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Jin L, Cai K, Wu W, Xiao Y, Qiao N, Liu F, Ru S, Cao L, Zhu H, Bai J, Liu C, Li C, Zhao P, Zhang Y, Gui S. Correlations between the expression of molecules in the TGF-β signaling pathway and clinical factors in adamantinomatous craniopharyngiomas. Front Endocrinol (Lausanne) 2023; 14:1167776. [PMID: 37854185 PMCID: PMC10579895 DOI: 10.3389/fendo.2023.1167776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/31/2023] [Indexed: 10/20/2023] Open
Abstract
Objective To investigate the clinical and pathological factors associated with preoperative hypothalamus invasion and postoperative outcomes of adamantinomatous craniopharyngiomas (ACPs) after the expanded endonasal approach (EEA) resection. Methods Ninety-three specimens of ACPs, consisting of 71 primary and 22 recurrent tumors, were investigated for the expression of TGF-β1, SMAD2, SMAD3, and β-catenin by immunohistochemistry staining. The clinical information of relevant patients, including the extent of resection, hypothalamus invasion, endocrinopathy, complications, and prognosis, was reviewed. The relationships between the expression of these immunopathological markers and clinical factors were analyzed. Results Endocrinological dysfunctions were more common in recurrent patients and primary patients with hypothalamus invasion in the comparisons. For recurrent patients, the rate of gross total resection (GTR) was significantly lower than for primary patients (63.6% vs. 90.1%, P = 0.007). According to radiological and intraoperative findings, invasive ACPs (IACPs) included 48 (67.6%) cases in primary tumors. The expression of TGF-β1 and β-catenin was significantly higher in recurrent tumors (P = 0.021 and P = 0.018, respectively) and IACPs (P = 0.008 and P = 0.004, respectively). The expression level of TGF-β1 was associated with hypothalamus involvement (Puget grade, P = 0.05; Vile grade, P = 0.002), postoperative endocrinopathy (P = 0.01), and pituitary stalk preservation (P = 0.008) in primary patients. In addition, the extent of resection, treatment history, hypothalamic invasion, and level of TGF-β1 expression had significant influences on tumor recurrence/progression after surgery separately. Conclusion Our study demonstrated the potential role of TGF-β1 in the regulation of hypothalamus invasion in ACPs and the prediction of prognosis after EEA surgery. The TGF-β signaling pathway may represent a crucial mechanism in the aggressive behavior and progression of ACPs.
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Affiliation(s)
- Lu Jin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Kefan Cai
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - WenTao Wu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Youchao Xiao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ning Qiao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Fangzheng Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Siming Ru
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Lei Cao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Haibo Zhu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jiwei Bai
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Chunhui Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Chuzhong Li
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Peng Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yazhuo Zhang
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Songbai Gui
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Chen C, Zhang T, Teng Y, Yu Y, Shu X, Zhang L, Zhao F, Xu J. Automated segmentation of craniopharyngioma on MR images using U-Net-based deep convolutional neural network. Eur Radiol 2023; 33:2665-2675. [PMID: 36396792 PMCID: PMC10017618 DOI: 10.1007/s00330-022-09216-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To develop a U-Net-based deep learning model for automated segmentation of craniopharyngioma. METHODS A total number of 264 patients diagnosed with craniopharyngiomas were included in this research. Pre-treatment MRIs were collected, annotated, and used as ground truth to learn and evaluate the deep learning model. Thirty-eight patients from another institution were used for independently external testing. The proposed segmentation model was constructed based on a U-Net architecture. Dice similarity coefficients (DSCs), Hausdorff distance of 95% percentile (95HD), Jaccard value, true positive rate (TPR), and false positive rate (FPR) of each case were calculated. One-way ANOVA analysis was used to investigate if the model performance was associated with the radiological characteristics of tumors. RESULTS The proposed model showed a good performance in segmentation with average DSCs of 0.840, Jaccard of 0.734, TPR of 0.820, FPR of 0.000, and 95HD of 3.669 mm. It performed feasibly in the independent external test set, with average DSCs of 0.816, Jaccard of 0.704, TPR of 0.765, FPR of 0.000, and 95HD of 4.201 mm. Also, one-way ANOVA suggested the performance was not statistically associated with radiological characteristics, including predominantly composition (p = 0.370), lobulated shape (p = 0.353), compressed or enclosed ICA (p = 0.809), and cavernous sinus invasion (p = 0.283). CONCLUSIONS The proposed deep learning model shows promising results for the automated segmentation of craniopharyngioma. KEY POINTS • The segmentation model based on U-Net showed good performance in segmentation of craniopharyngioma. • The proposed model showed good performance regardless of the radiological characteristics of craniopharyngioma. • The model achieved feasibility in the independent external dataset obtained from another center.
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Affiliation(s)
- Chaoyue Chen
- Department of Neurosurgery, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China.,Department of Radiology, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China
| | - Ting Zhang
- Department of Neurosurgery, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China.,Department of Radiology, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China
| | - Yuen Teng
- Department of Neurosurgery, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China.,Department of Radiology, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China
| | - Yijie Yu
- College of Computer Science, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Xin Shu
- College of Computer Science, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Lei Zhang
- College of Computer Science, Sichuan University, Chengdu, 610065, People's Republic of China. .,College of Computer Science, Sichuan University, Chengdu, 610041, People's Republic of China.
| | - Fumin Zhao
- Radiology Department, West China Second University Hospital, Sichuan University, No. 20, section 3, Renmin South Road, Wuhou District, Chengdu, 610041, People's Republic of China.
| | - Jianguo Xu
- Department of Neurosurgery, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China. .,Department of Radiology, Sichuan University, West China Hospital, No. 37, GuoXue Alley, Chengdu, 610041, People's Republic of China.
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Radiomic Analysis of Craniopharyngioma and Meningioma in the Sellar/Parasellar Area with MR Images Features and Texture Features: A Feasible Study. CONTRAST MEDIA & MOLECULAR IMAGING 2020; 2020:4837156. [PMID: 32158365 PMCID: PMC7049426 DOI: 10.1155/2020/4837156] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/08/2020] [Accepted: 01/20/2020] [Indexed: 02/05/2023]
Abstract
Purpose To investigate the ability of qualitative Magnetic Resonance (MR) images features and quantitative Magnetic Resonance Imaging (MRI) texture features in the contrastive analysis between craniopharyngioma and meningioma. Method A total number of 127 patients were included in this study (craniopharyngioma = 63; meningioma = 64). All the features analyzed in this study were acquired from preoperative MRI images. Qualitative MR images features were evaluated with chi-square tests or Fisher exact test, while MRI texture features were evaluated with the Mann-Whitney U test with the Benjamini-Hochberg method. Then binary logistic regression analysis for texture features was performed to evaluate their ability as independent predictors, and the diagnostic accuracy was calculated next for these texture features with high abilities as independent predictors using receiver operating characteristic (ROC) curves. Results Four qualitative MR images features showed significant difference between craniopharyngioma and meningioma, but only cystic alteration could be considered as diagnostic independent predictors. Meanwhile, three quantitative parameters, histogram-based matrix- (HISTO-) Skewness, Grey-level co-occurrence matrix- (GLCM-) Contrast on contrast-enhanced images, and HISTO-Skewness on images of T2-weighted imaging (T2WI), showed promising abilities in the contrastive analysis. Besides, these texture features were found significantly to be relative to cystic alteration. Conclusion MR images features and texture features were useful in the contrastive analysis of craniopharyngioma and meningioma. Furthermore, qualitative MR images features and MRI texture features could be related to each other.
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Müller HL. The Diagnosis and Treatment of Craniopharyngioma. Neuroendocrinology 2020; 110:753-766. [PMID: 31678973 DOI: 10.1159/000504512] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/02/2019] [Indexed: 11/19/2022]
Abstract
Craniopharyngioma (CP) is a rare embryonic malformation of the sellar/parasellar region with a low histological grade. Clinical manifestations are related to hypothalamic/pituitary deficiencies, visual impairment, and increased intracranial pressure. Recent insight into the molecular pathogenesis of CP opens new perspectives on targeted therapy in papillary CP harboring BRAF-V600E mutations. Further research to elucidate pathogenic mechanisms and hopefully prevent hypothalamic involvement of CP is warranted. If the tumor is favorably localized, the therapy of choice is complete resection, with care taken to preserve the optical and hypothalamic functions. In patients with unfavorable tumor localization (i.e., hypothalamic involvement), the recommended therapy is a limited hypothalamus-sparing surgical strategy followed by local irradiation. Surgical treatment strategies should be based on a multidisciplinary approach involving experienced teams. Centralizing the treatment of CP in experienced "centers of excellence" and multicenter-based networks for reference assessments should be considered to assure a high standard of treatment quality. CP recurrence and progression are frequent. Irradiation has proven effective in reducing recurrences and progression. Proton beam therapy, available in a wider range in the near future, will help to avoid radio-oncological side effects. Anatomical involvement and/or surgical lesions of posterior hypothalamic areas can result in serious sequelae that compromise quality of life (QoL), such as hypothalamic obesity and psychopathological symptoms. Novel insights into neuropsychological sequelae after CP occurrence should be the basis for the development of therapeutic neuropsychological interventions. CP should be managed as a frequently chronic disease, providing ongoing care of pediatric and adult patients' clinical and QoL consequences by experienced multidisciplinary teams.
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Affiliation(s)
- Hermann L Müller
- Department of Pediatrics and Pediatric Hematology/Oncology, University Children's Hospital, Klinikum Oldenburg AöR, Oldenburg, Germany,
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Mourad F, Cataldi F, Patuzzo A, Tunnera S, Dunning J, Fernández-de-Las-Peñas C, Maselli F. Craniopharyngioma in a young woman with symptoms presenting as mechanical neck pain associated with cervicogenic headache: a case report. Physiother Theory Pract 2019; 37:549-558. [PMID: 31271335 DOI: 10.1080/09593985.2019.1636433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Craniopharyngioma is benign neoplasm thought to be caused by mal-development, which occurs in both children and adults in the sellar and suprasellar regions of the brain. Typical manifestations in adults are visual and endocrine system symptoms followed by signs and symptoms of increased intracranial pressure (i.e., headache). The management of this rare condition is complex and requires life-long surveillance by a multidisciplinary team of health-care professionals.Objective: To present a rare clinical presentation of craniopharyngioma mimicking nonspecific neck pain usually associated with cervicogenic headache recognized by a physiotherapist in a direct access setting as a condition requiring medical referral.Case Presentation: This case report describes the history, examination findings, and clinical reasoning used in the initial examination of a 33-year-old female with neck pain and cervicogenic headache as chief complaints. Several key indicators in the patient presentation warranted further and urgent investigation: 1) the recent onset of a "new-type" headache; 2) the phenotype headaches change; 3) the rapid progression of the symptoms; 4) the presence of associated neurological signs and symptoms; and 5) the worsening of the symptoms during Valsalva-like activities. The decision was made to refer the patient for further evaluation. An MRI revealed a craniopharyngioma. After a surgical removal of the tumor mass, the patient participated in a rehabilitation program and reached a full recovery after 6 months.Conclusion: This case report highlights the need of more research regarding red flags and warning signs during examination of in the head-neck region, and the central role of primary care clinicians such as physiotherapists in differential diagnosis of life-threatening conditions.
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Affiliation(s)
- Firas Mourad
- Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.,Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.,American Academy of Manipulative Therapy Fellowship in Orthopaedic Manual Physical Therapy, Montgomery, AL, USA.,Poliambulatorio Physio Power, Brescia, Italy.,Facoltà di Medicina e Chirurgia, Università degli Studi di Tor Vergata, Roma, Italy.,Facoltà di Medicna e Chirurgia, Dipartimento di Scienze Cliniche e Sperimentali, Università degli studi di Brescia, Brescia, Italy
| | - Fabio Cataldi
- Facoltà di Medicina e Chirurgia, Università degli Studi di Tor Vergata, Roma, Italy.,MTLab Physiotherapy, Bari, Italy
| | - Alberto Patuzzo
- Facoltà di Medicina e Chirurgia, Università degli Studi di Tor Vergata, Roma, Italy.,Agorà Medical, Verona, Italy.,Scuola di Medicina e Chirurgia, Dipartimento di Fisioterapia e Riabilitazione, Università degli studi di Verona, Verona, Italy
| | - Sara Tunnera
- Facoltà di Medicina e Chirurgia, Università degli Studi di Tor Vergata, Roma, Italy
| | - James Dunning
- Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.,Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.,American Academy of Manipulative Therapy Fellowship in Orthopaedic Manual Physical Therapy, Montgomery, AL, USA
| | - César Fernández-de-Las-Peñas
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Filippo Maselli
- DINOGMI Department, Genova University, Genova, Italy.,Sovrintendenza Sanitaria Regionale Puglia INAIL, Bari, Italy
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Abstract
PURPOSE This report is a review of findings on the diagnosis, treatment, clinical course, follow-up, and prognosis of craniopharyngioma patients with special regard to clinical trials and long-term management. METHODS Literature search on Pubmed for paper published after 1994. RESULTS Craniopharyngiomas are rare, embryonic malformations of the sellar/parasellar region with low histological grade. Clinical manifestations are related to increased intracranial pressure, visual impairment, and hypothalamic/pituitary deficiencies. If the tumor is favorably localized, therapy of choice is complete resection, with care taken to preserve hypothalamic and optic functions. In patients with unfavorable tumor location (i.e. involvement of hypothalamic areas), recommended therapy is limited hypothalamus-sparing surgical strategy followed by irradiation. Irradiation has proven effective in treatment of recurrences and progression. Surgical lesions and/or anatomical involvement of posterior hypothalamic areas can result in serious sequelae, mainly hypothalamic syndrome. CONCLUSIONS It is crucial that craniopharyngioma be managed as a frequently chronic disease, providing ongoing care of pediatric and adult patients' by experienced multidisciplinary teams in the context of multicenter trials.
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Affiliation(s)
- Hermann L Müller
- Department of Pediatrics, Klinikum Oldenburg AöR, Medical Campus University Oldenburg, Rahel-Straus-Strasse 10, 26133, Oldenburg, Germany.
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7
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Reddy GD, Hansen D, Patel A, Lin Y, Jea A, Lam S. Treatment options for pediatric craniopharyngioma. Surg Neurol Int 2016; 7:S174-8. [PMID: 27057397 PMCID: PMC4804398 DOI: 10.4103/2152-7806.178570] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 11/26/2015] [Indexed: 01/23/2023] Open
Affiliation(s)
- Gaddum D Reddy
- Department of Neurosurgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, USA
| | - Daniel Hansen
- Department of Neurosurgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, USA
| | - Achal Patel
- Department of Neurosurgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, USA
| | - Yimo Lin
- Department of Neurosurgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, USA
| | - Andrew Jea
- Department of Neurosurgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, USA
| | - Sandi Lam
- Department of Neurosurgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, USA
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Martinez-Barbera JP. Molecular and cellular pathogenesis of adamantinomatous craniopharyngioma. Neuropathol Appl Neurobiol 2015; 41:721-32. [PMID: 25611703 PMCID: PMC4949713 DOI: 10.1111/nan.12226] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 01/16/2015] [Indexed: 01/05/2023]
Abstract
Adamantinomatous craniopharyngiomas (ACPs) are the most common pituitary tumours in children. Although histologically benign, these are clinically aggressive tumours, difficult to manage and associated with poor quality of life for the patients. Several human and mouse studies have provided unequivocal evidence that the over-activation of the WNT/β-catenin signalling pathway underlies the molecular aetiology of these tumours. Recently, research using genetically modified mouse models of human ACP have revealed a critical and unexpected non-cell autonomous role for pituitary stem cells in ACP tumourigenesis, which has expanded the cancer stem cell paradigm. As the result of this basic research, the pathogenesis of ACP is being unveiled, with promising implications for the development of novel treatments against these childhood neoplasms. These benign tumours may additionally represent a unique model to provide insights into the initial steps of oncogenesis.
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Affiliation(s)
- Juan Pedro Martinez-Barbera
- Birth Defects Research Centre, Developmental Biology and Cancer Programme, Institute of Child Health, University College London, London, UK
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9
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Daubenbüchel AMM, Müller HL. Neuroendocrine Disorders in Pediatric Craniopharyngioma Patients. J Clin Med 2015; 4:389-413. [PMID: 26239246 PMCID: PMC4470135 DOI: 10.3390/jcm4030389] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 01/14/2015] [Accepted: 01/29/2015] [Indexed: 12/31/2022] Open
Abstract
Childhood-onset craniopharyngiomas are partly cystic embryonic malformations of the sellar/parasellar region. The therapy of choice in patients with favorable tumor localization is complete resection with a specific focus on maintaining optical and hypothalamic neuroendocrine functions. In patients with unfavorable tumor localization (i.e., hypothalamic involvement), a limited hypothalamus-sparing surgical strategy followed by local irradiation is recommended. Involvement and/or surgical lesions of posterior hypothalamic areas cause major neuroendocrine sequelae. The overall survival rates are high (92%) but neuroendocrine disorders such as obesity and metabolic syndrome due to involvement and/or treatment-related hypothalamic lesions have major negative impact on survival and quality of life. Recurrences and progressions are frequent post-surgical events. Because irradiation is efficient in preventing tumor progression, appropriate timing of post-surgical irradiation is currently under investigation in a randomized multinational trial (KRANIOPHARYNGEOM 2007). Childhood-onset craniopharyngioma should be recognized as a chronic disease requiring treatment and constant monitoring of the clinical and quality of life consequences, frequently impaired due to neuroendocrine disorders, by experienced multidisciplinary teams in order to provide optimal care of surviving patients.
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Affiliation(s)
- Anna M M Daubenbüchel
- Department of Pediatrics, Klinikum Oldenburg, Medical Campus University Oldenburg, Rahel-Straus-Strasse 10, Oldenburg 26133, Germany.
- University Medical Center Groningen, University of Groningen, Groningen 9713, The Netherlands.
| | - Hermann L Müller
- Department of Pediatrics, Klinikum Oldenburg, Medical Campus University Oldenburg, Rahel-Straus-Strasse 10, Oldenburg 26133, Germany.
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10
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Abstract
This report is a review of findings on the diagnosis, treatment, clinical course, and prognosis of craniopharyngioma patients. Craniopharyngiomas are rare, partly cystic and calcified embryonic malformations of the sellar/parasellar region with low histological grade (WHO I°). A bimodal age distribution has been shown, with peak incidence rates in childhood-onset at 5-14 years and adult-onset craniopharyngioma at 50-74 years. Clinical manifestations are related to hypothalamic/pituitary deficiencies, visual impairment, and increased intracranial pressure. If the tumor is favorably localized, the therapy of choice is complete resection, with care taken to preserve optical and hypothalamic functions. In patients with unfavorable tumor localization (i.e., hypothalamic involvement), recommended therapy is a limited hypothalamus-sparing surgical strategy followed by local irradiation. Although overall survival rates are high (92%), recurrences and progressions are frequent. Irradiation has proven effective in reducing recurrences and progression, and timing of postsurgical irradiation in childhood-onset cases is currently under investigation in a randomized multinational trial (KRANIOPHARYNGEOM 2007). Anatomical involvement and/or surgical lesions of posterior hypothalamic areas can result in serious quality of life-compromising sequelae such as hypothalamic obesity, psychopathological symptoms, and/or cognitive problems. It is crucial that craniopharyngioma be managed as a frequently chronic disease, providing ongoing care of pediatric and adult patients' clinical and quality of life consequences by experienced multidisciplinary teams.
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Affiliation(s)
- Hermann L Müller
- Department of Pediatrics, Klinikum Oldenburg, Medical Campus University Oldenburg, 26133 Oldenburg, Germany
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Stache C, Hölsken A, Schlaffer SM, Hess A, Metzler M, Frey B, Fahlbusch R, Flitsch J, Buchfelder M, Buslei R. Insights into the infiltrative behavior of adamantinomatous craniopharyngioma in a new xenotransplant mouse model. Brain Pathol 2014; 25:1-10. [PMID: 24716541 DOI: 10.1111/bpa.12148] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 04/04/2014] [Indexed: 02/03/2023] Open
Abstract
Adamantinomatous craniopharyngiomas (adaCP) cause hypothalamic pituitary dysfunction. Elucidation of pathomechanisms underlying tumor progression is essential for the development of targeted chemotherapeutic treatment options. In order to study the mechanisms of tumor outgrowth, we implanted human primary adaCP tissue from three different surgical specimens stereotactically into the brain of immunodeficient mice (n = 20). Three months after tumor inoculation, magnetic resonance imaging and histology confirmed tumor engraftment in all 20 mice (100%) that obtained tissue transplants. The lesions invaded adjoining brain tissue with micro finger-shaped protrusions. Immunohistochemical comparison of the primary tumor and xenotransplants revealed a similar amount of proliferation (Mib-1) and cytokeratin expression pattern (KL-1). Whole tumor reconstruction using serial sections confirmed whirl-like cell clusters with nuclear β-catenin accumulations at the tumor brain border. These whirls were surrounded by a belt of Claudin-1 expressing cells, showed an activated epidermal growth factor receptor (EGFR) and distinct CD133 as well as p21(WAF1/Cip1) positivity, indicating a tumor stem cell phenotype. Consistent with our previous in vitro studies, intracranial xenotransplants of adaCP confirmed cells with nuclear β-catenin and activated EGFR being the driving force of tumor outgrowth. This model provides the possibility to study in vivo tumor cell migration and to test novel treatment regimens targeting this tumor stem cell niche.
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Affiliation(s)
- Christina Stache
- Department of Neuropathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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Stache C, Hölsken A, Fahlbusch R, Flitsch J, Schlaffer SM, Buchfelder M, Buslei R. Tight junction protein claudin-1 is differentially expressed in craniopharyngioma subtypes and indicates invasive tumor growth. Neuro Oncol 2013; 16:256-64. [PMID: 24305709 DOI: 10.1093/neuonc/not195] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Claudins are tight junction proteins expressed in epithelial tissues that play important roles in cell polarity and adhesion. Altered distribution of claudin-1(CLDN1) affects cell mobility and tumor invasiveness. Craniopharyngiomas (CPs) represent epithelial tumors of the sellar region, consisting of adamantinomatous (adaCP) and papillary (papCP) variants. Their tendency to infiltrate surrounding brain structures complicates successful surgery. Reliable markers are required to predict tumor behavior and to establish individualized treatment protocols. METHODS We describe the distribution pattern of CLDN1 in a large cohort of 66 adaCPs, 21 papCPs, and 24 Rathke`s cleft cyst (RCC) cases using immunohistochemistry. CLDN1 mRNA levels were analyzed with qRT-PCR in 33 CP samples. The impact on the migration potential was studied in primary adaCP cell cultures (n = 11) treated with small interfering RNA (siRNA) for CLDN1. Furthermore, CLDN1 distribution patterns and expression levels were compared between invasive (n = 16) and noninvasive (n = 17) tumor groups. RESULTS PapCPs and RCCs exhibited a distinct homogenous and membranous expression pattern, whereas CLDN1 immunoreactivity appeared weaker and more heterogeneous in adaCPs. In the latter cases, whirl-like cell clusters showed complete absence of CLDN1. mRNA analysis confirmed reduced CLDN1 levels in adaCPs versus papCPs. Interestingly, invasive tumors exhibited significantly lower CLDN1 expression compared with noninvasive counterparts regardless of CP subtype. Accordingly, siRNA treatment for CLDN1 altered tumor cell migration in vitro. CONCLUSION CLDN1 represents a novel marker in the differential diagnosis of CP variants and RCCs. Low CLDN1 expression levels correlate with an invasive CP growth pattern and may serve as a prognostic marker.
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Affiliation(s)
- Christina Stache
- Corresponding author: Rolf Buslei, MD, University Hospital Erlangen, Department of Neuropathology, Schwabachanlage 6, 91054 Erlangen, Germany.
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