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Gautron Moura B, Gerard CL, Testart N, Caikovski M, Wicky A, Aedo-Lopez V, Berthod G, Homicsko K, Prior JO, Dromain C, Kandalaft LE, Cuendet MA, Michielin O. Estimated Costs of the Ipilimumab-Nivolumab Therapy and Related Adverse Events in Metastatic Melanoma. Cancers (Basel) 2022; 15:cancers15010031. [PMID: 36612030 PMCID: PMC9817856 DOI: 10.3390/cancers15010031] [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: 11/14/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Combined ipilimumab and nivolumab significantly improve outcomes in metastatic melanoma patients but bear an important financial impact on the healthcare system. Here, we analyze the treatment costs, focusing on irAE. We conducted a retrospective analysis of 62 melanoma patients treated with ipilimumab-nivolumab at the Lausanne University Hospital between 1 June 2016 and 31 August 2019. The frequency of irAEs and outcomes were evaluated. All melanoma-specific costs were analyzed from the first ipilimumab-nivolumab dose until the therapy given subsequently or death. A total of 54/62 (87%) patients presented at least one irAE, and 31/62 (50%) presented a grade 3-4 irAE. The majority of patients who had a complete response 12/14 (86%) and 21/28 (75%) of overall responders presented a grade 3-4 toxicity, and there were no responses in patients without toxicity. Toxicity costs represented only 3% of the total expenses per patient. The most significant contributions were medication costs (44%) and disease costs (39%), mainly disease-related hospitalization costs, not toxicity-related. Patients with a complete response had the lowest global median cost per week of follow up (EUR 2425) and patients who had progressive disease (PD), the highest one (EUR 8325). Except for one patient who had a Grade 5 toxicity (EUR 6043/week), we observe that less severe toxicity grades (EUR 9383/week for Grade 1), or even the absence of toxicity (EUR 9922/week), are associated with higher median costs per week (vs. EUR 3266/week for Grade 4 and EUR 2850/week for Grade 3). The cost of toxicities was unexpectedly low compared to the total costs, especially medication costs. Patients with higher toxicity grades had better outcomes and lower total costs due to treatment discontinuation.
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Affiliation(s)
- Bianca Gautron Moura
- Service of Oncology, Cantonal Hospital Fribourg (HFR), Chemin des Pensionnats 1-6, 1700 Fribourg, Switzerland
- Correspondence: (B.G.M.); (O.M.)
| | - Camille L. Gerard
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
| | - Nathalie Testart
- Department of Radiology, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011 Lausanne, Switzerland
| | - Marian Caikovski
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
| | - Alexandre Wicky
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
| | - Veronica Aedo-Lopez
- Department of Oncology, Monash Medical Centre, 823-865 Centre Road, East Bentleigh, Melbourne, VIC 3165, Australia
| | - Grégoire Berthod
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
- Service of Oncology, Valais Hospital (CHVR), Avenue Grand Champsec 80, 1951 Sion, Switzerland
| | - Krisztian Homicsko
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
| | - John O. Prior
- Department of Radiology, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011 Lausanne, Switzerland
| | - Clarisse Dromain
- Department of Radiology, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011 Lausanne, Switzerland
| | - Lana E. Kandalaft
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
| | - Michel A. Cuendet
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
- Department of Physiology and Biophysics, Weill Cornell Medicine, 1300 York Av., New York, NY 10065, USA
- Swiss Institute of Bioinformatics, UNIL Sorge, 1015 Lausanne, Switzerland
| | - Olivier Michielin
- Department of Oncology, Lausanne University Hospital and Agora Translational Cancer Research Center, Rue du Bugnon, 1011 Lausanne, Switzerland
- Swiss Institute of Bioinformatics, UNIL Sorge, 1015 Lausanne, Switzerland
- Correspondence: (B.G.M.); (O.M.)
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2
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Ghisoni E, Wicky A, Bouchaab H, Imbimbo M, Delyon J, Gautron Moura B, Gérard CL, Latifyan S, Özdemir BC, Caikovski M, Pradervand S, Tavazzi E, Gatta R, Marandino L, Valabrega G, Aglietta M, Obeid M, Homicsko K, Mederos Alfonso NN, Zimmermann S, Coukos G, Peters S, Cuendet MA, Di Maio M, Michielin O. Late-onset and long-lasting immune-related adverse events from immune checkpoint-inhibitors: An overlooked aspect in immunotherapy. Eur J Cancer 2021; 149:153-164. [PMID: 33865201 DOI: 10.1016/j.ejca.2021.03.010] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [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: 01/05/2021] [Revised: 03/09/2021] [Accepted: 03/13/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) have revolutionised cancer therapy but frequently cause immune-related adverse events (irAEs). Description of late-onset and duration of irAEs in the literature is often incomplete. METHODS To investigate reporting and incidence of late-onset and long-lasting irAEs, we reviewed all registration trials leading to ICI's approval by the US FDA and/or EMA up to December 2019. We analysed real-world data from all lung cancer (LC) and melanoma (Mel) patients treated with approved ICIs at the University Hospital of Lausanne (CHUV) from 2011 to 2019. To account for the immortal time bias, we used a time-dependent analysis to assess the potential association between irAEs and overall survival (OS). RESULTS Duration of irAEs and proportion of patients with ongoing toxicities at data cut-off were not specified in 56/62 (90%) publications of ICIs registration trials. In our real-world analysis, including 437 patients (217 LC, 220 Mel), 229 (52.4%) experienced at least one grade ≥2 toxicity, for a total of 318 reported irAEs, of which 112 (35.2%) were long-lasting (≥6 months) and about 40% were ongoing at a median follow-up of 369 days [194-695] or patient death. The cumulative probability of irAE onset from treatment initiation was 42.8%, 51.0% and 57.3% at 6, 12 and 24 months, respectively. The rate of ongoing toxicity from the time of first toxicity onset was 42.8%, 38.4% and 35.7% at 6, 12 and 24 months. Time-dependent analysis showed no significant association between the incidence of irAEs and OS in both cohorts (log Rank p = 0.67 and 0.19 for LC and Mel, respectively). CONCLUSIONS Late-onset and long-lasting irAEs are underreported but common events during ICIs therapy. Time-dependent survival analysis is advocated to assess their impact on OS. Real-world evidence is warranted to fully capture and characterise late-onset and long-lasting irAEs in order to implement appropriate strategies for patient surveillance and follow-up.
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Affiliation(s)
- E Ghisoni
- Department of Oncology, Lausanne University Hospital, Switzerland; Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - A Wicky
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - H Bouchaab
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - M Imbimbo
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - J Delyon
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - B Gautron Moura
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - C L Gérard
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - S Latifyan
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - B C Özdemir
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - M Caikovski
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - S Pradervand
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - E Tavazzi
- Department of Information Engineering, University of Padova, Italy
| | - R Gatta
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - L Marandino
- Department of Oncology, University of Torino, Italy
| | - G Valabrega
- Department of Oncology, University of Torino, Italy; Candiolo Cancer Institute, FPO, IRCCS, Candiolo (TO), Italy
| | - M Aglietta
- Department of Oncology, University of Torino, Italy; Candiolo Cancer Institute, FPO, IRCCS, Candiolo (TO), Italy
| | - M Obeid
- Service Immunologie et Allergie, Lausanne University Hospital, Switzerland
| | - K Homicsko
- Department of Oncology, Lausanne University Hospital, Switzerland; Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | | | - S Zimmermann
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - G Coukos
- Department of Oncology, Lausanne University Hospital, Switzerland; Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - S Peters
- Department of Oncology, Lausanne University Hospital, Switzerland
| | - M A Cuendet
- Department of Oncology, Lausanne University Hospital, Switzerland; Swiss Institute of Bioinformatics, Lausanne, Switzerland; Department of Physiology and Biophysics, Weill Cornell Medicine, New York, USA
| | - M Di Maio
- Department of Oncology, University of Torino, Italy; Medical Oncology, A.O. Ordine Mauriziano, Torino, Italy
| | - O Michielin
- Department of Oncology, Lausanne University Hospital, Switzerland; Ludwig Institute for Cancer Research, Lausanne, Switzerland.
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3
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Özdemir B, Charrier M, Gerard C, Wicky A, Caikovski M, Cuendet M, Olivier T, Tsantoulis P, Michielin O. 7P Comparison of the clinical utility of two different size next generation sequencing (NGS) gene panels for solid tumours. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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4
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Ataca D, Aouad P, Constantin C, Laszlo C, Beleut M, Shamseddin M, Rajaram RD, Jeitziner R, Mead TJ, Caikovski M, Bucher P, Ambrosini G, Apte SS, Brisken C. The secreted protease Adamts18 links hormone action to activation of the mammary stem cell niche. Nat Commun 2020; 11:1571. [PMID: 32218432 PMCID: PMC7099066 DOI: 10.1038/s41467-020-15357-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [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: 07/19/2019] [Accepted: 02/28/2020] [Indexed: 11/21/2022] Open
Abstract
Estrogens and progesterone control breast development and carcinogenesis via their cognate receptors expressed in a subset of luminal cells in the mammary epithelium. How they control the extracellular matrix, important to breast physiology and tumorigenesis, remains unclear. Here we report that both hormones induce the secreted protease Adamts18 in myoepithelial cells by controlling Wnt4 expression with consequent paracrine canonical Wnt signaling activation. Adamts18 is required for stem cell activation, has multiple binding partners in the basement membrane and interacts genetically with the basal membrane-specific proteoglycan, Col18a1, pointing to the basement membrane as part of the stem cell niche. In vitro, ADAMTS18 cleaves fibronectin; in vivo, Adamts18 deletion causes increased collagen deposition during puberty, which results in impaired Hippo signaling and reduced Fgfr2 expression both of which control stem cell function. Thus, Adamts18 links luminal hormone receptor signaling to basement membrane remodeling and stem cell activation. How hormonal signaling in the mammary epithelium controls the surrounding extracellular matrix is unclear. Here, the authors show that a secreted protease, Adamts18, induced by upstream estrogen-progesterone activated Wnt4 in myoepithelial cells, remodels the basement membrane and contributes to mammary epithelial stemness.
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Affiliation(s)
- Dalya Ataca
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Patrick Aouad
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Céline Constantin
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Csaba Laszlo
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Manfred Beleut
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland.,Medoderm GmbH, Robert Koch-Straße 50 D, 55129, Mainz, Germany
| | - Marie Shamseddin
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland.,Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK
| | - Renuga Devi Rajaram
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Rachel Jeitziner
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Agora Swiss Cancer Center Leman, Rue du Bugnon 25a, 1015, Lausanne, Switzerland
| | - Timothy J Mead
- Department of Biomedical Engineering-ND20, Cleveland Clinic Lerner Research Institute, 9500 Euclid Ave., Cleveland, OH, 44195, USA
| | - Marian Caikovski
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Agora Swiss Cancer Center Leman, Rue du Bugnon 25a, 1015, Lausanne, Switzerland
| | - Philipp Bucher
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Giovanna Ambrosini
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland
| | - Suneel S Apte
- Department of Biomedical Engineering-ND20, Cleveland Clinic Lerner Research Institute, 9500 Euclid Ave., Cleveland, OH, 44195, USA
| | - Cathrin Brisken
- Ecole Polytechnique Fédérale de Lausanne, Station 19, CH-1015, Lausanne, Switzerland.
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5
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Ataca D, Caikovski M, Piersigilli A, Moulin A, Benarafa C, Earp SE, Guri Y, Kostic C, Arsenijevic Y, Soininen R, Apte SS, Brisken C. Adamts18 deletion results in distinct developmental defects and provides a model for congenital disorders of lens, lung, and female reproductive tract development. Biol Open 2016; 5:1585-1594. [PMID: 27638769 PMCID: PMC5155532 DOI: 10.1242/bio.019711] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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] [Indexed: 11/20/2022] Open
Abstract
The ADAMTS family comprises 19 secreted metalloproteinases that cleave extracellular matrix components and have diverse functions in numerous disease and physiological contexts. A number of them remain 'orphan' proteases and among them is ADAMTS18, which has been implicated in developmental eye disorders, platelet function and various malignancies. To assess in vivo function of ADAMTS18, we generated a mouse strain with inactivated Adamts18 alleles. In the C57Bl6/Ola background, Adamts18-deficient mice are born in a normal Mendelian ratio, and are viable but show a transient growth delay. Histological examination revealed a 100% penetrant eye defect resulting from leakage of lens material through the lens capsule occurring at embryonic day (E)13.5, when the lens grows rapidly. Adamts18-deficient lungs showed altered bronchiolar branching. Fifty percent of mutant females are infertile because of vaginal obstruction due to either a dorsoventral vaginal septum or imperforate vagina. The incidence of ovarian rete is increased in the mutant mouse strain. Thus, Adamts18 is essential in the development of distinct tissues and the new mouse strain is likely to be useful for investigating ADAMTS18 function in human disease, particularly in the contexts of infertility and carcinogenesis.
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Affiliation(s)
- Dalya Ataca
- Ecole Polytechnique Fédérale de Lausanne, ISREC, NCCR Molecular Oncology, Station 19, Lausanne CH-1015, Switzerland
| | - Marian Caikovski
- Ecole Polytechnique Fédérale de Lausanne, ISREC, NCCR Molecular Oncology, Station 19, Lausanne CH-1015, Switzerland
| | - Alessandra Piersigilli
- Ecole Polytechnique Fédérale de Lausanne, ISREC, NCCR Molecular Oncology, Station 19, Lausanne CH-1015, Switzerland
| | - Alexandre Moulin
- Jules-Gonin Eye Hospital, University of Lausanne, Avenue de France 15, Lausanne CH-1004, Switzerland
| | - Charaf Benarafa
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, Bern CH-3012, Switzerland
| | - Sarah E Earp
- Biomedical Engineering-ND20, Cleveland Clinic Lerner Research Institute, 9500 Euclid Ave., Cleveland, OH 44195, USA
| | - Yakir Guri
- Ecole Polytechnique Fédérale de Lausanne, ISREC, NCCR Molecular Oncology, Station 19, Lausanne CH-1015, Switzerland.,Biozentrum, University of Basel, Basel CH-4056, Switzerland
| | - Corinne Kostic
- Jules-Gonin Eye Hospital, University of Lausanne, Avenue de France 15, Lausanne CH-1004, Switzerland
| | - Yvan Arsenijevic
- Jules-Gonin Eye Hospital, University of Lausanne, Avenue de France 15, Lausanne CH-1004, Switzerland
| | - Raija Soininen
- Department of Pathology, Biocenter Oulu, University of Oulu, Oulu FIN-90014, Finland
| | - Suneel S Apte
- Biomedical Engineering-ND20, Cleveland Clinic Lerner Research Institute, 9500 Euclid Ave., Cleveland, OH 44195, USA
| | - Cathrin Brisken
- Ecole Polytechnique Fédérale de Lausanne, ISREC, NCCR Molecular Oncology, Station 19, Lausanne CH-1015, Switzerland
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6
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Rajaram RD, Buric D, Caikovski M, Ayyanan A, Rougemont J, Shan J, Vainio SJ, Yalcin-Ozuysal O, Brisken C. Progesterone and Wnt4 control mammary stem cells via myoepithelial crosstalk. EMBO J 2015; 34:641-52. [PMID: 25603931 PMCID: PMC4365033 DOI: 10.15252/embj.201490434] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/21/2014] [Accepted: 12/23/2014] [Indexed: 12/22/2022] Open
Abstract
Ovarian hormones increase breast cancer risk by poorly understood mechanisms. We assess the role of progesterone on global stem cell function by serially transplanting mouse mammary epithelia. Progesterone receptor (PR) deletion severely reduces the regeneration capacity of the mammary epithelium. The PR target, receptor activator of Nf-κB ligand (RANKL), is not required for this function, and the deletion of Wnt4 reduces the mammary regeneration capacity even more than PR ablation. A fluorescent reporter reveals so far undetected perinatal Wnt4 expression that is independent of hormone signaling. Pubertal and adult Wnt4 expression is specific to PR+ luminal cells and requires intact PR signaling. Conditional deletion of Wnt4 reveals that this early, previously unappreciated, Wnt4 expression is functionally important. We provide genetic evidence that canonical Wnt signaling in the myoepithelium required PR and Wnt4, whereas the canonical Wnt signaling activities observed in the embryonic mammary bud and in the stroma around terminal end buds are independent of Wnt4. Thus, progesterone and Wnt4 control stem cell function through a luminal-myoepithelial crosstalk with Wnt4 acting independent of PR perinatally.
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Affiliation(s)
- Renuga Devi Rajaram
- Ecole Polytechnique Fédérale de Lausanne (EPFL) ISREC - Swiss Institute for Experimental Cancer Research, Lausanne, Switzerland
| | - Duje Buric
- Ecole Polytechnique Fédérale de Lausanne (EPFL) ISREC - Swiss Institute for Experimental Cancer Research, Lausanne, Switzerland
| | - Marian Caikovski
- Ecole Polytechnique Fédérale de Lausanne (EPFL) ISREC - Swiss Institute for Experimental Cancer Research, Lausanne, Switzerland
| | - Ayyakkannu Ayyanan
- Ecole Polytechnique Fédérale de Lausanne (EPFL) ISREC - Swiss Institute for Experimental Cancer Research, Lausanne, Switzerland
| | - Jacques Rougemont
- Swiss Institute of Bioinformatics Bioinformatics and Biostatistics Core Facility Ecole polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Jingdong Shan
- Faculty of Biochemisty and Molecular Medicine (FBMM), Biocenter Oulu and Infotech Oulu Oulu Center for Cell Matrix Research University of Oulu, Oulu, Finland
| | - Seppo J Vainio
- Faculty of Biochemisty and Molecular Medicine (FBMM), Biocenter Oulu and Infotech Oulu Oulu Center for Cell Matrix Research University of Oulu, Oulu, Finland
| | - Ozden Yalcin-Ozuysal
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Izmir, Turkey
| | - Cathrin Brisken
- Ecole Polytechnique Fédérale de Lausanne (EPFL) ISREC - Swiss Institute for Experimental Cancer Research, Lausanne, Switzerland
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7
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Dong J, Huang S, Caikovski M, Ji S, McGrath A, Custorio MG, Creighton CJ, Maliakkal P, Bogoslovskaia E, Du Z, Zhang X, Lewis MT, Sablitzky F, Brisken C, Li Y. ID4 regulates mammary gland development by suppressing p38MAPK activity. Development 2011; 138:5247-56. [PMID: 22069192 PMCID: PMC3210500 DOI: 10.1242/dev.069203] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [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] [Accepted: 10/03/2011] [Indexed: 12/15/2022]
Abstract
The ID family of helix-loop-helix proteins regulates cell proliferation and differentiation in many different developmental pathways, but the functions of ID4 in mammary development are unknown. We report that mouse Id4 is expressed in cap cells, basal cells and in a subset of luminal epithelial cells, and that its targeted deletion impairs ductal expansion and branching morphogenesis as well as cell proliferation induced by estrogen and/or progesterone. We discover that p38MAPK is activated in Id4-null mammary cells. p38MAPK is also activated following siRNA-mediated Id4 knockdown in transformed mammary cells. This p38MAPK activation is required for the reduced proliferation and increased apoptosis in Id4-ablated mammary glands. Therefore, ID4 promotes mammary gland development by suppressing p38MAPK activity.
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Affiliation(s)
- Jie Dong
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Shixia Huang
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Marian Caikovski
- NCCR Molecular Oncology, Ecole polytechnique fédérale de Lausanne (EPFL), ISREC-Swiss Institute for Experimental Cancer Research, CH-1066 Epalinges, Switzerland
| | | | - Amanda McGrath
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Myra G. Custorio
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Chad J. Creighton
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Paul Maliakkal
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Zhijun Du
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xiaomei Zhang
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Michael T. Lewis
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Fred Sablitzky
- Institute of Genetics, The University of Nottingham, Nottingham NG7 2UH, UK
| | - Cathrin Brisken
- NCCR Molecular Oncology, Ecole polytechnique fédérale de Lausanne (EPFL), ISREC-Swiss Institute for Experimental Cancer Research, CH-1066 Epalinges, Switzerland
| | - Yi Li
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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8
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Brisken C, Yalcin-Ozuysal O, Beleut M, Rajaram RD, Caikovski M, Ayyanan A, Fiche M, Guitierrez M, Raffoul W. S16 Breast stem cells and hormonal mechanisms in carcinogenesis. Breast 2011. [DOI: 10.1016/s0960-9776(11)70019-4] [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: 11/30/2022] Open
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9
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Caikovski M, Yokthongwattana C, Habu Y, Nishimura T, Mathieu O, Paszkowski J. Divergent evolution of CHD3 proteins resulted in MOM1 refining epigenetic control in vascular plants. PLoS Genet 2008; 4:e1000165. [PMID: 18725928 PMCID: PMC2507757 DOI: 10.1371/journal.pgen.1000165] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [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: 05/14/2008] [Accepted: 07/15/2008] [Indexed: 11/19/2022] Open
Abstract
Arabidopsis MOM1 is required for the heritable maintenance of transcriptional gene silencing (TGS). Unlike many other silencing factors, depletion of MOM1 evokes transcription at selected loci without major changes in DNA methylation or histone modification. These loci retain unusual, bivalent chromatin properties, intermediate to both euchromatin and heterochromatin. The structure of MOM1 previously suggested an integral nuclear membrane protein with chromatin-remodeling and actin-binding activities. Unexpected results presented here challenge these presumed MOM1 activities and demonstrate that less than 13% of MOM1 sequence is necessary and sufficient for TGS maintenance. This active sequence encompasses a novel Conserved MOM1 Motif 2 (CMM2). The high conservation suggests that CMM2 has been the subject of strong evolutionary pressure. The replacement of Arabidopsis CMM2 by a poplar motif reveals its functional conservation. Interspecies comparison suggests that MOM1 proteins emerged at the origin of vascular plants through neo-functionalization of the ubiquitous eukaryotic CHD3 chromatin remodeling factors. Interestingly, despite the divergent evolution of CHD3 and MOM1, we observed functional cooperation in epigenetic control involving unrelated protein motifs and thus probably diverse mechanisms.
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Affiliation(s)
- Marian Caikovski
- Laboratory of Plant Genetics, University of Geneva, Geneva, Switzerland
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10
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Mathieu O, Reinders J, Caikovski M, Smathajitt C, Paszkowski J. Transgenerational stability of the Arabidopsis epigenome is coordinated by CG methylation. Cell 2007; 130:851-62. [PMID: 17803908 DOI: 10.1016/j.cell.2007.07.007] [Citation(s) in RCA: 273] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2007] [Revised: 05/24/2007] [Accepted: 07/06/2007] [Indexed: 10/22/2022]
Abstract
Maintenance of CG methylation ((m)CG) patterns is essential for chromatin-mediated epigenetic regulation of transcription in plants and mammals. However, functional links between (m)CG and other epigenetic mechanisms in vivo remain obscure. Using successive generations of an Arabidopsis thaliana mutant deficient in maintaining (m)CG, we find that (m)CG loss triggers genome-wide activation of alternative epigenetic mechanisms. However, these mechanisms, which involve RNA-directed DNA methylation, inhibiting expression of DNA demethylases, and retargeting of histone H3K9 methylation, act in a stochastic and uncoordinated fashion. As a result, new and aberrant epigenetic patterns are progressively formed over several plant generations in the absence of (m)CG. Interestingly, the unconventional redistribution of epigenetic marks is necessary to "rescue" the loss of (m)CG, since mutant plants impaired in rescue activities are severely dwarfed and sterile. Our results provide evidence that (m)CG is a central coordinator of epigenetic memory that secures stable transgenerational inheritance in plants.
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Affiliation(s)
- Olivier Mathieu
- Laboratory of Plant Genetics, University of Geneva, Sciences III, 30 Quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland.
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