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Author Goffart, N.; Lombard, A.; Lallemand, F.; Kroonen, J.; Nassen, J.; Di Valentin, E.; Berendsen, S.; Dedobbeleer, M.; Willems, E.; Robe, P.; Bours, V.; Martin, D.; Martinive, P.; Maquet, P.; Rogister, B. url  doi
openurl 
  Title (up) CXCL12 mediates glioblastoma resistance to radiotherapy in the subventricular zone Type Journal Article
  Year 2017 Publication Neuro-Oncology Abbreviated Journal Neuro Oncol  
  Volume 19 Issue 1 Pages 66-77  
  Keywords Animals; Brain Neoplasms/metabolism/*pathology/radiotherapy; Chemokine CXCL12/*metabolism; Cranial Irradiation/*adverse effects; Gamma Rays/adverse effects; Glioblastoma/metabolism/*pathology/radiotherapy; Humans; Lateral Ventricles/metabolism/*pathology/radiation effects; Mice; Mice, Nude; Neoplastic Stem Cells/metabolism/*pathology/radiation effects; *Radiation Tolerance; Signal Transduction/radiation effects; Tumor Cells, Cultured; Cxcl12; glioblastoma; mesenchymal activation; radioresistance; subventricular zone  
  Abstract BACKGROUND: Patients with glioblastoma (GBM) have an overall median survival of 15 months despite multimodal therapy. These catastrophic survival rates are to be correlated to systematic relapses that might arise from remaining glioblastoma stem cells (GSCs) left behind after surgery. In this line, it has recently been demonstrated that GSCs are able to escape the tumor mass and preferentially colonize the adult subventricular zone (SVZ). At a distance from the initial tumor site, these GSCs might therefore represent a high-quality model of clinical resilience to therapy and cancer relapses as they specifically retain tumor-initiating abilities. METHOD: While relying on recent findings that have validated the existence of GSCs in the human SVZ, we questioned the role of the SVZ niche as a potential GSC reservoir involved in therapeutic failure. RESULTS: Our results demonstrate that (i) GSCs located in the SVZ are specifically resistant to radiation in vivo, (ii) these cells display enhanced mesenchymal roots that are known to be associated with cancer radioresistance, (iii) these mesenchymal traits are specifically upregulated by CXCL12 (stromal cell-derived factor-1) both in vitro and in the SVZ environment, (iv) the amount of SVZ-released CXCL12 mediates GBM resistance to radiation in vitro, and (v) interferes with the CXCL12/CXCR4 signalling system, allowing weakening of the tumor mesenchymal roots and radiosensitizing SVZ-nested GBM cells. CONCLUSION: Together, these data provide evidence on how the adult SVZ environment, through the release of CXCL12, supports GBM therapeutic failure and potential tumor relapse.  
  Address Laboratory of Developmental Neurobiology, GIGA-Neurosciences Research Center, University of Liege, Liege, Belgium (N.G., A.L., J.N., M.D., E.W., B.R.); Department of Neurosurgery, CHU and University of Liege, Liege, Belgium (A.L., D.M.); Department of Radiotherapy and Oncology, CHU and University of Liege, Liege, Belgium (F.L., P.M.); Laboratory of Tumor and Development Biology, GIGA-Cancer Research Center, University of Liege, Liege, Belgium (F.L.); Cyclotron Research Centre, University of Liege, Liege, Belgium (F.L.); Human Genetics, CHU and University of Liege, Liege, Belgium (N.G., J.K., V.B.); Department of Neurosurgery, Brain Center Rudolf Magnus Institute of Neurosciences and the T&P Bohnenn Laboratory for Neuro-Oncology University Medical Center, Utrecht, The Netherlands (N.G., J.K., S.B., P.R.); GIGA-Viral Vector Plateform, University of Liege, Liege, Belgium (E.D.V.); Department of Neurology, CHU and University of Liege, Liege, Belgium (P.M., B.R.)  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1522-8517 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27370398 Approved no  
  Call Number ref @ user @ Serial 96647  
Permanent link to this record
 

 
Author Mistry, A.M.; Dewan, M.C.; White-Dzuro, G.A.; Brinson, P.R.; Weaver, K.D.; Thompson, R.C.; Ihrie, R.A.; Chambless, L.B. url  doi
openurl 
  Title (up) Decreased survival in glioblastomas is specific to contact with the ventricular-subventricular zone, not subgranular zone or corpus callosum Type Journal Article
  Year 2017 Publication Journal of Neuro-Oncology Abbreviated Journal J Neurooncol  
  Volume 132 Issue 2 Pages 341-349  
  Keywords Glioblastoma; Stem cells; Subgranular zone; Subventricular zone; Survival; Ventricular-subventricular zone  
  Abstract The clinical effect of radiographic contact of glioblastoma (GBM) with neurogenic zones (NZ)-the ventricular-subventricular (VSVZ) and subgranular (SGZ) zones-and the corpus callosum (CC) remains unclear and, in the case of the SGZ, unexplored. We investigated (1) if GBM contact with a NZ correlates with decreased survival; (2) if so, whether this effect is associated with a specific NZ; and (3) if radiographic contact with or invasion of the CC by GBM is associated with decreased survival. We retrospectively identified 207 adult patients who underwent cytoreductive surgery for GBM followed by chemotherapy and/or radiation. Age, preoperative Karnofsky performance status score (KPS), and extent of resection were recorded. Preoperative MRIs were blindly analyzed to calculate tumor volume and assess its contact with VSVZ, SGZ, CC, and cortex. Overall (OS) and progression free (PFS) survivals were calculated and analyzed with multivariate Cox analyses. Among the 207 patients, 111 had GBM contacting VSVZ (VSVZ+GBMs), 23 had SGZ+GBMs, 52 had CC+GBMs, and 164 had cortex+GBMs. VSVZ+, SGZ+, and CC+ GBMs were significantly larger in size relative to their respective non-contacting controls. Multivariate Cox survival analyses revealed GBM contact with the VSVZ, but not SGZ, CC, or cortex, as an independent predictor of lower OS, PFS, and early recurrence. We hypothesize that the VSVZ niche has unique properties that contribute to GBM pathobiology in adults.  
  Address Department of Neurological Surgery, Vanderbilt University Medical Center, T-4224 Medical Center North, 1161 21st Avenue South, Nashville, TN, 37232-2380, USA  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0167-594X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28074322 Approved no  
  Call Number ref @ user @ Serial 96612  
Permanent link to this record
 

 
Author Fernandez Palacios, L.; Barrientos Augustinus, E.; Raudales Urquia, C.; Frontela Saseta, C.; Ros Berruezo, G. url  openurl
  Title (up) Degree of malnutrition and its relationship with major structural and eating factors in Honduran preschool population. Prevalence of breastfeeding Type Journal Article
  Year 2017 Publication Nutricion Hospitalaria Abbreviated Journal Nutr Hosp  
  Volume 34 Issue 3 Pages 639-646  
  Keywords *Honduras; *Child malnutrition; *Breastfeeding  
  Abstract Introduction: Child malnutrition remains a serious public health problem in Honduras, with a national prevalence according to the World Health Organization (WHO) reference values of 29% in children under fi ve. In addition, the average chronic malnutrition in the region amounts to 80% in poor and indigenous communities, making Honduras the second country in Central America with the highest incidence of chronic malnutrition. Another problem of the region is the early cessation of exclusive breastfeeding: only 29.7% of children were exclusively breastfed until they were six months. Therefore, the study seeks to understand, identify and quantify the situation determinants and provide information for the design of public policies. Material and method:: The study consisted of a cross-sectional descriptive anthropometric assessment in which the nutritional status and the prevalence of undernourishment, malnutrition and malnutrition in 141 children aged between six months and fi ve years, belonging to urban and rural regions of the country, were analyzed, as well as assessing the prevalence of breastfeeding in fi ve Honduran departments (Intibuca, Lempira, Atlantida, Olancho and Francisco Morazan). Results and conclusion: When making the analysis by departments, differences regarding nutritional status and breastfeeding were observed between urban and rural areas, the latter being doubled in the case of chronic malnutrition and underweight, with percentages of 14.6% in urban areas versus28.8% in rural areas, and 4.6% in urban areas compared to 9% in rural areas, respectively. However, with respect to acute malnutrition and overweight in both regions, similar values were observed, above 1.1% for acute and 14% for overweight malnutrition. In relation to exclusive breastfeeding for six months, the departments of Olancho and Lempira maintained it for two years, with a percentage distribution of 80% and 48%, respectively. It must be noted that 36% of mothers did not provide breastfeeding, with the highest rate (15%) in the department of Francisco Morazan.  
  Address . l.fernandezpalacios@um.es  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Spanish Summary Language Original Title Grado de malnutricion y su relacion con los principales factores estructurales y alimentarios de la poblacion preescolar hondurena. Prevalencia de la lactancia materna en los mismos  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0212-1611 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28627201 Approved no  
  Call Number ref @ user @ Serial 97043  
Permanent link to this record
 

 
Author Fernandez Palacios, L.; Barrientos Augustinus, E.; Raudales Urquia, C.; Frontela Saseta, C.; Ros Berruezo, G. url  openurl
  Title (up) Degree of malnutrition and its relationship with major structural and eating factors in Honduran preschool population. Prevalence of breastfeeding Type Journal Article
  Year 2017 Publication Nutricion Hospitalaria Abbreviated Journal Nutr Hosp  
  Volume 34 Issue 3 Pages 639-646  
  Keywords *Honduras; *Child malnutrition; *Breastfeeding  
  Abstract Introduction: Child malnutrition remains a serious public health problem in Honduras, with a national prevalence according to the World Health Organization (WHO) reference values of 29% in children under fi ve. In addition, the average chronic malnutrition in the region amounts to 80% in poor and indigenous communities, making Honduras the second country in Central America with the highest incidence of chronic malnutrition. Another problem of the region is the early cessation of exclusive breastfeeding: only 29.7% of children were exclusively breastfed until they were six months. Therefore, the study seeks to understand, identify and quantify the situation determinants and provide information for the design of public policies. Material and method:: The study consisted of a cross-sectional descriptive anthropometric assessment in which the nutritional status and the prevalence of undernourishment, malnutrition and malnutrition in 141 children aged between six months and fi ve years, belonging to urban and rural regions of the country, were analyzed, as well as assessing the prevalence of breastfeeding in fi ve Honduran departments (Intibuca, Lempira, Atlantida, Olancho and Francisco Morazan). Results and conclusion: When making the analysis by departments, differences regarding nutritional status and breastfeeding were observed between urban and rural areas, the latter being doubled in the case of chronic malnutrition and underweight, with percentages of 14.6% in urban areas versus28.8% in rural areas, and 4.6% in urban areas compared to 9% in rural areas, respectively. However, with respect to acute malnutrition and overweight in both regions, similar values were observed, above 1.1% for acute and 14% for overweight malnutrition. In relation to exclusive breastfeeding for six months, the departments of Olancho and Lempira maintained it for two years, with a percentage distribution of 80% and 48%, respectively. It must be noted that 36% of mothers did not provide breastfeeding, with the highest rate (15%) in the department of Francisco Morazan.  
  Address . l.fernandezpalacios@um.es  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Spanish Summary Language Original Title Grado de malnutricion y su relacion con los principales factores estructurales y alimentarios de la poblacion preescolar hondurena. Prevalencia de la lactancia materna en los mismos  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0212-1611 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28627201 Approved no  
  Call Number ref @ user @ Serial 97083  
Permanent link to this record
 

 
Author Fernandez Palacios, L.; Barrientos Augustinus, E.; Raudales Urquia, C.; Frontela Saseta, C.; Ros Berruezo, G. url  openurl
  Title (up) Degree of malnutrition and its relationship with major structural and eating factors in Honduran preschool population. Prevalence of breastfeeding Type Journal Article
  Year 2017 Publication Nutricion Hospitalaria Abbreviated Journal Nutr Hosp  
  Volume 34 Issue 3 Pages 639-646  
  Keywords *Honduras; *Child malnutrition; *Breastfeeding  
  Abstract Introduction: Child malnutrition remains a serious public health problem in Honduras, with a national prevalence according to the World Health Organization (WHO) reference values of 29% in children under fi ve. In addition, the average chronic malnutrition in the region amounts to 80% in poor and indigenous communities, making Honduras the second country in Central America with the highest incidence of chronic malnutrition. Another problem of the region is the early cessation of exclusive breastfeeding: only 29.7% of children were exclusively breastfed until they were six months. Therefore, the study seeks to understand, identify and quantify the situation determinants and provide information for the design of public policies. Material and method:: The study consisted of a cross-sectional descriptive anthropometric assessment in which the nutritional status and the prevalence of undernourishment, malnutrition and malnutrition in 141 children aged between six months and fi ve years, belonging to urban and rural regions of the country, were analyzed, as well as assessing the prevalence of breastfeeding in fi ve Honduran departments (Intibuca, Lempira, Atlantida, Olancho and Francisco Morazan). Results and conclusion: When making the analysis by departments, differences regarding nutritional status and breastfeeding were observed between urban and rural areas, the latter being doubled in the case of chronic malnutrition and underweight, with percentages of 14.6% in urban areas versus28.8% in rural areas, and 4.6% in urban areas compared to 9% in rural areas, respectively. However, with respect to acute malnutrition and overweight in both regions, similar values were observed, above 1.1% for acute and 14% for overweight malnutrition. In relation to exclusive breastfeeding for six months, the departments of Olancho and Lempira maintained it for two years, with a percentage distribution of 80% and 48%, respectively. It must be noted that 36% of mothers did not provide breastfeeding, with the highest rate (15%) in the department of Francisco Morazan.  
  Address . l.fernandezpalacios@um.es  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Spanish Summary Language Original Title Grado de malnutricion y su relacion con los principales factores estructurales y alimentarios de la poblacion preescolar hondurena. Prevalencia de la lactancia materna en los mismos  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0212-1611 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28627201 Approved no  
  Call Number ref @ user @ Serial 97123  
Permanent link to this record
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