SURROGATE MARKERS PREDICT ANGIOGENIC POTENTIAL AND SURVIVAL IN PATIENTS WITH GLIOBLASTOMA MULTIFORME

Abstract OBJECTIVE The neovascularization of malignant brain tumors is a poorly understood phenomenon. Radiographic and histological evidence of increased vascularity correlate with clinical grade of gliomas. However, a quantitative noninvasive assay to assess glioma vascularity and associated clini...

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Veröffentlicht in:Neurosurgery 2009-05, Vol.64 (5), p.819-827
Hauptverfasser: Greenfield, Jeffrey P., Jin, David K., Young, Lauren M., Christos, Paul J., Abrey, Lauren, Rafii, Shahin, Gutin, Philip H.
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container_end_page 827
container_issue 5
container_start_page 819
container_title Neurosurgery
container_volume 64
creator Greenfield, Jeffrey P.
Jin, David K.
Young, Lauren M.
Christos, Paul J.
Abrey, Lauren
Rafii, Shahin
Gutin, Philip H.
description Abstract OBJECTIVE The neovascularization of malignant brain tumors is a poorly understood phenomenon. Radiographic and histological evidence of increased vascularity correlate with clinical grade of gliomas. However, a quantitative noninvasive assay to assess glioma vascularity and associated clinical aggressiveness has not been developed. Circulating endothelial progenitor cells are unique vascular precursors recruited from the bone marrow through the circulation to form new tumor blood vessels. These cells were measured in patients undergoing surgery for glioblastoma multiforme (GBM). We hypothesized that this might reflect the extent of tumor vascularity, predict prognosis, or be useful as an assay to assess response to antiangiogenesis therapies. In addition, we report on a novel in vitro assay to assess the proangiogenic activity within the plasma samples obtained from glioma patients. METHODS Fifty-six patients with various-grade gliomas had peripheral venous blood collected at the time of surgery and at subsequent visits during the follow-up period. The blood was separated into plasma and cellular fractions. The plasma was utilized in a human umbilical vein endothelial cell-based angiogenic assay. The cellular fraction containing endothelial progenitor cells was isolated, and specific cellular phenotypes were immunologically separated and counted using flow cytometry. Pathological samples were reviewed at the time of initial resection, and each patient's clinical course was monitored until the time of manuscript submission. RESULTS Plasma derived from peripheral blood of patients with GBM scored significantly higher on the functional angiogenic scale compared with plasma derived from patients with low-grade gliomas and from controls. In addition, all patients with GBM had measurable numbers of bone marrow-derived endothelial precursor cells coexpressing CD133 and vascular endothelial growth factor receptor 2 in their peripheral circulation at the time of tumor resection. These cells range from less than 0.1% to 1.6% of the entire circulating mononuclear white blood cell population, or approximately 200 000 cells in some patients. A statistically significant relationship was observed between the percentage of endothelial progenitor cells in the peripheral blood at the time of initial GBM resection and survival. CONCLUSION These studies suggest that plasma and circulating CD133+ vascular endothelial growth factor receptor 2+ proangiogenic cells are p
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Radiographic and histological evidence of increased vascularity correlate with clinical grade of gliomas. However, a quantitative noninvasive assay to assess glioma vascularity and associated clinical aggressiveness has not been developed. Circulating endothelial progenitor cells are unique vascular precursors recruited from the bone marrow through the circulation to form new tumor blood vessels. These cells were measured in patients undergoing surgery for glioblastoma multiforme (GBM). We hypothesized that this might reflect the extent of tumor vascularity, predict prognosis, or be useful as an assay to assess response to antiangiogenesis therapies. In addition, we report on a novel in vitro assay to assess the proangiogenic activity within the plasma samples obtained from glioma patients. METHODS Fifty-six patients with various-grade gliomas had peripheral venous blood collected at the time of surgery and at subsequent visits during the follow-up period. The blood was separated into plasma and cellular fractions. The plasma was utilized in a human umbilical vein endothelial cell-based angiogenic assay. The cellular fraction containing endothelial progenitor cells was isolated, and specific cellular phenotypes were immunologically separated and counted using flow cytometry. Pathological samples were reviewed at the time of initial resection, and each patient's clinical course was monitored until the time of manuscript submission. RESULTS Plasma derived from peripheral blood of patients with GBM scored significantly higher on the functional angiogenic scale compared with plasma derived from patients with low-grade gliomas and from controls. In addition, all patients with GBM had measurable numbers of bone marrow-derived endothelial precursor cells coexpressing CD133 and vascular endothelial growth factor receptor 2 in their peripheral circulation at the time of tumor resection. These cells range from less than 0.1% to 1.6% of the entire circulating mononuclear white blood cell population, or approximately 200 000 cells in some patients. A statistically significant relationship was observed between the percentage of endothelial progenitor cells in the peripheral blood at the time of initial GBM resection and survival. CONCLUSION These studies suggest that plasma and circulating CD133+ vascular endothelial growth factor receptor 2+ proangiogenic cells are present in the peripheral blood of patients with glioma and can be used as a surrogate biomarker to measure tumor angiogenicity. These cells can be measured at the time of diagnosis and monitored in the postoperative period. These assays can be used to predict tumor aggressiveness. Also promising is their potential to identify patients with increased angiogenic activity who might respond maximally to antiangiogenesis therapies or to assess tumor response in patients using those therapies as the use of these adjuvant molecular modalities becomes more prevalent in neuro-oncology.</description><identifier>ISSN: 0148-396X</identifier><identifier>EISSN: 1524-4040</identifier><identifier>DOI: 10.1227/01.NEU.0000343742.06625.DB</identifier><identifier>PMID: 19404145</identifier><identifier>CODEN: NRSRDY</identifier><language>eng</language><publisher>Hagerstown, MD: Oxford University Press</publisher><subject>AC133 Antigen ; Adult ; Aged ; Aged, 80 and over ; Antigens, CD - metabolism ; Biological and medical sciences ; Biological Assay - methods ; Biomarkers, Tumor - metabolism ; Blood ; Bone marrow ; Brain cancer ; Brain Neoplasms - blood ; Brain Neoplasms - mortality ; Brain Neoplasms - pathology ; Endothelial Cells - metabolism ; Endothelial Cells - pathology ; Enzyme-Linked Immunosorbent Assay - methods ; Female ; Flow Cytometry ; Follow-Up Studies ; Glioblastoma - blood ; Glioblastoma - mortality ; Glioblastoma - pathology ; Glioma ; Glycoproteins - metabolism ; Humans ; Male ; Medical prognosis ; Medical sciences ; Middle Aged ; Neovascularization, Pathologic - blood ; Neurosurgery ; Peptides - metabolism ; Plasma ; Stem Cells - metabolism ; Stem Cells - pathology ; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases ; Umbilical Veins - pathology ; Vascular endothelial growth factor ; Vascular Endothelial Growth Factor Receptor-2 - metabolism</subject><ispartof>Neurosurgery, 2009-05, Vol.64 (5), p.819-827</ispartof><rights>Copyright © 2009 by the Congress of Neurological Surgeons</rights><rights>2009 INIST-CNRS</rights><rights>Copyright © Congress of Neurological Surgeons</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c421t-c260303d3bad56a1f8a70a3fd5eb59a8e9b42ac66b8e6264dcaa773ab8bab0a53</citedby><cites>FETCH-LOGICAL-c421t-c260303d3bad56a1f8a70a3fd5eb59a8e9b42ac66b8e6264dcaa773ab8bab0a53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=21463944$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19404145$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Greenfield, Jeffrey P.</creatorcontrib><creatorcontrib>Jin, David K.</creatorcontrib><creatorcontrib>Young, Lauren M.</creatorcontrib><creatorcontrib>Christos, Paul J.</creatorcontrib><creatorcontrib>Abrey, Lauren</creatorcontrib><creatorcontrib>Rafii, Shahin</creatorcontrib><creatorcontrib>Gutin, Philip H.</creatorcontrib><title>SURROGATE MARKERS PREDICT ANGIOGENIC POTENTIAL AND SURVIVAL IN PATIENTS WITH GLIOBLASTOMA MULTIFORME</title><title>Neurosurgery</title><addtitle>Neurosurgery</addtitle><description>Abstract OBJECTIVE The neovascularization of malignant brain tumors is a poorly understood phenomenon. Radiographic and histological evidence of increased vascularity correlate with clinical grade of gliomas. However, a quantitative noninvasive assay to assess glioma vascularity and associated clinical aggressiveness has not been developed. Circulating endothelial progenitor cells are unique vascular precursors recruited from the bone marrow through the circulation to form new tumor blood vessels. These cells were measured in patients undergoing surgery for glioblastoma multiforme (GBM). We hypothesized that this might reflect the extent of tumor vascularity, predict prognosis, or be useful as an assay to assess response to antiangiogenesis therapies. In addition, we report on a novel in vitro assay to assess the proangiogenic activity within the plasma samples obtained from glioma patients. METHODS Fifty-six patients with various-grade gliomas had peripheral venous blood collected at the time of surgery and at subsequent visits during the follow-up period. The blood was separated into plasma and cellular fractions. The plasma was utilized in a human umbilical vein endothelial cell-based angiogenic assay. The cellular fraction containing endothelial progenitor cells was isolated, and specific cellular phenotypes were immunologically separated and counted using flow cytometry. Pathological samples were reviewed at the time of initial resection, and each patient's clinical course was monitored until the time of manuscript submission. RESULTS Plasma derived from peripheral blood of patients with GBM scored significantly higher on the functional angiogenic scale compared with plasma derived from patients with low-grade gliomas and from controls. In addition, all patients with GBM had measurable numbers of bone marrow-derived endothelial precursor cells coexpressing CD133 and vascular endothelial growth factor receptor 2 in their peripheral circulation at the time of tumor resection. These cells range from less than 0.1% to 1.6% of the entire circulating mononuclear white blood cell population, or approximately 200 000 cells in some patients. A statistically significant relationship was observed between the percentage of endothelial progenitor cells in the peripheral blood at the time of initial GBM resection and survival. CONCLUSION These studies suggest that plasma and circulating CD133+ vascular endothelial growth factor receptor 2+ proangiogenic cells are present in the peripheral blood of patients with glioma and can be used as a surrogate biomarker to measure tumor angiogenicity. These cells can be measured at the time of diagnosis and monitored in the postoperative period. These assays can be used to predict tumor aggressiveness. Also promising is their potential to identify patients with increased angiogenic activity who might respond maximally to antiangiogenesis therapies or to assess tumor response in patients using those therapies as the use of these adjuvant molecular modalities becomes more prevalent in neuro-oncology.</description><subject>AC133 Antigen</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Antigens, CD - metabolism</subject><subject>Biological and medical sciences</subject><subject>Biological Assay - methods</subject><subject>Biomarkers, Tumor - metabolism</subject><subject>Blood</subject><subject>Bone marrow</subject><subject>Brain cancer</subject><subject>Brain Neoplasms - blood</subject><subject>Brain Neoplasms - mortality</subject><subject>Brain Neoplasms - pathology</subject><subject>Endothelial Cells - metabolism</subject><subject>Endothelial Cells - pathology</subject><subject>Enzyme-Linked Immunosorbent Assay - methods</subject><subject>Female</subject><subject>Flow Cytometry</subject><subject>Follow-Up Studies</subject><subject>Glioblastoma - blood</subject><subject>Glioblastoma - mortality</subject><subject>Glioblastoma - pathology</subject><subject>Glioma</subject><subject>Glycoproteins - metabolism</subject><subject>Humans</subject><subject>Male</subject><subject>Medical prognosis</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Neovascularization, Pathologic - blood</subject><subject>Neurosurgery</subject><subject>Peptides - metabolism</subject><subject>Plasma</subject><subject>Stem Cells - metabolism</subject><subject>Stem Cells - pathology</subject><subject>Surgery (general aspects). 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Radiographic and histological evidence of increased vascularity correlate with clinical grade of gliomas. However, a quantitative noninvasive assay to assess glioma vascularity and associated clinical aggressiveness has not been developed. Circulating endothelial progenitor cells are unique vascular precursors recruited from the bone marrow through the circulation to form new tumor blood vessels. These cells were measured in patients undergoing surgery for glioblastoma multiforme (GBM). We hypothesized that this might reflect the extent of tumor vascularity, predict prognosis, or be useful as an assay to assess response to antiangiogenesis therapies. In addition, we report on a novel in vitro assay to assess the proangiogenic activity within the plasma samples obtained from glioma patients. METHODS Fifty-six patients with various-grade gliomas had peripheral venous blood collected at the time of surgery and at subsequent visits during the follow-up period. The blood was separated into plasma and cellular fractions. The plasma was utilized in a human umbilical vein endothelial cell-based angiogenic assay. The cellular fraction containing endothelial progenitor cells was isolated, and specific cellular phenotypes were immunologically separated and counted using flow cytometry. Pathological samples were reviewed at the time of initial resection, and each patient's clinical course was monitored until the time of manuscript submission. RESULTS Plasma derived from peripheral blood of patients with GBM scored significantly higher on the functional angiogenic scale compared with plasma derived from patients with low-grade gliomas and from controls. In addition, all patients with GBM had measurable numbers of bone marrow-derived endothelial precursor cells coexpressing CD133 and vascular endothelial growth factor receptor 2 in their peripheral circulation at the time of tumor resection. These cells range from less than 0.1% to 1.6% of the entire circulating mononuclear white blood cell population, or approximately 200 000 cells in some patients. A statistically significant relationship was observed between the percentage of endothelial progenitor cells in the peripheral blood at the time of initial GBM resection and survival. CONCLUSION These studies suggest that plasma and circulating CD133+ vascular endothelial growth factor receptor 2+ proangiogenic cells are present in the peripheral blood of patients with glioma and can be used as a surrogate biomarker to measure tumor angiogenicity. These cells can be measured at the time of diagnosis and monitored in the postoperative period. These assays can be used to predict tumor aggressiveness. Also promising is their potential to identify patients with increased angiogenic activity who might respond maximally to antiangiogenesis therapies or to assess tumor response in patients using those therapies as the use of these adjuvant molecular modalities becomes more prevalent in neuro-oncology.</abstract><cop>Hagerstown, MD</cop><pub>Oxford University Press</pub><pmid>19404145</pmid><doi>10.1227/01.NEU.0000343742.06625.DB</doi><tpages>9</tpages></addata></record>
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subjects AC133 Antigen
Adult
Aged
Aged, 80 and over
Antigens, CD - metabolism
Biological and medical sciences
Biological Assay - methods
Biomarkers, Tumor - metabolism
Blood
Bone marrow
Brain cancer
Brain Neoplasms - blood
Brain Neoplasms - mortality
Brain Neoplasms - pathology
Endothelial Cells - metabolism
Endothelial Cells - pathology
Enzyme-Linked Immunosorbent Assay - methods
Female
Flow Cytometry
Follow-Up Studies
Glioblastoma - blood
Glioblastoma - mortality
Glioblastoma - pathology
Glioma
Glycoproteins - metabolism
Humans
Male
Medical prognosis
Medical sciences
Middle Aged
Neovascularization, Pathologic - blood
Neurosurgery
Peptides - metabolism
Plasma
Stem Cells - metabolism
Stem Cells - pathology
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Umbilical Veins - pathology
Vascular endothelial growth factor
Vascular Endothelial Growth Factor Receptor-2 - metabolism
title SURROGATE MARKERS PREDICT ANGIOGENIC POTENTIAL AND SURVIVAL IN PATIENTS WITH GLIOBLASTOMA MULTIFORME
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