Cell cycle arrest and astrocytic differentiation resulting from PTEN expression in glioma cells.

Abstract:

OBJECT:Genetic alterations of the PTEN gene (also known as MMAC1 or TEP1) have frequently been identified in high-grade gliomas, indicating that inactivation of PTEN plays a crucial role in human glioma progression. The aim of this study was to assess the biological significance of PTEN inactivation in the development of glioma. METHODS:The authors introduced wild-type PTEN complementary DNA into four human glioma cell lines (T98G, U-251MG, U-87MG, and A172) containing endogenous aberrant PTEN alleles. The number of colonies transfected with the wild-type PTEN was reduced to 15 to 32% of those found after transfection of a control vector, suggesting growth suppression by the exogenous PTEN. To analyze phenotypic alterations produced by PTEN expression, T98G-derived clones with inducible PTEN expression were further established using a tetracycline-regulated inducible gene expression system. Induction of PTEN expression suppressed the in vitro growth of T98G cells with accumulation of G1 phase cells. Furthermore, when cells were cultured in the presence of the extracellular matrix (ECM), PTEN expression caused distinct morphological changes, with multiple and elongated cytoplasmic processes similar to those of normal astrocytes. The level of glial fibrillary acidic protein, an intermediate protein specifically expressed in differentiated astrocytes, was upregulated concomitantly. CONCLUSIONS:These findings strongly indicate that exogenous PTEN expression inhibits the proliferation of glioma cells by inducing G1 arrest and elicits astrocytic differentiation in the presence of the ECM. Inactivation of PTEN would play an important role in the enhancement of unregulated growth of undifferentiated glioma cells.

journal_name

J Neurosurg

journal_title

Journal of neurosurgery

authors

Adachi J,Ohbayashi K,Suzuki T,Sasaki T

doi

10.3171/jns.1999.91.5.0822

subject

Has Abstract

pub_date

1999-11-01 00:00:00

pages

822-30

issue

5

eissn

0022-3085

issn

1933-0693

journal_volume

91

pub_type

杂志文章
  • Intraspinal tumors in children. A review of 81 cases.

    abstract::The authors have presented 81 children with intraspinal tumors, all less than 16 years of age. The clinical features indicated that gait disturbance, pain, and sphincter disturbance are the most prominent complaints. Reflex changes, paralysis, and sensory impairment are the most frequent physical findings. Cerebrospin...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1979.51.4.0437

    authors: DeSousa AL,Kalsbeck JE,Mealey J Jr,Campbell RL,Hockey A

    更新日期:1979-10-01 00:00:00

  • Does size matter? Investigating the optimal planning target volume margin for postoperative stereotactic radiosurgery to resected brain metastases.

    abstract:OBJECTIVE:The optimal margin size in postoperative stereotactic radiosurgery (SRS) for brain metastases is unknown. Herein, the authors investigated the effect of SRS planning target volume (PTV) margin on local recurrence and symptomatic radiation necrosis postoperatively. METHODS:Records of patients who received pos...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2017.9.JNS171735

    authors: Jhaveri J,Chowdhary M,Zhang X,Press RH,Switchenko JM,Ferris MJ,Morgan TM,Roper J,Dhabaan A,Elder E,Eaton BR,Olson JJ,Curran WJ,Shu HG,Crocker IR,Patel KR

    更新日期:2018-04-20 00:00:00

  • Early results of surgery in patients with nonfunctioning pituitary adenoma and analysis of the risk of tumor recurrence.

    abstract:OBJECT:Nonfunctioning pituitary adenomas (NFPAs) are benign tumors of the pituitary gland that typically cause visual and/or hormonal dysfunction. Surgery is the treatment of choice, but patients remain at risk for tumor recurrence for several years afterwards. The authors evaluate the early results of surgery and the ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/JNS/2008/108/3/0525

    authors: Losa M,Mortini P,Barzaghi R,Ribotto P,Terreni MR,Marzoli SB,Pieralli S,Giovanelli M

    更新日期:2008-03-01 00:00:00

  • Gamma surgery for melanoma metastases in the brain.

    abstract:OBJECT:The aim of this study was to evaluate the usefulness and limitations of gamma surgery (GS) in the treatment of brain metastases from melanoma. METHODS:Imaging and clinical outcomes in 45 patients treated for 92 brain metastases from melanoma between October 1989 and October 1999 were retrospectively analyzed. F...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2002.96.3.0544

    authors: Mingione V,Oliveira M,Prasad D,Steiner M,Steiner L

    更新日期:2002-03-01 00:00:00

  • Endoscopic extradural supraorbital approach to the temporal pole and adjacent area: technical note.

    abstract::The authors' initial experience with the endoscopic extradural supraorbital approach to the temporal pole and adjacent area is reported. Fully endoscopic surgery using the extradural space via a supraorbital keyhole was performed for tumors in or around the temporal pole, including temporal pole cavernous angioma, sph...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2017.3.JNS162228

    authors: Komatsu F,Imai M,Shigematsu H,Aoki R,Oda S,Shimoda M,Matsumae M

    更新日期:2018-06-01 00:00:00

  • Correlation between the efferent venous drainage of the tumor and peritumoral edema in intracranial meningiomas: superselective angiographic analysis of 25 cases.

    abstract:OBJECT:The extent of peritumoral brain edema (PTBE) associated with meningiomas can be highly variable. The authors studied the correlation between the development of efferent venous drainage from the tumor and the degree of PTBE that occurs in intracranial meningiomas. METHODS:Twenty-five patients with 27 intracrania...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2006.104.3.382

    authors: Tanaka M,Imhof HG,Schucknecht B,Kollias S,Yonekawa Y,Valavanis A

    更新日期:2006-03-01 00:00:00

  • Factors involved in long-term efficacy of deep brain stimulation of the thalamus for essential tremor.

    abstract:OBJECT:Although nucleus ventralis intermedius stimulation has been shown to be safe and efficacious in the treatment of essential tremor, there is a subset of patients who eventually lose benefit from their stimulation. Proposed causes for this phenomenon include tolerance, disease progression, and suboptimal location....

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/JNS/2008/109/10/0640

    authors: Pilitsis JG,Metman LV,Toleikis JR,Hughes LE,Sani SB,Bakay RA

    更新日期:2008-10-01 00:00:00

  • Mechanical and chemical thrombolysis of cerebral sinus thrombosis: evolution of a technique.

    abstract::Cerebral sinus thrombosis, although uncommon, can be lethal if not recognized and treated quickly. Systemic heparin has become the treatment standard of care; however, some patients' conditions continue to deteriorate even while taking heparin. Endovascular techniques for thrombolysis have continued to evolve. The aut...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2010.2.JNS09685

    authors: Rickert KL,Purdy PD,Welch BG

    更新日期:2011-01-01 00:00:00

  • Development of the Wireless Instantaneous Neurotransmitter Concentration System for intraoperative neurochemical monitoring using fast-scan cyclic voltammetry.

    abstract:OBJECT:Emerging evidence supports the hypothesis that modulation of specific central neuronal systems contributes to the clinical efficacy of deep brain stimulation (DBS) and motor cortex stimulation (MCS). Real-time monitoring of the neurochemical output of targeted regions may therefore advance functional neurosurger...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2009.3.JNS081348

    authors: Bledsoe JM,Kimble CJ,Covey DP,Blaha CD,Agnesi F,Mohseni P,Whitlock S,Johnson DM,Horne A,Bennet KE,Lee KH,Garris PA

    更新日期:2009-10-01 00:00:00

  • Relative survival rates and patterns of diagnosis analyzed by time period for individuals with primary malignant brain tumor, 1973-1997.

    abstract:OBJECT:The purpose of this study was to examine patterns of diagnosis and relative survival rates in individuals in whom a primary malignant brain tumor was diagnosed between 1973 and 1997; follow-up review of these patients continued through the end of 1999. METHODS:The study population was composed of 21,493 patient...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2003.99.3.0458

    authors: Barnholtz-Sloan JS,Sloan AE,Schwartz AG

    更新日期:2003-09-01 00:00:00

  • Ethnic differences in risk factors for subarachnoid hemorrhage.

    abstract:OBJECT:Studies on risk factors for subarachnoid hemorrhage (SAH) show heterogeneity. For example, hypertension has been found to be a significant risk factor in some studies but not in others. The authors hypothesized that differences in the ethnicity of the populations studied could account for these findings. METHOD...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章,meta分析

    doi:10.3171/JNS-07/09/0522

    authors: Krishna V,Kim DH

    更新日期:2007-09-01 00:00:00

  • Diagnostic value of preoperative inflammatory markers in patients with glioma: a multicenter cohort study.

    abstract::OBJECTIVE Glioma is the most common form of brain tumor and has high lethality. The authors of this study aimed to elucidate the efficiency of preoperative inflammatory markers, including neutrophil/lymphocyte ratio (NLR), derived NLR (dNLR), platelet/lymphocyte ratio (PLR), lymphocyte/monocyte ratio (LMR), and progno...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章,多中心研究

    doi:10.3171/2017.3.JNS161648

    authors: Zheng SH,Huang JL,Chen M,Wang BL,Ou QS,Huang SY

    更新日期:2018-09-01 00:00:00

  • Long-term outcome of pallidal stimulation for Meige syndrome.

    abstract::OBJECTIVE Meige syndrome is characterized by blepharospasm and varied subphenotypes of craniocervical dystonia. Current literature on pallidal surgery for Meige syndrome is limited to case reports and a few small-scale studies. The authors investigated the clinical outcomes of deep brain stimulation (DBS) of the globu...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2017.7.JNS17323

    authors: Horisawa S,Ochiai T,Goto S,Nakajima T,Takeda N,Kawamata T,Taira T

    更新日期:2018-01-19 00:00:00

  • Prospective, randomized, double-blind trial of BQ-123 and bosentan for prevention of vasospasm following subarachnoid hemorrhage in monkeys.

    abstract::Thirty-one monkeys were randomly divided into three groups to undergo baseline cerebral angiography followed by induction of subarachnoid hemorrhage by placement of autologous blood clot along the right-sided arteries of the anterior circle of Willis (Day 0). The monkeys were then given drug vehicle or one of two endo...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1995.83.3.0503

    authors: Hino A,Weir BK,Macdonald RL,Thisted RA,Kim CJ,Johns LM

    更新日期:1995-09-01 00:00:00

  • Anatomic variations of venous sinuses in the region of the torcular Herophili.

    abstract::In this study of 110 cranial cavities from adult cadavers, the superior sagittal sinus was found to divide into two channels. In most cases, the division was associated with a dural partition. Essentially, the variations as observed in this study could be grouped into three types: Type 1 includes those specimens in wh...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1985.62.1.0090

    authors: Bisaria KK

    更新日期:1985-01-01 00:00:00

  • Elucidating the kinetics of sodium fluorescein for fluorescence-guided surgery of glioma.

    abstract:OBJECTIVE:The use of the optical contrast agent sodium fluorescein (NaFl) to guide resection of gliomas has been under investigation for decades. Although this imaging strategy assumes the agent remains confined to the vasculature except in regions of blood-brain barrier (BBB) disruption, clinical studies have reported...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2018.4.JNS172644

    authors: Folaron M,Strawbridge R,Samkoe KS,Filan C,Roberts DW,Davis SC

    更新日期:2018-09-07 00:00:00

  • Temporal characteristics of radiosurgical lesions in an animal model.

    abstract::To characterize the temporal course of radiosurgical lesions, 19 cats were irradiated in an animal linear accelerator radiosurgical device. The animals were followed clinically and, at 3.5, 6, 12, 18, 23, 29, and 63 weeks, were studied with gadolinium-enhanced magnetic resonance (MR) imaging. They were then sacrificed...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1994.80.6.1046

    authors: Blatt DR,Friedman WA,Bova FJ,Theele DP,Mickle JP

    更新日期:1994-06-01 00:00:00

  • Incidence and causes of perioperative mortality after primary surgery for intracranial tumors: a national, population-based study.

    abstract:OBJECT:Surgical mortality is a frequent outcome measure in studies of volume-outcome relationships, and the Agency for Healthcare Research and Quality has endorsed surgical mortality after craniotomies as an Inpatient Quality Indicator. Still, the frequency and causes of 30-day mortality after neurosurgical procedures ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2011.12.JNS11339

    authors: Solheim O,Jakola AS,Gulati S,Johannesen TB

    更新日期:2012-04-01 00:00:00

  • Pressure reactivity as a guide in the treatment of cerebral perfusion pressure in patients with brain trauma.

    abstract:OBJECT:The aim of this study was to compare the effects of two different treatment protocols on physiological characteristics and outcome in patients with brain trauma. One protocol was primarily oriented toward reducing intracranial pressure (ICP), and the other primarily on maintaining cerebral perfusion pressure (CP...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章,多中心研究

    doi:10.3171/jns.2005.102.2.0311

    authors: Howells T,Elf K,Jones PA,Ronne-Engström E,Piper I,Nilsson P,Andrews P,Enblad P

    更新日期:2005-02-01 00:00:00

  • Subcutaneous bone flap storage after emergency craniectomy: cost-effectiveness and rate of resorption.

    abstract::OBJECTIVEDecompressive craniectomy is used for uncontrolled intracranial pressure in traumatic brain injury and malignant hemispheric stroke. Subcutaneous preservation of the autologous bone flap in the abdomen is a simple, portable technique but has largely been abandoned due to perceived concerns of resorption. The ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/2017.6.JNS17943

    authors: Ernst G,Qeadan F,Carlson AP

    更新日期:2018-12-01 00:00:00

  • Induction of hypercontractility in human cerebral arteries by rewarming following hypothermia: a possible role for tyrosine kinase.

    abstract::Induction of hypothermia is used routinely in neurosurgical and cardiovascular operations to protect the brain from ischemic insult. However, despite a plethora of experimental evidence supporting the use of hypothermia to protect the brain from ischemia, clinical experience using deliberate hypothermia in humans has ...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1997.87.3.0431

    authors: Sagher O,Huang DL,Webb RC

    更新日期:1997-09-01 00:00:00

  • Surgical management of the recurrence and regrowth of craniopharyngiomas.

    abstract:OBJECT:The authors performed a retrospective analysis of a consecutive series of craniopharyngiomas and their recurrences, which were managed with surgery alone. METHODS:In the past 20 years, 37 consecutive patients with craniopharyngiomas underwent surgery without adjuvant radiotherapy. During that period there was a...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.2005.103.2.0224

    authors: Minamida Y,Mikami T,Hashi K,Houkin K

    更新日期:2005-08-01 00:00:00

  • Natural history of intracranial cavernous malformations.

    abstract::The authors have reviewed the clinical records of 110 patients with intracranial cavernous malformations diagnosed by histological examination and/or magnetic resonance imaging over a mean follow-up period of 4.71 years. These cases were divided, based on their presentation, into a hemorrhage group, a seizure group, a...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1995.83.1.0056

    authors: Aiba T,Tanaka R,Koike T,Kameyama S,Takeda N,Komata T

    更新日期:1995-07-01 00:00:00

  • Intraoperative localization using an armless, frameless stereotactic wand. Technical note.

    abstract::A technique of "frameless" stereotaxy that allows real-time intraoperative neurosurgical localization is described. The system is composed of four components: a hand-held probe containing two ultrasonic emitters, a microphone array that is rigidly affixed to the operating table in proximity to the surgical field, hard...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1993.78.3.0510

    authors: Barnett GH,Kormos DW,Steiner CP,Weisenberger J

    更新日期:1993-03-01 00:00:00

  • Physostigmine in the treatment of intrathecal baclofen overdose. Report of three cases.

    abstract::The expanding use of intrathecal baclofen for spasticity has raised a concern about the treatment of overdose in these patients, since no specific baclofen antagonist is available. Since physostigmine has been reported to reverse the respiratory depression and somnolence due to opiates, the drug was tried for the trea...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1989.71.2.0273

    authors: Müller-Schwefe G,Penn RD

    更新日期:1989-08-01 00:00:00

  • A comparison of computerized tomography-guided stereotactic and ultrasound-guided techniques for brain biopsy.

    abstract::Forty-one patients with brain lesions underwent brain biopsy using either a computerized tomography (CT)-guided stereotactic approach or an ultrasound-guided technique. The cases were selected according to location and size of the mass lesion. Lesions 15 mm or less in diameter and those in the posterior fossa were bio...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1991.75.5.0763

    authors: Di Lorenzo N,Esposito V,Lunardi P,Delfini R,Fortuna A,Cantore G

    更新日期:1991-11-01 00:00:00

  • Titanium dural clip testing. Technical note.

    abstract::Spinal dural lacerations can be a difficult part of spinal surgery. A dural tear can result in complications that include meningitis and pseudocyst formation. Appropriate treatment for these tears is generally suturing, using 4.0, 5.0, or 6.0 suture. For successful closure of dural lacerations, the authors have collab...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1994.81.6.0947

    authors: Levy DI,Sonntag VK

    更新日期:1994-12-01 00:00:00

  • Multimodality treatment of posterior fossa arteriovenous malformations.

    abstract:OBJECT:Posterior fossa arteriovenous malformations (AVMs) are relatively uncommon and often difficult to treat. The authors present their experience with multimodality treatment of 76 posterior fossa AVMs, with an emphasis on Spetzler-Martin Grades III-V AVMs. METHODS:Seventy-six patients with posterior fossa AVMs tre...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/JNS/2008/108/6/1152

    authors: Kelly ME,Guzman R,Sinclair J,Bell-Stephens TE,Bower R,Hamilton S,Marks MP,Do HM,Chang SD,Adler JR,Levy RP,Steinberg GK

    更新日期:2008-06-01 00:00:00

  • Terminal spreading depolarizations causing electrocortical silencing prior to clinical brain death: case report.

    abstract::The authors report on a 57-year-old woman in whom progression to brain death occurred on day 9 after aneurysmal subarachnoid hemorrhage without evidence of significant brain edema or vasospasm. Neuromonitoring demonstrated that brain death was preceded by a series of cortical spreading depolarizations that occurred in...

    journal_title:Journal of neurosurgery

    pub_type:

    doi:10.3171/2018.7.JNS181478

    authors: Carlson AP,Shuttleworth CW,Major S,Lemale CL,Dreier JP,Hartings JA

    更新日期:2018-12-07 00:00:00

  • Value of gas myelography in early management of acute cervical spinal cord injuries.

    abstract::Gas myelography was carried out in 22 patients with acute cervical spinal cord injuries in whom oily contrast media seemed contraindicated. The authors believe this technique makes a valuable contribution to the basic decision regarding the surgical versus medical treatment of a specific patient with a cervical cord i...

    journal_title:Journal of neurosurgery

    pub_type: 杂志文章

    doi:10.3171/jns.1975.42.3.0330

    authors: Rossier AB,Berney J,Rosenbaum AE,Hachen J

    更新日期:1975-03-01 00:00:00