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Cottin V, Blanchard E, Kerjouan M, Lazor R, Reynaud-Gaubert M, Taille C, Uzunhan Y, Wemeau L, Andrejak C, Baud D, Bonniaud P, Brillet PY, Calender A, Chalabreysse L, Court-Fortune I, Desbaillets NP, Ferretti G, Guillemot A, Hardelin L, Kambouchner M, Leclerc V, Lederlin M, Malinge MC, Mancel A, Marchand-Adam S, Maury JM, Naccache JM, Nasser M, Nunes H, Pagnoux G, Prévot G, Rousset-Jablonski C, Rouviere O, Si-Mohamed S, Touraine R, Traclet J, Turquier S, Vagnarelli S, Ahmad K. French recommendations for the diagnosis and management of lymphangioleiomyomatosis. Respir Med Res 2023; 83:101010. [PMID: 37087906 DOI: 10.1016/j.resmer.2023.101010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/12/2023] [Accepted: 03/13/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND The present article is an English-language version of the French National Diagnostic and Care Protocol, a pragmatic tool to optimize and harmonize the diagnosis, care pathway, management and follow-up of lymphangioleiomyomatosis in France. METHODS Practical recommendations were developed in accordance with the method for developing a National Diagnosis and Care Protocol for rare diseases of the Haute Autorité de Santé and following international guidelines and literature on lymphangioleiomyomatosis. It was developed by a multidisciplinary group, with the help of patient representatives and of RespiFIL, the rare disease network on respiratory diseases. RESULTS Lymphangioleiomyomatosis is a rare lung disease characterised by a proliferation of smooth muscle cells that leads to the formation of multiple lung cysts. It occurs sporadically or as part of a genetic disease called tuberous sclerosis complex (TSC). The document addresses multiple aspects of the disease, to guide the clinicians regarding when to suspect a diagnosis of lymphangioleiomyomatosis, what to do in case of recurrent pneumothorax or angiomyolipomas, what investigations are needed to make the diagnosis of lymphangioleiomyomatosis, what the diagnostic criteria are for lymphangioleiomyomatosis, what the principles of management are, and how follow-up can be organised. Recommendations are made regarding the use of pharmaceutical specialties and treatment other than medications. CONCLUSION These recommendations are intended to guide the diagnosis and practical management of pulmonary lymphangioleiomyomatosis.
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Affiliation(s)
- Vincent Cottin
- Centre de Référence Coordinateur des maladies pulmonaires rares (OrphaLung), Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, ERN-LUNG, 69677 Lyon, France; UMR 754, INRAE, Université Claude Bernard Lyon 1, 8 avenue Rockefeller, 69008 Lyon, France.
| | - Elodie Blanchard
- Centre de Compétence des maladies pulmonaires rares (OrphaLung), GH Sud Haut-Lévêque, Avenue Magellan, 33600 Pessac, France
| | - Mallorie Kerjouan
- Centre de Compétence des maladies pulmonaires rares (OrphaLung), CHU Pontchailloux, 2 rue Henri le Guilloux, 35000 Rennes, France
| | - Romain Lazor
- Service de Pneumologie, Centre Hospitalier Universitaire Vaudois, BU44/07.2137, Rue du Bugnon 46, 1011 Lausanne, Suisse
| | - Martine Reynaud-Gaubert
- Centre de Compétence des maladies pulmonaires rares (OrphaLung), Hôpital Nord, Chemin Bourrely, 13015 Marseille, France; URMITE-CNRS-IRD UMR 6236, Aix-Marseille Université, 51 boulevard Pierre Dramard, 13344 Marseille cedex 15, France
| | - Camille Taille
- Centre de Référence Constitutif des maladies pulmonaires rares (OrphaLung), Hôpital Bichat, 46 rue Henri Huchard, 75018 Paris, France; Université Paris-Diderot, 17 rue Jean Antoine de Baïf, 75013 Paris, France
| | - Yurdagül Uzunhan
- Centre de Référence constitutif des maladies pulmonaires rares (OrphaLung), Hôpital Avicenne, 125 rue Stalingrad, 93000 Bobigny, France; Université Sorbonne Paris Nord, INSERM UMR 1272 "Hypoxie et Poumon", 1 rue Chablis, 93000 Bobigny, Paris, France
| | - Lidwine Wemeau
- Centre de Référence constitutif des maladies pulmonaires rares, CHRU, 5 rue Oscar Lambret, 59000 Lille, France
| | - Claire Andrejak
- Service de pneumologie, CHU Amiens, 1 Place Victor Pauchet, 80054 Amiens, France; UFR de médecine, 3 rue Louvels, 80000 Amiens, France
| | - Dany Baud
- Hôpital Suisse de Paris, 10 rue Minard, 92130 Issy les Moulineaux, France
| | - Philippe Bonniaud
- Centre de Référence constitutif des maladies pulmonaires rares, CHU de Dijon, BP 77908, 21079, Dijon, France; INSERM, LNC UMR1231, LipSTIC LabEx Team, 21000 Dijon, France
| | - Pierre-Yves Brillet
- Université Sorbonne Paris Nord, INSERM UMR 1272 "Hypoxie et Poumon", 1 rue Chablis, 93000 Bobigny, Paris, France; Service de radiologie, hôpital Avicenne, 125 rue Stalingrad, 93000 Bobigny, France
| | - Alain Calender
- Département de génétique, Hospices Civils de Lyon, 28 avenue Doyen Lepine, 69677 Lyon, France; IBCP, Université Claude Bernard Lyon 1, 8 avenue Rockefeller, 69008 Lyon, France
| | - Lara Chalabreysse
- Service de pathologie, Groupe hospitalier est, Hospices Civils de Lyon, 28 avenue Doyen Lepine, 69677 Lyon, France; Université Claude Bernard Lyon 1, 8 avenue Rockefeller, 69008 Lyon, France
| | | | | | - Gilbert Ferretti
- Pole imagerie, CHU Grenoble Alpes, Boulevard Chantourne, 38700 La Tronche, France
| | - Anne Guillemot
- Centre de Référence Coordinateur des maladies pulmonaires rares (OrphaLung), Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, ERN-LUNG, 69677 Lyon, France
| | - Laurane Hardelin
- Centre de Référence Coordinateur des maladies pulmonaires rares (OrphaLung), Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, ERN-LUNG, 69677 Lyon, France
| | - Marianne Kambouchner
- Service d'anatomopatholologie, Hôpital Avicenne, 125 rue Stalingrad, 93000 Bobigny, France
| | - Violette Leclerc
- Association France Lymphangioléiomyomatose, 4, Rue des Vieux-Moulins, 56 680 Plouhinec, France
| | - Mathieu Lederlin
- Service de radiologie, CHU Pontchailloux, 2 rue Henri le Guilloux, 35000 Rennes, France
| | | | - Alain Mancel
- Association France Lymphangioléiomyomatose, 4, Rue des Vieux-Moulins, 56 680 Plouhinec, France
| | - Sylvain Marchand-Adam
- Centre de Compétence des maladies pulmonaires rares (OrphaLung), Hôpital Bretonneau, CHRU Tours, 2 Boulevard Tonnellé, 37000 Tours, France; Université de Tours, CEPR INSERMU1100, 10 Boulevard Tonnellé, 37000 Tours, France
| | - Jean-Michel Maury
- Service de chirurgie thoracique, Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, 69677 Lyon, France
| | - Jean-Marc Naccache
- Service de pneumologie, Hôpital Saint Joseph, 185 rue Raymond Losserand, 75014 Paris, France
| | - Mouhamad Nasser
- Centre de Référence Coordinateur des maladies pulmonaires rares (OrphaLung), Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, ERN-LUNG, 69677 Lyon, France
| | - Hilario Nunes
- Centre de Référence constitutif des maladies pulmonaires rares (OrphaLung), Hôpital Avicenne, 125 rue Stalingrad, 93000 Bobigny, France; Université Sorbonne Paris Nord, INSERM UMR 1272 "Hypoxie et Poumon", 1 rue Chablis, 93000 Bobigny, Paris, France
| | - Gaële Pagnoux
- Service de radiologie, Hôpital Edouard Herriot, 5 place d'Arsonval, 69008 Lyon, France
| | - Grégoire Prévot
- Centre de Compétence des maladies pulmonaires rares (OrphaLung), service de pneumologie, hôpital Larrey, 24 chemin de Pouvourville, 31059 Toulouse cedex 9, France
| | | | - Olivier Rouviere
- Université Claude Bernard Lyon 1, 8 avenue Rockefeller, 69008 Lyon, France; Service de radiologie, Hôpital Edouard Herriot, 5 place d'Arsonval, 69008 Lyon, France
| | - Salim Si-Mohamed
- Université Claude Bernard Lyon 1, 8 avenue Rockefeller, 69008 Lyon, France; Service d'imagerie, Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, 69677 Lyon, France
| | - Renaud Touraine
- Laboratoire de Génétique Chromosomique et Moléculaire, CHU-Hôpital Nord, Laboratoire AURAGEN (Plan France Médecine Génomique 2025), 42270 Saint Priest en Jarest, France
| | - Julie Traclet
- Centre de Référence Coordinateur des maladies pulmonaires rares (OrphaLung), Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, ERN-LUNG, 69677 Lyon, France
| | - Ségolène Turquier
- Service d'exploration fonctionnelle respiratoire, Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, 69677 Lyon, France
| | - Stéphane Vagnarelli
- Centre de Référence constitutif des maladies pulmonaires rares (OrphaLung), Hôpital Avicenne, 125 rue Stalingrad, 93000 Bobigny, France
| | - Kaïs Ahmad
- Centre de Référence Coordinateur des maladies pulmonaires rares (OrphaLung), Hôpital Louis Pradel, Hospices Civils de Lyon, 28 avenue Doyen Lepine, ERN-LUNG, 69677 Lyon, France
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Esposito AJ, Imani J, Shrestha S, Bagwe S, Lamattina AM, Vivero M, Goldberg HJ, Rosas IO, Henske EP, El-Chemaly SY. Lymphangioleiomyomatosis: circulating levels of FGF23 and pulmonary diffusion. J Bras Pneumol 2023; 49:e20220356. [PMID: 37132737 PMCID: PMC10171272 DOI: 10.36416/1806-3756/e20220356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 02/19/2023] [Indexed: 04/05/2023] Open
Abstract
OBJECTIVE Lymphangioleiomyomatosis (LAM) is a rare, destructive disease of the lungs with a limited number of determinants of disease activity, which are a critical need for clinical trials. FGF23 has been implicated in several chronic pulmonary diseases. We aimed to determine the association between serum FGF23 levels and pulmonary function in a cohort of patients with LAM. METHODS This was a descriptive single-center study in which subjects with LAM and controls with unreported lung disease were recruited. Serum FGF23 levels were measured in all subjects. Clinical data, including pulmonary function testing, were retrospectively obtained from electronic medical records of LAM subjects. Associations between FGF23 levels and clinical features of LAM were explored via nonparametric hypothesis testing. RESULTS The sample comprised 37 subjects with LAM and 16 controls. FGF23 levels were higher in the LAM group than in the control group. In the LAM group, FGF23 levels above the optimal cutoff point distinguished 33% of the subjects who had nondiagnostic VEGF-D levels. Lower FGF23 levels were associated with impaired DLCO (p = 0.04), particularly for those with isolated diffusion impairment with no other spirometric abnormalities (p = 0.04). CONCLUSIONS Our results suggest that FGF23 is associated with pulmonary diffusion abnormalities in LAM patients and elicit novel mechanisms of LAM pathogenesis. FGF23 alone or in combination with other molecules needs to be validated as a biomarker of LAM activity in future clinical research.
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Affiliation(s)
- Anthony J Esposito
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Feinberg School of Medicine, Chicago (IL) USA
| | - Jewel Imani
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Shikshya Shrestha
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Shefali Bagwe
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Anthony M Lamattina
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Marina Vivero
- . Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Hilary J Goldberg
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Ivan O Rosas
- . Department of Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, Houston (TX) USA
| | - Elizabeth P Henske
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
| | - Souheil Y El-Chemaly
- . Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston (MA) USA
- . Sanofi, Cambridge (MA) USA
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McCarthy C, Gupta N, Johnson SR, Yu JJ, McCormack FX. Lymphangioleiomyomatosis: pathogenesis, clinical features, diagnosis, and management. THE LANCET. RESPIRATORY MEDICINE 2021; 9:1313-1327. [PMID: 34461049 DOI: 10.1016/s2213-2600(21)00228-9] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 05/02/2021] [Accepted: 05/07/2021] [Indexed: 01/15/2023]
Abstract
Lymphangioleiomyomatosis (LAM) is a slowly progressive, low-grade, metastasising neoplasm of women, characterised by infiltration of the lung parenchyma with abnormal smooth muscle-like cells, resulting in cystic lung destruction. The invading cell in LAM arises from an unknown source and harbours mutations in tuberous sclerosis complex (TSC) genes that result in constitutive activation of the mechanistic target of rapamycin (mTOR) pathway, dysregulated cellular proliferation, and a programme of frustrated lymphangiogenesis, culminating in disordered lung remodelling and respiratory failure. Over the past two decades, all facets of LAM basic and clinical science have seen important advances, including improved understanding of molecular mechanisms, novel diagnostic and prognostic biomarkers, effective treatment strategies, and comprehensive clinical practice guidelines. Further research is needed to better understand the natural history of LAM; develop more powerful diagnostic, prognostic, and predictive biomarkers; optimise the use of inhibitors of mTOR complex 1 in the treatment of LAM; and explore novel approaches to the development of remission-inducing therapies.
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Affiliation(s)
- Cormac McCarthy
- Department of Respiratory Medicine, St Vincent's University Hospital, University College Dublin, Dublin, Ireland.
| | - Nishant Gupta
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Simon R Johnson
- Division of Respiratory Medicine, University of Nottingham, NIHR Respiratory Biomedical Research Centre, Nottingham, UK
| | - Jane J Yu
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Francis X McCormack
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Cincinnati, Cincinnati, OH, USA
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Daccord C, Nicod L, Lazor R. Cystic Lung Disease in Genetic Syndromes with Deficient Tumor Suppressor Gene Function. Respiration 2017; 94:467-485. [DOI: 10.1159/000485106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 12/28/2022] Open
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Osteoprotegerin contributes to the metastatic potential of cells with a dysfunctional TSC2 tumor-suppressor gene. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 183:938-50. [PMID: 23867796 DOI: 10.1016/j.ajpath.2013.05.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 04/29/2013] [Accepted: 05/28/2013] [Indexed: 01/15/2023]
Abstract
In addition to its effects on bone metabolism, osteoprotegerin (OPG), a soluble member of the tumor necrosis factor family of receptors, promotes smooth muscle cell proliferation and migration and may act as a survival factor for tumor cells. We hypothesized that these cellular mechanisms of OPG may be involved in the growth and proliferation of lymphangioleiomyomatosis (LAM) cells, abnormal smooth muscle-like cells with mutations in one of the tuberous sclerosis complex tumor-suppressor genes (TSC1/TSC2) that cause LAM, a multisystem disease characterized by cystic lung destruction, lymphatic infiltration, and abdominal tumors. Herein, we show that OPG stimulated proliferation of cells cultured from explanted LAM lungs, and selectively induced migration of LAM cells identified by the loss of heterozygosity for TSC2. Consistent with these observations, cells with TSC2 loss of heterozygosity expressed the OPG receptors, receptor activator of NF-κB ligand, syndecan-1, and syndecan-2. LAM lung nodules showed reactivities to antibodies to tumor necrosis factor-related apoptosis-inducing ligand, receptor activator of NF-κB ligand, syndecan-1, and syndecan-2. LAM lung nodules also produced OPG, as shown by expression of OPG mRNA and colocalization of reactivities to anti-OPG and anti-gp100 (HMB45) antibodies in LAM lung nodules. Serum OPG was significantly higher in LAM patients than in normal volunteers. Based on these data, it appears that OPG may have tumor-promoting roles in the pathogenesis of lymphangioleiomyomatosis, perhaps acting as both autocrine and paracrine factors.
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Harari S, Torre O, Moss J. Lymphangioleiomyomatosis: what do we know and what are we looking for? Eur Respir Rev 2011; 20:34-44. [PMID: 21357890 PMCID: PMC3386525 DOI: 10.1183/09059180.00011010] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Lymphangioleiomyomatosis (LAM) is a rare disease characterised by proliferation of abnormal smooth muscle-like cells (LAM cells) leading to progressive cystic destruction of the lung, lymphatic abnormalities and abdominal tumours. It affects predominantly females and can occur sporadically or in patients with tuberous sclerosis complex. This review describes the recent progress in our understanding of the molecular pathogenesis of the disease and LAM cell biology. It also summarises current therapeutic approaches and the most promising areas of research for future therapeutic strategies.
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Affiliation(s)
- S. Harari
- Unità Operativa di Pneumologia e Terapia Semi-Intensiva Respiratoria – Servizio di Fisiopatologia Respiratoria ed Emodinamica Polmonare Ospedale San Giuseppe, Milan, Italy. Translational Medicine Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA.,S. Harari, Unità di Pneumologia e Terapia Semi-Intensiva Respiratoria, Ospedale San Giuseppe, via San Vittore 12, 20123 Milan, Italy. E-mail:
| | - O. Torre
- Unità Operativa di Pneumologia e Terapia Semi-Intensiva Respiratoria – Servizio di Fisiopatologia Respiratoria ed Emodinamica Polmonare Ospedale San Giuseppe, Milan, Italy. Translational Medicine Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - J. Moss
- Unità Operativa di Pneumologia e Terapia Semi-Intensiva Respiratoria – Servizio di Fisiopatologia Respiratoria ed Emodinamica Polmonare Ospedale San Giuseppe, Milan, Italy. Translational Medicine Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
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Abstract
Vitamin D deficiency is increasingly being recognized as a prevalent problem in the general population. Patients with chronic lung diseases such as asthma, cystic fibrosis, chronic obstructive lung disease and interstitial pneumonia appear to be at increased risk for vitamin D deficiency for reasons that are not clear. Several studies indicate that vitamin D possesses a range of anti-inflammatory properties and may be involved in processes other than the previously believed functions of calcium and phosphate homeostasis. Various cytokines, cellular elements, oxidative stress and protease/antiprotease levels appear to affect lung fibroproliferation, remodelling and function, which may be influenced by vitamin D levels. Chronic lung diseases such as asthma and chronic obstructive lung disease have also been linked to vitamin D on a genetic basis. This immune and genetic influence of vitamin D may influence the pathogenesis of chronic lung diseases. A recent observational study notes a significant association between vitamin D deficiency and decreased pulmonary function tests in a large ambulatory population. The present review will examine the current literature regarding vitamin D deficiency, its prevalence in patients with chronic lung disease, vitamin D anti-inflammatory properties and the role of vitamin D in pulmonary function.
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Abstract
Lymphangioleiomyomatosis is a rare pulmonary disease encountered almost exclusively in women of reproductive age. Pulmonary involvement is characterized by multiple thin-walled cysts in the lungs, recurrent pneumothorax, obstructive lung disorders, and progression to chronic respiratory failure over a mean period of 10 years. Certainty of diagnosis requires a lung biopsy, but international criteria have been proposed for a diagnosis without such a biopsy. International recommendations were recently issued for the diagnosis and treatment of lymphangioleiomyomatosis. Treatment is principally symptomatic and relies on the management of bronchial obstruction by bronchodilators; of hypoxemia by oxygen therapy; of pleural complications by pleurodesis, most often surgical; and of renal angiomyolipomas by percutaneous embolization in cases of hemorrhagic risk. Hormone treatment is not recommended. Hopes are high for mTor inhibitors (sirolimus and everolimus) and treatment trials are currently underway. Lung transplantation must be considered when chronic respiratory failure occurs in patients younger than 60 years.
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Chilosi M, Pea M, Martignoni G, Brunelli M, Gobbo S, Poletti V, Bonetti F. Cathepsin-k expression in pulmonary lymphangioleiomyomatosis. Mod Pathol 2009; 22:161-6. [PMID: 19060845 DOI: 10.1038/modpathol.2008.189] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lymphangioleiomyomatosis is a rare and progressive lung cystic disease, caused by the infiltration of lung parenchyma by mesenchymal cells characterized by co-expression of contractile proteins and melanocytic markers. The pathogenesis of lymphangioleiomyomatosis is determined by mutations affecting tuberous sclerosis complex (TSC) genes, with eventual deregulation of the Rheb/mTOR/p70S6K pathway, and the potential therapeutic activity of mTOR inhibitors is currently under investigation. To better understand the molecular mechanisms involved in the pathogenesis of lymphangioleiomyomatosis, we investigated the expression of cathepsin-k (a papain-like cysteine protease with high matrix-degrading activity). The rationale of this choice was based on the recent demonstration that mTOR inhibitors can regulate major functional activities of osteoclasts, including the expression of cathepsin-k. The immunohistochemical study included 12 cases of lymphangioleiomyomatosis. Twelve angiomyolipomas and several lung diseases (sarcoidosis, organizing pneumonia, usual interstitial pneumonia, emphysema) were investigated as controls. In all lymphangioleiomyomatosis cases, strong cathepsin-k immunoreactivity was demonstrated, restricted to lymphangioleiomyomatosis cells. Similar expression levels were observed in renal angiomyolipomas. These observations extend the knowledge regarding the immunophenotypic profile of lymphangioleiomyomatosis cells, and provide a useful new marker for diagnosis in difficult cases (eg, in small transbronchial biopsies). The strong expression of such a potent papain-like cysteine protease in lymphangioleiomyomatosis cells can significantly contribute to the progressive remodelling of lung parenchyma observed in this deadly disease, with eventual formation of lung cysts. It is possible to speculate that mTOR inhibitors may exert part of their action by limiting the destructive remodelling of lung structure.
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Affiliation(s)
- Marco Chilosi
- Department of Pathology, University of Verona, Verona, Italy.
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Chorianopoulos D, Stratakos G. Lymphangioleiomyomatosis and tuberous sclerosis complex. Lung 2008; 186:197-207. [PMID: 18408969 DOI: 10.1007/s00408-008-9087-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Accepted: 03/13/2008] [Indexed: 02/05/2023]
Abstract
Lymphangioleiomyomatosis (LAM) is a rare multisystemic disease of women of child-bearing age and affects mainly the lungs, promoting cystic destruction of lung parenchyma or leading to abdominal tumor formation (e.g., angiomyolipomas, lymphangioleiomyomas). LAM can arise sporadically or in association with tuberous sclerosis complex (TSC), an autosomal inherited syndrome characterized by hamartoma-like tumor growth and pathologic features that are distinct from manifestations of pulmonary LAM. A substantial body of evidence has now been gathered suggesting that the two diseases share a common genetic origin. TSC is caused by mutations in two genes, TSC1 on chromosome 9q34 and TSC2 on 16p13. Both of these genes are tumor suppressor genes encoding hamartin (TSC1) and tuberin (TSC2). Sporadic LAM is correlated with a mutation in the TSC2 gene and tuberin appears to play a central role in the pathogenesis of the disease. A TSC2 loss or mutation leads to disruption of the tuberin-hamartin heteromer and dysregulation of S6K1 activation leading to aberrant cell proliferation seen in LAM disease. The extremely diverse clinical and radiologic features of the disease and the complex therapeutic approach are reviewed in detail. Although new therapeutic agents have been tested, to date no effective treatment has been proposed and the prognosis of patients with LAM remains poor. As long as newer therapeutic agents do not change this picture, lung transplantation remains the last hope for patients with respiratory failure at the advanced stage of the disease.
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Affiliation(s)
- Dimitrios Chorianopoulos
- 1st Department of Respiratory Medicine, University of Athens Medical School, "Sotiria" General Hospital, Athens, Greece. .,5th Department of Internal Medicine, "Evaggelismos" Hospital, Athens, Greece. .,, 23rd November str., Ilion, Athens, 13121, Greece.
| | - Grigoris Stratakos
- Critical Care and Pulmonary Services Unit, University of Athens Medical School, "Evaggelismos" Hospital, Athens, Greece
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Harari S, Cassandro R, Chiodini I, Chiodini J, Taveira-DaSilva AM, Moss J. Effect of a gonadotrophin-releasing hormone analogue on lung function in lymphangioleiomyomatosis. Chest 2007; 133:448-54. [PMID: 18071009 DOI: 10.1378/chest.07-2277] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Lymphangioleiomyomatosis (LAM), a multisystem disease occurring primarily in women, is characterized by cystic lung destruction, and kidney and lymphatic tumors, caused by the proliferation of abnormal-appearing cells (ie, LAM cells) with a smooth muscle cell phenotype that express melanoma antigens and are capable of metastasizing. Estrogen receptors are present in LAM cells, and this finding, along with reports of disease progression during pregnancy or following exogenous estrogen administration, suggest the involvement of estrogens in the pathogenesis of LAM. Consequently, antiestrogen therapies have been employed in treatment. The goal of this prospective study was to evaluate the efficacy of triptorelin, a gonadotrophin-releasing hormone analogue, in 11 premenopausal women with LAM. METHODS Patients were evaluated at baseline and every 3 to 6 months thereafter, for a total of 36 months. Hormonal assays, pulmonary function tests, 6-min walk tests, high-resolution CT scans of the chest, and bone mineral density studies were performed. RESULTS Gonadal suppression was achieved in all patients. Overall, a significant decline in lung function was observed; two patients underwent lung transplantation 1 year after study enrollment, and another patient was lost to follow-up. Treatment with triptorelin was associated with a decline in bone mineral density. CONCLUSIONS Triptorelin appears not to prevent a decline in lung function in patients with LAM. Its use, however, may be associated with the loss of bone mineral density.
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Affiliation(s)
- Sergio Harari
- Unità di Pneumologia e Terapia Semi-Intensiva Respiratoria, Ospedale San Giuseppe AFAR, Milan, Italy
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Abstract
INTRODUCTION Pulmonary lymphangioleiomyomatosis (LAM) is a rare disease affecting young women and presenting with recurrent pneumothorax. BACKGROUND Other lesions such as chylothorax or renal angiomyolipoma may suggest the diagnosis. The condition is related to a proliferation of abnormal smooth muscle cells staining for the monoclonal antibody HMB45. LAM can appear sporadically or be associated with tuberous sclerosis with abnormalities of the TSC2 suppressor gene. High resolution thoracic CT scanning shows bilateral, thin walled pulmonary cysts. Pulmonary function tests reveal bronchial obstruction and over-inflation with a reduced DLCO being the earliest abnormality. VIEWPOINT Although there are non-progressive forms, LAM usually leads to chronic respiratory insufficiency within a few, or ten or so years. In the absence of a controlled clinical trial hormone therapy has not been shown to be effective. Lung transplantation is the last therapeutic resort; recurrences in the transplanted lung have been occasionally reported. CONCLUSIONS Analysis of the molecular mechanisms induced by mutations of the TSC2 suppressor gene and the demonstration of the migratory properties of smooth muscle cells, whose origin may be extra-thoracic, reveal new specific antiproliferative therapeutic options.
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Affiliation(s)
- T Urban
- Pôle Thorax Vaisseaux, CHU Angers, France.
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14
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Martinez FJ, Keane MP. Update in diffuse parenchymal lung diseases 2005. Am J Respir Crit Care Med 2006; 173:1066-71. [PMID: 16679445 DOI: 10.1164/rccm.2601011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
MESH Headings
- Adult
- Age Factors
- Alveolitis, Extrinsic Allergic/diagnosis
- Alveolitis, Extrinsic Allergic/epidemiology
- Alveolitis, Extrinsic Allergic/therapy
- Biomarkers/blood
- Biopsy, Needle
- Child
- Child, Preschool
- Disease Progression
- Female
- Humans
- Immunohistochemistry
- Lung Diseases, Interstitial/diagnosis
- Lung Diseases, Interstitial/epidemiology
- Lung Diseases, Interstitial/therapy
- Macrophages, Alveolar/cytology
- Male
- Middle Aged
- Oxidative Stress/physiology
- Prognosis
- Pulmonary Fibrosis/diagnosis
- Pulmonary Fibrosis/epidemiology
- Pulmonary Fibrosis/therapy
- Respiratory Function Tests
- Risk Assessment
- Sarcoidosis, Pulmonary/diagnosis
- Sarcoidosis, Pulmonary/epidemiology
- Sarcoidosis, Pulmonary/therapy
- Severity of Illness Index
- Survival Analysis
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Affiliation(s)
- Fernando J Martinez
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, MI 48109-0360, USA.
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15
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Tattersfield AE, Glassberg MK. Lymphangioleiomyomatosis: a national registry for a rare disease. Am J Respir Crit Care Med 2006; 173:2-4. [PMID: 16368790 DOI: 10.1164/rccm.2509010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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16
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Caplan-Shaw CE, Arcasoy SM, Shane E, Lederer DJ, Wilt JS, O'Shea MK, Addesso V, Sonett JR, Kawut SM. Osteoporosis in diffuse parenchymal lung disease. Chest 2006; 129:140-6. [PMID: 16424424 DOI: 10.1378/chest.129.1.140] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
STUDY OBJECTIVES There are no studies focused on skeletal status in patients with diffuse parenchymal lung disease (DPLD). We hypothesized that patients with DPLD referred for lung transplantation would have a high prevalence of osteoporosis related to corticosteroid use or reduced pulmonary function and exercise capacity. DESIGN Retrospective cohort study. SETTING Tertiary care center. PATIENTS Eighty-six patients with DPLD referred to our center for lung transplantation evaluation between March 1999 and April 2004. MEASUREMENTS AND RESULTS Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) at the lumbar spine, femoral neck, total hip, and radius at the time of referral. Criteria developed by the World Health Organization were used to define osteopenia and osteoporosis. Fifty-five patients (64%) had usual interstitial pneumonia-pattern lung disease, 14 patients (16%) had nonspecific interstitial pneumonia-pattern lung disease, and 17 patients (20%) had other forms of DPLD. Sixty-four patients (74%) were receiving corticosteroids, and 43 patients (50%) were receiving preventive therapy for osteoporosis. Eleven patients (13%; 95% confidence interval [CI], 7 to 22%) met criteria for osteoporosis at any site, and 49 patients (57%; 95% CI, 46 to 68%) had osteopenia. Lower body mass index (BMI) [adjusted odds ratio (OR), 1.3; 95% CI, 1.1 to 1.6; p = 0.007] and Hispanic ethnicity (adjusted OR, 9.7; 95% CI, 1.8 to 52; p = 0.008) were independently associated with an increased risk of osteoporosis. Linear regression analysis confirmed that BMD at the femoral neck and hip was directly associated with BMI (p < 0.002). These findings were not affected by adjustment for the use of corticosteroids or osteoporosis prophylaxis, pulmonary function, or exercise performance. CONCLUSIONS Reduced BMD was common in patients with DPLD who were referred for lung transplantation. Lower BMD was associated with lower BMI, whereas there was no association with other clinical factors in our cohort. Hispanic patients with DPLD had a higher risk of osteoporosis than non-Hispanic patients, independent of other variables. Given their increased risk of bone loss, patients with DPLD should undergo screening for osteoporosis and receive prophylaxis and treatment according to published guidelines.
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Affiliation(s)
- Caralee E Caplan-Shaw
- Department of Medicine, Columbia University College of Physicians and Surgeons, Mount Sinai School of Medicine, New York, NY 10032, USA
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