ASTM E1532-00(2006)
(Practice)Standard Practice for Detection of Mycoplasma Contamination of Cell Cultures by Use of Bisbenzamide DNA-Binding Fluorochrome (Withdrawn 2014)
Standard Practice for Detection of Mycoplasma Contamination of Cell Cultures by Use of Bisbenzamide DNA-Binding Fluorochrome (Withdrawn 2014)
SIGNIFICANCE AND USE
Mycoplasma hyorhinis, cultivar α strains (1)3 do not grow on any of the standard media used for mycoplasma cultivation. These strains, which are found as contaminants in cell cultures, are detected by indirect methods.
A specialized medium has been described but it is not yet in wide use (2).
This practice should be used in conjunction with Practice E 1531.
All cell cultures to be examined for mycoplasma should undergo a minimum of two passages in antibiototic-free tissue culture medium before testing.
SCOPE
1.1 This practice covers the use of cell cultures and DNA-binding flurorochrome techniques to detect mycoplasma contamination of cell cultures.
1.2 This practice does not cover axenic cultivation or identification of mycoplasmas.
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.
WITHDRAWN RATIONALE
This practice covers the use of cell cultures and DNA-binding flurorochrome techniques to detect mycoplasma contamination of cell cultures.
Formerly under the jurisdiction of Committee E55 on Manufacture of Pharmaceutical Products, this practice was withdrawn in August 2014. This standard was withdrawn without replacement due to its limited use by the industry.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E1532 − 00(Reapproved 2006)
Standard Practice for
Detection of Mycoplasma Contamination of Cell Cultures by
Use of Bisbenzamide DNA-Binding Fluorochrome
This standard is issued under the fixed designation E1532; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope cultivation. These strains, which are found as contaminants in
cell cultures, are detected by indirect methods.
1.1 This practice covers the use of cell cultures and DNA-
binding flurorochrome techniques to detect mycoplasma con- 4.2 A specialized medium has been described but it is not
tamination of cell cultures.
yet in wide use (2).
1.2 This practice does not cover axenic cultivation or
4.3 This practice should be used in conjunction with Prac-
identification of mycoplasmas.
tice E1531.
1.3 This standard does not purport to address all of the
4.4 Allcellculturestobeexaminedformycoplasmashould
safety concerns, if any, associated with its use. It is the
undergo a minimum of two passages in antibiototic-free tissue
responsibility of the user of this standard to establish appro-
culture medium before testing.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Indicator Cell Cultures
5.1 BHK-21, 3T6, and Vero are the most widely used
2. Referenced Documents
indicator cell cultures. BHK 21 are maintained as monolayer
2.1 ASTM Standards:
cultures, which are trypsinized to prepare, cell suspensions as
E1531PracticeforDetectionofMycoplasmaContamination
needed (4-6).
of Cell Cultures by Growth on Agarose Medium
5.2 Fetal bovine is heat inactivated at 56°C for 30 minutes
before it is used in cell culture medium.
3. Terminology
5.3 Place previously sterilized 11 × 22-mm coverslips in a
3.1 Definitions:
10 × 35-mm plastic culture dishes.
3.1.1 axenic cultivation, n—cultivation free from other liv-
ing organisms.
5.4 Add 3.8 mL of cell suspension to each dish. The
3.1.2 direct mycoplasma detection, n—demonstration of suspension should be dilute enough so that the resulting
characteristic colonial growth on axenic agar medium. monolayer is subconfluent in 2 to 3 days. Growth medium is
replaced and the coverslip cultures are ready for use.
3.1.3 mycoplasma (Mollicute), n—smallest prokaryotes ca-
pable of self replication.
5.5 Inoculate 0.1 mL of sample into each culture dish.
5.6 For positive control, inoculate two dishes with M.
4. Significance and Use
hyorhinis, strain DBS 1050 (ATCC 29052).Additional control
4.1 Mycoplasma hyorhinis, cultivar α strains (1) do not
strains of M. orale or M. pirum are useful.
grow on any of the standard media used for mycoplasma
5.7 Two uninoculated dishes serve as negative controls.
6. Materials for Staining
This practice is under the jurisdiction of ASTM Committee E55 on Manufac-
ture of Pharmaceutical Products and is the direct responsibility of Subcommittee
6.1 Carnoy’s Fixative—Mix one part glacial acetic acid
E55.04 on General Biopharmaceutical Standards.
with three parts methanol. This fixative may be made in
Current edition approved Nov. 1, 2006. Published December 2006. Originally
approved in 1993. Last previous edition approved in 2000 as E1532–00. DOI: advance and stored at room temperature.
10.1520/E1532-00R06.
2 6.2 McIlvane’s Citrate-Phosphate Buffer, pH 5.5:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2.1 0.1 M Citric Acid Monohydrate (MW 210.14)—Add
Standards volume information, refer to the standard’s Document Summary page on
21 g to 1000 mL of deionized water.
the ASTM website.
6.2.2 0.2 M Dibasic Sodium Phosphate (MW 141.96)—Add
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof
this standard. 34.08 g to 1200 mL of deionized water.
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E1532 − 00 (2006)
6.2.3 For working solution, combine 572 mL of 0.2 M 7.7 Wash with distilled water, then air dry.
dibasic sodium phosphate with 450 mL of 0.1 M citric acid.
7.8 Mount preparations by placing each coverslip (cell side
6.2.4 Store buffer at 2 to 8°C.
up) onto a drop of mountan
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