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Xue K, Van Nostrand JD, Zhou J, Neu S, Müller I, Giagnoni L, Renella G. Phytomanagement Reduces Metal Availability and Microbial Metal Resistance in a Metal Contaminated Soil. Front Microbiol 2020; 11:1899. [PMID: 32849472 PMCID: PMC7426507 DOI: 10.3389/fmicb.2020.01899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 07/20/2020] [Indexed: 11/29/2022] Open
Abstract
Short rotation coppice (SRC) with metal tolerant plants may attenuate the pollution of excessive elements with potential toxicity in soils, while preserving soil resources and functionality. Here, we investigated effects of 6 years phytomanagement with willow SRC on properties including heavy metal levels, toxicity tested by BioTox, microbial biomass, enzyme activities, and functional gene abundances measured by GeoChip of soils contaminated by As, Cd, Pb and Zn, as compared to the same soils under non-managed mixed grassland representing no intervention treatment (Unt). Though metal total concentrations did not differ by SRC and Unt, SRC soils had lower metal availability and toxicity, higher organic carbon, microbial biomass, phosphatase, urease and protease activities, as compared to Unt soils. Significantly reduced abundances of genes encoding resistances to various metals and antibiotics were observed in SRC, likely attributed to reduced metal selective pressure based on less heavy metal availability and soil toxicity. SRC also significantly reduced abundances of genes involved in nitrogen, phosphorus, and sulfur cycles, possibly due to the willow induced selection. Overall, while the SRC phytomanagement did not reduce the total heavy metal concentrations in soils, it decreased the heavy metal availability and soil toxicity, which in turn led to less metal selective pressure on microbial communities. The SRC phytomanagement also reduced the abundances of nutrient cycling genes from microbial communities, possibly due to intense plant nutrient uptake that depleted soil nitrogen and phosphorus availability, and thus site-specific practices should be considered to improve the soil nutrient supply for phytomanagement plants.
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Affiliation(s)
- Kai Xue
- Key Laboratory of Environmental Biotechnology, Chinese Academy of Sciences (CAS), Beijing, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences (CAS), Beijing, China
| | - Joy D Van Nostrand
- Institute for Environmental Genomics & Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, United States
| | - Jizhong Zhou
- Institute for Environmental Genomics & Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, United States
| | - Silke Neu
- Saxon State Office for Environment, Agriculture and Geology, Freiberg, Germany
| | - Ingo Müller
- Saxon State Office for Environment, Agriculture and Geology, Freiberg, Germany
| | - Laura Giagnoni
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Florence, Italy
| | - Giancarlo Renella
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padua, Padua, Italy
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Neu S, Müller I, Dudel EG. Management of trace element-contaminated agricultural land by in situ stabilization combined with phytoexclusion over a three years crop rotation. Int J Phytoremediation 2020; 22:1059-1067. [PMID: 32075409 DOI: 10.1080/15226514.2020.1726869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study assessed in situ stabilization combined with phytoexclusion in practical application on agricultural land contaminated strongly, and spatially heterogeneous, with metals (Cd, Pb, and Zn) and As. Single and combined lime marl and phosphate treatments were consecutively planted with two cultivars each of rape, wheat, and barley differing in trace elements (TE) accumulation. The effects on soil acidity, NH4NO3-soluble, and straw and grain TE concentrations were evaluated. The combined fertilizer treatment most effectively reduced metals mobility, but neither amendment mitigated plant TE status, which correlated more with pseudo-total than NH4NO3-soluble TE in soil. The cultivar choice reduced grain Cd by 39 or 21% in barley or wheat, respectively, simultaneously decreased grain Zn, but conversely affected As uptake in wheat grains. The lack of correlations between grain TE concentrations suggests the potential for breeding cultivars with low Cd and As accumulation without causing Zn malnutrition. The cereals had relatively low yields, particularly on highly polluted areas, and only rape and barley grains unexceptionally suited for animal consumption. Agricultural measures and climatic conditions influenced TE mobility. The cultivars' TE uptake varied less than in greenhouse studies, stressing the importance of field studies for an adequate estimation of phytoexclusion potentials.
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Affiliation(s)
- Silke Neu
- Institute of General Ecology and Environmental Protection, Technische Universität Dresden, Tharandt, PF, Germany
- Saxon State Office for Environment, Agriculture and Geology, Dresden, Pillnitz, Germany
| | - Ingo Müller
- Saxon State Office for Environment, Agriculture and Geology, Dresden, Pillnitz, Germany
| | - E Gert Dudel
- Institute of General Ecology and Environmental Protection, Technische Universität Dresden, Tharandt, PF, Germany
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Neu S, Müller I, Herzig R, Dudel EG. Trace elements bioavailability to winter wheat (Triticum aestivum L.) grown subsequent to high biomass plants in a greenhouse study. Int J Phytoremediation 2018; 20:574-580. [PMID: 29688048 DOI: 10.1080/15226514.2017.1405377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Multielement-contaminated agricultural land requires the adaptation of agronomic practices to meet legal requirements for safe biomass production. The incorporation of bioenergy plants with, at least, moderate phytoextraction capacity into crop rotations with cereals can affect trace elements (TE) phytoavailability and, simultaneously, constitute economic revenues for farmers outside the food or forage sector. Hence, in a crop rotation pot study sunflower (Helianthus annuus L.), modified for high biomass and TE accumulation by chemical mutagenesis, was compared to winter oilseed rape (Brassica napus L.) as pre-crop. On two agricultural soils with different TE loads, the crops´ potential for phytoextraction and for impacts on TE uptake by subsequent winter wheat (Triticum aestivum L.) was studied. The results showed that rape tolerated high-level mixed contamination with metals (Cd, Pb and Zn) and As more than sunflower. In both soils, labile metals concentration increased and soil acidity remained high following sunflower. Furthermore, enhanced grain As accumulation in subsequent wheat was observed. By contrast, soil acidity and Cd or Zn accumulation of subsequent wheat decreased following rape. In the short term, moderate phytoextraction was superimposed by nutrient use or rhizosphere effects of pre-crops, which should be carefully monitored when designing crop rotations for contaminated land.
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Affiliation(s)
- Silke Neu
- a Institute of General Ecology and Environmental Protection, Technische Universität Dresden , Tharandt , Germany
| | - Ingo Müller
- b Saxon State Office for Environment, Agriculture, and Geology , Dresden, Pillnitz , Germany
| | - Rolf Herzig
- c Phytotech Foundation and AGB , Bern , Switzerland
| | - E Gert Dudel
- a Institute of General Ecology and Environmental Protection, Technische Universität Dresden , Tharandt , Germany
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Touceda-González M, Prieto-Fernández Á, Renella G, Giagnoni L, Sessitsch A, Brader G, Kumpiene J, Dimitriou I, Eriksson J, Friesl-Hanl W, Galazka R, Janssen J, Mench M, Müller I, Neu S, Puschenreiter M, Siebielec G, Vangronsveld J, Kidd PS. Microbial community structure and activity in trace element-contaminated soils phytomanaged by Gentle Remediation Options (GRO). Environ Pollut 2017; 231:237-251. [PMID: 28802993 DOI: 10.1016/j.envpol.2017.07.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 07/28/2017] [Accepted: 07/28/2017] [Indexed: 06/07/2023]
Abstract
Gentle remediation options (GRO) are based on the combined use of plants, associated microorganisms and soil amendments, which can potentially restore soil functions and quality. We studied the effects of three GRO (aided-phytostabilisation, in situ stabilisation and phytoexclusion, and aided-phytoextraction) on the soil microbial biomass and respiration, the activities of hydrolase enzymes involved in the biogeochemical cycles of C, N, P, and S, and bacterial community structure of trace element contaminated soils (TECS) from six field trials across Europe. Community structure was studied using denaturing gradient gel electrophoresis (DGGE) fingerprinting of Bacteria, α- and β-Proteobacteria, Actinobacteria and Streptomycetaceae, and sequencing of DGGE bands characteristic of specific treatments. The number of copies of genes involved in ammonia oxidation and denitrification were determined by qPCR. Phytomanagement increased soil microbial biomass at three sites and respiration at the Biogeco site (France). Enzyme activities were consistently higher in treated soils compared to untreated soils at the Biogeco site. At this site, microbial biomass increased from 696 to 2352 mg ATP kg-1 soil, respiration increased from 7.4 to 40.1 mg C-CO2 kg-1 soil d-1, and enzyme activities were 2-11-fold higher in treated soils compared to untreated soil. Phytomanagement induced shifts in the bacterial community structure at both, the total community and functional group levels, and generally increased the number of copies of genes involved in the N cycle (nirK, nirS, nosZ, and amoA). The influence of the main soil physico-chemical properties and trace element availability were assessed and eventual site-specific effects elucidated. Overall, our results demonstrate that phytomanagement of TECS influences soil biological activity in the long term.
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Affiliation(s)
- M Touceda-González
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Aptdo. 122, Santiago de Compostela 15780, Spain.
| | - Á Prieto-Fernández
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Aptdo. 122, Santiago de Compostela 15780, Spain
| | - G Renella
- University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 18, I-50144 Florence, Italy
| | - L Giagnoni
- University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 18, I-50144 Florence, Italy
| | - A Sessitsch
- AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources, 3430 Tulln, Austria
| | - G Brader
- AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources, 3430 Tulln, Austria
| | - J Kumpiene
- Luleå University of Technology, Waste Science & Technology, SE-97187 Luleå, Sweden
| | - I Dimitriou
- Swedish University of Agriculture Sciences, Department of Crop Production Ecology, SE-750 07 Uppsala, Sweden
| | - J Eriksson
- Swedish University of Agriculture Sciences, Department of Soil and Environment, SE-750 07 Uppsala, 17, Sweden
| | - W Friesl-Hanl
- AIT Austrian Institute of Technology GmbH, Center for Energy, 3430 Tulln, Austria
| | - R Galazka
- Institute of Soil Science and Plant Cultivation, State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - J Janssen
- Hasselt University, Centre for Environmental Sciences, 23 Agoralaan building D, B-3590 Diepenbeek, Belgium
| | - M Mench
- BIOGECO, INRA, Univ. Bordeaux, 33615 Pessac, France
| | - I Müller
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden Pillnitz, Germany
| | - S Neu
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden Pillnitz, Germany
| | - M Puschenreiter
- University of Natural Resources and Life Sciences Vienna - BOKU, Department of Forest and Soil Sciences, 3430 Tulln, Austria
| | - G Siebielec
- Institute of Soil Science and Plant Cultivation, State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - J Vangronsveld
- Hasselt University, Centre for Environmental Sciences, 23 Agoralaan building D, B-3590 Diepenbeek, Belgium
| | - P S Kidd
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Aptdo. 122, Santiago de Compostela 15780, Spain
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Quintela-Sabarís C, Marchand L, Kidd PS, Friesl-Hanl W, Puschenreiter M, Kumpiene J, Müller I, Neu S, Janssen J, Vangronsveld J, Dimitriou I, Siebielec G, Gałązka R, Bert V, Herzig R, Cundy AB, Oustrière N, Kolbas A, Galland W, Mench M. Assessing phytotoxicity of trace element-contaminated soils phytomanaged with gentle remediation options at ten European field trials. Sci Total Environ 2017; 599-600:1388-1398. [PMID: 28531917 DOI: 10.1016/j.scitotenv.2017.04.187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/11/2017] [Accepted: 04/24/2017] [Indexed: 05/11/2023]
Abstract
Gentle remediation options (GRO), i.e. in situ stabilisation, (aided) phytoextraction and (aided) phytostabilisation, were implemented at ten European sites contaminated with trace elements (TE) from various anthropogenic sources: mining, atmospheric fallout, landfill leachates, wood preservatives, dredged-sediments, and dumped wastes. To assess the performance of the GRO options, topsoil was collected from each field trial, potted, and cultivated with lettuce (Lactuca sativa L.) for 48days. Shoot dry weight (DW) yield, photosynthesis efficiency and major element and TE concentrations in the soil pore water and lettuce shoots were measured. GRO implementation had a limited effect on TE concentrations in the soil pore water, although use of multivariate Co-inertia Analysis revealed a clear amelioration effect in phytomanaged soils. Phytomanagement increased shoot DW yield at all industrial and mine sites, whereas in agricultural soils improvements were produced in one out of five sites. Photosynthesis efficiency was less sensitive than changes in shoot biomass and did not discriminate changes in soil conditions. Based on lettuce shoot DW yield, compost amendment followed by phytoextraction yielded better results than phytostabilisation; moreover shoot ionome data proved that, depending on initial soil conditions, recurrent compost application may be required to maintain crop production with common shoot nutrient concentrations.
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Affiliation(s)
- Celestino Quintela-Sabarís
- BIOGECO, INRA, Univ. Bordeaux, 33615 Pessac, France; Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela 15706, Spain.
| | | | - Petra S Kidd
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela 15706, Spain
| | - Wolfgang Friesl-Hanl
- AIT Austrian Institute of Technology, GmbH, Energy Department, 3430 Tulln, Austria
| | - Markus Puschenreiter
- University of Natural Resources and Life Sciences Vienna - BOKU, Department of Forest and Soil Sciences, 3430 Tulln, Austria
| | - Jurate Kumpiene
- Luleå University of Technology, Waste Science & Technology, SE-97187 Luleå, Sweden
| | - Ingo Müller
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, Pillnitz, 01326 Dresden, Germany
| | - Silke Neu
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, Pillnitz, 01326 Dresden, Germany
| | - Jolien Janssen
- Hasselt University, Centre for Environmental Sciences, 23 Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - Jaco Vangronsveld
- Hasselt University, Centre for Environmental Sciences, 23 Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - Ioannis Dimitriou
- Swedish University of Agriculture Sciences, Department of Crop Production Ecology, SE-750 07 Uppsala, Sweden
| | - Grzegorz Siebielec
- Institute of Soil Science and Plant Cultivation - State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - Rafał Gałązka
- Institute of Soil Science and Plant Cultivation - State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - Valérie Bert
- INERIS, Technologies and Sustainable and Clean Processes, Parc Technologique Alata, BP2, 60650 Verneuil en Halatte, France
| | - Rolf Herzig
- Phytotech Foundation (PT-F), and AGB-Bioindikation Umweltbeobachtung und oekologische Planung Quartiergasse, Bern, Switzerland
| | - Andrew B Cundy
- Ocean and Earth Science, National Oceanography Centre (Southampton), University of Southampton, Southampton, SO14 3ZH, UK
| | | | - Aliaksandr Kolbas
- BIOGECO, INRA, Univ. Bordeaux, 33615 Pessac, France; Brest State University named after A.S. Poushkin, 224016, Brest, Belarus
| | | | - Michel Mench
- BIOGECO, INRA, Univ. Bordeaux, 33615 Pessac, France
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Neu S, Schaller J, Dudel EG. Silicon availability modifies nutrient use efficiency and content, C:N:P stoichiometry, and productivity of winter wheat (Triticum aestivum L.). Sci Rep 2017; 7:40829. [PMID: 28094308 PMCID: PMC5240101 DOI: 10.1038/srep40829] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/12/2016] [Indexed: 11/09/2022] Open
Abstract
Silicon (Si) is known as beneficial element for graminaceous plants. The importance of Si for plant functioning of cereals was recently emphasized. However, about the effect of Si availability on biomass production, grain yield, nutrient status and nutrient use efficiency for wheat (Triticum aestivum L.), as one of the most important crop plants worldwide, less is known so far. Consequently, we assessed the effect of a broad range of supply levels of amorphous SiO2 on wheat plant performance. Our results revealed that Si is readily taken up and accumulated basically in aboveground vegetative organs. Carbon (C) and phosphorus (P) status of plants were altered in response to varying Si supply. In bulk straw biomass C concentration decreased with increasing Si supply, while P concentration increased from slight limitation towards optimal nutrition. Thereby, aboveground biomass production increased at low to medium supply levels of silica whereas grain yield increased at medium supply level only. Nutrient use efficiency was improved by Si insofar that biomass production was enhanced at constant nitrogen (N) status of substrate and plants. Consequently, our findings imply fundamental influences of Si on C turnover, P availability and nitrogen use efficiency for wheat as a major staple crop.
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Affiliation(s)
- Silke Neu
- Institute of Plant and Wood Chemistry, Technische Universität Dresden, Pienner Straße 19, 01737 Tharandt, Germany
| | - Jörg Schaller
- Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BayCEER), University Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - E. Gert Dudel
- Institute of Plant and Wood Chemistry, Technische Universität Dresden, Pienner Straße 19, 01737 Tharandt, Germany
- Institute of General Ecology and Environmental Protection, Technische Universität Dresden, Pienner Straße 7, 01737 Tharandt, Germany
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Kidd P, Mench M, Álvarez-López V, Bert V, Dimitriou I, Friesl-Hanl W, Herzig R, Janssen JO, Kolbas A, Müller I, Neu S, Renella G, Ruttens A, Vangronsveld J, Puschenreiter M. Agronomic Practices for Improving Gentle Remediation of Trace Element-Contaminated Soils. Int J Phytoremediation 2015; 17:1005-1037. [PMID: 25581041 DOI: 10.1080/15226514.2014.1003788] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The last few decades have seen the rise of Gentle soil Remediation Options (GRO), which notably include in situ contaminant stabilization ("inactivation") and plant-based (generally termed "phytoremediation") options. For trace element (TE)-contaminated sites, GRO aim to either decrease their labile pool and/or total content in the soil, thereby reducing related pollutant linkages. Much research has been dedicated to the screening and selection of TE-tolerant plant species and genotypes for application in GRO. However, the number of field trials demonstrating successful GRO remains well below the number of studies carried out at a greenhouse level. The move from greenhouse to field conditions requires incorporating agronomical knowledge into the remediation process and the ecological restoration of ecosystem services. This review summarizes agronomic practices against their demonstrated or potential positive effect on GRO performance, including plant selection, soil management practices, crop rotation, short rotation coppice, intercropping/row cropping, planting methods and plant densities, harvest and fertilization management, pest and weed control and irrigation management. Potentially negative effects of GRO, e.g., the introduction of potentially invasive species, are also discussed. Lessons learnt from long-term European field case sites are given for aiding the choice of appropriate management practices and plant species.
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Affiliation(s)
- Petra Kidd
- a Instituto de Investigaciones Agrobiológicas de Galicia (IIAG) , Consejo Superior de Investigaciones Científicas (CSIC) , Santiago de Compostela , Spain
| | - Michel Mench
- b INRA, UMR BIOGECO, Cestas , France; University of Bordeaux, UMR BIOGECO , Pessac , France , France
| | - Vanessa Álvarez-López
- a Instituto de Investigaciones Agrobiológicas de Galicia (IIAG) , Consejo Superior de Investigaciones Científicas (CSIC) , Santiago de Compostela , Spain
| | - Valérie Bert
- c INERIS, Technologies and Sustainable and Clean Processes , Verneuil en Halatte , France
| | - Ioannis Dimitriou
- d Swedish University of Agriculture Sciences , Department of Crop Production Ecology , Uppsala , Sweden
| | - Wolfgang Friesl-Hanl
- e AIT Austrian Institute of Technology GmbH , Health and Environment Department , Tulln , Austria
| | - Rolf Herzig
- f Phytotech Foundation (PT-F), and AGB-Bioindikation , Umweltbeobachtung und oekologische Planung Quartiergasse , Bern , Switzerland
| | - Jolien Olga Janssen
- g Hasselt University , Centre for Environmental Sciences , Diepenbeek , Belgium
| | - Aliaksandr Kolbas
- b INRA, UMR BIOGECO, Cestas , France; University of Bordeaux, UMR BIOGECO , Pessac , France , France
- h Brest State University named after A.S. Pushkin , Brest , Belarus
| | - Ingo Müller
- i Saxon State Office for Environment , Agriculture and Geology , Dresden , Germany
| | - Silke Neu
- i Saxon State Office for Environment , Agriculture and Geology , Dresden , Germany
| | - Giancarlo Renella
- j University of Florence , Department of Agrifood Production and Environmental Sciences , Florence , Italy
| | - Ann Ruttens
- g Hasselt University , Centre for Environmental Sciences , Diepenbeek , Belgium
| | - Jaco Vangronsveld
- g Hasselt University , Centre for Environmental Sciences , Diepenbeek , Belgium
| | - Markus Puschenreiter
- k University of Natural Resources and Life Sciences Vienna - BOKU , Department of Forest and Soil Sciences , Tulln , Austria
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Kumpiene J, Bert V, Dimitriou I, Eriksson J, Friesl-Hanl W, Galazka R, Herzig R, Janssen J, Kidd P, Mench M, Müller I, Neu S, Oustriere N, Puschenreiter M, Renella G, Roumier PH, Siebielec G, Vangronsveld J, Manier N. Selecting chemical and ecotoxicological test batteries for risk assessment of trace element-contaminated soils (phyto)managed by gentle remediation options (GRO). Sci Total Environ 2014; 496:510-522. [PMID: 25108253 DOI: 10.1016/j.scitotenv.2014.06.130] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 05/21/2014] [Accepted: 06/29/2014] [Indexed: 05/26/2023]
Abstract
During the past decades a number of field trials with gentle remediation options (GRO) have been established on trace element (TE) contaminated sites throughout Europe. Each research group selects different methods to assess the remediation success making it difficult to compare efficacy between various sites and treatments. This study aimed at selecting a minimum risk assessment battery combining chemical and ecotoxicological assays for assessing and comparing the effectiveness of GRO implemented in seven European case studies. Two test batteries were pre-selected; a chemical one for quantifying TE exposure in untreated soils and GRO-managed soils and a biological one for characterizing soil functionality and ecotoxicity. Soil samples from field studies representing one of the main GROs (phytoextraction in Belgium, Sweden, Germany and Switzerland, aided phytoextraction in France, and aided phytostabilization or in situ stabilization/phytoexclusion in Poland, France and Austria) were collected and assessed using the selected test batteries. The best correlations were obtained between NH4NO3-extractable, followed by NaNO3-extractable TE and the ecotoxicological responses. Biometrical parameters and biomarkers of dwarf beans were the most responsive indicators for the soil treatments and changes in soil TE exposures. Plant growth was inhibited at the higher extractable TE concentrations, while plant stress enzyme activities increased with the higher TE extractability. Based on these results, a minimum risk assessment battery to compare/biomonitor the sites phytomanaged by GROs might consist of the NH4NO3 extraction and the bean Plantox test including the stress enzyme activities.
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Affiliation(s)
- Jurate Kumpiene
- Luleå University of Technology, Waste Science & Technology, SE-97187 Luleå, Sweden.
| | - Valérie Bert
- INERIS, Technologies and Sustainable and Clean Processes, Parc Technologique Alata, BP2, 60550 Verneuil en Halatte, France
| | - Ioannis Dimitriou
- Swedish University of Agriculture Sciences, Department of Crop Production Ecology, SE-750 07 Uppsala, Sweden
| | - Jan Eriksson
- Swedish University of Agriculture Sciences, Department of Soil and Environment, SE-750 07 Uppsala, Sweden
| | - Wolfgang Friesl-Hanl
- AIT Austrian Institute of Technology GmbH, Health and Environment Department, 3430 Tulln, Austria
| | - Rafal Galazka
- Institute of Soil Science and Plant Cultivation - State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - Rolf Herzig
- Phytotech Foundation and AGB, Quartiergasse 12, 3013 Bern, Switzerland
| | - Jolien Janssen
- Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - Petra Kidd
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela 15706, Spain
| | - Michel Mench
- INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Univ. Bordeaux, BIOGECO, UMR 1202, F-33600 Pessac, France
| | - Ingo Müller
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden Pillnitz, Germany
| | - Silke Neu
- Saxon State Office for Environment, Agriculture and Geology, Pillnitzer Platz 3, 01326 Dresden Pillnitz, Germany
| | - Nadège Oustriere
- INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Univ. Bordeaux, BIOGECO, UMR 1202, F-33600 Pessac, France
| | - Markus Puschenreiter
- University of Natural Resources and Life Sciences Vienna - BOKU, Department of Forest and Soil Sciences, 3430 Tulln, Austria
| | - Giancarlo Renella
- University of Florence, Department of Agrifood Production and Environmental Sciences, P.le delle Cascine 28, I-50144 Florence, Italy
| | - Pierre-Hervé Roumier
- INRA, UMR1202 BIOGECO, F-33610 Cestas, France and Univ. Bordeaux, BIOGECO, UMR 1202, F-33600 Pessac, France
| | - Grzegorz Siebielec
- Institute of Soil Science and Plant Cultivation - State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
| | - Jaco Vangronsveld
- Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, B-3590 Diepenbeek, Belgium
| | - Nicolas Manier
- INERIS, Expertise and Assays in Ecotoxicology, Parc Technologique Alata, BP2, 60550 Verneuil en Halatte, France
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Cundy AB, Bardos RP, Church A, Puschenreiter M, Friesl-Hanl W, Müller I, Neu S, Mench M, Witters N, Vangronsveld J. Developing principles of sustainability and stakeholder engagement for "gentle" remediation approaches: the European context. J Environ Manage 2013; 129:283-291. [PMID: 23973957 DOI: 10.1016/j.jenvman.2013.07.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/17/2013] [Accepted: 07/22/2013] [Indexed: 06/02/2023]
Abstract
Gentle Remediation Options (GRO) are risk management strategies or techniques for contaminated sites that result in no gross reduction in soil functionality (or a net gain) as well as risk management. Intelligently applied GROs can provide: (a) rapid risk management via pathway control, through containment and stabilisation, coupled with a longer term removal or immobilisation/isolation of the contaminant source term; and (b) a range of additional economic (e.g. biomass generation), social (e.g. leisure and recreation) and environmental (e.g. CO2 sequestration) benefits. In order for these benefits to be optimised or indeed realised, effective stakeholder engagement is required. This paper reviews current sector practice in stakeholder engagement and its importance when implementing GRO and other remediation options. From this, knowledge gaps are identified, and strategies to promote more effective stakeholder engagement during GRO application are outlined. Further work is required on integrating stakeholder engagement strategies into decision support systems and tools for GRO (to raise the profile of the benefits of effective stakeholder engagement and participation, particularly with sector professionals), and developing criteria for the identification of different stakeholder profiles/categories. Demonstrator sites can make a significant contribution to stakeholder engagement via providing evidence on the effectiveness of GRO under varying site contexts and conditions. Effective and sustained engagement strategies however will be required to ensure that site risk is effectively managed over the longer-term, and that full potential benefits of GRO (e.g. CO2 sequestration, economic returns from biomass generation and "leverage" of marginal land, amenity and educational value, ecosystem services) are realised and communicated to stakeholders.
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Affiliation(s)
- A B Cundy
- School of Environment and Technology, University of Brighton, Brighton, UK.
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11
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Kissel H, Guntermann E, Neu S, Baer K, Kauselmann G. 703 KinaseSwitch: a technology platform for the inducible and reversible inhibition of kinases using chemical genetics in vivo. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71500-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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12
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Handgretinger R, Klingebiel T, Lang P, Schumm M, Neu S, Geiselhart A, Bader P, Schlegel PG, Greil J, Stachel D, Herzog RJ, Niethammer D. Megadose transplantation of purified peripheral blood CD34(+) progenitor cells from HLA-mismatched parental donors in children. Bone Marrow Transplant 2001; 27:777-83. [PMID: 11477433 DOI: 10.1038/sj.bmt.1702996] [Citation(s) in RCA: 239] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2000] [Accepted: 01/02/2001] [Indexed: 12/23/2022]
Abstract
We performed HLA-mismatched stem cell transplantation with megadoses of purified positively selected mobilized peripheral blood CD34(+) progenitor cells (PBPC) from related adult donors in 39 children lacking an otherwise suitable donor. The patients received a mean number of 20.7 +/- 9.8 x 10(6)/kg purified CD34(+) and a mean number of 15.5 +/- 20.4 x 10(3)/kg CD3(+) T lymphocytes. The first seven patients received short term (<4 weeks) GVHD prophylaxis with cyclosporin A, whereas in all the following 32 patients no GVHD prophylaxis was used. In 38 evaluable patients, five patients experienced primary acute GVHD grade I and one patient grade II. In 32 patients, no signs of primary GVHD were seen and GVHD only occurred after T cell add backs. T cell reconstitution was more rapid if the number of transplanted CD34(+) cells exceeded 20 x 10(6)/kg. Of the 39 patients, 15 are alive and well, 13 died due to relapse and 10 transplant-related deaths occurred. We conclude that the HLA barrier can be overcome by transplantation of megadoses of highly purified mismatched CD34(+) stem cells. GVHD can be prevented without pharmacological immunosuppression by the efficient T cell depletion associated with the CD34(+) positive selection procedure. This approach offers a promising therapeutic option for every child without an otherwise suitable donor.
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Affiliation(s)
- R Handgretinger
- Department of Pediatric Hematology/Oncology and Blood Bank, University of Tübingen, Tübingen, Germany
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13
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Schwarze CP, Neu S, Beck J, Mavridou K, Ranke MB, Binder G. Influence of IGF-I and cell density on MDR1 expression in the T-lymphoblastoid cell line CCRF-CEM. Horm Res 2000; 52:192-9. [PMID: 10725785 DOI: 10.1159/000023460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The debate about a direct or indirect effect of GH and IGF-I on the recurrence of malignancy, especially in the case of rhGH therapy in patients with leukemia, is still going on. Recent studies suggested that IGF-I plays a role in drug resistance during anticancer therapy. This resistance to diverse cytotoxic drugs, named multidrug-resistance (MDR), is mainly due to high levels of P-glycoprotein (P-gp). The gene encoding this membrane-associated transporter protein was named MDR1, and increased levels of P-gp are linked to enhanced MDR1 mRNA expression. Our aim was to investigate a possible effect of rhIGF-I on MDR1 gene expression in vitro. We cultured the T-lymphoblastoid cell line CCRF-CEM with different rhIGF-I concentrations (0, 5, 20 and 50 ng/ml) in serum-free medium for 3 days. CCRF-CEM cells are drug-sensitive and express MDR1 at low levels. MDR1 mRNA expression was measured by semiquantitative RT-PCR using a competitive assay with a heterologous DNA construct. In addition, GAPDH mRNA was amplified as an internal control for RNA integrity. P-gp activity was determined by a flow cytometric assay measuring rhodamine 123 accumulation. Furthermore, cell proliferation was monitored in all experiments. Our data do not support an effect of rhIGF-I on MDR1 mRNA expression, P-gp activity or cell proliferation in the CCRF-CEM cell line. MDR1 mRNA levels were inversely correlated to cell density with high significance (p < 0.0001). In conclusion, multidrug resistance linked to P-gp is not induced by IGF-I in CCRF-CEM cells. At high density, CCRF-CEM cells downregulate MDR1 gene expression. Our experimental model provides a very useful tool for monitoring the influence of growth factors on multidrug resistance in vitro.
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Affiliation(s)
- C P Schwarze
- University Children's Hospital Tübingen, Germany
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14
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Gessler P, Neu S, Brockmann Y, Speer CP. Decreased mRNA expression of G-CSF receptor in cord blood neutrophils of term newborns: regulation of expression by G-CSF and TNF-alpha. Biol Neonate 2000; 77:168-73. [PMID: 10729720 DOI: 10.1159/000014212] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Granulocyte colony-stimulating factor (G-CSF) promotes neutrophil production and enhances neutrophil function. The effects of G-CSF are mediated by binding to its receptor. Since neutrophils are an essential part of the neonatal host defense system, we studied G-CSF receptor expression in neonatal neutrophils. We determined protein and mRNA expression of G-CSF receptor in freshly isolated neutrophils from cord blood of healthy term newborns (n = 16) and of adults (n = 6) as well as the in vitro effect of supplemented recombinant human G-CSF (rhG-CSF) and tumor necrosis factor-alpha (TNF-alpha) on G-CSF receptor expression of neutrophils. Expression of G-CSF receptor on the surface of neutrophils of cord blood was significantly lower compared to adults (61 +/- 6 vs. 89 +/- 2%). G-CSF receptor mRNA transcripts of neutrophils from newborns compared to adults was lower, too (77 +/- 14 vs. 152 +/- 33%). Neutrophils isolated from cord blood showed a decrease of G-CSF receptor expression within 24 h of culture. Moreover, we were able to show that supplemented rhG-CSF is necessary for maintenance of G-CSF receptor expression. TNF-alpha, however, down-regulated G-CSF receptor expression. We conclude that low protein and mRNA expression of G-CSF receptor in neutrophils of neonates compared to adults may adversely affect granulopoiesis and neutrophil functions by decreased responsiveness to G-CSF. Furthermore, G-CSF receptor expression on neutrophils was modified not only by G-CSF itself, but also by TNF-alpha.
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Affiliation(s)
- P Gessler
- University Children's Hospital, Department of Neonatology, Tübingen, Germany.
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15
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Lang P, Schumm M, Taylor G, Klingebiel T, Neu S, Geiselhart A, Kuci S, Niethammer D, Handgretinger R. Clinical scale isolation of highly purified peripheral CD34+progenitors for autologous and allogeneic transplantation in children. Bone Marrow Transplant 1999; 24:583-9. [PMID: 10490722 DOI: 10.1038/sj.bmt.1701961] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We present our experience with three clinical scale isolation methods for positive selection of CD34+ progenitors from peripheral blood for autologous and allogeneic transplantation in children. A combination of the CellPro device and the Magnetic Activated Cell Sorting system (MACS), as well as two different combinations of MACS systems were used (VarioMACS-SuperMACS and SuperMACS-SuperMACS). With the CellPro-MACS combination (16 separations), a median purity of 96.2% and a median recovery of 42% CD34+ cells could be achieved, whereas the two step MACS systems (55 and 29 separations) showed a median purity of 97.6% and 98.0% and a median recovery of 96.5% and 97%, respectively. Depletion of T cells was profound (4-5 log). A total of 34 patients in the autologous and 18 patients in the allogeneic setting have been transplanted with highly enriched CD34+ cells, obtained by these methods. Only one patient failed to engraft, all other patients showed a rapid and sustained hematological engraftment with the longest follow-up of 3 years. In summary, especially the two step MACS systems have proven to be appropriate tools for enrichment of CD34+ cells, yielding both high purity and good recovery, and can thus be used for tumor cell purging in the autologous setting and for effective T cell depletion in the allogeneic setting.
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Affiliation(s)
- P Lang
- Children's University Hospital, University of Tuebingen, Germany
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16
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Gessler P, Neu S, Nebe T, Speer CP. Granulocyte colony-stimulating factor receptor expression on neutrophils of term and preterm neonates with and without signs of infection. Eur J Pediatr 1999; 158:497-500. [PMID: 10378400 DOI: 10.1007/s004310051129] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
UNLABELLED Neutrophils are an essential component of the human host defence system against infection. Recombinant human granulocyte colony-stimulating factor induces neutrophilia and enhances effector functions of mature neutrophils. Since the biological effects of granulocyte colony-stimulating factor (G-CSF) are mediated by its receptor, we investigated the expression of G-CSF receptor on the surface of neutrophils of term and preterm neonates (n = 22) with and without signs of infection and of healthy adults (n = 13) by flow cytometry. In healthy adults, the percentage of neutrophils expressing G-CSF receptor was higher compared to cord blood of term and preterm neonates (87% vs 53%, P < 0.05). Between 2 and 32 h of life, neonates with signs of infection showed lower values of G-CSF receptor expression compared to neonates without signs of infection (32% vs 54%, P < 0.05). No correlation was detectable between expression of G-CSF receptor and gestational age. CONCLUSION Expression of granulocyte colony-stimulating factor receptor on neutrophils is lower than in adults. This may adversely affect granulopoiesis and neutrophil function during the neonatal period. Moreover, granulocyte colony-stimulating factor receptor expression seems to be down-regulated during neonatal infection.
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Affiliation(s)
- P Gessler
- Department of Neonatology, University Children's Hospital, Tübingen, Germany
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17
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Baur FM, Brenner B, Goetze-Speer B, Neu S, Speer CP. Natural porcine surfactant (Curosurf) down-regulates mRNA of tumor necrosis factor-alpha (TNF-alpha) and TNF-alpha type II receptor in lipopolysaccharide-stimulated monocytes. Pediatr Res 1998; 44:32-6. [PMID: 9667367 DOI: 10.1203/00006450-199807000-00005] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We have previously shown that Curosurf, a natural porcine surfactant, and its phospholipids effectively suppressed secretion of tumor necrosis factor (TNF-alpha) by resting and through lipopolysaccharide (LPS)-stimulated human monocytes. In this study the effect of Curosurf on monocyte mRNA for TNF-alpha and TNF-alpha type II-receptor (TNF-alpha-RII) were analyzed to evaluate the cellular mechanisms involved in the modulation of TNF-alpha expression. LPS-stimulated monocytes simultaneously exposed to Curosurf (500 microg/mL for 24 h) expressed approximately 70% less TNF-alpha mRNA when compared with control subjects (p < 0.05). In addition, 86% less TNF-alpha RII mRNA was found in monocytes exposed to Curosurf (p < 0.001). Decreased mRNA expression was clearly associated with significantly reduced secretion of TNF-alpha protein (Curosurf-exposed LPS-stimulated monocytes 3628 +/- 1873 pg/mL TNF, LPS-stimulated monocytes 31,376 +/- 2524 pg/mL TNF; mean +/- SEM, p < 0.001). The activation of the transcription factor nuclear factor-kappaB upon LPS stimulation is not affected by Curosurf incubation. This excludes that the decrease in mRNA and protein levels of TNF-alpha and TNF-alpha-RII is due to an inhibition of nuclear factor-kappaB activation by Curosurf. We conclude that Curosurf affects TNF-alpha release of LPS-stimulated monocytes at a pretranslational site by down-regulating both mRNA for TNF-alpha and TNF-alpha-RII, therefore acting as an anti-inflammatory agent within alveolar space.
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Affiliation(s)
- F M Baur
- Department of Neonatology, Children's Hospital, University of Tuebingen, Germany
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18
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Handgretinger R, Lang P, Schumm M, Taylor G, Neu S, Koscielnak E, Niethammer D, Klingebiel T. Isolation and transplantation of autologous peripheral CD34+ progenitor cells highly purified by magnetic-activated cell sorting. Bone Marrow Transplant 1998; 21:987-93. [PMID: 9632271 DOI: 10.1038/sj.bmt.1701228] [Citation(s) in RCA: 98] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Peripheral stem cells were mobilized and collected in 26 pediatric patients with malignant diseases. A total of 47 leukaphereses were performed in the 26 patients. The mean number of nucleated cells collected was 4.5 +/- 2.6 x 10(8)/kg and the number of CD34+ progenitors collected was 6.7 +/- 6.8 x 10(6)/kg. CD34-positive selection was performed using a two-step method of magnetic-activated cell sorting (MACS) in 24 patients or a combination of an immunoaffinity column and MACS in two patients. The purity of the positively selected CD34+ progenitors was 98.8 +/- 0.7% and the number of isolated CD34+ cells was 6.5 +/- 5.9 x 10(6)/kg. Thus, the mean recovery of CD34+ cells was 93 +/- 10%. In 22 of the 26 patients, high-dose chemotherapy was performed with subsequent reinfusion of the highly purified CD34+ cells. In all 22 patients, a normal hematopoietic reconstitution was seen with a mean time of 12.4 +/- 2.7 days to reach >0.5 x 10(9)/l neutrophils (range 8-19 days). The time to reach independence from platelet transfusion was 31.6 +/- 17.0 days (range 16-78 days). There were no transplant-related deaths. In summary, we have shown that mobilized peripheral CD34+ progenitors can be highly purified with a good recovery, and that reinfusion of these cells after high-dose chemotherapy results in a rapid, complete and sustained engraftment. We conclude that this method can be used for purging in any CD34-negative malignancies and for autologous T and B cell depletion in the treatment of autoimmune diseases with high-dose immunoablative therapy.
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Affiliation(s)
- R Handgretinger
- Children's University Hospital, University of Tuebingen, Germany
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19
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Kuçi S, Taylor G, Neu S, Schumm M, Niethammer D, Handgretinger R. Phenotypic and functional characterization of mobilized peripheral blood CD34+ cells coexpressing different levels of c-Kit. Leuk Res 1998; 22:355-63. [PMID: 9669840 DOI: 10.1016/s0145-2126(98)00002-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this report we evaluated the exact expression pattern of c-Kit on mobilized peripheral blood (PB) CD34+ cells. Using a monoclonal antibody against CD117 antigen (95C3), flow cytometric analysis revealed that approximately 25% of the mobilized PB CD34+ cells coexpress c-Kit. This cell fraction showed a considerable heterogeneity with respect to c-Kit expression, consisting of a small fraction with high levels of c-Kit (4.2%) (CD34+/CD117high fraction) and a larger proportion of cells expressing low levels of this antigen (21.0%) (CD34+/CD117low fraction). Clonogenic assays showed that CD34+/CD117high cell fraction consisted almost exclusively of erythroid progenitors, in contrast to CD34+/CD117low cell subset which gave rise mostly to granulocyte-monocyte colonies. The majority of CFU-GEMM and the most primitive week 6 cobblestone area forming cells (CAFCs) segregated in the CD34+/CD117low cell subset, suggesting the highest content of multipotential progenitors within this cell fraction. None of the sorted cell subsets was able to produce reactive oxygen intermediates (ROI). However, ex vivo expansion of the sorted subsets with interleukin 3, stem cell factor and FLT3 ligand for 2 weeks resulted in a significant production of O2- and H2O2/HOCl by CD34+/CD117low cell fraction, compared to the same sorted but not expanded counterparts. According to the major content of multipotential hematopoietic progenitors and highest capacity to generate sufficient amounts of ROI after ex vivo expansion, we suggest that CD34+/CD117low cell subset would be one of the most potential candidates for transplantation in patients with acute lymphoblastic leukemia, which lack c-Kit antigen expression.
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Affiliation(s)
- S Kuçi
- University Children's Hospital, Department of Hematology/Oncology, Tuebingen, Germany.
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20
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Geiselhart A, Neu S, Buchholz F, Lang P, Niethammer D, Handgretinger R. Positive selection of CD56+ lymphocytes by magnetic cell sorting. Nat Immun 1997; 15:227-33. [PMID: 9390271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A new method for the isolation of CD56+ lymphocytes from peripheral mononuclear blood cells is described. Magnetic microbeads conjugated to goat antimouse antiserum in combination with a murine monoclonal anti-CD56 antibody were coated to the CD56+ target cells. CD56+ cells were then isolated with the use of a magnetic cell sorter. The purity of the CD56+ cells was 98.4 +/- 1% (n = 12) with a recovery of the CD56+ lymphocytes of 57.2 +/- 9% (range 48-77%). The natural killer, activity of the CD56+ lymphocytes as well as the interleukin-2-induced proliferative response were not affected by the isolation procedure or the presence of the magnetic microbeads on the CD56+ cells. The described method might be a useful tool for the further characterization of CD56+ cells and their subsets and can easily be upgraded for clinical use in adoptive immunotherapy with CD56+ lymphocytes.
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Affiliation(s)
- A Geiselhart
- University Children's Hospital, Department of Hematology/Oncology, Tübingen, Germany
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21
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Schaich M, Neu S, Beck J, Gekeler V, Schuler U, Ehninger G. A novel method for direct and fluorescence independent determination of drug efflux out of leukemic blast cells. Leuk Res 1997; 21:933-40. [PMID: 9403004 DOI: 10.1016/s0145-2126(97)00052-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Multi drug resistance (MDR) is often due to an increased efflux of anti cancer drugs out of leukemic blast cells. Efflux assays are used to get an impression of functional resistance in those cells. Dyes like rhodamine 123 or 3'3'-diethyloxocarbocyanine iodide are commonly used for this purpose. A major known disadvantage is that dyes do not behave like cytotoxic drugs in efflux experiments. Assays using the self fluorescence of drugs like anthracyclines can not reveal a real impression of intracellular or effluxed drug due to quenching of the drug fluorescence in the nuclei of the cells. We have developed a reproducible and sensitive assay for direct and quantitative determination of drug efflux out of blast cells. This was done by a novel double radioactive labelling using a 3H-labelled drug and 14C-labelled sucrose as extracellular marker. So this assay can be applied to every drug of interest. Quenching of fluorescence is also by-passed with this technique as well as protracting washing or silicon oil procedures. As a model system we used the T-lymphoblastoid cell line CCRF CEM and its resistant sublines vincristine 100 and adriamycin 5000. The results were also transferable to clinical specimens of leukemic patients. In conclusion our assay may be used for precise and direct efflux measurement of a broad range of anti-cancer drugs in clinical MDR evaluation.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/analysis
- ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics
- Adult
- Aged
- Aged, 80 and over
- Antineoplastic Agents/therapeutic use
- Drug Resistance, Multiple
- Drug Resistance, Neoplasm
- Female
- Flow Cytometry
- Fluorescence
- Fluorescent Dyes
- Humans
- Leukemia, Myeloid/drug therapy
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myelomonocytic, Acute/drug therapy
- Male
- Middle Aged
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy
- RNA, Messenger/analysis
- Rhodamine 123
- Rhodamines
- Tumor Cells, Cultured
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Affiliation(s)
- M Schaich
- Medizinische Klinik I, Universitätsklinikum, Dresden, Germany
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22
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Neu S, Geiselhart A, Sproll M, Hahn D, Kuçi S, Niethammer D, Handgretinger R. Expression of CD44 isoforms by highly enriched CD34-positive cells in cord blood, bone marrow and leukaphereses. Bone Marrow Transplant 1997; 20:593-8. [PMID: 9337062 DOI: 10.1038/sj.bmt.1700940] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
CD34-positive cells were isolated from cord blood (n = 8), bone marrow (n = 4) and leukapheresed material (n = 7), using an immunomagnetic isolation technique, MACS (Miltenyi Biotec, Bergisch Gladbach, Germany). In flow cytometric analysis, cell populations after enrichment revealed a fraction of 96.1% (cord blood), 96.2% (bone marrow) and 98.6% (leukapheresis material) CD34-positive cells. Cells were further stained with antibodies specific for CD44 isoforms: CD44s (SFF-2), CD44v5 (VFF-8) and CD44v6 (VFF-18). CD44-positive cells were detected by directly (FITC, fluorescein isothiocyanate) or indirectly (streptavidin-PE, phycoerythrin)-conjugated fluorochromes in flow cytometric analysis. Analysis was restricted to CD34-positive cells. A high expression of CD44s was noted in all kinds of material under investigation with mean values in the range of 98.6-100%. There was little expression of CD44v6 (mean values in the range of 1.5-3.6%) and very slight expression of CD44v5 (mean values in the range of 0.6-1.4%). The finding that CD34-positive hematopoietic stem cells express CD44v5 and CD44v6 to a very small extent offers the possibility of using antibodies specific to CD44v5 and CD44v6 in immunopurging in the course of autologous stem cell transplantation.
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Affiliation(s)
- S Neu
- Children's Hospital, University of Tübingen, Germany
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23
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Rappold I, Ziegler BL, Köhler I, Marchetto S, Rosnet O, Birnbaum D, Simmons PJ, Zannettino AC, Hill B, Neu S, Knapp W, Alitalo R, Alitalo K, Ullrich A, Kanz L, Bühring HJ. Functional and phenotypic characterization of cord blood and bone marrow subsets expressing FLT3 (CD135) receptor tyrosine kinase. Blood 1997; 90:111-25. [PMID: 9207445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The class III receptor tyrosine kinase FLT3/FLK2 (FLT3; CD135) represents an important molecule involved in early steps of hematopoiesis. Here we compare cell-surface expression of FLT3 on bone marrow (BM) and cord blood (CB) cells using monoclonal antibodies (MoAbs) specific for the extracellular domain of human FLT3. Flow cytometric analysis of MACS-purified BM and CB cells showed that 63% to 82% of BM CD34+ and 88% to 95% of the CB CD34+ cells coexpress FLT3. Clonogenic assays and morphological characterization of FACS-sorted BM CD34+ cells demonstrate that colony-forming unit-granulocyte-macrophage (CFU-GM) and immature myelo-monocytic precursor cells are enriched in the subpopulation staining most brightly with the FLT3 MoAb whereas the majority of the burst-forming units-erythroid (BTU-E) and small cells with lymphoid morphology are found in the FLT3- population. In contrast, statistically indistinguishable proportions of CFU-granulocyte-erythrocyte-megakaryocyte-macrophage (CFU-GEMM) and more primitive cobblestone area forming cells (CAFC) were detected in both fractions, albeit the FLT3+ fraction consistently showed more CAFC activity than the FLT3- fraction. Although in both, BM and CB the majority of CD34+CD117+ (KIT+), CD34+CD90+ (Thy-1+), and CD34+CD109+ cells coexpress FLT3, three-color phenotypic analyses are consistent with the functional findings and suggest that the most primitive cells defined as CD34+CD38-, CD34+CD71low, CD34+HLA-DR-, CD34+CD117low, CD34+CD90+, and CD34+CD109+ express low levels of cell-surface FLT3 and were therefore not enriched to a statistically significant extent with the bright versus negative sorting scheme. Thus, clear segregation of the most primitive progenitors from BM CD34+ cells was confounded by low apparent levels of FLT3 cell-surface expression on these cells, whereas myeloid progenitors unambiguously segregated with the FLT3 brightest cells and erythroid progenitors with the FLT3 dimmest. Additional phenotypic analyses using MoAbs against progenitor/stem cell markers including the mucinlike molecule MGC-24v (CD164), the receptor tyrosine kinases TIE, FMS (CD115), and KIT (CD117) further illustrate the differences in surface antigen expression profiles of BM and CB CD34+ cells. Notably, CD115 is rarely detected on CB CD34+ cells, whereas 20% to 25% of the BM CD34+FLT3+ cells are CD115+. Furthermore, 80% to 95% of the CB CD34+CD117+ but only 60% to 75% of the BM CD34+CD117+ cells coexpress FLT3. Only a negligible amount of CD34+CD19+ are detected in CB, while in BM 20% to 30% of CD34+CD19+ presumed pro/pre-B cells coexpress FLT3. In contrast, the majority of the CD34+CD164+ and CD34+TIE+ subsets in both CB and BM coexpress FLT3. Analysis of unseparated cells showed that FLT3 expression is not restricted to CD34+ subsets. About 65% to 70% of lymphocyte-gated BM CD34-FLT3+ cells are positive for the monocytic marker CD115 whereas 25% to 30% of these cells consist of CD10 expressing B-cell precursors. Finally, CD34- monocytes in BM, CB, and PB express FLT3 whereas granulocytes are FLT3-. Our data show that detectable FLT3 appears first at low levels on the surface of primitive multilineage progenitor cells and disappears during defined stages of B-cell development, but is upregulated and maintained during monocytic maturation.
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Affiliation(s)
- I Rappold
- Department of Medicine, University of Tübingen, Germany
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Abstract
Mononuclear cells derived from cord blood were stained using the CD1 17-specific, fluorochrome-labeled monoclonal mouse antibody 95C3. Additional staining was performed using an isotype-specific rat-anti-mouse antibody, labeled with supermagnetic microparticles. Target cells were enriched by the technique of magnetic cell separation, MACS. The resulting cell population contained 96.5% (+/-1.7% S.D.) CD1 17-expressing cells (n = 12) with different levels of CD117 antigen expression. Using flow cytometry, two cell populations differing in size were found. A majority (93%) of cells with high forward scatter revealed a phenotype positive for CD117 and CD34. Isolated cells revealed a high fraction of hematopoietic progenitors (16%). The technique presented allows for an alternative approach of stem cell enrichment and might be useful in autologous transplantation of cells with hematopoietic properties.
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Affiliation(s)
- S Neu
- Children's Hospital, University of Tübingen, Germany
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25
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Abstract
Dialysis was discontinued in 155 (9 percent) of 1766 patients being treated for end-stage renal disease, accounting for 22 percent of all deaths. Treatment was withdrawn more frequently in older than in younger non-diabetic patients, and more often in young diabetic patients than in young nondiabetic patients. Withdrawal was twice as common in nondiabetic patients with other degenerative disorders (P less than 0.005); in patients receiving intermittent peritoneal dialysis (P less than 0.025); and in patients living in nursing homes (P less than 0.025). Half the patients were competent when the decision to withdraw was made, and 39 percent of this group had no new preceding medical complications. Among incompetent patients, the physician initiated the decision for withdrawal in 73 percent, and the patient's family in 27 percent; all patients had recent medical complications. In the early 1970s the physician initiated the decision in 66 percent of all patients; in the early 1980s this figure had decreased to 30 percent (P less than 0.0005). We conclude that stopping treatment is a common mode of death in patients receiving long-term dialysis, particularly in those who are old and those who have complicating degenerative diseases. Because of the increasing age of patients on dialysis, withdrawal of treatment will probably become more common in the future.
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Abstract
Focal brain edema limited to one cerebral hemisphere was produced by ultraviolet irradiation of the exposed cortex. Tissue water content was determined by the gravimetric method which allows microsampling. Therefore, the spread of edema around the small necrotic area could be mapped more precisely than by determination of dry weight which calls for larger samples. As early as 30 min following irradiation, hyperemia and swelling of the brain are observed under the operating microscope. This correlates with venous stasis, hyperemia, and broadened perivascular spaces around venules and large capillaries accompanied by a marked rise in the specific weight of the tissue. After 4 h an edema front can be observed spreading from the perinecrotic zone in which there is a marked rise in endothelial cell vesicular activity. Edema reaches maximum levels in the deep white matter at 48 h post irradiation with normalisation of the tissue water content after 96 h. The velocity at which the edema front spreads from the cortex to the periventricular area lies in the range of 0.25 mm/hr. Edema reabsorption coincides with signs of retrograde micropinocytosis in endothelial cells.
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