机构:[1]Department of Neural Reconstruction, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.首都医科大学附属天坛医院[2]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.首都医科大学附属天坛医院[3]Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.[4]Department of Nuclear Medicine, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.首都医科大学附属天坛医院[5]Departments of Pathology, Xuanwu Hospital, Capital Medical University, Beijing, China.医技科室病理科首都医科大学宣武医院[6]Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA.
Treatment of schwannomas in patients with neurofibromatosis type 2 (NF2) is extremely unsatisfactory, and innovative therapeutic approaches are urgently needed. However, the lack of clinically relevant NF2-associated schwannoma models has severely hampered drug discovery in this rare disease. Here, we report the first establishment and characterization of patient-derived xenograft (PDX) and cell line models of NF2-associated schwannoma, which recapitulate the morphological and histopathological features of patient tumors, retain patient NF2 mutations, and maintain gene expression profiles resembling patient tumor profiles with the preservation of multiple key signaling pathways commonly dysregulated in human schwannomas. Using gene expression profiling, we identified elevated PI3K/AKT/mTOR networks in human NF2-associated vestibular schwannomas. Using high-throughput screening of 157 inhibitors targeting the PI3K/AKT/mTOR pathways in vitro, we identified a dozen inhibitors (such as BEZ235, LY2090314, and AZD8055) with significant growth-suppressive effects. Interestingly, we observed that three cell lines displayed differential therapeutic responses to PI3K/AKT/mTOR inhibitors. Furthermore, we demonstrated two orally bioavailable inhibitors AZD8055 and PQR309 suppressed NF2-associated schwannoma growth both in vitro and in vivo. In conclusion, our novel patient-derived models of NF2-associated schwannoma closely mimic the phenotypes and genotypes of patient tumors, making them reliable preclinical tools for testing novel personalized therapies. This article is protected by copyright. All rights reserved.This article is protected by copyright. All rights reserved.
基金:
National Natural
Science Foundation of China (grant numbers: 7112049
to P. Liu and 8150110473 to ZY), the National Science
and Technology Support Program of the 12th Five-Year
Plan of China (grant number: 2012BAI12B03 to PL
and FZ), and Beijing Platform Construction of Basic
Research and Clinical Translation of Nervous System
Injury (2020) (number: PXM2020_026280_000002 from
the Beijing Municipal Health Commission to PL).
第一作者机构:[1]Department of Neural Reconstruction, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.[2]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.[*1]Department of Neural Reconstruction, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South 4th Ring West Road, Fengtai District, Beijing, 100070, PR China
通讯作者:
通讯机构:[1]Department of Neural Reconstruction, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.[2]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.[*1]Department of Neural Reconstruction, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South 4th Ring West Road, Fengtai District, Beijing, 100070, PR China
推荐引用方式(GB/T 7714):
Zhao Fu,Chen Yang,Li Shi-Wei,et al.Novel patient-derived xenograft and cell line models for therapeutic screening in NF2-associated schwannoma.[J].JOURNAL OF PATHOLOGY.2022,257(5):620-634.doi:10.1002/path.5908.
APA:
Zhao Fu,Chen Yang,Li Shi-Wei,Zhang Jing,Zhang Shun...&Liu Pi-Nan.(2022).Novel patient-derived xenograft and cell line models for therapeutic screening in NF2-associated schwannoma..JOURNAL OF PATHOLOGY,257,(5)
MLA:
Zhao Fu,et al."Novel patient-derived xenograft and cell line models for therapeutic screening in NF2-associated schwannoma.".JOURNAL OF PATHOLOGY 257..5(2022):620-634