Glioblastoma(GBM)is a malignant adult brain tumor for which 90%of patients experience recurrence within a year after surgery1.Evolution confers treatment resistance capabilities on tumors2.The diversification of malig...Glioblastoma(GBM)is a malignant adult brain tumor for which 90%of patients experience recurrence within a year after surgery1.Evolution confers treatment resistance capabilities on tumors2.The diversification of malignant and non-malignant(i.e.,stromal and immune cell)compartments in the tumor microenvironment(TME)during tumor evolution3-7 eventually results in the formation of a complex interaction network that promotes tumor progression.展开更多
Ionizing radiation is a popular and effective treatment option for glioblastoma(GBM).However,resistance to radiation therapy inevitably occurs during treatment.It is urgent to investigate the mechanisms of radioresist...Ionizing radiation is a popular and effective treatment option for glioblastoma(GBM).However,resistance to radiation therapy inevitably occurs during treatment.It is urgent to investigate the mechanisms of radioresistance in GBM and to find ways to improve radiosensitivity.Here,we found that heat shock protein 90 beta family member 1(HSP90B1)was significantly upregulated in radioresistant GBM cell lines.More importantly,HSP90B1 promoted the localization of glucose transporter type 1,a key rate-limiting factor of glycolysis,on the plasma membrane,which in turn enhanced glycolytic activity and subsequently tumor growth and radioresistance of GBM cells.These findings imply that targeting HSP90B1 may effectively improve the efficacy of radiotherapy for GBM patients,a potential new approach to the treatment of glioblastoma.展开更多
Background Patients with insulo-Sylvian gliomas continue to present with severe morbidity in cognitive functions primarily due to neurosurgeons’lack of familiarity with non-traditional brain networks.We sought to ide...Background Patients with insulo-Sylvian gliomas continue to present with severe morbidity in cognitive functions primarily due to neurosurgeons’lack of familiarity with non-traditional brain networks.We sought to identify the frequency of invasion and proximity of gliomas to portions of these networks.Methods We retrospectively analyzed data from 45 patients undergoing glioma surgery centered in the insular lobe.Tumors were categorized based on their proximity and invasiveness of non-traditional cognitive networks and traditionally eloquent structures.Diffusion tensor imaging tractography was completed by creating a personalized brain atlas using Quicktome to determine eloquent and non-eloquent networks in each patient.Additionally,we prospectively collected neuropsychological data on 7 patients to compare tumor-network involvement with change in cognition.Lastly,2 prospective patients had their surgical plan influenced by network mapping determined by Quicktome.Results Forty-four of 45 patients demonstrated tumor involvement(<1 cm proximity or invasion)with components of non-traditional brain networks involved in cognition such as the salience network(SN,60%)and the central executive network(CEN,56%).Of the seven prospective patients,all had tumors involved with the SN,CEN(5/7,71%),and language network(5/7,71%).The mean scores of MMSE and MOCA before surgery were 18.71±6.94 and 17.29±6.26,respectively.The two cases who received preoperative planning with Quicktome had a postoperative performance that was anticipated.Conclusions Non-traditional brain networks involved in cognition are encountered during surgical resection of insulo-Sylvian gliomas.Quicktome can improve the understanding of the presence of these networks and allow for more informed surgical decisions based on patient functional goals.展开更多
Diffuse glioma is the most common primary malignant brain tumor in adults.Currently,the prognosis of glioma remains dismal,and almost all patients with glioma experience recurrence even after comprehensive treatment i...Diffuse glioma is the most common primary malignant brain tumor in adults.Currently,the prognosis of glioma remains dismal,and almost all patients with glioma experience recurrence even after comprehensive treatment including maximal surgical resection,radiotherapy,and/or chemotherapy1.Gliomas can be stratified according to their IDH mutation status.As we have previously reported2,3,the genetic characteristics,pathogenesis,and chemotherapy response are distinct between IDH-mutant and IDH-wildtype tumors.For instance,IDH-wildtype tumors are associated with poor prognosis and frequently have genomic alterations,including a gain of chromosome 7 and loss of chromosome 10.IDHmutant tumors often show findings including CpG island hypermethylation and MET alterations.展开更多
A paper titled"The CRISPR-Cas13 a gene-editing system induces collateral cleavage of RNA in glioma cells",recently published in Advanced Science by the Kang group,reports the promising application of the CRI...A paper titled"The CRISPR-Cas13 a gene-editing system induces collateral cleavage of RNA in glioma cells",recently published in Advanced Science by the Kang group,reports the promising application of the CRISPR-Cas13 a system in cancer cells1.展开更多
基金supported by grants from the National Natural Science Foundation of China(Grant Nos.91959113,81972358,82261160578,and 82272867)the Beijing Nova Program(Grant No.Z201100006820118)。
文摘Glioblastoma(GBM)is a malignant adult brain tumor for which 90%of patients experience recurrence within a year after surgery1.Evolution confers treatment resistance capabilities on tumors2.The diversification of malignant and non-malignant(i.e.,stromal and immune cell)compartments in the tumor microenvironment(TME)during tumor evolution3-7 eventually results in the formation of a complex interaction network that promotes tumor progression.
基金supported by the National Natural Science Foundation of China(Grant Nos.82072765 to X.Q.and 82172667 to X.W.).
文摘Ionizing radiation is a popular and effective treatment option for glioblastoma(GBM).However,resistance to radiation therapy inevitably occurs during treatment.It is urgent to investigate the mechanisms of radioresistance in GBM and to find ways to improve radiosensitivity.Here,we found that heat shock protein 90 beta family member 1(HSP90B1)was significantly upregulated in radioresistant GBM cell lines.More importantly,HSP90B1 promoted the localization of glucose transporter type 1,a key rate-limiting factor of glycolysis,on the plasma membrane,which in turn enhanced glycolytic activity and subsequently tumor growth and radioresistance of GBM cells.These findings imply that targeting HSP90B1 may effectively improve the efficacy of radiotherapy for GBM patients,a potential new approach to the treatment of glioblastoma.
基金supported by a grant from the National Natural Science Foundation of China(81974389)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
文摘Background Patients with insulo-Sylvian gliomas continue to present with severe morbidity in cognitive functions primarily due to neurosurgeons’lack of familiarity with non-traditional brain networks.We sought to identify the frequency of invasion and proximity of gliomas to portions of these networks.Methods We retrospectively analyzed data from 45 patients undergoing glioma surgery centered in the insular lobe.Tumors were categorized based on their proximity and invasiveness of non-traditional cognitive networks and traditionally eloquent structures.Diffusion tensor imaging tractography was completed by creating a personalized brain atlas using Quicktome to determine eloquent and non-eloquent networks in each patient.Additionally,we prospectively collected neuropsychological data on 7 patients to compare tumor-network involvement with change in cognition.Lastly,2 prospective patients had their surgical plan influenced by network mapping determined by Quicktome.Results Forty-four of 45 patients demonstrated tumor involvement(<1 cm proximity or invasion)with components of non-traditional brain networks involved in cognition such as the salience network(SN,60%)and the central executive network(CEN,56%).Of the seven prospective patients,all had tumors involved with the SN,CEN(5/7,71%),and language network(5/7,71%).The mean scores of MMSE and MOCA before surgery were 18.71±6.94 and 17.29±6.26,respectively.The two cases who received preoperative planning with Quicktome had a postoperative performance that was anticipated.Conclusions Non-traditional brain networks involved in cognition are encountered during surgical resection of insulo-Sylvian gliomas.Quicktome can improve the understanding of the presence of these networks and allow for more informed surgical decisions based on patient functional goals.
基金supported by grants from the National Natural Science Foundation of China(Grant Nos.81761168038,81903078,81972358,and 91959113)the Beijing Nova Program(Grant No.Z201100006820118).
文摘Diffuse glioma is the most common primary malignant brain tumor in adults.Currently,the prognosis of glioma remains dismal,and almost all patients with glioma experience recurrence even after comprehensive treatment including maximal surgical resection,radiotherapy,and/or chemotherapy1.Gliomas can be stratified according to their IDH mutation status.As we have previously reported2,3,the genetic characteristics,pathogenesis,and chemotherapy response are distinct between IDH-mutant and IDH-wildtype tumors.For instance,IDH-wildtype tumors are associated with poor prognosis and frequently have genomic alterations,including a gain of chromosome 7 and loss of chromosome 10.IDHmutant tumors often show findings including CpG island hypermethylation and MET alterations.
基金supported by grants from the National Natural Science Foundation of China(Grant No.81772682,81974389)Jiangsu Province’s Key Discipline of Medicine(Grant No.ZDXKA2016001)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。
文摘A paper titled"The CRISPR-Cas13 a gene-editing system induces collateral cleavage of RNA in glioma cells",recently published in Advanced Science by the Kang group,reports the promising application of the CRISPR-Cas13 a system in cancer cells1.
