ASTM E1881-06
(Guide)Standard Guide for Cell Culture Analysis with SIMS
Standard Guide for Cell Culture Analysis with SIMS
SIGNIFICANCE AND USE
The presence of cell growth medium complicates a direct analysis of cells with SIMS. Attempts to wash out the nutrient medium results in the exposure of cells to unphysiological reagents that may also alter their chemical composition. This obstacle is overcome by using a sandwich freeze-fracture method (1). This cryogenic method has provided a unique way of sampling individual cells in their native state for SIMS analysis.
The procedure described here has been successfully used for imaging Na+ and K+ ion transport (3), calcium alterations in stimulated cells (4,5), and localization of therapeutic drugs and isotopically labeled molecules in single cells (6). The frozen freeze-dried cells prepared according to this method have been checked for SIMS matrix effects (7). Ion image quantification has also been achieved in this sample type (8).
The procedure described here is amenable to a wide variety of cell cultures and provides a way for studying the response of individual cells for chemical alterations in the state of health and disease and localization of isotopically-labeled molecules and theraputic drugs in cell culture models.
SCOPE
1.1 This guide provides the Secondary Ion Mass Spectrometry (SIMS) analyst with a cryogenic method for analyzing individual tissue culture cells growing in vitro. This guide is suitable for frozen-hydrated and frozen-freeze-dried sample types. Included are procedures for correlating optical, laser scanning confocal and secondary electron microscopies to complement SIMS analysis.
1.2 This guide is not suitable for cell cultures that do not attach to the substrate.
1.3 This guide is not suitable for any plastic embedded cell culture specimens.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: E1881 − 06
StandardGuide for
1
Cell Culture Analysis with SIMS
This standard is issued under the fixed designation E1881; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope substrate, such as silicon. When cells reach about 80 %
confluency, they are fast frozen and fractured by using a
1.1 This guide provides the Secondary Ion Mass Spectrom-
4
sandwich method (1). This allows freeze-fixation of cellular
etry (SIMS) analyst with a cryogenic method for analyzing
contents and removal of the EF-leaflet of the apical plasma
individual tissue culture cells growing in vitro. This guide is
membrane. Since this kind of fracture occurs in groups of cells
suitable for frozen-hydrated and frozen-freeze-dried sample
growing together, fractured cells are easily recognized for
types. Included are procedures for correlating optical, laser
optical, SEM and SIMS imaging.
scanning confocal and secondary electron microscopies to
complement SIMS analysis. 4.2 By correlative laser scanning confocal microscopy and
SIMS, the same frozen freeze-dried cell can be analyzed for
1.2 This guide is not suitable for cell cultures that do not
organelle localization in relation to elemental content (2).
attach to the substrate.
1.3 This guide is not suitable for any plastic embedded cell
5. Significance and Use
culture specimens.
5.1 The presence of cell growth medium complicates a
1.4 This standard does not purport to address all of the
direct analysis of cells with SIMS. Attempts to wash out the
safety concerns, if any, associated with its use. It is the
nutrient medium results in the exposure of cells to unphysi-
responsibility of the user of this standard to establish appro-
ological reagents that may also alter their chemical composi-
priate safety and health practices and determine the applica-
tion. This obstacle is overcome by using a sandwich freeze-
bility of regulatory limitations prior to use.
fracture method (1). This cryogenic method has provided a
uniquewayofsamplingindividualcellsintheirnativestatefor
2. Referenced Documents
SIMS analysis.
2
2.1 ASTM Standards:
5.2 The procedure described here has been successfully
E673 Terminology Relating to SurfaceAnalysis (Withdrawn
+ +
used for imaging Na and K ion transport (3), calcium
3
2012)
alterations in stimulated cells (4,5), and localization of thera-
peutic drugs and isotopically labeled molecules in single cells
3. Terminology
(6). The frozen freeze-dried cells prepared according to this
3.1 Definitions:
method have been checked for SIMS matrix effects (7). Ion
3.1.1 SeeTerminology E673 for definitions of terms used in
imagequantificationhasalsobeenachievedinthissampletype
SIMS.
(8).
5.3 The procedure described here is amenable to a wide
4. Summary of Guide
variety of cell cultures and provides a way for studying the
4.1 This guide describes a cryogenic freeze-fracture method
response of individual cells for chemical alterations in the state
of sample preparation for cell culture specimens for SIMS
of health and disease and localization of isotopically-labeled
analysis. In brief, cell cultures are grown on a conducting
molecules and theraputic drugs in cell culture models.
6. Apparatus
1
This guide is under the jurisdiction of ASTM Committee E42 on Surface
Analysis and is the direct responsibility of Subcommittee E42.06 on SIMS.
6.1 This guide can be used for the analysis of cell cultures
Current edition approved Nov. 1, 2006. Published November 2006. Originally
with virtually any SIMS instrument.
approved in 1997. Last previous edition approved in 2002 as E1881 – 97 (2002).
DOI: 10.1520/E1881-06.
6.2 A cold stage in the SIMS instrument is needed to
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
analyze frozen-hydrated specimens (9).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
The last approved version of this historical standard is referenced on The boldface numbers in parentheses refer to a list of references at the end of
www.astm.org. this guide.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E1881 − 06
7. Procedure fracture removes the extracellular nutrient medium and the
EF-leaflet of the plasma membrane on the top silicon piece (1,
7.1 Cells are grown on silicon wafer pieces (approximately
2 10).Thefracturedcellsonthesiliconsubstratecanbeanalyzed
1cm area) of any sh
...
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