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Mobarki M, Papoudou-Bai A, Musawi S, Péoc'h M, Karpathiou G. The detailed histopathological characteristics of ovarian fibroma compared with thecoma, granulosa cell tumor, and sclerosing stromal tumor. Pathol Res Pract 2024; 256:155236. [PMID: 38447489 DOI: 10.1016/j.prp.2024.155236] [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: 10/16/2023] [Revised: 02/26/2024] [Accepted: 03/02/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Ovarian fibromas are benign tumors that can present peculiar morphological features not studied sufficiently. MATERIAL AND METHODS In this retrospective study, 75 consecutive cases of ovarian fibroma were morphologically compared with 46 thecomas, 16 granulosa cell tumors, and 5 sclerosing stroma tumors for the following factors: the growth pattern as diffuse or nodular, the presence of hyaline plaques, necrosis, keloid-like sclerosis, calcifications, cystic degeneration, fibrous or edematous stroma, prominent vascularity, lutein cells, cellularity, scant or abundant cytoplasm, prominent cell membranes, nuclear grooves, atypia, and mitotic activity. RESULTS The tumors differed significantly in terms of hyaline plaques presence, nuclear grooves, growth pattern, stroma type, tumor cellularity, cytoplasm, prominence of cell membranes, atypia, mitotic activity, and prominent vascularity. CONCLUSION Ovarian fibromas can present some maybe unexpected features rather frequently, such as cystic degeneration, hyaline plaques, prominent vascularity, increased cellularity, and some mitotic activity, thus their presence should not always prompt to an alternative diagnosis.
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Affiliation(s)
- Mousa Mobarki
- Pathology Department, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | | | - Shaqraa Musawi
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Michel Péoc'h
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Georgia Karpathiou
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France.
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2
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Dimitrakopoulos FI, Goussia A, Koliou GA, Dadouli K, Batistatou A, Kourea HP, Bobos M, Arapantoni-Dadioti P, Tzaida O, Koletsa T, Chrisafi S, Sotiropoulou M, Papoudou-Bai A, Nicolaou I, Charchanti A, Mauri D, Aravantinos G, Binas I, Res E, Psyrri A, Pectasides D, Bafaloukos D, Koumarianou A, Bompolaki I, Rigakos G, Karanikiotis C, Koutras A, Zagouri F, Gogas H, Fountzilas G. Ten-year clinical outcome, toxicity and compliance of dose-dense sequential adjuvant administration of cyclophosphamide & epirubicin followed by docetaxel in patients with early breast cancer: A hellenic cooperative oncology group observational study (HE 10/10) with concurrent investigation of significance of tumor infiltrating lymphocytes. Breast 2024; 73:103668. [PMID: 38176305 PMCID: PMC10791571 DOI: 10.1016/j.breast.2023.103668] [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: 10/26/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Dose-dense sequential (dds) chemotherapy has changed the clinical outcome of patients with early breast cancer (BC). To investigate the impact of dose intensity (DI) in the adjuvant setting of BC, this observational trial (HE 10/10) was conducted assessing the long-term survival outcome, safety and toxicity of a currently widely used chemotherapeutic regimen. In addition, the prognostic significance of tumor infiltrating lymphocytes (TILs) and infiltrating CD8+ lymphocytes were also evaluated in the same cohort. PATIENTS AND METHODS Totally, 1054 patients were prospectively enrolled in the current study with 1024 patients being eligible, while adequate tissue was available for 596 of them. TILs, CD8+ lymphocytes in intratumoral areas in contact with malignant cells (iCD8), CD8+ lymphocytes in tumor stroma (sCD8) as well as the total number of CD8+ lymphocytes within the tumor area (total CD8) were assessed by immunohistochemistry. RESULTS Within a median follow-up of 125.18 months, a total of 200 disease-free survival (DFS) events (19.5%) were reported. Importantly, the 10-year DFS and OS rates were 78.4% (95% CI 75.0-81.5) and 81.7% (95% CI 79.0-84.1), respectively. Interestingly, higher CD8+ T cells as well as TILs in the tumor microenvironment were associated with an improved long-term survival outcome. CONCLUSIONS In conclusion, this study confirms the significance of dds adjuvant chemotherapeutic regimen in terms of long-term survival outcome, safety and toxicity as well as the prognostic significance of TILs and infiltrating CD8+ lymphocytes in BC patients with early-stage disease.
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Affiliation(s)
- Foteinos-Ioannis Dimitrakopoulos
- Division of Oncology, University Hospital of Patras "Panagia the Help", University of Patras, Patras, Greece; Molecular Oncology Laboratory, Department of Medicine, University of Patras, Patras, Greece.
| | - Anna Goussia
- Department of Pathology, Ioannina University Hospital, Ioannina, Greece; Department of Pathology, German Oncology Center, Limassol, Cyprus
| | | | - Katerina Dadouli
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Anna Batistatou
- Department of Pathology, Ioannina University Hospital, Ioannina, Greece
| | - Helen P Kourea
- Department of Pathology, University Hospital of Patras, Rion, Greece
| | - Mattheos Bobos
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece; Department of Biomedical Sciences, School of Health Sciences, International Hellenic University, Thessaloniki, Greece
| | | | - Olympia Tzaida
- Department of Pathology, Metaxas Cancer Hospital, Piraeus, Greece
| | - Triantafyllia Koletsa
- Department of Pathology, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, Thessaloniki, Greece
| | - Sofia Chrisafi
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Irene Nicolaou
- Department of Histopathology, Agii Anargiri Hospital, Athens, Greece
| | - Antonia Charchanti
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Davide Mauri
- Department of Medical Oncology, Medical School, University of Ioannina, Ioannina, Greece
| | - Gerasimos Aravantinos
- Second Department of Medical Oncology, Agii Anargiri Cancer Hospital, Athens, Greece
| | - Ioannis Binas
- Second Department of Medical Oncology, Metropolitan Hospital, Piraeus, Greece
| | - Eleni Res
- Third Department of Medical Oncology, Agii Anargiri Cancer Hospital, Athens, Greece
| | - Amanda Psyrri
- Section of Medical Oncology, Department of Internal Medicine, Attikon University Hospital, Faculty of Medicine, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Dimitrios Pectasides
- Oncology Section, Second Department of Internal Medicine, Hippokratio Hospital, Athens, Greece
| | | | - Anna Koumarianou
- Hematology-Oncology Unit, Fourth Department of Internal Medicine, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Greece
| | | | - Georgios Rigakos
- Third Department of Medical Oncology, Hygeia Hospital, Athens, Greece
| | | | - Angelos Koutras
- Division of Oncology, University Hospital of Patras "Panagia the Help", University of Patras, Patras, Greece
| | - Flora Zagouri
- Department of Clinical Therapeutics, Alexandra Hospital, National Andistrian U Kapodniversity of Athens School of Medicine, Athens, Greece
| | - Helen Gogas
- First Department of Medicine, Laiko General Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - George Fountzilas
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece; Aristotle University of Thessaloniki, Thessaloniki, Greece; Department of Medical Oncology, German Oncology Center, Limassol, Cyprus
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3
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Dimas A, Goussia A, Papoudou-Bai A, Politi A, Paschopoulos M, Navrozoglou I, Makrigiannakis A, Vrekoussis T. The expression of corticotropin-releasing hormone family peptides in premalignant and malignant vulvar lesions. Clin Transl Oncol 2024; 26:260-268. [PMID: 37382757 PMCID: PMC10761541 DOI: 10.1007/s12094-023-03249-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 02/23/2023] [Accepted: 06/07/2023] [Indexed: 06/30/2023]
Abstract
OBJECTIVES To examine the relation of corticotropin-releasing hormone (CRH) family peptides with inflammatory processes and oncogenesis, emphasizing in vulvar inflammatory, premalignant and malignant lesions, as well as to investigate the possibility of lesion cells immunoescaping, utilizing FAS/FAS-L complex. METHODS Immunohistochemical expression of CRH, urocortin (UCN), FasL and their receptors CRHR1, CRHR2 and Fas was studied in vulvar tissue sections obtained from patients with histologically confirmed diagnosis of lichen, vulvar intraepithelial neoplasia (VIN) and vulvar squamous cell carcinoma (VSCC). The patient cohort was selected from a tertiary teaching Hospital in Greece, between 2005 and 2015. For each of the disease categories, immunohistochemical staining was evaluated and the results were statistically compared. RESULTS A progressive increase of the cytoplasmic immunohistochemical expression of CRH and UCN, from precancerous lesions to VSCC was observed. A similar increase was detected for Fas and FasL expression. Nuclear localization of UCN was demonstrated in both premalignant and VSCC lesions, with staining being significantly intensified in carcinomas, particularly in the less differentiated tumor areas or in the areas at invasive tumor front. CONCLUSIONS Stress response system and CRH family peptides seem to have a role in inflammation maintenance and progression of vulvar premalignant lesions to malignancy. It seems that stress peptides may locally modulate the stroma through Fas/FasL upregulation, possibly contributing to vulvar cancer development.
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Affiliation(s)
| | - Anna Goussia
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
- Department of Pathology, University Hospital of Ioannina, 45110, Ioannina, Greece
- Department of Pathology, German Oncology Center, Limassol, Cyprus
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
- Department of Pathology, University Hospital of Ioannina, 45110, Ioannina, Greece
| | - Anastasia Politi
- Department of Dermatology, Venereology, Andreas Syggros Hospital, National and Kapodistrian University of Athens, 16121, Athens, Greece
| | - Minas Paschopoulos
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Iordanis Navrozoglou
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Antonis Makrigiannakis
- Department of Obstetrics and Gynecology, School of Health Science, University of Crete, 71500, Iraklio, Greece
| | - Thomas Vrekoussis
- Department of Obstetrics and Gynecology, School of Health Science, University of Crete, 71500, Iraklio, Greece
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Georgoulis V, Papoudou-Bai A, Makis A, Kanavaros P, Hatzimichael E. Unraveling the Immune Microenvironment in Classic Hodgkin Lymphoma: Prognostic and Therapeutic Implications. Biology (Basel) 2023; 12:862. [PMID: 37372147 DOI: 10.3390/biology12060862] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/06/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
Classic Hodgkin lymphoma (cHL) is a lymphoid neoplasm composed of rare neoplastic Hodgkin and Reed-Sternberg (HRS) cells surrounded by a reactive tumor microenvironment (TME) with suppressive properties against anti-tumor immunity. TME is mainly composed of T cells (CD4 helper, CD8 cytotoxic and regulatory) and tumor-associated macrophages (TAMs), but the impact of these cells on the natural course of the disease is not absolutely understood. TME contributes to the immune evasion of neoplastic HRS cells through the production of various cytokines and/or the aberrant expression of immune checkpoint molecules in ways that have not been fully understood yet. Herein, we present a comprehensive review of findings regarding the cellular components and the molecular features of the immune TME in cHL, its correlation with treatment response and prognosis, as well as the potential targeting of the TME with novel therapies. Among all cells, macrophages appear to be a most appealing target for immunomodulatory therapies, based on their functional plasticity and antitumor potency.
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Affiliation(s)
- Vasileios Georgoulis
- Department of Hematology, School of Health Sciences, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, School of Health Sciences, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece
| | - Alexandros Makis
- Department of Child Health, School of Health Sciences, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, School of Health Sciences, Faculty of Medicine, University of Ioannina, 45 000 Ioannina, Greece
| | - Eleftheria Hatzimichael
- Department of Hematology, School of Health Sciences, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece
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Karpathiou G, Dridi M, Papoudou-Bai A, Perard M, Clemenson A, Chauleur C, Peoc'h M. The Presence of the Autophagic Markers LC3B and Sequestosome 1/p62 in the Hydatidiform Mole. Int J Gynecol Pathol 2023; 42:301-307. [PMID: 35512216 DOI: 10.1097/pgp.0000000000000886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Autophagy is implicated in normal pregnancy and various pathologic pregnancy conditions. Its presence in hydatidiform moles (HM) is unknown. We immunohistochemically studied 36 HM for LC3B and p62 to precisely determine their expression in the decidua, endometrium, and villi. Nineteen nonmolar pregnancies were also studied. LC3B was found in almost half of the villi and p62 was found in almost all villi. LC3B expression was significantly higher in complete HM than in partial HM. LC3B showed different expression patterns in trophoblast layers. LC3B and p62 expression was higher in molar than nonmolar pregnancies. Autophagic markers are present in HM and their expression differs between complete and partial moles.
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Mavridou K, Goussia AC, Spyridonos P, Papoudou-Bai A, Schulze HJ, Gaitanis G, Bassukas ID. Evidence for differing roles of CD11c + CD163 + and CD11c - CD163 + cells in intracellular pigment storing in tattoos and stasis dermatitis. J Eur Acad Dermatol Venereol 2023. [PMID: 36912804 DOI: 10.1111/jdv.19025] [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] [Received: 01/11/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Affiliation(s)
| | - Anna C Goussia
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Panagiota Spyridonos
- Department of Medical Physics, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | | | - Georgios Gaitanis
- Department of Dermatology, University Hospital of Ioannina, Ioannina, Greece
- Department of Skin and Venereal Diseases, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Ioannis D Bassukas
- Department of Skin and Venereal Diseases, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
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Mobarki M, Papoudou-Bai A, Dumollard JM, Alhazmi AH, Musawi S, Madkhali MA, Muqri KY, Péoc’h M, Karpathiou G. Crystal-Storing Histiocytosis: The Iceberg of More Serious Conditions. Diagnostics (Basel) 2023; 13:diagnostics13020271. [PMID: 36673081 PMCID: PMC9858286 DOI: 10.3390/diagnostics13020271] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/04/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
Crystal-storing histiocytosis is a rare condition that is histologically characterized by intracellular cytoplasmic crystalline inclusions. It usually presents monoclonal immunoglobulins that deposit within histiocytes, which accumulate and affect different organs of the human body and are commonly associated with lymphoproliferative conditions, especially those with plasmacytic differentiation. The prognosis of this condition is variable and related to the underlying clinical disease. In this review article, we aim to describe and discuss the clinical and pathological characteristics of crystal-storing histiocytosis based on the available literature and to provide a thorough differential diagnosis.
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Affiliation(s)
- Mousa Mobarki
- Pathology Department, Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia
- Correspondence: ; Tel.: +966-540926111
| | - Alexandra Papoudou-Bai
- Pathology Department, Faculty of Medicine, University of Ioannina, 47100 Ioannina, Greece
| | - Jean Marc Dumollard
- Pathology Department, University Hospital of Saint-Etienne, 42023 Saint-Etienne, France
| | - Abdulaziz H. Alhazmi
- Microbiology and Parasitology Department, Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia
| | - Shaqraa Musawi
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Jazan University, Jazan 45142, Saudi Arabia
| | - Mohammed Ali Madkhali
- Division of Hematology and Oncology, Department of Internal Medicine, Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia
| | - Khalid Y. Muqri
- Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia
| | - Michel Péoc’h
- Pathology Department, University Hospital of Saint-Etienne, 42023 Saint-Etienne, France
| | - Georgia Karpathiou
- Pathology Department, University Hospital of Saint-Etienne, 42023 Saint-Etienne, France
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Mantelou AG, Barbouti A, Goussia A, Zacharioudaki A, Papoudou-Bai A, Vlachou C, Kokkoris S, Papalois A, Galaris D, Glantzounis GK. Combined administration of membrane-permeable and impermeable iron-chelating drugs attenuates ischemia/reperfusion-induced hepatic injury. Free Radic Biol Med 2022; 193:227-237. [PMID: 36243210 DOI: 10.1016/j.freeradbiomed.2022.10.266] [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: 06/22/2022] [Revised: 10/07/2022] [Accepted: 10/07/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND The underlying pathophysiological mechanisms of hepatic ischemia-reperfusion (I/R) injury have not been completely elucidated. However, it is well known that oxidative stress, caused by a burst of reactive oxygen species (ROS) production during the reperfusion phase, plays a crucial role. A growing body of evidence indicates that the intracellular availability of free iron represents a requirement for ROS-induced adverse effects, as iron catalyzes the generation of highly reactive free radicals. The aim of this study was to examine whether a combination of iron chelators with varying lipophilicity could offer enhanced protection against I/R by diminishing the conversion of weak oxidants, like H2O2, to extremely reactive ones such as hydroxyl radicals (HO.). METHODS HepG2 cells (hepatocellular carcinoma cell line) were exposed to oxidative stress conditions after pre-treatment with the iron chelators desferrioxamine (DFO) and deferiprone (DFP) alone or in combination. Labile iron pool was estimated using the calcein-acetoxymethyl ester (calcein-AM) method and DNA damage with the comet assay. We subsequently used a rabbit model (male New Zealand white rabbits) of hepatic I/R-induced injury to investigate, by measuring biochemical (ALT, ALT, ALP, γGT) and histological parameters, whether this may be true for in vivo conditions. RESULTS The combination of a membrane-permeable iron chelator (DFP) with a strong membrane-impermeable one (DFO) raises the level of protection in both hepatic cell lines exposed to oxidative stress conditions and hepatic I/R rabbit model. CONCLUSIONS Our results show that combinations of iron chelators with selected lipophilicity and iron-binding properties may represent a valuable strategy to protect against tissue damage during reperfusion after a period of ischemia.
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Affiliation(s)
- Athina G Mantelou
- HPB Unit, Department of Surgery, University Hospital of Ioannina and Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece
| | - Alexandra Barbouti
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece
| | - Anna Goussia
- Department of Pathology, University Hospital of Ioannina and Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece
| | | | - Alexandra Papoudou-Bai
- Department of Pathology, University Hospital of Ioannina and Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece
| | - Chara Vlachou
- Laboratory of Biological Chemistry, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece
| | - Stelios Kokkoris
- First Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, Athens, 10676, Greece
| | - Apostolos Papalois
- Experimental, Educational and Research Center ELPEN, Athens, 19009, Greece; European University of Cyprus, School of Medicine, Nicosia, 2404, Cyprus
| | - Dimitrios Galaris
- Laboratory of Biological Chemistry, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece
| | - Georgios K Glantzounis
- HPB Unit, Department of Surgery, University Hospital of Ioannina and Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, 45110, Greece.
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Karpathiou G, Mobarki M, Papoudou-Bai A, Grosjean V, Chauleur C, Péoc’h M. Autophagic factors in Paget disease. Pathol Res Pract 2022; 236:154001. [DOI: 10.1016/j.prp.2022.154001] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/23/2022] [Accepted: 06/29/2022] [Indexed: 11/26/2022]
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10
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Mantelou AG, Zacharioudaki A, Pappas-Gogos G, Papalois A, Papoudou-Bai A, Goussia A, Glantzounis GK. Description of a Recovery Model in Rabbits for the Study of the Late Phase of Liver Ischemia-Reperfusion Injury. In Vivo 2022; 36:153-160. [PMID: 34972710 DOI: 10.21873/invivo.12686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 08/23/2021] [Revised: 09/23/2021] [Accepted: 09/29/2021] [Indexed: 11/10/2022]
Abstract
AIM Description of an anesthetic recovery model with endotracheal intubation in rabbits which provides metabolic stability for the study of the late phase of liver ischemia/reperfusion (I/R) injury. MATERIALS AND METHODS Two groups of New Zealand rabbits, n=7 in each, were used: Ischemia/reperfusion (I/R) group (45 min of partial liver ischemia/reperfusion) and no intervention (sham) group. Blood alanine aminotransferase, lactate, pH values, mean arterial pressure and pCO2 were calculated at baseline, and at 2 and 24 h post reperfusion. Tissue samples from left (ischemic) and right (non-ischemic) liver lobes were examined at 2 and 24 h after reperfusion. RESULTS The I/R group presented significantly higher levels of alanine aminotransferase (p=0.001) at 2 and 24 h, and of lactate (p=0.016) at 2 h post reperfusion. No differences were documented for pH, mean arterial pressure and pCO2 Histological exanimation revealed significant injury at 24 h post reperfusion for the I/R group. CONCLUSION This anesthetic recovery model permitted avoidance of hypoxia and respiratory acidosis, allowing the study of the late phase of I/R injury.
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Affiliation(s)
- Athina G Mantelou
- Department of Surgery, University Hospital of Ioannina and School of Medicine, University of Ioannina, Ioannina, Greece
| | | | - George Pappas-Gogos
- Department of Surgery, University Hospital of Ioannina and School of Medicine, University of Ioannina, Ioannina, Greece
| | - Apostolos Papalois
- Experimental, Educational and Research Center ELPEN, Athens, Greece.,European University Cyprus, School of Medicine, Nicosia, Cyprus
| | - Alexandra Papoudou-Bai
- Department of Pathology, Ioannina University Hospital and School of Medicine, University of Ioannina, Ioannina, Greece
| | - Anna Goussia
- Department of Pathology, Ioannina University Hospital and School of Medicine, University of Ioannina, Ioannina, Greece
| | - Georgios K Glantzounis
- Department of Surgery, University Hospital of Ioannina and School of Medicine, University of Ioannina, Ioannina, Greece;
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11
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Asimakopoulos AD, Panosetti E, Papoudou-Bai A, Sioka C. Evaluation of Cheek Edema in an Infant Reveals Langerhans Cell Histiocytosis. Ethiop J Health Sci 2022; 32:217-220. [PMID: 35250234 PMCID: PMC8864389 DOI: 10.4314/ejhs.v32i1.24] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/12/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Langerhans cell histiocytosis is a rare hematological disorder. Skin rash is the typical early feature, and bony involvement is the second most common presentation. METHODS We present a case of a 5-month-old female infant with left hemifacial swelling, initially treated for infection with antibiotics. However, due to persistence of swelling and new onset fever, further evaluation with ultrasonography, CT scan, FDG PET/CT and eventually biopsy was performed. RESULTS Imaging methods revealed mandibular osteolysis indicative of either osteomyelitis or histiocytosis X. Tissue biopsy was diagnostic for Langerhans cell histiocytosis. CONCLUSION Langerhans cell histiocytosis may present in infancy with a variety of symptoms, included an isolated bony lesion. Langerhans cell histiocytosis, despite its rarity, should be included in the differentiated diagnosis, when bone osteolysis is found.
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Affiliation(s)
- Asimakis D Asimakopoulos
- Department of Oto-Rhino-Laryngology & Head and Neck Surgery, Hospital Centre of Luxembourg, Luxembourg
| | - Eugene Panosetti
- Department of Oto-Rhino-Laryngology & Head and Neck Surgery, Hospital Centre of Luxembourg, Luxembourg
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Chrissa Sioka
- Department of Nuclear Medicine, University of Ioannina, Ioannina, Greece
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Dridi M, Papoudou-Bai A, Kanavaros P, Perard M, Clemenson A, Chauleur C, Peoc’h M, Karpathiou G. The immune microenvironment of the hydatidiform mole. Hum Pathol 2021; 120:35-45. [DOI: 10.1016/j.humpath.2021.12.002] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/10/2021] [Accepted: 12/12/2021] [Indexed: 11/04/2022]
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13
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Karpathiou G, Ferrand E, Papoudou-Bai A, Camy F, Honeyman F, Dumollard JM, Peoc'h M. STAT6 and phosphorylated STAT6 are differentially expressed in lymphomas. Pathol Res Pract 2021; 229:153697. [PMID: 34839096 DOI: 10.1016/j.prp.2021.153697] [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: 08/30/2021] [Revised: 11/05/2021] [Accepted: 11/16/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The STAT6 pathway is implicated in the pathogenesis of various lymphomas; however, its immunohistochemical expression has not been fully investigated. Thus, the aim of this study was to investigate the immunohistochemical expression of the two forms of STAT6, phosphorylated or not, in a series of systemic lymphomas. MATERIALS AND METHODS Immunohistochemical expression of two antibodies, STAT6 (clone YE361) and pSTAT6 (clone Y641), which recognise the phosphorylated form of the molecule was studied in 60 lymphomas. RESULTS STAT6YE361 expression was cytoplasmic, with 23.3% of the cases showing high expression. pSTAT6Y641 expression was mostly nuclear and found in 45% of the cases. pSTAT6Y641 nuclear expression was associated with the lymphoma type (p < 0.0001), as it was seen mostly in follicular, Hodgkin and angioimmunoblastic T cell lymphomas. STAT6YE361 cytoplasmic expression was also associated with lymphoma type (p = 0.001), as it was mostly found in diffuse large B cell and marginal B cell lymphomas. No association with PD-L1 expression, other clinicopathological data or prognosis was found. CONCLUSION The two STAT6 clones are differentially expressed between lymphoma types.
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Affiliation(s)
| | - Elise Ferrand
- Pathology Department, University Hospital of Saint-Etienne, France
| | | | - Florian Camy
- Pathology Department, University Hospital of Saint-Etienne, France
| | - Fressia Honeyman
- Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France
| | | | - Michel Peoc'h
- Pathology Department, University Hospital of Saint-Etienne, France
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14
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Karpathiou G, Hamlat M, Dridi M, Forest F, Papoudou-Bai A, Dumollard JM, Peoc'h M. Autophagy and immune microenvironment in craniopharyngioma and ameloblastoma. Exp Mol Pathol 2021; 123:104712. [PMID: 34655574 DOI: 10.1016/j.yexmp.2021.104712] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/08/2021] [Accepted: 10/10/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Craniopharyngiomas and ameloblastomas show remarkable histologic and molecular similarities. The immune microenvironment of craniopharyngiomas has been recently studied showing interesting findings, while its composition in ameloblastomas is unknown. Similarly, some evidence of autophagic activity, a process of cellular constituents' degradation has been found in ameloblastomas, but no studies exist in craniopharyngiomas. Thus, the aim of the study is to compare factors of the immune microenvironment and the autophagic apparatus between these two tumor types. METHODS 26 craniopharyngiomas and 14 ameloblastomas were immunohistochemically studied for PD-L1, CD8, CD20, S100, CD163, MECA-79, LC3B and p62. RESULTS Craniopharyngiomas showed higher LC3B tumor cell expression, higher CD8+ T cells and higher CD163+ macrophages in comparison to ameloblastomas. LC3B tumor cell expression was associated with overall survival in craniopharyngioma patients and p62 nuclear expression was associated with overall survival in ameloblastoma patients. CONCLUSION This is the first study showing the presence of autophagic markers in craniopharyngiomas and describing the immune microenvironment of ameloblastomas.
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Affiliation(s)
| | - Mehdi Hamlat
- Pathology Department, University Hospital of Saint-Etienne, France
| | - Maroa Dridi
- Pathology Department, University Hospital of Saint-Etienne, France
| | - Fabien Forest
- Pathology Department, University Hospital of Saint-Etienne, France
| | | | | | - Michel Peoc'h
- Pathology Department, University Hospital of Saint-Etienne, France
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15
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Karpathiou G, Ferrand E, Camy F, Babiuc SM, Papoudou-Bai A, Dumollard JM, Cornillon J, Peoc'h M. Expression of STAT6 and Phosphorylated STAT6 in Primary Central Nervous System Lymphomas. J Neuropathol Exp Neurol 2021; 80:830-834. [PMID: 34388250 DOI: 10.1093/jnen/nlab080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The signal transducer and activator of transcription 6 (STAT6) is implicated in the pathogenesis of some lymphomas including primary central nervous system lymphomas (PCNSLs). The aim of this study was to investigate STAT6 expression and clinicopathologic features in 25 PCNSLs using immunohistochemistry with 2 different anti-STAT6 antibodies. One (YE361) recognizes the C-terminus domain of the STAT6 protein and the other (Y641) recognizes the phosphorylated form of the protein. The phosphorylated STAT6 form was not expressed in any of the cases studied whereas the YE361 STAT6 showed only cytoplasmic expression in 14 (56%) cases. This expression did not correlate with age, prognostic score, multiplicity, invasion of deep structures, response to treatment, disease recurrence, overall survival, or BCL6, BCL2, PD-L1, and CD8 expression. A STAT6 expression score showed a trend for correlating with clinical performance status. It also showed a positive correlation with MYC expression. Thus, the phosphorylated form of STAT6 was not found in the current series, while the YE361 STAT6 showed only cytoplasmic expression and was associated with expression of MYC.
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Affiliation(s)
- Georgia Karpathiou
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Elise Ferrand
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Florian Camy
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Silvia-Maria Babiuc
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Alexandra Papoudou-Bai
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Jean Marc Dumollard
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Jerome Cornillon
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
| | - Michel Peoc'h
- From the Pathology Department, University Hospital of Saint-Etienne, France (GK, EF, FC, JMD, MP); Hematology and Cell Therapy Department, Lucien Neuwirth Cancer Institute, France (S-MB, JC); Pathology Department, University Hospital of Ioannina, Ioannina, Greece (AP-B)
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16
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Papakonstantinou I, Koumpis E, Fytsili E, Panteli A, Milionis H, Papoudou-Bai A, Kapsali E, Hatzimichael E. Leishmaniasis mimicking multiple myeloma. Int J Lab Hematol 2021; 44:44-46. [PMID: 34322992 DOI: 10.1111/ijlh.13667] [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] [Received: 04/30/2021] [Revised: 06/06/2021] [Accepted: 07/13/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Ioannis Papakonstantinou
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Epameinondas Koumpis
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eugenia Fytsili
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Aikaterini Panteli
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Haralampos Milionis
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleni Kapsali
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleftheria Hatzimichael
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
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17
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Koumpis E, Tassi I, Malea T, Papathanasiou K, Papakonstantinou I, Serpanou A, Tsolas E, Kapsali E, Vassilakopoulos TP, Papoudou-Bai A, Hatzimichael E. CD56 expression in multiple myeloma: Correlation with poor prognostic markers but no effect on outcome. Pathol Res Pract 2021; 225:153567. [PMID: 34352440 DOI: 10.1016/j.prp.2021.153567] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 04/18/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 11/17/2022]
Abstract
CD56 or neural cell adhesion molecule (NCAM) is a membrane glycoprotein expressed on neural cells, muscle tissues and myeloma cells. Expression of CD56 has been studied in patients with multiple myeloma (MM) with controversial results. The scope of this study was to examine the expression of CD56 in MM patients at diagnosis and investigate its association with clinicopathologic parameters. We retrospectively collected and analyzed data from 109 patients with MM diagnosed over the last decade (January 2010 to June 2020). Expression of CD56 was assessed by immunohistochemistry in bone marrow biopsies and investigated its association with a variety of clinicopathological parameters. For the statistical analysis χ2 test and Mann-Whitney U tests were used to compare categorical and continuous variables in CD56+ and CD56- patients, respectively. Statistical analysis was performed using SPSS 21.0 for Windows (SPSS, Chicago, IL). Based on the expression of CD56 the patient population was divided to CD56+ patients and CD56- patients; Sixty-eight patients were CD56 + and 41 patients were CD56-. Absence of CD56 expression was associated with unfavorable prognostic parameters such as elevated lactate dehydrogenase (LDH) and β2-microglobulin levels, advanced stage according to the International Staging System (ISS) and clonal bone marrow plasma cell infiltration ≥ 60%, but no effect on outcome, while the expression of CD56 was associated with well differentiated neoplastic plasma cells. Our study confirmed that lack of CD56 expression is a possible marker of poor prognosis in patients with MM. The detection of CD56 expression by either immunohistochemistry or flow cytometry is simple and cheap, and it could be incorporated in future prognostic or predictive scores. Prospective studies are needed in order to evaluate the role of expression of CD56 as a predictive biomarker in the era of novel regimens.
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Affiliation(s)
- Epameinondas Koumpis
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Iliana Tassi
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Theodora Malea
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Konstantina Papathanasiou
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Ioannis Papakonstantinou
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Anastasia Serpanou
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Evangelos Tsolas
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleni Kapsali
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Theodoros P Vassilakopoulos
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleftheria Hatzimichael
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
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18
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Papakonstantinou I, Kosmidou M, Papathanasiou K, Koumpis E, Kapsali E, Milionis H, Vassilakopoulos TP, Papoudou-Bai A, Hatzimichael E. Paraneoplastic Intrahepatic Cholestasis in Supradiaphragmatic Classical Hodgkin Lymphoma Successfully Treated With Brentuximab Vedotin: A Case Report and Review of the Literature. In Vivo 2021; 35:1951-1957. [PMID: 34182468 DOI: 10.21873/invivo.12462] [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: 03/14/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND Hepatic dysfunction in patients with classical Hodgkin lymphoma (cHL) is of multifactorial aetiology. Prompt evaluation with laboratory tests and imaging methods is sufficient for diagnosis in most cases. Intrahepatic cholestasis and vanishing bile duct syndrome (VBDS) may complicate cHL as rare paraneoplastic phenomena. Liver biopsy provides crucial evidence of cholestasis, and ductopenia, if present, confirms the diagnosis of VBDS. CASE REPORT We report on a cHL patient that presented with jaundice and bulky mediastinal disease and unfold the therapeutic dilemmas we confronted. Marked hyperbilirubinemia was successfully reversed with brentuximab vedotin (BV) at a dose of 1.2 mg/kg and the patient was subsequently treated with doxorubicin, bleomycin, vinblastine and dacarbazine (ABVD) at full doses, achieving complete metabolic response. A literature review of intrahepatic cholestasis in cHL is also presented based on currently available data with focus on treatment options and clinicopathologic associations. CONCLUSION VBDS and intrahepatic cholestasis are rare and potentially fatal complications of cHL. Their prompt recognition and appropriate treatment can dramatically affect cHL patients' outcome. BV, used at a reduced dose as a bridging therapy, should be considered as a high-priority treatment plan in these challenging cases.
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Affiliation(s)
- Ioannis Papakonstantinou
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Maria Kosmidou
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Konstantina Papathanasiou
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Epameinondas Koumpis
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleni Kapsali
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Haralampos Milionis
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Theodoros P Vassilakopoulos
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleftheria Hatzimichael
- Department of Haematology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece;
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19
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Kitsou C, Lazaros L, Papoudou-Bai A, Sakaloglou P, Mastora E, Lykovardakis T, Giaka K, Vartholomatos G, Bouba I, Markoula S, Batistatou A, Georgiou I. Reverse Transcriptase Affects Gametogenesis and Preimplantation Development in Mouse. In Vivo 2021; 34:2269-2276. [PMID: 32871749 DOI: 10.21873/invivo.12037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM The expression of reverse transcriptase (RT) in ovaries, testes, gametes and embryos highlights its critical role in cell growth and differentiation. We sought to investigate the effects of the potent RT inhibitor lamivudine in gametogenesis and mouse embryo preimplantation development. MATERIALS AND METHODS Male and female FVB/N mice were treated with the reverse transcriptase inhibitor Lamivudine for seven consecutive weeks. Following treatment, mouse sperm parameters, testicular and ovarian morphology as well as post-IVF embryo development were evaluated. RESULTS Lamivudine impaired the sperm parameters and the testicular structure in male mice, the number of primordial germ cells and primary oocytes in ovaries of female mice, and the embryos' morphology and development up to the blastocyst stage during in vitro culture. CONCLUSION The administration of lamivudine affected the processes of spermatogenesis and oogenesis as well as the in vitro preimplantation development of mouse embryos.
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Affiliation(s)
- Chrysoula Kitsou
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
| | - Leandros Lazaros
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece.,Genesis Genoma Lab, Genetic Diagnosis-Clinical Genetics-Research, Athens, Greece
| | | | - Prodromos Sakaloglou
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
| | - Eirini Mastora
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
| | - Theodoros Lykovardakis
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
| | - Katerina Giaka
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
| | - Georgios Vartholomatos
- Laboratory of Hematology, Molecular Biology Unit, Ioannina University Hospital, Ioannina, Greece
| | - Ioanna Bouba
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
| | - Sofia Markoula
- Department of Neurology, Ioannina University Hospital, Ioannina, Greece
| | - Anna Batistatou
- Department of Pathology, Ioannina University Hospital, Ioannina, Greece
| | - Ioannis Georgiou
- Laboratory of Medical Genetics of Human Reproduction, Medical School, Ioannina University, Ioannina, Greece
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20
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Karpathiou G, Casteillo F, Dridi M, Papoudou-Bai A, Dumollard JM, Peoc'h M. L1CAM expression in cystic mesothelial lesions: a comparison with adenomatoid tumours, well-differentiated papillary mesothelial tumours and malignant mesotheliomas. Histopathology 2021; 79:272-274. [PMID: 33847416 DOI: 10.1111/his.14387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/18/2021] [Accepted: 04/10/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Georgia Karpathiou
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Francois Casteillo
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Maroa Dridi
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | | | - Jean Marc Dumollard
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Michel Peoc'h
- Pathology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
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21
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Pelechas E, Papoudou-Bai A, Voulgari PV, Drosos AA. Cutaneous Autoimmune Phenomena of the Anti-TNFa Biosimilars. Casebased Review. Curr Rheumatol Rev 2021; 17:267-270. [PMID: 33213352 DOI: 10.2174/1573397116666201119151349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/22/2020] [Accepted: 10/06/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Psoriasis (Pso) is a common chronic inflammatory disease affecting the skin, both sexes, and all ages. It can be associated with other chronic inflammatory musculoskeletal disorders and certain drugs, including tumor necrosis factor α (TNFα) antagonists. CASE PRESENTATION A 64-year-old man with seronegative rheumatoid arthritis (RA) refractory to leflunomide and prednisone was treated with SB-4 (Benepali), an etanercept biosimilar 50mg/week subcutaneously. He responded well to the treatment, but a year later, he developed erythematous skin eruptions affecting mainly in the palms of both hands. Skin biopsy showed a picture compatible with Pso. SB-4 was discontinued, and the skin lesions disappeared with the addition of topical steroid therapy. This is the only case of psoriatic skin lesions associated with SB-4 treatment. CONCLUSION Thus, we review and discuss the relevant literature of Pso cases related to SB-4 and other anti-TNFα biosimilars. Rheumatologists dealing with patients on anti-TNFα biosimilars should be aware of and recognize these complications.
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Affiliation(s)
- Eleftherios Pelechas
- Department of Internal Medicine, Rheumatology Clinic, Medical School, University of Ioannina, Ioannina, Greece
| | | | - Paraskevi V Voulgari
- Department of Internal Medicine, Rheumatology Clinic, Medical School, University of Ioannina, Ioannina, Greece
| | - Alexandros A Drosos
- Department of Internal Medicine, Rheumatology Clinic, Medical School, University of Ioannina, Ioannina, Greece
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22
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Karpathiou G, Papoudou-Bai A, Zarkavelis G, Picot T, Peoc'h M. Molecular Analysis of an Abdominal Wall Cesarean Section Endometrioid Carcinoma. Int J Surg Pathol 2021; 30:68-71. [PMID: 33988473 DOI: 10.1177/10668969211018262] [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] [Indexed: 11/16/2022]
Abstract
Malignant transformation of endometriosis is rare, and most cases concern the ovaries, while extraovarian cases are mostly found in the rectovaginal septum. Incisional adenocarcinoma is extremely rare, with only few cases reported in the literature, while their molecular profile remains unknown. Thus, we report on an abdominal wall cesarean section scar endometrioid adenocarcinoma studied by next-generation sequencing and microsatellite instability analysis.
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Affiliation(s)
| | | | - George Zarkavelis
- University Hospital of Ioannina, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
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23
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Karpathiou G, Papoudou-Bai A, Ferrand E, Dumollard JM, Peoc'h M. STAT6: A review of a signaling pathway implicated in various diseases with a special emphasis in its usefulness in pathology. Pathol Res Pract 2021; 223:153477. [PMID: 33991851 DOI: 10.1016/j.prp.2021.153477] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 12/17/2022]
Abstract
Signal Transducer and Activator of Transcription 6 (STAT6), belonging to a family of seven similar members is primarily stimulated by interleukin(IL)-4 and IL-13, and acts as a T helper type 2 (Th2)-inducing factor. Thus, it is implicated in the pathophysiology of various allergic conditions, such as asthma, atopic dermatitis, eosinophilic esophagitis and food allergies, but also in tumor microenvironment regulation. Furthermore, certain forms of lymphomas, notably the Hodgkin lymphoma group, the primary mediastinal and primary central nervous system lymphoma, as well as some follicular and T cell lymphomas are associated with dysregulation of the STAT6 pathway. STAT6 immunohistochemical expression also serves as a surrogate marker in the diagnosis of solitary fibrous tumor, despite not directly responsible for the tumorigenic effect. These pathophysiological implications of the STAT6 pathway, its diagnostic or prognostic role in pathology, as well its immunohistochemical detection with different antibodies will be discussed in this review.
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Affiliation(s)
| | | | - Elise Ferrand
- Pathology Department, University Hospital of Saint-Etienne, France
| | | | - Michel Peoc'h
- Pathology Department, University Hospital of Saint-Etienne, France
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24
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Evangelou Z, Papoudou-Bai A, Karpathiou G, Kourea H, Kamina S, Goussia A, Harissis H, Peschos D, Batistatou A. PD-L1 Expression and Tumor-infiltrating Lymphocytes in Breast Cancer: Clinicopathological Analysis in Women Younger than 40 Years Old. In Vivo 2020; 34:639-647. [PMID: 32111764 DOI: 10.21873/invivo.11818] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 12/06/2019] [Revised: 12/17/2019] [Accepted: 01/08/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND/AIM To evaluate the association between programmed cell death ligand 1 (PD-L1) expression on both tumor cells (TC) and inflammatory cells (IC), tumor infiltrating lymphocytes (TILs), CD3+ and CD8+ lymphocytes and other clinicopathological parameters in primary infiltrative breast cancer (IBC) of young women, a population shown to have a worse prognosis. MATERIALS AND METHODS A retrospective study was performed collecting data from patients younger than 40 years old. Forty-five young women with IBC were included. Whole tissue sections were used to evaluate all parameters. RESULTS Twenty percent (20%) of cases showed PD-L1 expression by tumor cells (PDL1TC) and 44.4% showed PD-L1 expression by immune cells (PDL1IC). Furthermore, 28.88% revealed high stromal TILs. PDL1TC and PDL1IC expression were significantly associated with tumor diameter and expression of estrogen (ER) and progesterone (PR) receptors and Ki67. PDL1TC expression was also associated with grade. High TILs were associated with tumor diameter, ER and Ki67 expression. PDL1TC, PDL1IC expression and TILs were associated with the density of CD3+ and CD8+ lymphocytes. CONCLUSION Our results are similar to those of other age groups, as reported in the literature.
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Affiliation(s)
- Zoi Evangelou
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | | | - Georgia Karpathiou
- Department of Pathology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Helen Kourea
- Department of Pathology, University Hospital of Patras, Patras, Greece
| | - Sevasti Kamina
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Anna Goussia
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Haralambos Harissis
- Department of Surgery, Breast Unit, University Hospital of Ioannina, Ioannina, Greece
| | - Dimitrios Peschos
- Department of Physiology, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Anna Batistatou
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
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Tsonis O, Karpathiou G, Tsonis K, Paschopoulos M, Papoudou-Bai A, Kanavaros P. Immune cells in normal pregnancy and gestational trophoblastic diseases. Placenta 2020; 101:90-96. [PMID: 32942146 DOI: 10.1016/j.placenta.2020.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/24/2020] [Accepted: 09/02/2020] [Indexed: 10/23/2022]
Abstract
A healthy pregnancy requires the development of maternal-fetal immune tolerance against the semi-allogeneic fetus. The interactions between the trophoblastic cells and the maternal immune cells (p.e., natural killer cells, T cells, macrophages, dendritic cells and B-cells) are important for the development of the maternal-fetal immune tolerance and the placental growth and function. These interactions are mediated by cell to cell contact and secreted molecules such as cytokines, chemokines, angiogenic factors and growth factors. The maternal immune cells are present in normal non-pregnant and pregnant endometrium and there are several lines of evidence based on immunohistochemical and RNA sequencing data that the decidual immune cells and immune-related pathways display alterations in GTD, which may have pathogenetic and clinical significance. The present review focuses on the usefulness of the immunohistochemical analysis which provides multiparametric in situ information regarding the numbers, the immunophenotypes and the immunotopographical distributions of the decidual immune cells in tissue sections from normal pregnancy and GTD. We also discuss the significance of the immunohistochemical information in order to gain insight in the putative mechanisms explaining the alterations of the decidual immune cells in GTD and the potential implications of these alterations in the pathogenesis and the clinical behavior of GTD.
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Affiliation(s)
- Orestis Tsonis
- Department of Obstetrics and Gynecology, University Hospital of Ioannina, Ioannina, Greece.
| | | | - Klarisa Tsonis
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
| | - Minas Paschopoulos
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
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da Cruz Escaleira ALR, Kalogeropoulos D, Kalogeropoulos C, Ch'Ng SW, Sung VCT, Asproudis I, Papoudou-Bai A, Malamos K, Mitra A. Four common diseases causing sudden blindness or death in the eye emergency department. Postgrad Med J 2020; 97:256-263. [PMID: 32788313 DOI: 10.1136/postgradmedj-2020-138163] [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: 05/12/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 11/03/2022]
Abstract
Neuro-ophthalmological emergency disorders typically present with symptoms of visual loss, diplopia, ocular motility impairment or anisocoria. The ocular manifestations of these disorders are sometimes indicative of a more serious global neurology disease rather than an isolated ocular disease. The aim of this review is to highlight four important neuro-ophthalmological emergency disorders that must not be missed by an ophthalmologist. These include acute painful Horner's syndrome, painful cranial nerve III palsy, giant cell arteritis and transient ischaemic attack with amaurosis fugax. The delayed diagnosis of these clinical entities puts the patient at risk of blindness or death. Therefore, prompt diagnosis and management of these conditions are essential. This can be acquired from understanding the main signs and symptoms of the disease presentation together with a high index of suspicion while working at a busy eye emergency department.
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Affiliation(s)
| | | | | | - Soon Wai Ch'Ng
- Ophthalmology, Birmingham and Midland Eye Centre, Birmingham, UK
| | - Velota C T Sung
- Ophthalmology, Birmingham and Midland Eye Centre, Birmingham, UK
| | - Ioannis Asproudis
- Ophthalmology, University of Ioannina Faculty of Medicine, Ioannina, Greece
| | | | | | - Arijit Mitra
- Ophthalmology, Birmingham and Midland Eye Centre, Birmingham, UK
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Abstract
OBJECTIVES Uterine lesions with plexiform morphology are uncommon lesions with debated histogenesis. Despite being an incidental and usually benign finding (plexiform tumorlet), some cases can pose diagnostic problems. Their paucity in the recent literature adds to these difficulties and often causes ambiguities. The objective of this study is to systematically review published cases to highlight the historical aspects of their recognition, reappraising their morphology, histogenesis, and differential diagnosis. METHODS English literature is reviewed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, and 32 reports are analyzed. RESULTS Most cases are reported in the fourth to sixth decades. In most cases (66.7%), plexiform lesions are incidental findings while 33.3% of cases have been the chief pathology. Size varies from 0.5 to 195 mm. Plexiform foci were solitary in 78.2% cases and multiple in 21.8%. In 67.8% of cases, the lesions are reported as myometrial, while 32.2% are arising from endometrial stroma. Immunohistochemistry shows smooth muscle and no sex cord marker expression. They are usually benign lesions, but worrisome features include plexiform morphology in disseminated peritoneal leiomyomatosis, intravenous leiomyomatosis, and diffuse uterine leiomyomatosis. CONCLUSIONS Plexiform lesions represent a diverse pathology varying from epithelioid leiomyomas to epithelioid smooth muscle metaplasia of endometrial type of stroma.
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Affiliation(s)
| | | | - Alix Clemenson
- Department of Pathology, University Hospital of Saint-Etienne, France
| | - Celine Chauleur
- Department of Pathology, University Hospital of Ioannina, Greece
| | - Michel Peoc'h
- Department of Pathology, University Hospital of Saint-Etienne, France
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28
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Bazoukis X, Kalampokis N, Papoudou-Bai A, Bazoukis G, Grivas N. The increasing incidence of immigration and information-seeking behaviour of medical doctors in north-western Greece. Rural Remote Health 2020; 20:4877. [PMID: 32200643 DOI: 10.22605/rrh4877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Brain drain, an increasing phenomenon, can be defined as the international transfer of resources, in the form of a highly educated workforce, from developing to more developed countries. The tendency for migration leads to the activation of informational behaviour. The aim of this study was to search for the main causes of emigration of Greek medical doctors while their country suffers from an economic crisis. METHODS A cross-sectional study using a quantitative sampling method in the form of questionnaires was performed. These questionnaires were answered by 143 doctors working in the National Health System in the city of Ioannina in north-western Greece. Correlations between the examined parameters and predictive factors of immigration trend were recorded. RESULTS A total of 85% of the respondents were dissatisfied with their wage, only 30% were sure that they would keep their current job and nearly 52% of them answered negatively to questions regarding their professional development. Only 33% of the physicians were negatively disposed towards moving abroad. Most of them were permanent personnel. Unsatisfactory wages, job uncertainty, non-permanent working status and low professional development opportunities were correlated with the phenomenon of immigration (all p<0.001). In the multivariate binary logistic regression analysis, lower wage (odds ratio (OR)=0.66, 95% confidence interval (CI)=0.453-0.961, p=0.03) and job uncertainty (OR=1.355, 95%CI=1.040-1.767, p=0.025) were independent predictors of the immigration trend. CONCLUSION The tendency of Greek medical doctors to emigrate is strongly related to financial dissatisfaction, professional insecurity and minimal development opportunities. Especially in rural areas these high immigration trends can result in a shortage of GPs. The need for emigration is less common among qualified doctors with permanent contracts.
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Affiliation(s)
- Xenophon Bazoukis
- Department of Urology, G. Hatzikosta General Hospital, Ioannina, Greece
| | | | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Greece
| | - George Bazoukis
- Department of Cardiology, General Hospital of Athens “Evangelismos”, Athens, Greece
| | - Nikolaos Grivas
- Department of Urology, G. Hatzikosta General Hospital, Ioannina, Greece
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Evangelou Z, Froudarakis M, Ntolios P, Papoudou-Bai A, Anevlavis S, Gkrepi K, Batistatou A, Karpathiou G. Solitary glandular papilloma of the lung with molecular analysis: A case report and literature review. Pathol Res Pract 2020; 216:152905. [PMID: 32139260 DOI: 10.1016/j.prp.2020.152905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/12/2020] [Accepted: 02/27/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND Solitary papillomas of the lung are rare. One of their subtypes is glandular papilloma with only a very few cases described in the literature. We describe a case of pulmonary glandular papilloma with emphasis in its differential diagnosis and its molecular analysis. CASE DESCRIPTION A 64-years old former smoker was incidentally found to have an endobronchial tumor of the right main bronchus. Microscopic and immunohistochemical findings revealed a glandular papilloma. EGFR, KRAS and BRAF V600E mutation analysis, as well as HPV detection analysis revealed no mutation or HPV infection. Detailed differential diagnosis and literature review are presented. CONCLUSION Glandular papillomas of the lung are usually central, affecting older patients than squamous or mixed squamous cell and glandular papillomas. In previously reported cases, one glandular papilloma with KRAS mutation and another one with BRAF mutation have been reported. The present case harbored no mutation or HPV infection.
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Affiliation(s)
- Zoi Evangelou
- Department of Pathology, University Hospital of Ioannina, Greece
| | - Marios Froudarakis
- Department of Pulmonary Medicine, Democritus University of Thrace, Greece
| | - Paschalis Ntolios
- Department of Pulmonary Medicine, Democritus University of Thrace, Greece
| | | | - Stavros Anevlavis
- Department of Pulmonary Medicine, Democritus University of Thrace, Greece
| | | | - Anna Batistatou
- Department of Pathology, University Hospital of Ioannina, Greece
| | - Georgia Karpathiou
- Department of Pathology, University Hospital of Ioannina, Greece; Department of Pathology, University Hospital of Saint-Etienne, France.
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30
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Kalogeropoulos D, Papoudou-Bai A, Lane M, Goussia A, Charchanti A, Moschos MM, Kanavaros P, Kalogeropoulos C. Antigen-presenting cells in ocular surface diseases. Int Ophthalmol 2020; 40:1603-1618. [PMID: 32107692 DOI: 10.1007/s10792-020-01329-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 02/18/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE To review the role of antigen-presenting cells (APC) in the pathogenesis of ocular surface diseases (OSD). METHODS A thorough literature search was performed in PubMed database. An additional search was made in Google Scholar to complete the collected items. RESULTS APCs have the ability to initiate and direct immune responses and are found in most lymphoid and non-lymphoid tissues. APCs continuously sample their environment, present antigens to T cells and co-ordinate immune tolerance and responses. Many different types of APCs have been described and there is growing evidence that these cells are involved in the pathogenesis of OSD. OSD is a complex term for a myriad of disorders that are often characterized by ocular surface inflammation, tear film instability and impairment of vision. CONCLUSIONS This review summarizes the current knowledge concerning the immunotopographical distribution of APCs in the normal ocular surface. APCs appear to play a critical role in the pathology of a number of conditions associated with OSD including infectious keratitis, ocular allergy, dry eye disease and pterygium.
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Affiliation(s)
- Dimitrios Kalogeropoulos
- Department of Ophthalmology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Mark Lane
- Birmingham and Midland Eye Centre, Birmingham, UK
| | - Anna Goussia
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Antonia Charchanti
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Marilita M Moschos
- First Department of Ophthalmology, General Hospital of Athens G. Gennimatas, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Chris Kalogeropoulos
- Department of Ophthalmology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
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31
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Karpathiou G, Dumollard JM, Evangelou Z, Batistatou A, Peoc’h M, Papoudou-Bai A. Cytoplasmic p16 Is Expressed in Normal Brown Fat and Hibernomas. Int J Surg Pathol 2020; 28:496-501. [DOI: 10.1177/1066896920904423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
White adipose tissue browning has emerged as a putative therapy of obesity, and studies in mice have shown that Cdkn2a is implicated in white-to-brown transition. However, the role of Cdkn2a product p16 has been never studied in human brown fat tissue. The aim of the study is to investigate the expression of p16 in normal brown fat and in hibernoma, a lipoma containing brown fat-like adipocytes. Ten normal brown fat tissues and 5 hibernomas were immunohistochemically studied for p16 expression. Nearby white adipose tissue was used for comparison. All brown fat and hibernomas specimens express p16 in a cytoplasmic manner. Neighboring white adipose tissue is negative for p16 expression. Thus, cytoplasmic p16 may be associated with fat tissue browning.
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Affiliation(s)
- Georgia Karpathiou
- University Hospital of Ioannina, Ioannina, Greece
- North Hospital, University Hospital of St-Etienne, St-Etienne, France
| | | | | | | | - Michel Peoc’h
- North Hospital, University Hospital of St-Etienne, St-Etienne, France
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Verigos J, Karakaidos P, Kordias D, Papoudou-Bai A, Evangelou Z, Harissis HV, Klinakis A, Magklara A. The Histone Demethylase LSD1/ΚDM1A Mediates Chemoresistance in Breast Cancer via Regulation of a Stem Cell Program. Cancers (Basel) 2019; 11:cancers11101585. [PMID: 31627418 PMCID: PMC6827056 DOI: 10.3390/cancers11101585] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/13/2019] [Accepted: 10/15/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the leading cause of cancer death in the female population, despite advances in diagnosis and treatment. The highly heterogeneous nature of the disease represents a major obstacle to successful therapy and results in a significant number of patients developing drug resistance and, eventually, suffering from tumor relapse. Cancer stem cells (CSCs) are a small subset of tumor cells characterized by self-renewal, increased tumor-initiation capacity, and resistance to conventional therapies. As such, they have been implicated in the etiology of tumor recurrence and have emerged as promising targets for the development of novel therapies. Here, we show that the histone demethylase lysine-specific demethylase 1 (LSD1) plays an important role in the chemoresistance of breast cancer cells. Our data, from a series of in vitro and in vivo assays, advocate for LSD1 being critical in maintaining a pool of tumor-initiating cells that may contribute to the development of drug resistance. Combinatory administration of LSD1 inhibitors and anti-cancer drugs is more efficacious than monotherapy alone in eliminating all tumor cells in a 3D spheroid system. In conclusion, we provide compelling evidence that LSD1 is a key regulator of breast cancer stemness and a potential target for the design of future combination therapies.
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Affiliation(s)
- John Verigos
- Institute of Molecular Biology and Biotechnology-Foundation for Research and Technology, 45110 Ioannina, Greece.
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece.
| | - Panagiotis Karakaidos
- Institute of Molecular Biology and Biotechnology-Foundation for Research and Technology, 45110 Ioannina, Greece.
- Biomedical Research Foundation Academy of Athens, 11527 Athens, Greece.
| | - Dimitris Kordias
- Institute of Molecular Biology and Biotechnology-Foundation for Research and Technology, 45110 Ioannina, Greece.
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece.
| | | | - Zoi Evangelou
- Department of Pathology, University Hospital of Ioannina, 45500 Ioannina, Greece.
| | | | | | - Angeliki Magklara
- Institute of Molecular Biology and Biotechnology-Foundation for Research and Technology, 45110 Ioannina, Greece.
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, 45110 Ioannina, Greece.
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33
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Foukas P, Koliou GA, Papoudou-Bai A, Charchanti A, Vrettou E, Poulios C, Chatzopoulos K, Kotoula V, Fountzilas E, Zakopoulou R, Visvikis A, Pentheroudakis G, Pectasides D, Aravantinos G, Oikonomopoulos G, Papanikolaou A, Haidopoulos D, Zagouri F, Fountzilas G, Goussia A. Prognostic significance of elements of the adaptive immunity in the microenvironment of epithelial ovarian cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Lazaridis G, Kotoula V, Vrettou E, Kostopoulos I, Manousou K, Papadopoulou K, Giannoulatou E, Bobos M, Sotiropoulou M, Pentheroudakis G, Efstratiou I, Papoudou-Bai A, Psyrri A, Christodoulou C, Gogas H, Koutras A, Timotheadou E, Pectasides D, Zagouri F, Fountzilas G. Opposite Prognostic Impact of Single PTEN-loss and PIK3CA Mutations in Early High-risk Breast Cancer. Cancer Genomics Proteomics 2019; 16:195-206. [PMID: 31018950 DOI: 10.21873/cgp.20125] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 02/11/2019] [Revised: 03/28/2019] [Accepted: 03/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM PTEN-loss and PIK3CA mutations have been addressed as markers of PI3K activation in breast cancer. We evaluated these markers in early high-risk breast cancer (EBC) focusing on PTEN immunohistochemistry (IHC) issues, particularly in HER2-positive disease. MATERIALS AND METHODS We examined PTEN-loss and PIK3CA mutations in 1265 EBC patients treated with adjuvant chemotherapy within two clinical trials. Two different methods for the evaluation of PTEN IHC were used, one upfront binary (loss; no-loss) and the other initially multi-scale allowing for the classification of "grey zone" tumors with low and very low PTEN protein expression. RESULTS PTEN-loss (33.4% and 22.1%, depending on the IHC method) and PIK3CA mutations (29.6%) were associated with ER/PgR/HER2-negative and ER/PgR-positive disease, respectively. Concordance of the two IHC methods was moderate (Cohen's kappa 0.624). PTEN-loss discrepancy and intra-tumor heterogeneity concerned "grey zone" tumors that were prevalent among HER2-positive cancers. PTEN-loss independently conferred higher risk for relapse and death. Compared to single PIK3CA mutations,single PTEN-loss was independently associated with increased risk for relapse and death. Depending on the evaluation method, in HER2-positive cancer, PTEN-loss was without- or of marginal unfavorable prognostic significance. CONCLUSION In EBC, PTEN-loss is an independent predictor of poor outcome. When occurring singly, PTEN-loss and PIK3CA mutations have opposite prognostic impact. In HER2-positive disease, assessment of PTEN-loss by IHC appears unreliable and the marker is without clear prognostic significance.
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Affiliation(s)
- Georgios Lazaridis
- Department of Medical Oncology, Faculty of Medicine Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Thessaloniki, Greece
| | - Vassiliki Kotoula
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.,Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Vrettou
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kostopoulos
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kyriaki Manousou
- Section of Biostatistics, Hellenic Cooperative Oncology Group, Data Office, Athens, Greece
| | - Kyriaki Papadopoulou
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Giannoulatou
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.,The University of New South Wales, Kensington, NSW, Australia
| | - Mattheos Bobos
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Ioannis Efstratiou
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Amanda Psyrri
- Division of Oncology, Second Department of Internal Medicine, Attikon University Hospital, Athens, Greece
| | | | - Helen Gogas
- First Department of Medicine, Laiko General Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Angelos Koutras
- Division of Oncology, Department of Medicine, University Hospital, University of Patras Medical School, Patras, Greece
| | - Eleni Timotheadou
- Department of Medical Oncology, Faculty of Medicine Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Thessaloniki, Greece
| | - Dimitrios Pectasides
- Oncology Section, Second Department of Internal Medicine, Hippokration Hospital, Athens, Greece
| | - Flora Zagouri
- Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - George Fountzilas
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research, Aristotle University of Thessaloniki, Thessaloniki, Greece.,Aristotle University of Thessaloniki, Thessaloniki, Greece
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Alexopoulos G, Pavlidis L, Tsagarakis M, Delimpaltas A, Tsimponis A, Papalois A, Batistatou A, Papoudou-Bai A, Barritault D, Demiri E, Spyropoulou GA. Can ReGeneraTing Agents Improve Functional Recovery of Transected Peripheral Nerve through a Nerve Gap Bridged with an Artery Graft? J Reconstr Microsurg Open 2019. [DOI: 10.1055/s-0039-1692453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Background The purpose of this study was to use artery grafts filled with CACIPLIQ20 and see if they promote nerve regeneration.
Methods Sixty male Wistar rats were used. The rats were randomly divided into four experimental groups (n = 15): transected control group (negative control group [NCG]), sham-operated group (positive control group [SO]) artery graft group filled with saline (AG/NS), and CACIPLIQ20-treated group (AG/CACIPLIQ20). Fifteen rats were used as artery graft donors. In the SO group, the sciatic nerve was dissected from the surrounding tissues and left intact. In the NCG, AG/NS and AG/CACIPLIQ20) groups, a 10-mm gap was created in the left sciatic nerve. In the NCG group, the gap was not bridged with a graft. In the AG/NS group, the gap was bridged with a graft filled with saline. In the AG/CACIPLIQ20 group, the graft was filled with CACIPLIQ20. Walking track analysis was performed at 4, 8, 12, and 16 weeks after surgery. At 16 weeks postoperatively, the rats were sacrificed, nerve sections were harvested for histopathology analysis, and the weight ratio of the gastrocnemius muscle was measured.
Results There was no significant difference in myelin sheath thickness between the AG/NS and AG/CACIPLIQ20 groups. Muscle weight in the AG/CACIPLIQ20 group was higher but not statistically significant (p = 0.168) compared with the AG/NS group. Also, AG/CACIPLIQ20 mean was better than AG/NS mean, although there was no statistically significant difference (p = 0.605).
Conclusion There could be an indication that CACIPLIQ20 improves functional recovery of a transected peripheral nerve through a nerve gap bridged with an artery graft.
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Affiliation(s)
| | - Leonidas Pavlidis
- Clinic of Plastic Surgery, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Myron Tsagarakis
- Department of Plastic and Reconstructive Surgery, ENI Medical Group, Kavos Lefkimi, Corfu, Greece
| | - Alexandros Delimpaltas
- Clinic of Plastic Surgery, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonios Tsimponis
- Clinic of Plastic Surgery, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Papalois
- Department of Research and Development, "ELPEN" Pharmaceuticals, Athens, Greece
| | - Anna Batistatou
- Department of Pathology, Panepistimio Ioanninon, Ioannina, Greece
| | | | | | - Efterpi Demiri
- Clinic of Plastic Surgery, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Sioka C, Sakelariou K, Papoudou-Bai A, Tolis C, Al-Boucharali J, Fotopoulos A. Osteoblastic Solitary Plasmacytoma of Bone. Turk J Haematol 2019; 36. [PMID: 30820260 PMCID: PMC6516098 DOI: 10.4274/tjh.galenos.2019.0218.0419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Chrissa Sioka
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece,* Address for Correspondence: School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece Phone: +30 26510 07514 E-mail:
| | - Konstantinos Sakelariou
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
| | - Alexandra Papoudou-Bai
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Pathology, Ioannina, Greece
| | | | - Jihand Al-Boucharali
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
| | - Andreas Fotopoulos
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
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Sioka C, Sakelariou K, Papoudou-Bai A, Tolis C, Al-Boucharali J, Fotopoulos A. Osteoblastic Solitary Plasmacytoma of Bone. Turk J Haematol 2019; 36:117-119. [PMID: 30820260 DOI: 10.4274/tjh.galenos.2019.2018.0419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Chrissa Sioka
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
| | - Konstantinos Sakelariou
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
| | - Alexandra Papoudou-Bai
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Pathology, Ioannina, Greece
| | | | - Jihand Al-Boucharali
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
| | - Andreas Fotopoulos
- School of Health Sciences, University Hospital of Ioannina Faculty of Medicine, Department of Nuclear Medicine, Ioannina, Greece
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Rallis G, Koletsa T, Saridaki Z, Manousou K, Koliou GA, Kostopoulos I, Kotoula V, Makatsoris T, Kourea HP, Raptou G, Chrisafi S, Samantas E, Papaparaskeva K, Pazarli E, Papakostas P, Kafiri G, Mauri D, Papoudou-Bai A, Christodoulou C, Petraki K, Dombros N, Pectasides D, Fountzilas G. Association of Notch and Hedgehog Pathway Activation With Prognosis in Early-stage Colorectal Cancer. Anticancer Res 2019; 39:2129-2138. [PMID: 30952759 DOI: 10.21873/anticanres.13326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 02/14/2019] [Revised: 03/06/2019] [Accepted: 03/14/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Early-stage colorectal cancer (CRC) carries a wide range of survival probabilities. Novel biomarkers in this setting are eagerly awaited. Cancer stem cells (CSCs) are considered one of the reasons for treatment failure. This study sought to determine whether activation of pathways governing the function of CSC's could correlate with treatment outcomes. MATERIALS AND METHODS Tumor specimens from 325 patients were analyzed with immunohistochemistry (IHC) for Hedgehog and Notch pathway activation and results were correlated with prognosis. RESULTS Positive Notch3 protein expression was an unfavorable prognostic factor for disease-free survival (DFS) and overall survival (OS) (HR=2.43, p=0.024 and HR=2.56, p=0.028, respectively). Activation of the Shh pathway showed univariately longer DFS (HR=0.49, p=0.032). Possible crosstalk between the two pathways was indicated. No further associations between pathway activation and outcome were evident. CONCLUSION Apart from Notch 3, activation of the pathways, as indicated by IHC expression of their components, did not result in differences in terms of DFS or OS.
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Affiliation(s)
- Grigorios Rallis
- Department of Medical Oncology, School of Health Sciences, Faculty of Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Triantafyllia Koletsa
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Kyriaki Manousou
- Section of Biostatistics, Hellenic Cooperative Oncology Group, Data Office, Athens, Greece
| | | | - Ioannis Kostopoulos
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vassiliki Kotoula
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.,Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Thomas Makatsoris
- Division of Oncology, Department of Medicine, University Hospital, University of Patras Medical School, Patras, Greece
| | - Helen P Kourea
- Department of Pathology, University Hospital of Patras, Patras, Greece
| | - Georgia Raptou
- Department of Pathology, School of Health Sciences, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Epaminontas Samantas
- Third Department of Medical Oncology, Agii Anargiri Cancer Hospital, Athens, Greece
| | - Kleo Papaparaskeva
- Department of Pathology, General Hospital Konstantopouleio Agia Olga, Athens, Greece
| | - Elissavet Pazarli
- Department of Pathology, School of Health Sciences, Faculty of Medicine Thessaloniki, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Georgia Kafiri
- Department of Pathology, Hippokration Hospital, Athens, Greece
| | - Davide Mauri
- Department of Medical Oncology, Ioannina University Hospital, Ioannina, Greece
| | | | | | | | | | - Dimitrios Pectasides
- Oncology Section, Second Department of Internal Medicine, Hippokration Hospital, Athens, Greece
| | - George Fountzilas
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece .,Aristotle University of Thessaloniki, Thessaloniki, Greece
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Kaltsonoudis E, Pelechas E, Papoudou-Bai A, Markatseli TE, Elisaf M, Voulgari PV, Drosos AA. The impact of temporal artery biopsy for the diagnosis of giant cell arteritis in clinical practice in a tertiary university hospital. PLoS One 2019; 14:e0210845. [PMID: 30925156 PMCID: PMC6440612 DOI: 10.1371/journal.pone.0210845] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 03/12/2019] [Indexed: 12/31/2022] Open
Abstract
Background Temporal artery biopsy (TAB) is useful in assisting with giant cell arteritis (GCA) diagnosis but lacks sensitivity. The aim of our study was to assess the diagnostic impact of TAB histology in patients with suspected GCA on hospital admission. Methods A prospectively maintained database was queried for all TABs performed between 1-1-2000 until 31-12-2017 at the University Hospital of Ioannina. Thus, inclusion criteria were made on the grounds of every patient that underwent a TAB during the above-mentioned period, regardless of demographic, clinical and laboratory data. Results Two hundred forty-five TABs were included (149 females and 96 males), with a mean age of 64.5 (±3.5) years. The mean symptoms duration until admission to the hospital was 8.6 (±1.3) weeks and all had elevated acute phase reactants on admission. The reasons of admission were fever of unknown origin (FUO) in 114 (46.5%) patients, symptoms of polymyalgia rheumatica (PMR) in 84 (34.3%), new headache in 33 (13.5%), anemia of chronic disease (ACD) in 8 (3.32%) and eye disturbances in 6 (2.5%) patients. Positive results were found in 49 (20%) TABs. More specifically, in 14% of patients with FUO, 21% in those with PMR, while in patients with a new headache the percentage was 27%. Finally, 5 out of 6 (83.3%) of patients with ocular symptoms and only one (12.5%) of those suffering from ACD. Visual manifestations and FUO are correlated with a positive TAB. Conclusion It seems that TAB is useful in assisting with GCA diagnosis, but lacks sensitivity.
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Affiliation(s)
- Evripidis Kaltsonoudis
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | - Eleftherios Pelechas
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | | | - Theodora E. Markatseli
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | - Moses Elisaf
- Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | - Paraskevi V. Voulgari
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | - Alexandros A. Drosos
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
- * E-mail:
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Kourea HP, Koletsa T, Kotoula V, Koliou GA, Batistatou A, Pentheroudakis G, Arapantoni-Dadioti P, Zagouri F, Bobos M, Sotiropoulou M, Papoudou-Bai A, Chrisafi S, Efstratiou I, Aravantinos G, Nicolaou I, Gogas H, Visvikis A, Christodoulou C, Petraki C, Koutras A, Psyrri A, Pectasides D, Fountzilas G. Abstract P4-08-13: Prognostic significance of CD8+ tumor-infiltrating lymphocytes (TILs) in patients with early breast cancer (EBC) treated with dose-dense sequential adjuvant chemotherapy (dds-CT). An observational study (ACTRN12616001043426). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-08-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background - aim: Information on the prognostic role of cytotoxic CD8+ T cells in the era of modern adjuvant CT is limited. The primary objective of the present report is to assess the prognostic impact of CD8+ cells in patients with intermediate or high-risk EBC (T1-3N1-2M0) treated with dds-CT. Secondary endpoints are safety, disease-free survival (DFS) and overall survival (OS).
Patients and Methods: Patients (N=1,000) were treated with 4 cycles of Epirubicin, 75mg/m2, and Cyclophophamide, 600mg/m2 every 2 weeks followed by 4 cycles of Docetaxel (D), 100mg/m2 every 3 weeks with G-CSF support in all cycles. Trastuzumab was initiated concurrently with D and continued for a total of 1 year. Hormonal and radiation therapy were given post CT, as indicated. Formalin-fixed paraffin-embedded tumors were available for 642 patients (64.2%) and were centrally assessed for immunohistochemical subtypes (IHC4; N=526), stromal TILs density by morphology (N=636), as well as stromal and intratumoral cytotoxic CD8+ T cell numbers (N=554). TILs and CD8+ were assessed as continuous variables for associations and as 10% increments for outcome.
Results: In total, 901/1,000 pts (90.1%) completed 8 cycles of CT. Severe (gradeIII-IV) toxicitiesincludedneutropenia (5.6%), leucopenia (3.6%), lymphopenia (2.1%), hand-footsyndrome (2.1%), and hepatotoxicity (1.8%). Febrileneutropenia occurred in 1.6% of the patients. The 5-year DFS and OS rates were 89.5% and 93.1%, respectively. Luminal A tumors were classified in 26.2%, Luminal B in 35.2%, luminal HER2 in 9.5%; HER2-enriched in 7.2%; and, triple-negative (TNBC) in 21.9% of informative patients. Among subtypes, stromal TILs density was higher in HER2-enriched and TNBC (p<0.001); intratumoral CD8+ values were higher in TNBC (p<0.001); and, stromal CD8+ were higher in HER2-enriched (p=0.034). In all patients, TILs density and intratumoral CD8+ cell numbers were not associated with DFS and OS, while increased stromal CD8+ were marginally associated with prolonged DFS (HR=0.98, 95%CI 0.96-1.00, p=0.066).Adjusted for histological grade, menopausal, ER/PgR and nodal status, higher stromal CD8+ were associated with prolonged DFS (HR=0.98, 95% CI 0.96-1.00, p=0.043). In TNBC, higher stromal TILs density conferred prolonged DFS (HR=0.97, 95%CI 0.94-0.99, p=0.029), which retained its prognostic significance in multivariate analysis (HR=0.97, 95% CI 0.94-1.00, p=0.049).
Conclusions: In this study, dds-CT was well tolerated and active in patients with EBC. We confirm the presence of morphologically assessed higher TILs density, and of higher cytotoxic CD8+ T cell numbers in hormone receptor negative EBC, as well as the favorable prognostic impact of higher stromal TILs density in TNBC. In comparison to stromal TILs density, higher stromal CD8+ may confer favorable prognosis irrespectively of EBC subtype. Stromal CD8+ seems to be a marker worth further standardizing for reporting on immune cell infiltrates in EBC.
Citation Format: Kourea HP, Koletsa T, Kotoula V, Koliou G-A, Batistatou A, Pentheroudakis G, Arapantoni-Dadioti P, Zagouri F, Bobos M, Sotiropoulou M, Papoudou-Bai A, Chrisafi S, Efstratiou I, Aravantinos G, Nicolaou I, Gogas H, Visvikis A, Christodoulou C, Petraki C, Koutras A, Psyrri A, Pectasides D, Fountzilas G. Prognostic significance of CD8+ tumor-infiltrating lymphocytes (TILs) in patients with early breast cancer (EBC) treated with dose-dense sequential adjuvant chemotherapy (dds-CT). An observational study (ACTRN12616001043426) [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-08-13.
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Affiliation(s)
- HP Kourea
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - T Koletsa
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - V Kotoula
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - G-A Koliou
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - A Batistatou
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | | | | | - F Zagouri
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - M Bobos
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - M Sotiropoulou
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - A Papoudou-Bai
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - S Chrisafi
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - I Efstratiou
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - G Aravantinos
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - I Nicolaou
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - H Gogas
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - A Visvikis
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | | | - C Petraki
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - A Koutras
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - A Psyrri
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - D Pectasides
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
| | - G Fountzilas
- Hellenic Cooperative Oncology Group (HeCOG), Athens, Greece
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Kalogeropoulos D, Vartholomatos G, Mitra A, Elaraoud I, Ch'ng SW, Zikou A, Papoudou-Bai A, Moschos MM, Kanavaros P, Kalogeropoulos C. Primary vitreoretinal lymphoma. Saudi J Ophthalmol 2019; 33:66-80. [PMID: 30930667 PMCID: PMC6424706 DOI: 10.1016/j.sjopt.2018.12.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 12/03/2018] [Accepted: 12/30/2018] [Indexed: 11/30/2022] Open
Abstract
Primary vitreoretinal lymphoma (PVRL) is a rare ocular lymphoid malignancy, which consists a subset of primary central system lymphoma (PCNSL) and the most common type of intraocular lymphoma. The involvement of eyes is estimated to be approximately 20% of PCNSL, but the brain involvement may be up to 80% of PVRL. Typically, PVRL is a high grade B-cell malignancy of the retina and needs to be assorted from choroidal low-grade B-cell lymphomas. Very often PVRL masquerades and can be erroneously diagnosed as chronic uveitis, white dot syndromes or other neoplasms. Establishing an accurate diagnosis may involve cytology/pathology, immunohistochemistry, flow cytometry, molecular pathology and cytokine profile analysis. There is inadequate information about PVRL’s true incidence, ethnic/geographical variation and pathogenetic mechanisms. The therapeutic approach of PVRL involves aggressive chemotherapy and radiation therapy. Although PVRL tends to have a good response to the initial treatment, the prognosis is poor and the survival restricted due to the high relapse rates and CNS involvement.
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Affiliation(s)
- Dimitrios Kalogeropoulos
- Birmingham and Midland Eye Centre, Birmingham, United Kingdom.,Department of Ophthalmology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Georgios Vartholomatos
- Hematology Laboratory, Unit of Molecular Biology, University Hospital of Ioannina, Ioannina, Greece
| | - Arijit Mitra
- Birmingham and Midland Eye Centre, Birmingham, United Kingdom
| | | | - Soon Wai Ch'ng
- Birmingham and Midland Eye Centre, Birmingham, United Kingdom
| | - Anastasia Zikou
- Department of Radiology, Faculty of Medicine, School of Health Science, University of Ioannina, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Marilita M Moschos
- First Department of Ophthalmology, General Hospital of Athens G. Gennimatas, Medical School, National and Kapodistrian University of Athens, Greece
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Chris Kalogeropoulos
- Department of Ophthalmology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
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42
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Barbouti A, Evangelou K, Pateras IS, Papoudou-Bai A, Patereli A, Stefanaki K, Rontogianni D, Muñoz-Espín D, Kanavaros P, Gorgoulis VG. In situ evidence of cellular senescence in Thymic Epithelial Cells (TECs) during human thymic involution. Mech Ageing Dev 2019; 177:88-90. [PMID: 29490231 DOI: 10.1016/j.mad.2018.02.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 12/18/2017] [Revised: 02/21/2018] [Accepted: 02/23/2018] [Indexed: 02/02/2023]
Abstract
Cellular senescence, an age-related process in response to damage and stress, also occurs during normal development and adult life. The thymus is a central lymphoepithelial organ of the immune system that exhibits age-related changes termed thymic involution. Since the mechanisms regulating thymic involution are still not well elucidated, we questioned whether cellular senescence is implicated in this process. We demonstrate, for the first time in situ, that cellular senescence occurs during human thymic involution using SenTraGor™, a novel chemical compound that is applicable in archival tissue material, providing thus further insights in thymus histophysiology.
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Affiliation(s)
- Alexandra Barbouti
- Department of Anatomy-Histology-Embryology, Medical School, University of Ioannina, Ioannina, Greece
| | - Konstantinos Evangelou
- Department of Anatomy-Histology-Embryology, Medical School, University of Ioannina, Ioannina, Greece; Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
| | - Ioannis S Pateras
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Amalia Patereli
- Department of Pathology, Agia Sophia Hospital, Athens, Greece
| | | | - Dimitra Rontogianni
- Department of Anatomic Pathology, Evangelismos General Hospital, University of Athens, Athens, Greece
| | - Daniel Muñoz-Espín
- CRUK Cambridge Centre Early Detection Programme, Department of Oncology, University of Cambridge, Hutchison/MRC Research Centre, Cambridge, UK
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, Medical School, University of Ioannina, Ioannina, Greece
| | - Vassilis G Gorgoulis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Faculty Institute for Cancer Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK; Biomedical Research Foundation, Academy of Athens, Athens, Greece.
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Pelechas E, Papoudou-Bai A, Voulgari PV, Drosos AA. Granuloma annulare development in a patient with rheumatoid arthritis treated with tocilizumab: case-based review. Rheumatol Int 2018; 39:353-357. [PMID: 30523477 DOI: 10.1007/s00296-018-4212-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 10/08/2018] [Accepted: 11/24/2018] [Indexed: 11/29/2022]
Abstract
Granuloma annulare (GA) is the most common non-infectious disease. Despite the fact that it is a benign disease, it can be associated with a variety of disorders and certain drugs including biological disease-modifying anti-rheumatic drugs (bDMARDs). A 50-year-old man with a history of rheumatoid arthritis refractory to methotrexate, hydroxychloroquine and infliximab was treated with tocilizumab (TCZ), an interleukin-6 receptor antagonist, 162 mg subcutaneously every week. The patient responded very well to TCZ treatment with a decrease of acute phase reactants and reduction of disease activity score for 28-joints count. However, 3 months later he developed erythematous polycyclic eruptions affecting the lower extremities consistent with a diagnosis of GA which was confirmed by a skin biopsy. TCZ has been discontinued and the patient was treated with prednisone presenting complete resolution of skin manifestations after 4 weeks. This is the first case of GA development during TCZ treatment. Thus, we review the literature and discuss the relevant cases of GA development in patients treated with bDMARDs. When dealing with patients treated with these agents, all physicians should be aware of possible adverse events and the potential development of such complications.
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Affiliation(s)
- Eleftherios Pelechas
- Department of Internal Medicine, Rheumatology Clinic, Medical School, University of Ioannina, 45110, Ioannina, Greece
| | | | - Paraskevi V Voulgari
- Department of Internal Medicine, Rheumatology Clinic, Medical School, University of Ioannina, 45110, Ioannina, Greece
| | - Alexandros A Drosos
- Department of Internal Medicine, Rheumatology Clinic, Medical School, University of Ioannina, 45110, Ioannina, Greece.
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Triantafyllidi E, Papoudou-Bai A, Alexiou GA, Zikou A, Charchanti A, Konsolakis N, Skiada D, Voulgaris S, Goussia AC. Adult intradural extramedullary teratoma of the spinal cord: A case presentation. Clin Neurol Neurosurg 2018; 175:54-56. [DOI: 10.1016/j.clineuro.2018.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 10/01/2018] [Accepted: 10/14/2018] [Indexed: 10/28/2022]
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45
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Papoudou-Bai A, Marinos L, Papathanasiou K, Kanavaros P, Kapsali E. Simultaneous Presence of Follicular Lymphoma, Diffuse Large B-cell Lymphoma, and Hodgkin-like Lymphoma. Turk J Haematol 2018; 35:308-309. [PMID: 30398157 PMCID: PMC6256824 DOI: 10.4274/tjh.2018.0183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
| | - Leonidas Marinos
- Evangelismos General Hospital, Clinic of Hematopathology, Athens, Greece
| | | | - Panagiotis Kanavaros
- University of Ioannina Faculty of Medicine, Department of Anatomy-Histology-Embryology, Ioannina, Greece
| | - Eleni Kapsali
- University of Ioannina Faculty of Medicine, Department of Hematology, Ioannina, Greece
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Goussia AC, Papoudou-Bai A, Charchanti A, Kitsoulis P, Kanavaros P, Kalef-Ezra J, Stefanou D, Agnantis NJ. Alterations of p53 and Rb Pathways Are Associated with High Proliferation in Bladder Urothelial Carcinomas. Anticancer Res 2018; 38:3985-3988. [PMID: 29970521 DOI: 10.21873/anticanres.12685] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 04/26/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Since most cancers are associated with alterations of the p53 and Rb pathways, the expression of p53, p21, Rb, p16, p27, cyclin D1, cyclin A, cyclin B1 and Ki67 proteins were analyzed in bladder urothelial carcinomas (BUC). MATERIALS AND METHODS One hundred twenty-two cases of BUC were studied by immunohistochemistry. RESULTS The pathways p53/p21 and Rb/p16/cyclin D1 exhibited alterations in 81/115 and 63/84 cases, respectively. Alterations of the p53/p21 and Rb/p16/cyclin D1 pathways were positively correlated with high cyclin A expression. High expression of p53, Ki67, cyclin A and cyclin B1 was inversely correlated with the papillary morphology of the tumor and positively with tumor grade and T-stage. CONCLUSION The results showed that a) alterations of the p53 and Rb pathways are associated with high proliferation of tumor cells in BUC and b) high expression of cell-cycle proteins is associated with adverse histopathological parameters of these tumors.
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Affiliation(s)
- Anna C Goussia
- Department of Pathology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Alexandra Papoudou-Bai
- Department of Pathology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Antonia Charchanti
- Department of Anatomy-Histology-Embryology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Panagiotis Kitsoulis
- Department of Anatomy-Histology-Embryology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Panagiotis Kanavaros
- Department of Anatomy-Histology-Embryology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - John Kalef-Ezra
- Department of Medical Physics Medicine, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Dimitrios Stefanou
- Department of Pathology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Niki J Agnantis
- Department of Pathology, Medical Faculty, School of Health Sciences, University of Ioannina, Ioannina, Greece
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Mavroeidis L, Metaxa-Mariatou V, Papoudou-Bai A, Lampraki AM, Kostadima L, Tsinokou I, Zarkavelis G, Papadaki A, Petrakis D, Gκoura S, Kampletsas E, Nasioulas G, Batistatou A, Pentheroudakis G. Comprehensive molecular screening by next generation sequencing reveals a distinctive mutational profile of KIT/ PDGFRA genes and novel genomic alterations: results from a 20-year cohort of patients with GIST from north-western Greece. ESMO Open 2018; 3:e000335. [PMID: 29636989 PMCID: PMC5890860 DOI: 10.1136/esmoopen-2018-000335] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 12/17/2022] Open
Abstract
Introduction Gastrointestinal stromal tumours (GIST) are mesenchymal neoplasms that usually carry an activating mutation in KIT or platelet-derived growth factor receptor alpha (PDGFRA) genes with predictive and prognostic significance. We investigated the extended mutational status of GIST in a patient population of north-western Greece in order to look at geopraphic/genotypic distinctive traits. Patient and methods Clinicopathological and molecular data of 38 patients diagnosed from 1996 to 2016 with GIST in the region of Epirus in Greece were retrospectively assessed. Formalin-fixed paraffin-embedded tumours were successfully analysed for mutations in 54 genes with oncogenic potential. Next generation sequencing was conducted by using the Ion AmpliSeqCancer Hotspot Panel V.2 for DNA analysis (Thermofisher Scientific). Results Among 38 tumours, 24 (63.16%) and seven (18.42%) of the tumours harboured mutations in the KIT and PDGFRA genes, respectively, while seven (18.42%) tumours were negative for either KIT or PDGFRA mutation. No mutations were detected in five (13.16%) cases. Concomitant mutations of BRAF and fibroblast growth factor receptor 3 (FGFR3) genes were observed in two patients with KIT gene mutation. Two patients with KIT/PDGFRA wild-type GIST had mutations in either KRAS or phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) genes. There was no significant survival difference regarding the exonic site of mutation in either KIT or PDGFRA gene. The presence of a mutation in pathway effectors downstream of KIT or PDGFRA, such as BRAF, KRAS or PIK3CA, was associated with poor prognosis. Adverse prognosticators were also high mitotic index and the advanced disease status at diagnosis. Conclusions We report comparable incidence of KIT and PDGFRA mutation in patients with GIST from north-western Greece as compared with cohorts from other regions. Interestingly, we identified rare mutations on RAS, BRAF and PIK3CA genes in patients with poor prognosis.
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Affiliation(s)
- Leonidas Mavroeidis
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | | | | | | | - Lida Kostadima
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | - Ilias Tsinokou
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | - George Zarkavelis
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | - Alexandra Papadaki
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | - Dimitrios Petrakis
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | - Stefania Gκoura
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | - Eleftherios Kampletsas
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
| | | | - Anna Batistatou
- Department of Pathology, School of Medicine, Ioannina, Greece
| | - George Pentheroudakis
- Department of Medical Oncology, School of Medicine, Ioannina, Greece.,Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), Ioannina, Greece
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48
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McHugh D, Caduff N, Barros MHM, Rämer PC, Raykova A, Murer A, Landtwing V, Quast I, Styles CT, Spohn M, Fowotade A, Delecluse HJ, Papoudou-Bai A, Lee YM, Kim JM, Middeldorp J, Schulz TF, Cesarman E, Zbinden A, Capaul R, White RE, Allday MJ, Niedobitek G, Blackbourn DJ, Grundhoff A, Münz C. Persistent KSHV Infection Increases EBV-Associated Tumor Formation In Vivo via Enhanced EBV Lytic Gene Expression. Cell Host Microbe 2018; 22:61-73.e7. [PMID: 28704654 DOI: 10.1016/j.chom.2017.06.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 05/09/2017] [Accepted: 06/20/2017] [Indexed: 11/15/2022]
Abstract
The human tumor viruses Epstein-Barr virus (EBV) and Kaposi sarcoma-associated herpesvirus (KSHV) establish persistent infections in B cells. KSHV is linked to primary effusion lymphoma (PEL), and 90% of PELs also contain EBV. Studies on persistent KSHV infection in vivo and the role of EBV co-infection in PEL development have been hampered by the absence of small animal models. We developed mice reconstituted with human immune system components as a model for KSHV infection and find that EBV/KSHV dual infection enhanced KSHV persistence and tumorigenesis. Dual-infected cells displayed a plasma cell-like gene expression pattern similar to PELs. KSHV persisted in EBV-transformed B cells and was associated with lytic EBV gene expression, resulting in increased tumor formation. Evidence of elevated lytic EBV replication was also found in EBV/KSHV dually infected lymphoproliferative disorders in humans. Our data suggest that KSHV augments EBV-associated tumorigenesis via stimulation of lytic EBV replication.
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MESH Headings
- Animals
- B-Lymphocytes/virology
- Cell Line, Tumor
- Coinfection
- Cytokines/blood
- DNA, Viral/analysis
- Disease Models, Animal
- Epstein-Barr Virus Infections/blood
- Epstein-Barr Virus Infections/immunology
- Epstein-Barr Virus Infections/virology
- Gene Expression Regulation, Viral
- Genes, Viral/genetics
- Herpesviridae Infections/blood
- Herpesviridae Infections/immunology
- Herpesviridae Infections/virology
- Herpesvirus 4, Human/genetics
- Herpesvirus 4, Human/pathogenicity
- Herpesvirus 8, Human/genetics
- Herpesvirus 8, Human/pathogenicity
- Herpesvirus 8, Human/physiology
- High-Throughput Nucleotide Sequencing
- Humans
- Lymphoma, Primary Effusion/etiology
- Lymphoma, Primary Effusion/virology
- Mice
- Neoplasms/virology
- Spleen/pathology
- Spleen/virology
- Survival Rate
- Virus Replication
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Affiliation(s)
- Donal McHugh
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Nicole Caduff
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | | | - Patrick C Rämer
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Ana Raykova
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Anita Murer
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Vanessa Landtwing
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Isaak Quast
- Neuroinflammation, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Christine T Styles
- Section of Virology, Faculty of Medicine, Imperial College London, London, UK
| | - Michael Spohn
- Virus Genomics, Heinrich Pette Institute, Hamburg, Germany
| | - Adeola Fowotade
- School of Biosciences and Medicine, University of Surrey, Guildford, UK
| | | | | | - Yong-Moon Lee
- Departments of Pathology and Medical Science, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jin-Man Kim
- Departments of Pathology and Medical Science, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jaap Middeldorp
- Department of Pathology, VU University Medical Center and Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Thomas F Schulz
- Institute of Virology, Hannover Medical School, Hannover and German Centre of Infection Research (DZIF), Hannover-Braunschweig Site, Germany
| | - Ethel Cesarman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Andrea Zbinden
- Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Riccarda Capaul
- Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Robert E White
- Section of Virology, Faculty of Medicine, Imperial College London, London, UK
| | - Martin J Allday
- Section of Virology, Faculty of Medicine, Imperial College London, London, UK
| | | | | | - Adam Grundhoff
- Virus Genomics, Heinrich Pette Institute, Hamburg, Germany
| | - Christian Münz
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland.
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49
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Boussios S, Zerdes I, Vassou A, Bareta E, Seraj E, Papoudou-Bai A, Pavlidis N, Batistatou A, Pentheroudakis G. Extranodal diffuse large B-cell lymphomas: A retrospective case series and review of the literature. Hematol Rep 2018; 10:7070. [PMID: 29721249 PMCID: PMC5907641 DOI: 10.4081/hr.2018.7070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 04/15/2017] [Accepted: 04/18/2017] [Indexed: 12/18/2022] Open
Abstract
Non-Hodgkin lymphomas commonly show extranodal involvement (25-30%) but primary diffuse large B-cell lymphomas (DLBCL) with extranodal localization represent clinically and molecularly distinct entities. The present study involved retrospective analysis of case records of 4 patients who were diagnosed with extranodal DLBCL between 2010 and 2016 at the Medical Oncology and Hematology Departments of the Ioannina University Hospital, Greece. Median age of presentation was 69 years (range 60-77 years). There were 2 males and 2 females. The sites of DLBCL involvement included adrenal gland, mandible, cervix uteri, and ileum. Two patients had B symptoms while none had bone marrow involvement. After staging workup, all the patients fell into IE stage. The treatment approach included chemotherapy combined with rituximab (R), whereas one patient received additionally irradiation therapy. Post-treatment positron emission tomography-computed tomography scan was performed in 3 patients. In terms of the outcome, 3 patients are alive in complete response, whereas one was lost in follow-up. Further prospective data analyses are required so as to better elucidate the biology and course of extranodal DLBCL.
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Affiliation(s)
- Stergios Boussios
- Department of Medical Oncology
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
| | - Ioannis Zerdes
- Department of Medical Oncology
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
| | - Amalia Vassou
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
- Department of Hematology
| | - Eleni Bareta
- Department of Medical Oncology
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
| | - Esmeralda Seraj
- Department of Medical Oncology
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
| | | | - Nicholas Pavlidis
- Department of Medical Oncology
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
| | - Anna Batistatou
- Department of Pathology, Medical School, University of Ioannina, Greece
| | - George Pentheroudakis
- Department of Medical Oncology
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN)
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50
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Spiliopoulos K, Peschos D, Batistatou A, Ntountas I, Papoudou-Bai A, Zioga A, Agnantis N, Kitsos G. Immunohistochemical Study of Vasculogenic Mimicry and Angiogenesis in Melanocytic Tumors of the Eye and the Periocular Area. Anticancer Res 2017; 37:1113-1120. [PMID: 28314272 DOI: 10.21873/anticanres.11424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 12/12/2016] [Revised: 02/01/2017] [Accepted: 02/02/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM The ability of a tumor to grow requires a sufficient blood supply. Microvascular density is considered the standard for assessing the neovasculature. Tumor cell vasculogenic mimicry refers to the formation of tumor cell-lined vessels that contribute to tumor neovascularization. The aim of the present work was to study angiogenesis and vasculogenic mimicry in benign and malignant melanocytic tumors of the eye and the periocular region. PATIENTS AND METHODS Histological sections from 118 patients were studied. Eighty-eight of the patients had nevi while the remaining 30 had malignant melanomas. Microvascular density was assessed by using antibodies against the endothelial cell markers CD31 and CD34. Vascular-like channels between neoplastic cells, that were not lined by endothelial cells and thus were negative for CD31 and CD34, represented areas of vasculogenic mimicry. RESULTS Angiogenesis was more pronounced in melanomas compared to melanocytic nevi and was increased in melanomas with high mitotic index and/or epithelioid cell preponderance compared to melanomas with low mitotic index and/or spindle cell predominance. Vasculogenic mimicry was observed in many melanomas, while it was evident in the minority of benign nevi as well. CONCLUSION The existence of vasculogenic mimicry in benign nevi might have prognostic implications.
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Affiliation(s)
| | - Dimitrios Peschos
- Department of Physiology, University Hospital of Ioannina, Ioannina, Greece
| | - Anna Batistatou
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Ioannis Ntountas
- First Department of Ophthalmology, 'G. Gennimatas' General Hospital of Athens, University of Athens, Athens, Greece
| | | | - Aikaterini Zioga
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Niki Agnantis
- Department of Physiology, University Hospital of Ioannina, Ioannina, Greece
| | - Georgios Kitsos
- Department of Ophthalmology, University Hospital of Ioannina, Ioannina, Greece
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