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Naeem A, Knoer G, Avantaggiati ML, Rodriguez O, Albanese C. Provocative non-canonical roles of p53 and AKT signaling: A role for Thymosin β4 in medulloblastoma. Int Immunopharmacol 2023; 116:109785. [PMID: 36720193 DOI: 10.1016/j.intimp.2023.109785] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/30/2023]
Abstract
The PI3K/AKT and p53 pathways are key regulators of cancer cell survival and death, respectively. Contrary to their generally accepted roles, several lines of evidence, including ours in medulloblastoma, the most common childhood brain cancer, highlight non-canonical functions for both proteins and show a complex context-dependent dynamic behavior in determining cell fate. Interestingly, p53-mediated cell survival and AKT-mediated cell death can dominate in certain conditions, and these interchangeable physiological functions may potentially be manipulated for better clinical outcomes. This review article presents studies in which p53 and AKT behave contrary to their well-established functions. We discuss the factors and circumstances that may be involved in mediating these changes and the implications of these unique roles of p53 and AKT in devising therapeutic strategies. Lastly, based on our recent finding of Thymosin beta 4-mediated chemosensitivity via an AKT-p53 interaction in medulloblastoma cells, we also discuss the possible implications of Thymosin beta-4 in enhancing drug sensitivity in this deadly childhood disease.
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Affiliation(s)
- Aisha Naeem
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; Health Research Governance Department, Ministry of Public Health, Qatar.
| | - Grace Knoer
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Maria Laura Avantaggiati
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Olga Rodriguez
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; Center for Translational Imaging, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Chris Albanese
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; Department of Radiology, Georgetown University Medical Center, Washington, DC 20057, USA; Center for Translational Imaging, Georgetown University Medical Center, Washington, DC 20057, USA.
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Saker Z, Rizk M, Bahmad HF, Nabha SM. Targeting Angiogenic Factors for the Treatment of Medulloblastoma. Curr Treat Options Oncol 2022; 23:864-886. [PMID: 35412196 DOI: 10.1007/s11864-022-00981-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2022] [Indexed: 11/24/2022]
Abstract
OPINION STATEMENT Medulloblastoma (MB) is the most frequent pediatric brain tumor. Despite conventional therapy, MB patients have high mortality and morbidity rates mainly due to the incomplete understanding of the molecular and cellular processes involved in development of this cancer. Similar to other solid tumors, MB demonstrated high endothelial cell proliferation and angiogenic activity, wherein new blood vessels arise from the pre-existing vasculature, a process named angiogenesis. MB angiogenesis is considered a hallmark for MB development, progression, and metastasis emphasizing its potential target for antitumor therapy. However, angiogenesis is tightly regulated by a set of angiogenic factors making it a complex process to be targeted. Although agents targeting these factors and their receptors are early in development, the potential for their targeting may translate into improvement in the clinical care for MB patients. In this review, we focus on the most potent angiogenic factors and their corresponding receptors, highlighting their basic properties and expression in MB. We describe their contribution to MB tumorigenesis and angiogenesis and the potential therapeutic targeting of these factors.
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Affiliation(s)
- Zahraa Saker
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
| | - Mahdi Rizk
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
| | - Hisham F Bahmad
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, 33140, USA.
| | - Sanaa M Nabha
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon.
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Naeem A, Harish V, Coste S, Parasido EM, Choudhry MU, Kromer LF, Ihemelandu C, Petricoin EF, Pierobon M, Noon MS, Yenugonda VM, Avantaggiati M, Kupfer GM, Fricke S, Rodriguez O, Albanese C. Regulation of Chemosensitivity in Human Medulloblastoma Cells by p53 and the PI3 Kinase Signaling Pathway. Mol Cancer Res 2022; 20:114-126. [PMID: 34635507 PMCID: PMC8738155 DOI: 10.1158/1541-7786.mcr-21-0277] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/06/2021] [Accepted: 10/04/2021] [Indexed: 01/07/2023]
Abstract
In medulloblastoma, p53 expression has been associated with chemoresistance and radiation resistance and with poor long-term outcomes in the p53-mutated sonic hedgehog, MYC-p53, and p53-positive medulloblastoma subgroups. We previously established a direct role for p53 in supporting drug resistance in medulloblastoma cells with high basal protein expression levels (D556 and DAOY). We now show that p53 genetic suppression in medulloblastoma cells with low basal p53 protein expression levels (D283 and UW228) significantly reduced drug responsiveness, suggesting opposing roles for low p53 protein expression levels. Mechanistically, the enhanced cell death by p53 knockdown in high-p53 cells was associated with an induction of mTOR/PI3K signaling. Both mTOR inhibition and p110α/PIK3CA induction confirmed these findings, which abrogated or accentuated the enhanced chemosensitivity response in D556 cells respectively while converse was seen in D283 cells. Co-treatment with G-actin-sequestering peptide, thymosin β4 (Tβ4), induced p-AKTS473 in both p53-high and p53-low cells, enhancing chemosensitivity in D556 cells while enhancing chemoresistance in D283 and UW228 cells. IMPLICATIONS: Collectively, we identified an unexpected role for the PI3K signaling in enhancing cell death in medulloblastoma cells with high basal p53 expression. These studies indicate that levels of p53 immunopositivity may serve as a diagnostic marker of chemotherapy resistance and for defining therapeutic targeting.
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Affiliation(s)
- Aisha Naeem
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC.,Health Research Governance Department, Ministry of Public Health, Doha, Qatar
| | - Varsha Harish
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Sophie Coste
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Erika M. Parasido
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Muhammad Umer Choudhry
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Lawrence F. Kromer
- Department of Neuroscience, Georgetown University Medical Center, Washington, DC
| | - Chukuemeka Ihemelandu
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Emanuel F. Petricoin
- George Mason University, Center for Applied Proteomics and Molecular Medicine, Manassas, Virginia
| | - Mariaelena Pierobon
- George Mason University, Center for Applied Proteomics and Molecular Medicine, Manassas, Virginia
| | | | | | - Maria Avantaggiati
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Gary M. Kupfer
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC.,Department of Pediatrics, Georgetown University Medical Center, Washington, DC
| | - Stanley Fricke
- Department of Radiology, Georgetown University Medical Center, Washington, DC.,Center for Translational Imaging, Georgetown University Medical Center, Washington, DC
| | - Olga Rodriguez
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC.,Center for Translational Imaging, Georgetown University Medical Center, Washington, DC
| | - Chris Albanese
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC.,Department of Radiology, Georgetown University Medical Center, Washington, DC.,Center for Translational Imaging, Georgetown University Medical Center, Washington, DC.,Corresponding Author: Chris Albanese, Department of OncologyGeorgetown University Medical Center, Lombardi Cancer Center, NRB W417, Washington, DC 20007. Phone: 202-687-3305; E-mail:
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Shin MC, Lee TK, Lee JC, Kim HI, Park CW, Cho JH, Kim DW, Ahn JH, Won MH, Lee CH. Therapeutic effects of stiripentol against ischemia-reperfusion injury in gerbils focusing on cognitive deficit, neuronal death, astrocyte damage and blood brain barrier leakage in the hippocampus. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY 2022; 26:47-57. [PMID: 34965995 PMCID: PMC8723979 DOI: 10.4196/kjpp.2022.26.1.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/23/2021] [Accepted: 11/30/2021] [Indexed: 11/15/2022]
Abstract
Stiripentol is an anti-epileptic drug for the treating of refractory status epilepticus. It has been reported that stiripentol can attenuate seizure severity and reduce seizure-induced neuronal damage in animal models of epilepsy. The objective of the present study was to investigate effects of post-treatment with stiripentol on cognitive deficit and neuronal damage in the cornu ammonis 1 (CA1) region of the hippocampus proper following transient ischemia in the forebrain of gerbils. To evaluate ischemia-induced cognitive impairments, passive avoidance test and 8-arm radial maze test were performed. It was found that post-treatment with stiripentol at 20 mg/kg, but not 10 or 15 mg/kg, reduced ischemia-induced memory impairment. Transient ischemia-induced neuronal death in the CA1 region was also significantly attenuated only by 20 mg/kg stiripentol treatment after transient ischemia. In addition, 20 mg/kg stiripentol treatment significantly decreased ischemia-induced astrocyte damage and immunoglobulin G leakage. In brief, stiripentol treatment after transient ischemia ameliorated transient ischemia-induced cognitive impairment in gerbils, showing that pyramidal neurons were protected and astrocyte damage and blood brain barrier leakage were significantly attenuated in the hippocampus. Results of this study suggest stiripentol can be developed as a candidate of therapeutic drug for ischemic stroke.
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Affiliation(s)
- Myoung Cheol Shin
- Department of Emergency Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon 24289, Korea
| | - Tae-Kyeong Lee
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jae-Chul Lee
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon 24341, Korea
| | - Hyung Il Kim
- Department of Emergency Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon 24289, Korea
- Department of Emergency Medicine, Dankook University Hospital, Dankook University College of Medicine, Cheonan 31116, Korea
| | - Chan Woo Park
- Department of Emergency Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon 24289, Korea
| | - Jun Hwi Cho
- Department of Emergency Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon 24289, Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangnung-Wonju National University, Gangneung 25457, Korea
| | - Ji Hyeon Ahn
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon 24341, Korea
- Department of Physical Therapy, College of Health Science, Youngsan University, Yangsan 50510, Korea
| | - Moo-Ho Won
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon 24341, Korea
| | - Choong-Hyun Lee
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan 31116, Korea
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Lee TK, Hong J, Lee JW, Kim SS, Sim H, Lee JC, Kim DW, Lim SS, Kang IJ, Won MH. Ischemia-Induced Cognitive Impairment Is Improved via Remyelination and Restoration of Synaptic Density in the Hippocampus after Treatment with COG-Up ® in a Gerbil Model of Ischemic Stroke. Vet Sci 2021; 8:vetsci8120321. [PMID: 34941848 PMCID: PMC8705370 DOI: 10.3390/vetsci8120321] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 12/13/2022] Open
Abstract
Cerebrovascular disease such as ischemic stroke develops cognitive impairment due to brain tissue damage including neural loss, demyelination and decrease in synaptic density. In the present study, we developed transient ischemia in the forebrain of the gerbil and found cognitive impairment using the Barnes maze test and passive avoidance test for spatial memory and learning memory, respectively. In addition, neuronal loss/death was detected in the Cornu Ammonis 1 (CA1) region of the gerbil hippocampus after the ischemia by cresyl violet histochemistry, immunohistochemistry for neuronal nuclei and histofluorescence with Fluoro-Jade B. Furthermore, in the CA1 region following ischemia, myelin and vesicular synaptic density were significantly decreased using immunohistochemistry for myelin basic protein and vesicular glutamate transporter 1. In the gerbils, treatment with COG-up® (a combined extract of Erigeron annuus (L.) Pers. and Brassica oleracea Var.), which was rich in scutellarin and sinapic acid, after the ischemia, significantly improved ischemia-induced decline in memory function when compared with that shown in gerbils treated with vehicle after the ischemia. In the CA1 region of these gerbils, COG-up® treatment significantly promoted the remyelination visualized using immunohistochemistry myelin basic protein, increased oligodendrocytes visualized using a receptor-interacting protein, and restored the density of glutamatergic synapses visualized using double immunofluorescence for vesicular glutamate transporter 1 and microtubule-associated protein, although COG-up® treatment did not protect pyramidal cells (principal neurons) located in the CA1 region form the ischemic insult. Considering the current findings, a gerbil model of ischemic stroke apparently showed cognitive impairment accompanied by ischemic injury in the hippocampus; also, COG-up® can be employed for improving cognitive decline following ischemia-reperfusion injury in brains.
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Affiliation(s)
- Tae-Kyeong Lee
- Department of Food Science and Nutrition, Hallym University, Chuncheon 24252, Korea; (T.-K.L.); (S.S.L.)
| | - Junkee Hong
- Department of Global Innovative Drug, Chung-Ang University, Seoul 06974, Korea;
| | - Ji-Won Lee
- Famenity Co., Ltd., Uiwang 16006, Korea; (J.-W.L.); (S.-S.K.)
| | - Sung-Su Kim
- Famenity Co., Ltd., Uiwang 16006, Korea; (J.-W.L.); (S.-S.K.)
| | - Hyejin Sim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 24341, Korea; (H.S.); (J.-C.L.)
| | - Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 24341, Korea; (H.S.); (J.-C.L.)
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Kangnung-Wonju National University, Gangneung 25457, Korea;
| | - Soon Sung Lim
- Department of Food Science and Nutrition, Hallym University, Chuncheon 24252, Korea; (T.-K.L.); (S.S.L.)
| | - Il Jun Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon 24252, Korea; (T.-K.L.); (S.S.L.)
- Correspondence: (I.J.K.); (M.-H.W.); Tel.: +82-33-248-2135 (I.J.K.); +82-33-250-8891 (M.-H.W.); Fax: +82-33-255-4787 (I.J.K.); +82-33-256-1614 (M.-H.W.)
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 24341, Korea; (H.S.); (J.-C.L.)
- Correspondence: (I.J.K.); (M.-H.W.); Tel.: +82-33-248-2135 (I.J.K.); +82-33-250-8891 (M.-H.W.); Fax: +82-33-255-4787 (I.J.K.); +82-33-256-1614 (M.-H.W.)
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Therapeutic Effects of Decursin and Angelica gigas Nakai Root Extract in Gerbil Brain after Transient Ischemia via Protecting BBB Leakage and Astrocyte Endfeet Damage. Molecules 2021; 26:molecules26082161. [PMID: 33918660 PMCID: PMC8069195 DOI: 10.3390/molecules26082161] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 12/16/2022] Open
Abstract
Angelica gigas Nakai root contains decursin which exerts beneficial properties such as anti-amnesic and anti-inflammatory activities. Until now, however, the neuroprotective effects of decursin against transient ischemic injury in the forebrain have been insufficiently investigated. Here, we revealed that post-treatment with decursin and the root extract saved pyramidal neurons in the hippocampus following transient ischemia for 5 min in gerbil forebrain. Through high-performance liquid chromatography, we defined that decursin was contained in the extract as 7.3 ± 0.2%. Based on this, we post-treated with 350 mg/kg of extract, which is the corresponding dosage of 25 mg/kg of decursin that exerted neuroprotection in gerbil hippocampus against the ischemia. In addition, behavioral tests were conducted to evaluate ischemia-induced dysfunctions via tests of spatial memory (by the 8-arm radial maze test) and learning memory (by the passive avoidance test), and post-treatment with the extract and decursin attenuated ischemia-induced memory impairments. Furthermore, we carried out histochemistry, immunohistochemistry, and double immunohistofluorescence. Pyramidal neurons located in the subfield cornu ammonis 1 (CA1) among the hippocampal subfields were dead at 5 days after the ischemia; however, treatment with the extract and decursin saved the pyramidal neurons after ischemia. Immunoglobulin G (IgG, an indicator of extravasation), which is not found in the parenchyma in normal brain tissue, was apparently shown in CA1 parenchyma from 2 days after the ischemia, but IgG leakage was dramatically attenuated in the CA1 parenchyma treated with the extract and decursin. Furthermore, astrocyte endfeet, which are a component of the blood–brain barrier (BBB), were severely damaged at 5 days after the ischemia; however, post-treatment with the extract and decursin dramatically attenuated the damage of the endfeet. In brief, therapeutic treatment of the extract of Angelica gigas Nakai root and decursin after 5 min transient forebrain ischemia protected hippocampal neurons from the ischemia, showing that ischemia-induced BBB leakage and damage of astrocyte endfeet was significantly attenuated by the extract and decursin. Based on these findings, we suggest that Angelica gigas Nakai root containing decursin can be employed as a pharmaceutical composition to develop a therapeutic strategy for brain ischemic injury.
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Yoo YH, Kim DW, Chen BH, Sim H, Kim B, Lee JC, Ahn JH, Park Y, Cho JH, Kang IJ, Won MH, Lee TK. Comparison of age-dependent alterations in thioredoxin 2 and thioredoxin reductase 2 expressions in hippocampi between mice and rats. Lab Anim Res 2021; 37:11. [PMID: 33676586 PMCID: PMC7937215 DOI: 10.1186/s42826-021-00088-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/25/2021] [Indexed: 11/10/2022] Open
Abstract
Background Aging is one of major causes triggering neurophysiological changes in many brain substructures, including the hippocampus, which has a major role in learning and memory. Thioredoxin (Trx) is a class of small redox proteins. Among the Trx family, Trx2 plays an important role in the regulation of mitochondrial membrane potential and is controlled by TrxR2. Hitherto, age-dependent alterations in Trx2 and TrxR2 in aged hippocampi have been poorly investigated. Therefore, the aim of this study was to examine changes in Trx2 and TrxR2 in mouse and rat hippocampi by age and to compare their differences between mice and rats. Results Trx2 and TrxR2 levels using Western blots in mice were the highest at young age and gradually reduced with time, showing that no significant differences in the levels were found between the two subfields. In rats, however, their expression levels were the lowest at young age and gradually increased with time. Nevertheless, there were no differences in cellular distribution and morphology in their hippocampi when it was observed by cresyl violet staining. In addition, both Trx2 and TrxR2 immunoreactivities in the CA1-3 fields were mainly shown in pyramidal cells (principal cells), showing that their immunoreactivities were altered like changes in their protein levels. Conclusions Our current findings suggest that Trx2 and TrxR2 expressions in the brain may be different according to brain regions, age and species. Therefore, further studies are needed to examine the reasons of the differences of Trx2 and TrxR2 expressions in the hippocampus between mice and rats.
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Affiliation(s)
- Yeon Ho Yoo
- Department of Emergency Medicine, Institute of Medical Sciences, School of Medicine, Kangwon National University Hospital, Kangwon National University, 24289, Chuncheon, Gangwon, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangnung-Wonju National University, 25457, Gangneung, Gangwon, Republic of Korea
| | - Bai Hui Chen
- Department of Histology and Embryology, Institute of Neuroscience, Wenzhou Medical University, 325035, Wenzhou, Zhejiang, P.R. China
| | - Hyejin Sim
- Department of Neurobiology, School of Medicine, Kangwon National University, 24341, Chuncheon, Gangwon, Republic of Korea
| | - Bora Kim
- Department of Neurobiology, School of Medicine, Kangwon National University, 24341, Chuncheon, Gangwon, Republic of Korea
| | - Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, 24341, Chuncheon, Gangwon, Republic of Korea
| | - Ji Hyeon Ahn
- Department of Neurobiology, School of Medicine, Kangwon National University, 24341, Chuncheon, Gangwon, Republic of Korea.,Department of Physical Therapy, College of Health Science, Youngsan University, 50510, Yangsan, Gyeongnam, Republic of Korea
| | - Yoonsoo Park
- Department of Emergency Medicine, Institute of Medical Sciences, School of Medicine, Kangwon National University Hospital, Kangwon National University, 24289, Chuncheon, Gangwon, Republic of Korea
| | - Jun Hwi Cho
- Department of Emergency Medicine, Institute of Medical Sciences, School of Medicine, Kangwon National University Hospital, Kangwon National University, 24289, Chuncheon, Gangwon, Republic of Korea
| | - Il Jun Kang
- Department of Food Science and Nutrition, Hallym University, 24252, Chuncheon, Gangwon, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, 24341, Chuncheon, Gangwon, Republic of Korea.
| | - Tae-Kyeong Lee
- Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, 24252, Chuncheon, Gangwon, Republic of Korea.
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An immunohistochemical study of HER2 expression in primary brain tumors. Biomedicine (Taipei) 2020; 10:21-27. [PMID: 33854909 PMCID: PMC7608844 DOI: 10.37796/2211-8039.1001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 08/18/2019] [Indexed: 12/24/2022] Open
Abstract
Background Primary brain tumors (PBTs) include any tumor in the brain whose prognosis is weak because of their histological characteristics. Aim Herein, this study aimed to assess the HER2 tumor marker frequency in PBTs. Materials and methods This study was done on the samples of primary brain tumor diagnosis from 2008 to 2015. Results Out of 107 patients of brain tumor that had a mean age of 40.4 years (61.7% men), the most common location of the tumor was in the supratentorial region (63.85% cases). The prevalence of high-grade astrocytoma (HGA) and low-grade astrocytoma (LGA) at diagnosis was 43.9% and 37.4%, respectively. With regard to HER2 score, HER2-positive (scores 2 & 3) was in 42.1% of patients. On the other hand, HER2-negative (−) was in 57.9%, 2+ in 33.6%, and 3+ in 8.4% of patients. The patients of LGA had significantly younger ages, lower HER2 positivity, and lower HER2 percent compared with the HGA patients. Conclusions The type of brain tumors can impact on HER2 expression that high HER2 expression in HGA may be helpful for therapeutic aims. Further studies are required to support these results with a higher volume of patients in the world.
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Zulkarnaien B, Suharlim E, Susanto E, Gondhowiardjo SA. Multifocal recurrence of medulloblastoma: a long follow-up case study. MEDICAL JOURNAL OF INDONESIA 2020. [DOI: 10.13181/mji.cr.193480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Medulloblastoma is the most common malignant brain tumor in pediatric patients. Leptomeningeal dissemination often occurs in the spinal canal and rarely into the supratentorial as an extra-axial lesion. This study followed an 8-year progression of multifocal medulloblastoma recurrence as supratentorial metastasis that mimics an intra-axial mass of the temporal lobe. Pathologic examination of the temporal mass showed densely packed small round blue cells that are distributed in a ribboning pattern with areas of necrosis, rosette formation, and mitosis. Ki-67 immunohistochemical staining of the tumor showed a high proliferation index of 40% and revealed positive results for synaptophysin and negative results for glial fibrillary acidic protein and β-catenin. A long follow-up is essential to diagnose the recurrence and elucidate the progression of medulloblastoma.
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Zhao F, Zhang J, Li P, Zhou Q, Zhang S, Zhao C, Wang B, Yang Z, Li C, Liu P. Prognostic value of Ki-67 index in adult medulloblastoma after accounting for molecular subgroup: a retrospective clinical and molecular analysis. J Neurooncol 2018; 139:333-340. [PMID: 29687281 DOI: 10.1007/s11060-018-2865-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/08/2018] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Medulloblastoma (MB) is a rare primary brain tumor in adults. We previously evaluated that combining both clinical and molecular classification could improve current risk stratification for adult MB. In this study, we aimed to identify the prognostic value of Ki-67 index in adult MB. METHOD Ki-67 index of 51 primary adult MBs was reassessed using a computer-based image analysis (Image-Pro Plus). All patients were followed up ranging from 12 months up to 15 years. Gene expression profiling and immunochemistry were used to establish the molecular subgroups in adult MB. Combined risk stratification models were designed based on clinical characteristics, molecular classification and Ki-67 index, and identified by multivariable Cox proportional hazards analysis. RESULTS In our cohort, the mean Ki-67 value was 30.0 ± 11.3% (range 6.56-63.55%). The average Ki-67 value was significantly higher in LC/AMB than in CMB and DNMB (P = .001). Among three molecular subgroups, Group 4-tumors had the highest average Ki-67 value compared with WNT- and SHH-tumors (P = .004). Patients with Ki-67 index large than 30% displayed poorer overall survival (OS) and progression free survival (PFS) than those with Ki-67 less than 30% (OS: P = .001; PFS: P = .006). Ki-67 index (i.e. > 30%, < 30%) was identified as an independent significant prognostic factor (OS: P = .017; PFS: P = .024) by using multivariate Cox proportional hazards model. CONCLUSIONS In conclusion, Ki-67 index can be considered as a valuable independent prognostic biomarker for adult patients with MB.
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Affiliation(s)
- Fu Zhao
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China.
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.
| | - Jing Zhang
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China
| | - Peng Li
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China
| | - Qiangyi Zhou
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China
| | - Shun Zhang
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China
| | - Chi Zhao
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China
| | - Bo Wang
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China
| | - Zhijun Yang
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China
| | - Chunde Li
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China
| | - Pinan Liu
- Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, No. 6 Tiantan Xili, Dongcheng District, Beijing, China.
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.
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11
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Sharma V, Shoaib Y, Gupta LN, Dagar A. P53 and Ki-67 Expression in Primary Pediatric Brain Tumors: Does it Correlate with Presentation, Histological Grade, and Outcome? Asian J Neurosurg 2018; 13:1026-1032. [PMID: 30459861 PMCID: PMC6208193 DOI: 10.4103/ajns.ajns_69_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Context: Pediatric brain tumors are a vexing problem for the neurosurgeon due to the fragile patient cohort. We attempt to find parameters which can help us to treat and prognosticate these patients in a better way. Aims: This study aims to correlate clinical presentation, outcome, and histological grade with P53 and Ki-67 expression in primary pediatric brain tumors. Setting Design: This was a prospective, observational study. Patients and Methods: Forty-seven patients with primary brain tumors in the age group 0–18 years were included in this study. Clinical presentation was noted. Patients were operated, and specimen was sent for histopathological and immunohistochemistry examination for p53 and Ki-67. The WHO classification of 2007 was used to grade the tumors. Follow-up was done at 3 and 6 months with Glasgow outcome score. Expression of p53 and Ki-67 in different tumors was correlated with clinical presentation, tumor grade and outcome. Analysis Method: Statistical Package for Social Science version 17. P < 0.05 was considered statistically significant. Results: There was statistically significant correlation between high tumor grade and high Ki-67 levels (P = 0.000). On post hoc analysis, there was a significant difference between p53 levels in Grade 1 and Grade 4 tumors. There was statistically significant correlation between neurological deficit and higher p53 levels (P = 0.040). There was statistically significant correlation between poor outcome and higher p53 (P = 0.034) and Ki-67 (P = 0.000) levels at 3 months follow-up which continued at 6 months. Conclusions: From this study, we conclude that p53 and Ki-67 expression in pediatric brain tumors is associated with poor outcome and correlates with tumor grade. Moreover, p53 expression correlates with neurological deficit.
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Affiliation(s)
- Vikas Sharma
- Department of Neurosurgery, PGIMER and Dr RML Hospital, New Delhi, India
| | - Yawar Shoaib
- Department of Neurosurgery, PGIMER and Dr RML Hospital, New Delhi, India
| | | | - Amit Dagar
- Department of Neurosurgery, PGIMER and Dr RML Hospital, New Delhi, India
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12
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Patel SK, Leong R, Zhao H, Barone A, Casey D, Liu Q, Burckart GJ, Reaman G. Pediatric Development of Molecularly Targeted Oncology Drugs. Clin Pharmacol Ther 2017; 104:384-389. [DOI: 10.1002/cpt.942] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shivam Kamlesh Patel
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
- University of North Carolina at Chapel Hill; Chapel Hill North Carolina USA
| | - Ruby Leong
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
| | - Hong Zhao
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
| | - Amy Barone
- Office of Hematology and Oncology Products, Office of New Drugs, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
| | - Denise Casey
- Office of Hematology and Oncology Products, Office of New Drugs, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
| | - Qi Liu
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
| | - Gilbert J. Burckart
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
| | - Gregory Reaman
- Office of Hematology and Oncology Products, Office of New Drugs, Center for Drug Evaluation and Research; Food and Drug Administration; Silver Spring Maryland USA
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13
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Yoon JH, Park KD, Kang HJ, Kim H, Lee JW, Kim SK, Wang KC, Park SH, Kim IH, Shin HY. Treatment of pediatric average-risk medulloblastoma using craniospinal irradiation less than 2500 cGy and chemotherapy: single center experience in Korea. World J Pediatr 2017; 13:367-373. [PMID: 28550392 DOI: 10.1007/s12519-017-0044-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/30/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND Although craniospinal irradiation (CSI) of 2340 cGy plus tumor booster with chemotherapy have been established as a standard treatment of childhood average-risk (AvR) medulloblastoma (MBL) in Western counties, there are a few recent reports in outcomes of AvR MBL using this strategy in Korean and other Asian children. We investigated the outcome of the Korean children with AvR MBL who were treated with CSI <2500 cGy and chemotherapy. METHODS Between January 2001 and December 2010, clinical characteristics and outcomes of 42 patients who were diagnosed with AvR MBL postoperatively and treated with radiation including CSI <2500 cGy and chemotherapy in Seoul National University Children's Hospital were analyzed. RESULTS Their median age was 9 years (range: 3-18.8), and 29 were male. Histological subtypes were classic type in 28 patients, nodular/desmoplastic in 7, and large cell/anaplastic (LCA) in 7. All the patients received adjuvant radiotherapy (CSI with median 2340 cGy and booster) and multiagent chemotherapy as the first-line treatment. With a median follow-up of 54 months, 12 patients experienced relapse or progression of the tumor. The 3- and 5-year disease-free survival (DFS) rates were 78.0%±6.5% and 75.0%±6.9%, respectively, and overall survival (OS) rates were 85.3%±5.6% and 76.8%±6.9%, respectively. The LCA subtype was associated with poorer DFS (P=0.023) and OS (P=0.008), compared with non-LCA subtypes. CONCLUSIONS The outcomes of children and adolescents with AvR MBL treated with radiation including CSI <2500 cGy and chemotherapy, are compatible to those in Western countries; however, the LCA subtype has a poor outcome with this strategy.
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Affiliation(s)
- Jong Hyung Yoon
- Department of Pediatrics, Cancer Research Institute, New York, USA.,Department of Pediatrics, Hallym University College of medicine, Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Kyung Duk Park
- Department of Pediatrics, Cancer Research Institute, New York, USA
| | - Hyoung Jin Kang
- Department of Pediatrics, Cancer Research Institute, New York, USA
| | - Hyery Kim
- Department of Pediatrics, Cancer Research Institute, New York, USA
| | - Ji Won Lee
- Department of Pediatrics, Cancer Research Institute, New York, USA
| | - Seung-Ki Kim
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea
| | - Kyu-Chang Wang
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea
| | - Sung-Hye Park
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Il Han Kim
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
| | - Hee Young Shin
- Department of Pediatrics, Cancer Research Institute, New York, USA. .,Division of Hematology/Oncology, Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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14
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Ide T, Moriyama A, Uchida K, Chambers JK, Okazaki T, Kobayashi K, Nakatsuji S, Matsumoto M. Neuroblastoma at the trigeminal nerve in a cynomolgus monkey (Macaca fascicularis). J Toxicol Pathol 2016; 29:191-4. [PMID: 27559245 PMCID: PMC4963618 DOI: 10.1293/tox.2016-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 03/18/2016] [Indexed: 11/19/2022] Open
Abstract
A male cynomolgus monkey (Macaca fascicularis) of 5 years and 11 months
of age from the vehicle control group of a 4-week repeated oral dose toxicity study had a
spontaneously occurring mass lesion directly attached to the proximal part of the left
trigeminal nerve. Histologically, the mass was characterized by a multifocal nodular
appearance. Nodular zones showed low to moderate cellularity and were composed of small
round cells exhibiting nuclear uniformity. On the other hand, inter-nodular zones were
composed of nerve fiber containing septa and closely aggregated highly pleomorphic cells.
Immunohistochemically, the small round cells were strongly immunopositive for
synaptophysin, neuN, and class III beta-tubulin, while the highly pleomorphic cells were
weakly immunopositive for neuN and occasionally immunopositive for class III beta-tubulin
and doublecortin, suggesting that the tumor had originated from a neuronal lineage cell.
Based on these findings, the mass was diagnosed as a neuroblastoma at the trigeminal
nerve.
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Affiliation(s)
- Tetsuya Ide
- Drug Safety Research Labs, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba-shi, Ibaraki, 305-8585, Japan
| | - Akiko Moriyama
- Drug Safety Research Laboratories, Shin Nippon Biomedical Laboratories, Ltd., 2438 Miyanoura, Kagoshima 891-1394, Japan
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - James K Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Takanobu Okazaki
- Drug Safety Research Laboratories, Shin Nippon Biomedical Laboratories, Ltd., 2438 Miyanoura, Kagoshima 891-1394, Japan
| | - Kinji Kobayashi
- Drug Safety Research Laboratories, Shin Nippon Biomedical Laboratories, Ltd., 2438 Miyanoura, Kagoshima 891-1394, Japan
| | - Shunji Nakatsuji
- SNBL USA, Ltd., 6605 Merrill Creek Parkway, Everett, WA 98203, USA
| | - Masahiro Matsumoto
- Drug Safety Research Labs, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba-shi, Ibaraki, 305-8585, Japan
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15
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Trott G, Pereira-Lima JFS, Leães CGS, Ferreira NP, Barbosa-Coutinho LM, Oliveira MC. Abundant immunohistochemical expression of dopamine D2 receptor and p53 protein in meningiomas: follow-up, relation to gender, age, tumor grade, and recurrence. ACTA ACUST UNITED AC 2015; 48:415-9. [PMID: 25742638 PMCID: PMC4445664 DOI: 10.1590/1414-431x20144163] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 11/26/2014] [Indexed: 11/22/2022]
Abstract
Meningiomas are common, usually benign tumors, with a high postoperative recurrence
rate. However, the genesis and development of these tumors remain controversial. We
aimed to investigate the presence and implications of a mutated p53 protein and
dopamine D2 receptor in a representative series of meningiomas and to
correlate these findings with age, gender, tumor grade, and recurrence. Tumor tissue
samples of 157 patients diagnosed with meningioma (37 males and 120 females, mean age
53.6±14.3 years) who underwent surgical resection between 2003 and 2012 at our
institution were immunohistochemically evaluated for the presence of p53 protein and
dopamine D2 receptor and were followed-up to analyze tumor recurrence or
regrowth. Tumors were classified as grades I (n=141, 89.8%), II (n=13, 8.3%), or
grade III (n=3, 1.9%). Dopamine D2 receptor and p53 protein expression
were positive in 93.6% and 49.7% of the cases, respectively. Neither of the markers
showed significant expression differences among different tumor grades or recurrence
or regrowth statuses. Our findings highlight the potential role of p53 protein in
meningioma development and/or progression. The high positivity of dopamine
D2 receptor observed in this study warrants further investigation of
the therapeutic potential of dopamine agonists in the evolution of meningiomas.
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Affiliation(s)
- G Trott
- Programa de Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil
| | - J F S Pereira-Lima
- Programa de Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil
| | - C G S Leães
- Programa de Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil
| | - N P Ferreira
- Centro de Neuroendocrinologia, Complexo Hospitalar Santa Casa de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil
| | - L M Barbosa-Coutinho
- Programa de Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil
| | - M C Oliveira
- Programa de Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil
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16
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Seliger B, Kiessling R. The two sides of HER2/neu: immune escape versus surveillance. Trends Mol Med 2013; 19:677-84. [PMID: 24035606 DOI: 10.1016/j.molmed.2013.08.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 08/14/2013] [Accepted: 08/15/2013] [Indexed: 11/28/2022]
Abstract
The oncogene HER2 is one of the prototypes for targeted immunotherapy of cancer using both monoclonal antibodies as well as T cell based immunotherapies. Effective humoral and cellular immune responses against HER2 can be induced, but these responses can be influenced by the effects of this oncogene on the target tumor cells. The processes involved in HER2-mediated adaptive and innate immunity and the molecular mechanisms underlying the escape of HER2-expressing tumor cells from immune surveillance, particularly from cytotoxic T cells, are discussed. Implementing this knowledge in clinical trials to revert immune evasion may help optimize immunotherapies directed against HER2-expressing tumors.
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Affiliation(s)
- Barbara Seliger
- University Halle-Wittenberg, Institute of Medical Immunology, Magdeburger Str. 2, 06112 Halle (Saale), Germany.
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17
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Miyahara H, Natsumeda M, Yoshimura J, Ogura R, Okazaki K, Toyoshima Y, Fujii Y, Takahashi H, Kakita A. Neuronal differentiation associated with Gli3 expression predicts favorable outcome for patients with medulloblastoma. Neuropathology 2013; 34:1-10. [PMID: 23889567 DOI: 10.1111/neup.12052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 06/11/2013] [Accepted: 06/12/2013] [Indexed: 12/18/2022]
Abstract
Medulloblastoma (MB) is a malignant cerebellar tumor arising in children, and its ontogenesis is regulated by Sonic Hedgehog (Shh) signaling. No data are available regarding the correlation between expression of Gli3, a protein lying downstream of Shh, and neuronal differentiation of MB cells, or the prognostic significance of these features. We re-evaluated the histopathological features of surgical specimens of MB taken from 32 patients, and defined 15 of them as MB with neuronal differentiation (ND), three as MB with both glial and neuronal differentiation (GD), and 14 as differentiation-free (DF) MB. Gli3-immunoreactivity (IR) was evident as a clear circular stain outlining the nuclei of the tumor cells. The difference in the frequency of IR between the ND+GD (94.4%) and DF (0%) groups was significant (P < 0.001). The tumor cells with ND showed IR for both Gli3 and neuronal nuclei. Ultrastructurally, Gli3-IR was observed at the nuclear membrane. The overall survival and event-free survival rates of the patients in the ND group were significantly higher than those in the other groups. The expression profile of Gli3 is of considerable significance, and the association of ND with this feature may be prognostically favorable in patients with MB.
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Affiliation(s)
- Hiroaki Miyahara
- Department of Pathology, Brain Research Institute, University of Niigata; Department of Pediatrics and Child Neurology, Oita University Faculty of Medicine, Oita, Japan
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18
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Waage IS, Vreim I, Torp SH. C-erbB2/HER2 in human gliomas, medulloblastomas, and meningiomas: a minireview. Int J Surg Pathol 2013; 21:573-82. [PMID: 23842006 DOI: 10.1177/1066896913492196] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
C-erbB2/HER2 serves as an important prognostic and predictive biomarker in various human tumors, especially in breast cancer, whereas its role in human intracranial tumors is more uncertain. We therefore performed a search in PubMed to get an update. This literature review comprises immunohistochemical studies on the clinical significance of c-erbB2/HER2 overexpression in gliomas, medulloblastomas, and meningiomas. In general, the findings were discrepant with regard to correlations between overexpression, tumor grade, and prognosis. Use of various antibodies may be a contributing factor to these discrepancies. Standardization of the immunohistochemical procedures is a relevant topic for discussion.
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19
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Moschovi M, Koultouki E, Stefanaki K, Sfakianos G, Tourkantoni N, Prodromou N, Alexiou GA. Prognostic significance of angiogenesis in relation to Ki-67, p-53, p-27, and bcl-2 expression in embryonal tumors. Pediatr Neurosurg 2011; 47:241-7. [PMID: 22309998 DOI: 10.1159/000335398] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 11/24/2011] [Indexed: 02/02/2023]
Abstract
AIM We investigated the angiogenesis and density of newly formed blood vessels in embryonal tumors in relation to Ki-67, bcl-2, p-53 and p-27 expression. METHODS Forty-five children with embryonal tumors were enrolled in the study. Forty patients had a medulloblastoma (MB) and 5 patients had atypical teratoid/rhabdoid tumor (AT/RT). RESULTS In MB, the 5-year PFS and OS was 62.5 and 70%, respectively. Patients with Ki-67 index >50%, bcl-2 index >30% and higher density of new vessels were associated with worse survival. In the multivariate analysis, Ki-67 index was identified as a factor with independent prognostic power. In AT/RTs, high density of new vessels (>25 HRF) was observed in 3 patients and Ki-67 index over 25% was found in 4 patients. CONCLUSION Increased Ki-67, bcl-2 and density of new vessels are of prognostic value for the disease outcome in MB.
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Affiliation(s)
- Maria Moschovi
- Hematology-Oncology Unit, First Department of Pediatrics, University of Athens, Athens, Greece
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20
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Moschovi M, Alexiou GA, Patereli A, Stefanaki K, Doussis-Anagnostopoulou I, Stofas A, Sfakianos G, Prodromou N. Prognostic significance of cyclin A and B1 in pediatric embryonal tumors. J Neurooncol 2010; 103:699-704. [PMID: 21069428 DOI: 10.1007/s11060-010-0451-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Accepted: 10/24/2010] [Indexed: 01/15/2023]
Abstract
Embryonal tumors constitute the most common malignant brain tumor group in children. Although patient prognosis has been substantially improved over recent decades, identification of prognostic markers would be of obvious significance. In the present study we evaluated the prognostic significance of cyclin A and B1 in correlation with Ki-67 index in pediatric embryonal tumors. We retrospectively evaluated 53 children with embryonic tumors who were treated surgically in our institute. All patients had regular follow-up examinations. The streptavidin-biotin-horseradish peroxidase (HRP) method was performed on paraffin sections for detection of Ki-67/MIB-1, and cyclin A and B1. There were 42 cases of medulloblastoma (MB), 9 cases of atypical teratoid/rhabdoid tumor (AT/RT), and 2 cases of supratentorial primitive neuroectodermal tumor (PNET). In MB patients, Ki-67 index >50% was associated with worse survival (P = 0.003). Cyclin A index >40% was associated with significantly poorer survival (P = 0.023). Patients with cyclin B1 index >15% exhibited a trend towards poorer survival (P = 0.068). On multivariate analysis, only Ki-67 index was identified as a factor with independent prognostic power. In AT/RT and PNET, there was high expression of Ki-67 and variable expression of cyclin A and B1. Apart from Ki-67 index, cyclin A may have a prognostic role. Study of the above indices at diagnosis could alter or intensify treatment methods, so as to improve disease outcome. There is obviously a need for future studies with larger number of patients to confirm our preliminary observations.
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Affiliation(s)
- Maria Moschovi
- Hematology Oncology Unit of 1st Department of Pediatrics, University of Athens, Athens, Greece
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Srikantha U, Balasubramaniam A, Santosh V, Somanna S, Bhagavatula ID, Ashwathnarayana CB. Recurrence in medulloblastoma – Influence of clinical, histological and immunohistochemical factors. Br J Neurosurg 2010; 24:280-8. [DOI: 10.3109/02688691003660558] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Kido M, Ueno M, Onodera M, Matsumoto K, Imai T, Haba R, Tamiya T, Huang CL, Sakamoto H. Medulloblastoma with myogenic differentiation showing double immunopositivity for synaptophysin and myoglobin. Pathol Int 2009; 59:255-60. [PMID: 19351370 DOI: 10.1111/j.1440-1827.2009.02360.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reported herein is a case of medulloblastoma with myogenic differentiation in a 3-year-old girl who died 1 year after appearance of clinical signs. Magnetic resonance imaging indicated a mass lesion in the cerebellar vermis. She underwent total resection of the tumor, followed by chemotherapy and radiotherapy in the brain and spinal cord. The resected specimen mainly consisted of densely packed cells with round-to-oval highly chromatic nuclei surrounded by scanty cytoplasm and focally of long spindle-shaped cells with elongated nuclei and eosinophilic cytoplasm showing discernible cross-striations. Immunohistochemistry indicated partial expression of synaptophysin in the former area and focal expression of desmin in the latter area. The diagnosis was medulloblastoma with myogenic differentiation, also known as medullomyoblastoma. Autopsy indicated disseminated proliferation of immature neuroglial cells with highly chromatic nuclei and scanty cytoplasm showing partial expression of synaptophysin, neurofilaments, and GFAP, and focal proliferation of round-to-oval immature cells showing immunoreactivity of myoglobin. The tumor cells had large nuclei, frequent mitoses, apoptoses, nuclear molding, and cell wrapping, indicating moderate anaplasia. Their Ki-67 labeling index was 54%. In addition, some tumor cells had double immunopositivity for synaptophysin or neurofilament and myoglobin, suggesting that the neuroectodermal cells may undergo differentiation into rhabdomyoblasts.
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Affiliation(s)
- Mizue Kido
- Department of Pathology, Faculty of Medicine, Kagawa University, Kagawa, Japan
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