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Ortiz –Villalón C, De Petris L, Kis L, Yoshikawa A, Ngoc H, Roden A, Fukuoka J, Montero A. P3.09-05 Significance of the Expression of PD-L1/PD-1 by Tumoral and Immune Cells in Non-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Helgadottir H, Kis L, Ljungman P, Larkin J, Kefford R, Ascierto PA, Hansson J, Masucci G. Lethal aplastic anemia caused by dual immune checkpoint blockade in metastatic melanoma. Ann Oncol 2018; 28:1672-1673. [PMID: 28407116 DOI: 10.1093/annonc/mdx177] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 01/12/2023] Open
Affiliation(s)
- H Helgadottir
- Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital
| | - L Kis
- Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital
| | - P Ljungman
- Departments of Allogeneic Stem Cell Transplantation and Hematology, Karolinska University Hospital.,Division of Hematology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - J Larkin
- Melanoma Unit, Royal Marsden NHS Foundation Trust, London.,Royal Marsden Hospital, London, UK
| | - R Kefford
- Westmead Hospital, Melanoma Institute Australia and Macquarie University, Sydney, Australia
| | - P A Ascierto
- Melanoma, Cancer Immunotherapy and Innovative Therapies Unit, Istituto Nazionale Tumori di Napoli Fondazione "G. Pascale", Naples, Italy
| | - J Hansson
- Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital
| | - G Masucci
- Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital
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Ortiz –Villalón C, Yoshikawa A, Kis L, Montero A, Roden A, Pham H, Fernandez C, Fukuoka J, Lewensohn R, De Petris L. P2.02-042 Clinical Significance of the Tumor Expression of PD-L1 Using Four Immunohistochemistry Assays in Non-Small Cell Lung Cancer. Multicentre Study. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Atsaves V, Tsesmetzis N, Chioureas D, Kis L, Leventaki V, Drakos E, Panaretakis T, Grander D, Medeiros LJ, Young KH, Rassidakis GZ. PD-L1 is commonly expressed and transcriptionally regulated by STAT3 and MYC in ALK-negative anaplastic large-cell lymphoma. Leukemia 2017; 31:1633-1637. [PMID: 28344319 DOI: 10.1038/leu.2017.103] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- V Atsaves
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - N Tsesmetzis
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - D Chioureas
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - L Kis
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden.,Department of Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden
| | - V Leventaki
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN USA
| | - E Drakos
- Department of Pathology, University of Crete Medical School, Heraklion Crete, Greece
| | - T Panaretakis
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - D Grander
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - L J Medeiros
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - K H Young
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - G Z Rassidakis
- Department of Oncology and Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden.,Department of Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden.,Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
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Ma L, Maruwge W, Strambi A, D'Arcy P, Pellegrini P, Kis L, de Milito A, Lain S, Brodin B. SIRT1 and SIRT2 inhibition impairs pediatric soft tissue sarcoma growth. Cell Death Dis 2014; 5:e1483. [PMID: 25341037 PMCID: PMC4237232 DOI: 10.1038/cddis.2014.385] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 08/05/2014] [Accepted: 08/07/2014] [Indexed: 11/29/2022]
Abstract
Sirtuins are NAD+ dependent deacetylases and/or ADP-ribosyl transferases active on histone and non-histone substrates. The first sirtuin was discovered as a transcriptional repressor of the mating-type-loci (Silent Information Regulator sir2) in the budding yeast, where it was shown to extend yeast lifespan. Seven mammalian sirtuins (SIRT1-7) have been now identified with distinct subcellular localization, enzymatic activities and substrates. These enzymes regulate cellular processes such as metabolism, cell survival, differentiation, DNA repair and they are implicated in the pathogenesis of solid tumors and leukemias. The purpose of the present study was to investigate the role of sirtuin expression, activity and inhibition in the survival of pediatric sarcoma cell lines.We have analyzed the expression of SIRT1 and SIRT2 in a series of pediatric sarcoma tumor cell lines and normal cells, and we have evaluated the activity of the sirtuin inhibitor and p53 activator tenovin-6 (Tv6) in synovial sarcoma and rhabdomyosarcoma cell lines. We show that SIRT1 is overexpressed in synovial sarcoma biopsies and cell lines in comparison with normal mesenchymal cells. Tv6 induced apoptosis as well as impaired autophagy flux. Using siRNA to knock down SIRT1 and SIRT2, we show that the expression of both proteins is crucial for the survival of rhabdomyosarcoma cells and that the loss of SIRT1 expression results in a decreased LC3II expression. Our results show that SIRT1 and SIRT2 expressions are crucial for the survival of synovial sarcomas and rhabdomyosarcomas, and demonstrate that the pharmacological inhibition of sirtuins impairs the autophagy process and induces tumor cell death.
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Affiliation(s)
- L Ma
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - W Maruwge
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - A Strambi
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - P D'Arcy
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - P Pellegrini
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - L Kis
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - A de Milito
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - S Lain
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - B Brodin
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
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Kis L, Pfaffenberger M. [Painless jaundice after ecstasy and alcohol consumption]. Praxis (Bern 1994) 2007; 96:1035-7. [PMID: 17639967 DOI: 10.1024/1661-8157.96.25.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Ein 21-jähriger Patient wurde uns vom Hausarzt wegen seit einer Woche bestehendem Ikterus mit dunklem Urin zugewiesen. Im Labor wurde eine 50fache Erhöhung der Transaminasen bei gleichzeitiger Bilirubinurie, ausgeprägter Cholestase und leicht vermindertem INR von 1,2 (Quick 64%) festgestellt. Eine virale, autoimmunologisch bedingte Hepatitis oder hereditäre Hämochromatose konnte serologisch ausgeschlossen werden. Die Abdomensonographie fiel bis auf eine leichte Hepatomegalie, ohne Anhaltspunkte für intra- oder extrahepatische Cholestase, unauffällig aus. Die Leberbiopsie zeigte eine subakute Hepatitis mit Leberzellnekrose. Anamnestisch war dem Ikterus ein Alkoholkonsum unter gleichzeitiger, erstmaliger Einnahme von Ecstasy vorausgegangen. Es wurde die Diagnose einer Ecstasy- und Alkohol-induzierten schweren nekrotisierenden Hepatitis gestellt. Nach 14 Tagen zeichnete sich der Rückgang der Hepatitis ab mit sinkenden Leberwerten und normalem Spontan-INR. Die Leberwerte normalisierten sich schliesslich nach zwei Monaten vollständig.
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Affiliation(s)
- L Kis
- Medizinische Klinik, Kantonales Spital Sursee-Wolhusen KSSW.
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Kis L, Heitzmann F, Keusch G, Möddel M. [Severe anemia in the framework of zidovudine treatment in HIV disease]. Praxis (Bern 1994) 2006; 95:119-22. [PMID: 16485608 DOI: 10.1024/0369-8394.95.4.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Eine 34-jährige Patientin mit einer HIV-Erkrankung im Stadium C3 nach CDC-Klassifikation wurde uns wegen einer symptomatischen Anämie zugewiesen. Die Patientin wurde seit 18 Monaten mit einer antiretroviralen Therapie mit Nukleosidanaloga (Combivir®: Zidovudin , Lamivudin) und HIV-Protease-Inhibitoren (Kaletra®: Lopinavir, Ritonavir) behandelt. Es wurde eine schwere hypoproliferative, makrozytäre Anämie (Hämoglobin 3.0 g/dl) festgestellt. Eine Blutungsanämie und ein Eisen-, Vitamin-B12- oder Folsäuremangel wurden ausgeschlossen. Die Knochenmarksuntersuchung zeigte bei fehlenden peripheren Retikulozyten eine isoliert verminderte Erythropoese bei ansonsten unauffälligen, normalreifenden Zellreihen. Es wurde die Diagnose einer Zidovudin-induzierten Pure red cell aplasia gestellt. Nach Absetzen von Zidovudin und Umstellung der antiretroviralen Therapie erholte sich die Erythropoese mit Normalisierung des Hämoglobin.
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Affiliation(s)
- L Kis
- Medizinische Klinik, Stadtspital Waid Zürich
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