive T cell response. The manifestation of this inflammatory response in the PVAT following IAV infection may be central to the genesis of cardiovascular complications arising during pregnancy. Influenza A virus (IAV) infection remains a major cause of significant disease during pregnancy. IAV infection in pregnancy results in virus dissemination from the lung to the systemic vasculature, thereby initiating profound vascular inflammation and T cell activation that leads to vascular damage. Currently, the details of the mechanism that facilitates this vascular pathology and the influence of IAV dissemination to the vasculature on the perivascular adipose tissue (PVAT) is not clearly defined. Here, we show that IAV disseminates to the PVAT compartment of the vessel at a much larger rate than the vessel wall. We found that IAV infection increased PVAT inflammation characterised by immune cell infiltration, oxidative stress and pro-inflammatory cytokines. This was accompanied by a preferential immune T cell activation in the PVAT. We also found that this vascular inflammatory burden results in vascular endothelial dysfunction that is characterised by an impairment in endothelium dependent relaxation. Our study provides new insights into how IAV utilises the PVAT to promote the vascular inflammatory pathology that disrupts the vasculature in pregnancy and lead to pregnancy complications.
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Affiliation(s)
- Osezua Oseghale
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
- Centre for Innate Immunity and Infectious Disease, Hudson Institute of Medical Research, Monash University, Clayton, Victoria, Australia
| | - Stella Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
- * E-mail: (SL); (SS)
| | - Madison Coward-Smith
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Eunice E. To
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Jonathan R. Erlich
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Raymond Luong
- Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Felicia Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Mark Miles
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Shaghayegh Norouzi
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Cara Martin
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, St James’s Hospital, Dublin, Ireland
- Emer Casey Research Laboratory, Molecular Pathology Laboratory, The Coombe Women and Infants University Hospital, Dublin, Ireland
- CERVIVA research consortium, Trinity College Dublin, Dublin, Ireland
| | - Sharon O’Toole
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, St James’s Hospital, Dublin, Ireland
- Emer Casey Research Laboratory, Molecular Pathology Laboratory, The Coombe Women and Infants University Hospital, Dublin, Ireland
- CERVIVA research consortium, Trinity College Dublin, Dublin, Ireland
| | - Robert D. Brooks
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Ross Vlahos
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - John J. O’Leary
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, St James’s Hospital, Dublin, Ireland
- Emer Casey Research Laboratory, Molecular Pathology Laboratory, The Coombe Women and Infants University Hospital, Dublin, Ireland
- CERVIVA research consortium, Trinity College Dublin, Dublin, Ireland
| | - Doug A. Brooks
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
- Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
- * E-mail: (SL); (SS)
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15
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To EE, Erlich JR, Liong F, Liong S, Luong R, Oseghale O, Miles MA, Papagianis PC, Quinn KM, Bozinovski S, Vlahos R, Brooks RD, O’Leary JJ, Brooks DA, Selemidis S. Therapeutic Targeting of Endosome and Mitochondrial Reactive Oxygen Species Protects Mice From Influenza Virus Morbidity. Front Pharmacol 2022; 13:870156. [PMID: 35401240 PMCID: PMC8984148 DOI: 10.3389/fphar.2022.870156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/02/2022] [Indexed: 11/29/2022] Open
Abstract
There is an urgent need to develop effective therapeutic strategies including immunomodulators to combat influenza A virus (IAV) infection. Influenza A viruses increase ROS production, which suppress anti-viral responses and contribute to pathological inflammation and morbidity. Two major cellular sites of ROS production are endosomes via the NOX2-oxidase enzyme and the electron transport chain in mitochondria. Here we examined the effect of administration of Cgp91ds-TAT, an endosome-targeted NOX2 oxidase inhibitor, in combination with mitoTEMPO, a mitochondrial ROS scavenger and compared it to monotherapy treatment during an established IAV infection. Mice were infected with IAV (Hkx31 strain; 104PFU/mouse) and 24 h post infection were treated with Cgp91ds-TAT (0.2 mg/kg), mitoTEMPO (100 μg) or with a combination of these inhibitors [Cgp91ds-TAT (0.2 mg/kg)/mitoTEMPO (100 μg)] intranasally every day for up to 2 days post infection (pi). Mice were euthanized on Days 3 or 6 post infection for analyses of disease severity. A combination of Cgp91ds-TAT and mitoTEMPO treatment was more effective than the ROS inhibitors alone at reducing airway and neutrophilic inflammation, bodyweight loss, lung oedema and improved the lung pathology with a reduction in alveolitis following IAV infection. Dual ROS inhibition also caused a significant elevation in Type I IFN expression at the early phase of infection (day 3 pi), however, this response was suppressed at the later phase of infection (day 6 pi). Furthermore, combined treatment with Cgp91ds-TAT and mitoTEMPO resulted in an increase in IAV-specific CD8+ T cells in the lungs. In conclusion, this study demonstrates that the reduction of ROS production in two major subcellular sites, i.e. endosomes and mitochondria, by intranasal delivery of a combination of Cgp91ds-TAT and mitoTEMPO, suppresses the severity of influenza infection and highlights a novel immunomodulatory approach for IAV disease management.
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Affiliation(s)
- Eunice E. To
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- F.M Kirby Neurobiology Centre, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Jonathan R. Erlich
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Felicia Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Stella Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Raymond Luong
- Department of Pharmacology, Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia
| | - Osezua Oseghale
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Mark A. Miles
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Paris C. Papagianis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Kylie M. Quinn
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Ross Vlahos
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Robert D. Brooks
- Cancer Research Institute and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - John J. O’Leary
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, Department of Histopathology Trinity College Dublin, Dublin, Ireland
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, Dublin, Ireland
| | - Doug A. Brooks
- Cancer Research Institute and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, Dublin, Ireland
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- *Correspondence: Stavros Selemidis,
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16
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Gillam TA, Caporale C, Brooks RD, Bader CA, Sorvina A, Werrett MV, Wright PJ, Morrison JL, Massi M, Brooks DA, Zacchini S, Hickey SM, Stagni S, Plush SE. Neutral Re(I) Complex Platform for Live Intracellular Imaging. Inorg Chem 2021; 60:10173-10185. [PMID: 34210122 DOI: 10.1021/acs.inorgchem.1c00418] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Luminescent metal complexes are a valuable platform for the generation of cell imaging agents. However, many metal complexes are cationic, a factor that can dominate the intracellular accumulation to specific organelles. Neutral Re(I) complexes offer a more attractive platform for the development of bioconjugated imaging agents, where charge cannot influence their intracellular distribution. Herein, we report the synthesis of a neutral complex (ReAlkyne), which was used as a platform for the generation of four carbohydrate-conjugated imaging agents via Cu(I)-catalyzed azide-alkyne cycloaddition. A comprehensive evaluation of the physical and optical properties of each complex is provided, together with a determination of their utility as live cell imaging agents in H9c2 cardiomyoblasts. Unlike their cationic counterparts, many of which localize within mitochondria, these neutral complexes have localized within the endosomal/lysosomal network, a result consistent with examples of dinuclear carbohydrate-appended neutral Re(I) complexes that have been reported. This further demonstrates the utility of these neutral Re(I) complex imaging platforms as viable imaging platforms for the development of bioconjugated cell imaging agents.
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Affiliation(s)
- Todd A Gillam
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia.,UniSA STEM, Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Chiara Caporale
- Department of Chemistry, Curtin University, Kent St., Bentley, Western Australia 6102, Australia
| | - Robert D Brooks
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Christie A Bader
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Alexandra Sorvina
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Melissa V Werrett
- School of Chemistry, Monash University, Clayton, Melbourne, Victoria 3800, Australia
| | - Phillip J Wright
- Department of Chemistry, Curtin University, Kent St., Bentley, Western Australia 6102, Australia
| | - Janna L Morrison
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Massimiliano Massi
- Department of Chemistry, Curtin University, Kent St., Bentley, Western Australia 6102, Australia
| | - Doug A Brooks
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Shane M Hickey
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia
| | - Stefano Stagni
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Sally E Plush
- UniSA Clinical and Health Sciences, University of South Australia, North Tce, Adelaide, South Australia 5000, Australia.,UniSA STEM, Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
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17
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Ward MP, E Kane L, A Norris L, Mohamed BM, Kelly T, Bates M, Clarke A, Brady N, Martin CM, Brooks RD, Brooks DA, Selemidis S, Hanniffy S, Dixon EP, A O'Toole S, J O'Leary J. Platelets, immune cells and the coagulation cascade; friend or foe of the circulating tumour cell? Mol Cancer 2021; 20:59. [PMID: 33789677 PMCID: PMC8011144 DOI: 10.1186/s12943-021-01347-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/15/2021] [Indexed: 02/07/2023] Open
Abstract
Cancer cells that transit from primary tumours into the circulatory system are known as circulating tumour cells (CTCs). These cancer cells have unique phenotypic and genotypic characteristics which allow them to survive within the circulation, subsequently extravasate and metastasise. CTCs have emerged as a useful diagnostic tool using "liquid biopsies" to report on the metastatic potential of cancers. However, CTCs by their nature interact with components of the blood circulatory system on a constant basis, influencing both their physical and morphological characteristics as well as metastatic capabilities. These properties and the associated molecular profile may provide critical diagnostic and prognostic capabilities in the clinic. Platelets interact with CTCs within minutes of their dissemination and are crucial in the formation of the initial metastatic niche. Platelets and coagulation proteins also alter the fate of a CTC by influencing EMT, promoting pro-survival signalling and aiding in evading immune cell destruction. CTCs have the capacity to directly hijack immune cells and utilise them to aid in CTC metastatic seeding processes. The disruption of CTC clusters may also offer a strategy for the treatment of advance staged cancers. Therapeutic disruption of these heterotypical interactions as well as direct CTC targeting hold great promise, especially with the advent of new immunotherapies and personalised medicines. Understanding the molecular role that platelets, immune cells and the coagulation cascade play in CTC biology will allow us to identify and characterise the most clinically relevant CTCs from patients. This will subsequently advance the clinical utility of CTCs in cancer diagnosis/prognosis.
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Affiliation(s)
- Mark P Ward
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland.
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland.
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland.
| | - Laura E Kane
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Lucy A Norris
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
- Department of Obstetrics and Gynaecology, Trinity College Dublin, Dublin 8, Ireland
| | - Bashir M Mohamed
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Tanya Kelly
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Mark Bates
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Andres Clarke
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Nathan Brady
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Cara M Martin
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
| | - Robert D Brooks
- Cancer Research Institute, University of South Australia, 5001, Adelaide, Australia
| | - Doug A Brooks
- Cancer Research Institute, University of South Australia, 5001, Adelaide, Australia
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, RMIT University, Victoria, 3083, Bundoora, Australia
| | | | - Eric P Dixon
- BD Technologies and Innovation, Research Triangle Park, NC, USA
| | - Sharon A O'Toole
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
- Department of Obstetrics and Gynaecology, Trinity College Dublin, Dublin 8, Ireland
| | - John J O'Leary
- Department of Histopathology and Morbid Anatomy, Trinity College Dublin, Dublin 8, Ireland
- Emer Casey Molecular Pathology Research Laboratory, Coombe Women and Infants University Hospital, Dublin 8, Ireland
- Trinity St. James's Cancer Institute, St James's Hospital, Dublin 8, Ireland
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18
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To EE, O'Leary JJ, O'Neill LAJ, Vlahos R, Bozinovski S, Porter CJH, Brooks RD, Brooks DA, Selemidis S. Spatial Properties of Reactive Oxygen Species Govern Pathogen-Specific Immune System Responses. Antioxid Redox Signal 2020; 32:982-992. [PMID: 32008365 PMCID: PMC7426979 DOI: 10.1089/ars.2020.8027] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Significance: Reactive oxygen species (ROS) are often considered to be undesirable toxic molecules that are generated under conditions of cellular stress, which can cause damage to critical macromolecules such as DNA. However, ROS can also contribute to the pathogenesis of cancer and many other chronic inflammatory disease conditions, including atherosclerosis, metabolic disease, chronic obstructive pulmonary disease, neurodegenerative disease, and autoimmune disease. Recent Advances: The field of ROS biology is expanding, with an emerging paradigm that these reactive species are not generated haphazardly, but instead produced in localized regions or in specific subcellular compartments, and this has important consequences for immune system function. Currently, there is evidence for ROS generation in extracellular spaces, in endosomal compartments, and within mitochondria. Intriguingly, the specific location of ROS production appears to be influenced by the type of invading pathogen (i.e., bacteria, virus, or fungus), the size of the invading pathogen, as well as the expression/subcellular action of pattern recognition receptors and their downstream signaling networks, which sense the presence of these invading pathogens. Critical Issues: ROS are deliberately generated by the immune system, using specific NADPH oxidases that are critically important for pathogen clearance. Professional phagocytic cells can sense a foreign bacterium, initiate phagocytosis, and then within the confines of the phagosome, deliver bursts of ROS to these pathogens. The importance of confining ROS to this specific location is the impetus for this perspective. Future Directions: There are specific knowledge gaps on the fate of the ROS generated by NADPH oxidases/mitochondria, how these ROS are confined to specific locations, as well as the identity of ROS-sensitive targets and how they regulate cellular signaling.
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Affiliation(s)
- Eunice E To
- Program in Chronic Infectious and Inflammatory Diseases, Oxidant and Inflammation Biology Group, School of Health and Biomedical Sciences, College of Science, Engineering & Health, RMIT University, Melbourne, Australia.,Infection and Immunity Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, Australia
| | - John J O'Leary
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland.,Sir Patrick Dun's Laboratory, Central Pathology Laboratory, St James's Hospital, Dublin, Ireland.,Emer Casey Research Laboratory, Molecular Pathology Laboratory, The Coombe Women and Infants University Hospital, Dublin, Ireland.,CERVIVA Research Consortium, Trinity College Dublin, Dublin, Ireland
| | - Luke A J O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ross Vlahos
- Program in Chronic Infectious and Inflammatory Diseases, Oxidant and Inflammation Biology Group, School of Health and Biomedical Sciences, College of Science, Engineering & Health, RMIT University, Melbourne, Australia
| | - Steven Bozinovski
- Program in Chronic Infectious and Inflammatory Diseases, Oxidant and Inflammation Biology Group, School of Health and Biomedical Sciences, College of Science, Engineering & Health, RMIT University, Melbourne, Australia
| | - Christopher J H Porter
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Australia.,Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Australia
| | - Robert D Brooks
- School of Pharmacy and Medical Sciences, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, Australia
| | - Doug A Brooks
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland.,School of Pharmacy and Medical Sciences, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, Australia
| | - Stavros Selemidis
- Program in Chronic Infectious and Inflammatory Diseases, Oxidant and Inflammation Biology Group, School of Health and Biomedical Sciences, College of Science, Engineering & Health, RMIT University, Melbourne, Australia.,Infection and Immunity Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, Australia
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Brooks RD, Jolly PE, Marsh L, Velazquez JM, Padilla L, Jaoko WG. Intimate partner violence among HIV-positive women in Nairobi, Kenya. Int J Womens Health 2019; 11:451-461. [PMID: 31695511 PMCID: PMC6707364 DOI: 10.2147/ijwh.s203327] [Citation(s) in RCA: 5] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 07/09/2019] [Indexed: 11/27/2022] Open
Abstract
Purpose This study was conducted to identify the prevalence and sociodemographic factors associated with four forms of intimate partner violence (IPV) among HIV-positive women attending the Comprehensive Care Centre at the Kenyatta National Hospital in Nairobi, Kenya. Methods A cross-sectional study was conducted among 600 sexually active HIV-positive women aged 18–69 years from May to August of 2012. A structured questionnaire including questions pertaining to sociodemographic characteristics, health care decisions, and forms of IPV (controlling behavior, emotional abuse, physical violence, and sexual violence) was administered to each woman. Results All women reported experiencing emotional abuse; 20%, 17%, and 15% experienced controlling behavior, physical violence, and sexual violence, respectively. Women who reported low/below average socioeconomic status (SES) had a greater likelihood of experiencing controlling behavior than women with high/average SES (adjusted odds ratio [aOR] =1.62, 95% CI 1.05–2.51). Women who were unemployed had greater odds of experiencing physical violence than those who were employed (aOR =2.35, 95% CI 1.31–4.23). Non-Christian women had higher odds of experiencing controlling behavior, physical violence, and sexual violence than Christian women (aOR =4.41, 95% CI 1.81–10.76 and aOR =3.33, 95% CI 1.43–7.80). Conclusion Based on the prevalence of IPV and the sociodemographic factors identified to be associated with IPV among women in this study it may be beneficial to include IPV screening as part of routine clinic visits for HIV-positive and other women. Furthermore, women who report emotional abuse or controlling behavior from spouse should not be overlooked, as these two forms of IPV may precede or accompany physical and sexual IPV. Women who report experiencing IPV during clinic visits may be referred to organizations and resources available to battered women in Kenya. Increased funding for anti-IPV programs and changes in policy may also contribute to a reduction in IPV among HIV-positive and other women in Kenya.
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Affiliation(s)
- R D Brooks
- Department of Epidemiology, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - P E Jolly
- Department of Epidemiology, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - L Marsh
- Department of Epidemiology, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - J M Velazquez
- Department of Epidemiology, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - L Padilla
- Department of Epidemiology, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - W G Jaoko
- Department of Medical Microbiology, School of Medicine, University of Nairobi, Nairobi, Kenya
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Jenie SNA, Pace S, Sciacca B, Brooks RD, Plush SE, Voelcker NH. Lanthanide luminescence enhancements in porous silicon resonant microcavities. ACS Appl Mater Interfaces 2014; 6:12012-12021. [PMID: 25032481 DOI: 10.1021/am500983r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, the covalent immobilization and luminescence enhancement of a europium (Eu(III)) complex in a porous silicon (pSi) layer with a microcavity (pSiMC) structure are demonstrated. The alkyne-pendant arm of the Eu(III) complex was covalently immobilized on the azide-modified surface via ligand-assisted "click" chemistry. The design parameters of the microcavity were optimized to obtain an efficient luminescence-enhancing device. Luminescence enhancements by a factor of 9.5 and 3.0 were observed for Eu(III) complex bound inside the pSiMC as compared to a single layer and Bragg reflector of identical thickness, respectively, confirming the increased interaction between the immobilized molecules and the electric field in the spacer of the microcavity. When comparing pSiMCs with different resonance wavelength position, luminescence was enhanced when the resonance wavelength overlapped with the maximum emission wavelength of the Eu(III) complex at 614 nm, allowing for effective coupling between the confined light and the emitting molecules. The pSiMC also improved the spectral color purity of the Eu(III) complex luminescence. The ability of a pSiMC to act as an efficient Eu(III) luminescence enhancer, combined with the resulting sharp linelike emission, can be exploited for the development of ultrasensitive optical biosensors.
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Affiliation(s)
- S N Aisyiyah Jenie
- Mawson Institute, University of South Australia , Mawson Lakes, SA 5095, Australia
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Du Z, Borlace GN, Brooks RD, Butler RN, Brooks DA, Plush SE. Synthesis and characterisation of folic acid based lanthanide ion probes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.10.011] [Citation(s) in RCA: 4] [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: 10/26/2022]
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Bader CA, Brooks RD, Ng YS, Sorvina A, Werrett MV, Wright PJ, Anwer AG, Brooks DA, Stagni S, Muzzioli S, Silberstein M, Skelton BW, Goldys EM, Plush SE, Shandala T, Massi M. Modulation of the organelle specificity in Re(i) tetrazolato complexes leads to labeling of lipid droplets. RSC Adv 2014. [DOI: 10.1039/c4ra00050a] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Neutral Re(i) tetrazolato complexes exhibit labeling of lipid droplets with high specificity.
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Affiliation(s)
- Christie A. Bader
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
| | - Robert D. Brooks
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
| | - Yeap S. Ng
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
| | - Alexandra Sorvina
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
| | | | | | - Ayad G. Anwer
- Department of Physics and Astronomy
- Macquarie University
- North Ryde, Australia
| | - Douglas A. Brooks
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
| | - Stefano Stagni
- Department of Industrial Chemistry
- University of Bologna
- Bologna 40126, Italy
| | - Sara Muzzioli
- Department of Industrial Chemistry
- University of Bologna
- Bologna 40126, Italy
| | | | - Brian W. Skelton
- Centre for Microscopy
- Characterisation and Analysis
- University of Western Australia
- Crawley, Australia
| | - Ewa M. Goldys
- Department of Physics and Astronomy
- Macquarie University
- North Ryde, Australia
| | - Sally E. Plush
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
| | - Tetyana Shandala
- School of Pharmacy and Medical Science
- University of South Australia
- Adelaide, Australia
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Goldsmith MR, Grulke CM, Brooks RD, Transue TR, Tan YM, Frame A, Egeghy PP, Edwards R, Chang DT, Tornero-Velez R, Isaacs K, Wang A, Johnson J, Holm K, Reich M, Mitchell J, Vallero DA, Phillips L, Phillips M, Wambaugh JF, Judson RS, Buckley TJ, Dary CC. Development of a consumer product ingredient database for chemical exposure screening and prioritization. Food Chem Toxicol 2013; 65:269-79. [PMID: 24374094 DOI: 10.1016/j.fct.2013.12.029] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [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: 10/16/2013] [Revised: 12/17/2013] [Accepted: 12/19/2013] [Indexed: 10/25/2022]
Abstract
Consumer products are a primary source of chemical exposures, yet little structured information is available on the chemical ingredients of these products and the concentrations at which ingredients are present. To address this data gap, we created a database of chemicals in consumer products using product Material Safety Data Sheets (MSDSs) publicly provided by a large retailer. The resulting database represents 1797 unique chemicals mapped to 8921 consumer products and a hierarchy of 353 consumer product "use categories" within a total of 15 top-level categories. We examine the utility of this database and discuss ways in which it will support (i) exposure screening and prioritization, (ii) generic or framework formulations for several indoor/consumer product exposure modeling initiatives, (iii) candidate chemical selection for monitoring near field exposure from proximal sources, and (iv) as activity tracers or ubiquitous exposure sources using "chemical space" map analyses. Chemicals present at high concentrations and across multiple consumer products and use categories that hold high exposure potential are identified. Our database is publicly available to serve regulators, retailers, manufacturers, and the public for predictive screening of chemicals in new and existing consumer products on the basis of exposure and risk.
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Affiliation(s)
- M-R Goldsmith
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States.
| | - C M Grulke
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - R D Brooks
- Student Services Contractor at U.S. EPA, RTP, NC, United States
| | - T R Transue
- Lockheed-Martin Information Technology, RTP, NC 27711, United States
| | - Y M Tan
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States.
| | - A Frame
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States; Oak Ridge Institute for Science and Education Fellow, United States
| | - P P Egeghy
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - R Edwards
- North Carolina State University, 2200 Hillsborough St., Raleigh, NC 27695, United States
| | - D T Chang
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - R Tornero-Velez
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - K Isaacs
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States.
| | - A Wang
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States; Oak Ridge Institute for Science and Education Fellow, United States
| | - J Johnson
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - K Holm
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - M Reich
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, United States
| | - J Mitchell
- Biosystems and Agricultural Engineering, Michigan State University, E. Lansing, MI 48824, United States
| | - D A Vallero
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - L Phillips
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - M Phillips
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - J F Wambaugh
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - R S Judson
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - T J Buckley
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
| | - C C Dary
- United States Environmental Protection Agency (U.S. EPA), Office of Research and Development, RTP, NC 27711, United States
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Vyskocil S, Smrcina M, Lorenc M, Tislerová I, Brooks RD, Kulagowski JJ, Langer V, Farrugia LJ, Kocovský P. Copper(II)-mediated oxidative coupling of 2-aminonaphthalene homologues. Competition between the straight dimerization and the formation of carbazoles. J Org Chem 2001; 66:1359-65. [PMID: 11312967 DOI: 10.1021/jo005691w] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Whereas the Cu(II)-mediated oxidative coupling of 2-aminonaphthalenes 7a and 7b results in the clean formation of 1,1'-binaphthyls 13a and 13b, respectively, their higher homologues and congeners 8-12 have been found to exhibit a different reaction pattern. Thus, 2-aminoanthracene (8) gave a approximately 1:1 mixture of the expected bianthryl derivative 15 and the carbazole 16, whereas the 9-aminophenanthrene (10), 3-phenyl-1-aminonaphthalene (11), and 2-aminochrysene (12) produced almost exclusively the corresponding carbazoles 19, 20, and 21, respectively. By contrast, the isomeric 3-aminophenanthrene (9) gave rise to the azo compound 17 as a result of the preferential oxidation on the nitrogen. The carbazoles have been shown to arise directly from the coupling reactions rather than from the primarily formed binaphthyls. Alternatively, carbazole 19 can also be prepared from 1b on reaction with hydrazine. On the other hand, treatment of 3a with hydrazine resulted in the formation of a approximately 2:7 mixture of amine 11 and arylhydrazine 22. 2,2'-Diamino-1,1'-bianthryl (15) has been resolved into enantiomers via cocrystallization with (-)-N-benzylcinchonidinium chloride and shown to have (R)-(-)-15 configuration by X-ray crystallography.
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Affiliation(s)
- S Vyskocil
- Department of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK
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Abstract
We replicated prior research on Rorschach and MMPI-2 convergent validity by testing 8 hypotheses in a new sample of patients. We also extended prior research by developing criteria to include more patients and by applying the same procedures to 2 self-report tests: the MMPI-2 and the MCMI-II. Results supported our hypotheses and paralleled the prior findings. Furthermore, 3 different tests for methodological artifacts could not account for the results. Thus, the convergence of Rorschach and MMPI-2 constructs seems to be partially a function of how patients interact with the tests. When patients approach each test with a similar style, conceptually aligned constructs tend to correlate. Although this result is less robust, when patients approach each test in an opposing manner, conceptually aligned constructs tend to be negatively correlated. When test interaction styles are ignored, MMPI-2 and Rorschach constructs tend to be uncorrelated, unless a sample just happens to possess a correlation between Rorschach and MMPI-2 stylistic variables. Remaining ambiguities and suggestions for further advances are discussed.
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Affiliation(s)
- G J Meyer
- Department of Psychology, University of Alaska Anchorage, USA.
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Brooks RD. Using a sequence of point optimal tests to select a varying coefficient model. COMMUN STAT-SIMUL C 1997. [DOI: 10.1080/03610919708813404] [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]
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Farengo R, Brooks RD. Current limit in Ohmically heated high‐beta plasmas: Application to field reversed configurations. ACTA ACUST UNITED AC 1991. [DOI: 10.1063/1.859950] [Citation(s) in RCA: 5] [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: 11/14/2022]
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Brooks RD, Glover GH, Talbert AJ, Eisner RL, DiBianca FA. Aliasing: a source of streaks in computed tomograms. J Comput Assist Tomogr 1979; 3:511-8. [PMID: 457965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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