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Suydam C, Chibane F, Brown N, Schlafly M, Arnold AH, Ghleilib I, Easley M, White J. ASO Visual Abstract: Are There more HER2 FISH in the Sea? An Institution's Experience in Identifying HER2 Positivity by Using Fluorescent In Situ Hybridization in Patients with HER2-Negative Immunohistochemistry. Ann Surg Oncol 2024; 31:1660. [PMID: 38066309 DOI: 10.1245/s10434-023-14598-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Affiliation(s)
- Camille Suydam
- Department of Surgery, Eisenhower Army Medical Center, Augusta, USA.
| | - Fairouz Chibane
- Department of Surgery, Medical College of Georgia at Augusta University Health, Augusta, USA
| | - Nicole Brown
- Department of Surgery, Medical College of Georgia at Augusta University Health, Augusta, USA
| | - Madeleine Schlafly
- Department of Surgery, Medical College of Georgia at Augusta University Health, Augusta, USA
| | - Alicia H Arnold
- Department of Surgery, Medical College of Georgia at Augusta University Health, Augusta, USA
| | - Intisar Ghleilib
- Department of Pathology, Medical College of Georgia at Augusta University Health, Augusta, USA
| | - Melissa Easley
- Department of Surgery, Medical College of Georgia at Augusta University Health, Augusta, USA
| | - Joseph White
- Department of Pathology, Medical College of Georgia at Augusta University Health, Augusta, USA
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Suydam C, Chibane F, Brown N, Schlafly M, Arnold AH, Ghleilib I, Easley M, White J. Are There More HER2 FISH in the Sea? An Institution's Experience in Identifying HER2 Positivity Using Fluorescent In Situ Hybridization in Patients with HER2 Negative Immunohistochemistry. Ann Surg Oncol 2024; 31:376-381. [PMID: 37936021 PMCID: PMC10695864 DOI: 10.1245/s10434-023-14439-7] [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: 04/04/2022] [Accepted: 09/27/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Approximately 20% of breast cancers express HER2-positive receptors in the USA. HER2 receptor immunohistochemistry (IHC) staining with equivocal (2+) results commonly undergoes fluorescence in-situ hybridization (FISH) for further classification. Current guidelines do not recommend routine FISH testing in IHC-negative (0 or 1+) cases. This study investigates an institution that performs both IHC and FISH testing on all cases to identify the true HER2-positive rate. PATIENTS AND METHODS A retrospective chart review from 2015 to 2021 was conducted at an institution where both HER2 IHC and FISH testing were performed at the time of diagnosis for all invasive breast cancers. The rate of true HER2-positive patients was determined, and patient and tumor characteristics were further explored. RESULTS A total of 1835 invasive breast cancer cases were primarily treated at this institution. A total of 289 cases were HER2 positive on IHC and FISH testing (15.7%). An additional 38 cases were identified as HER2 negative on IHC, but reclassified as HER2 positive on reflex FISH testing. Total HER2 positive cases increased from 289 (15.7%) to 327 cases (17.8%) with reflex FISH testing. CONCLUSIONS The additional HER2-positive cases after completing FISH testing on IHC-negative tumors suggests there may be a role for routine FISH testing in addition to standard IHC staining to determine HER2 status for breast cancer. The ethical, prognostic and even benefits of a correct diagnosis outweigh the added expense of FISH testing.
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Affiliation(s)
- Camille Suydam
- Department of Surgery, Eisenhower Army Medical Center, Fort Gordon, GA, USA.
| | - Fairouz Chibane
- Department of Surgery, Medical College of Georgia at Augusta Health, Augusta, GA, USA
| | - Nicole Brown
- Department of Surgery, Medical College of Georgia at Augusta Health, Augusta, GA, USA
| | - Madeleine Schlafly
- Department of Surgery, Medical College of Georgia at Augusta Health, Augusta, GA, USA
| | - Alicia H Arnold
- Department of Surgery, Medical College of Georgia at Augusta Health, Augusta, GA, USA
| | - Intisar Ghleilib
- Department of Pathology, Medical College of Georgia at Augusta Health, Augusta, GA, USA
| | - Melissa Easley
- Department of Surgery, Medical College of Georgia at Augusta Health, Augusta, GA, USA
| | - Joseph White
- Department of Pathology, Medical College of Georgia at Augusta Health, Augusta, GA, USA
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Khodadadi H, Salles ÉL, Jarrahi A, Chibane F, Costigliola V, Yu JC, Vaibhav K, Hess DC, Dhandapani KM, Baban B. Cannabidiol Modulates Cytokine Storm in Acute Respiratory Distress Syndrome Induced by Simulated Viral Infection Using Synthetic RNA. Cannabis Cannabinoid Res 2020; 5:197-201. [PMID: 32923657 PMCID: PMC7480719 DOI: 10.1089/can.2020.0043] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [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] [Indexed: 02/06/2023] Open
Abstract
Introduction: In the absence of effective antivirals and vaccination, the pandemic of COVID-19 remains the most significant challenge to our health care system in decades. There is an urgent need for definitive therapeutic intervention. Clinical reports indicate that the cytokine storm associated with acute respiratory distress syndrome (ARDS) is the leading cause of mortality in severe cases of some respiratory viral infections, including COVID-19. In recent years, cannabinoids have been investigated extensively due to their potential effects on the human body. Among all cannabinoids, cannabidiol (CBD) has demonstrated potent anti-inflammatory effects in a variety of pathological conditions. Therefore, it is logical to explore whether CBD can reduce the cytokine storm and treat ARDS. Materials and Methods: In this study, we show that intranasal application of Poly(I:C), a synthetic analogue of viral double-stranded RNA, simulated symptoms of severe viral infections inducing signs of ARDS and cytokine storm. Discussion: The administration of CBD downregulated the level of proinflammatory cytokines and ameliorated the clinical symptoms of Poly I:C-induced ARDS. Conclusion: Our results suggest a potential protective role for CBD during ARDS that may extend CBD as part of the treatment of COVID-19 by reducing the cytokine storm, protecting pulmonary tissues, and re-establishing inflammatory homeostasis.
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Affiliation(s)
- Hesam Khodadadi
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA
- Center for Excellence in Research, Scholarship and Innovation, Dental College of Georgia, Augusta, Augusta University, Augusta, Georgia, USA
| | - Évila Lopes Salles
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA
- Center for Excellence in Research, Scholarship and Innovation, Dental College of Georgia, Augusta, Augusta University, Augusta, Georgia, USA
| | - Abbas Jarrahi
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Fairouz Chibane
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | | | - Jack C. Yu
- Children's Hospital of Georgia, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Kumar Vaibhav
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - David C. Hess
- Department of Neurology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Krishnan M. Dhandapani
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA
- Center for Excellence in Research, Scholarship and Innovation, Dental College of Georgia, Augusta, Augusta University, Augusta, Georgia, USA
- Department of Neurology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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Wang Z, Tsai LK, Munasinghe J, Leng Y, Fessler EB, Chibane F, Leeds P, Chuang DM. Chronic valproate treatment enhances postischemic angiogenesis and promotes functional recovery in a rat model of ischemic stroke. Stroke 2012; 43:2430-6. [PMID: 22811460 DOI: 10.1161/strokeaha.112.652545] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND PURPOSE Enhanced angiogenesis facilitates neurovascular remodeling processes and promotes brain functional recovery after stroke. Previous studies from our laboratory demonstrated that valproate (VPA), a histone deacetylase inhibitor, protects against experimental brain ischemia. The present study investigated whether VPA could enhance angiogenesis and promote long-term functional recovery after ischemic stroke. METHODS Male rats underwent middle cerebral artery occlusion for 60 minutes followed by reperfusion for up to 14 days. Assessed parameters were: locomotor function through the Rotarod test; infarct volume through T2-weighted MRI; microvessel density through immunohistochemistry; relative cerebral blood flow through perfusion-weighted imaging; protein levels of proangiogenic factors through Western blotting; and matrix metalloproteinase-2/9 activities through gelatin zymography. RESULTS Postischemic VPA treatment robustly improved the Rotarod performance of middle cerebral artery occlusion rats on Days 7 and 14 after ischemia and significantly reduced brain infarction on Day 14. Concurrently, VPA markedly enhanced microvessel density, facilitated endothelial cell proliferation, and increased relative cerebral blood flow in the ipsilateral cortex. The transcription factor hypoxia-inducible factor-1α and its downstream proangiogenic factors, vascular endothelial growth factor and matrix metalloproteinase-2/9, were upregulated after middle cerebral artery occlusion and significantly potentiated by VPA in the ipsilateral cortex. Acetylation of histone-H3 and H4 was robustly increased by chronic VPA treatment. The beneficial effects of VPA on Rotarod performance and microvessel density were abolished by hypoxia-inducible factor-1α inhibition. CONCLUSIONS Chronic VPA treatment enhances angiogenesis and promotes functional recovery after brain ischemia. These effects may involve histone deacetylase inhibition and upregulation of hypoxia-inducible factor-1α and its downstream proangiogenic factors vascular endothelial growth factor and matrix metalloproteinase-2/9.
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Affiliation(s)
- Zhifei Wang
- Molecular Neurobiology Section, NIMH, NIH, 10 Center Drive, MSC 1363, Bethesda, MD 20892-1363, USA
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