ACTIVITY activity spectrum | association with Pen/Strep | cytotoxicity

 

ANTIMICROBIAL ACTIVITY SPECTRUM OF PLASMOCIN:

The in vitro antimicrobial activity of Plasmocin tested against different mycoplasma, Gram+ bacteria, Gram– bacteria and fungi is reported in the following table.
To eradicate mycoplasmal contamination, using Plasmocin at 25 µg/ml for two weeks is advised.

Sensitive
under 1 µg/ml
Sensitive
from 0.5 to 25 µg/ml
Resistant
 
Slow growing microbial contaminants
Fast growing microbial contaminants
     
Mollicutes:
mycoplasmas & acholeplasmas

M. arginini ATCC 23838
M. fermentans ATCC 19989
M. hyorhinis ATCC 17981
M. bovis NCTC 10131
M. orale ATCC 23714
A. laidlawii ATCC 23206

Bacteria:
strains from ATCC or isolated from clinical or environmental samples

Staphylococcus aureus
   ATCC 25923
Enterococcus faecium
Bacillus subtilis
Lactobacillus casei ATCC 393
Lactobacillus plantarum

Escherichia coli
Enterobacter cloacae
Citrobacter freundii
Klebsiella pneumoniae
Morganella morganii

Pseudomonas aeruginosa
   (wild strains)

Yeasts:
strains from ATCC or isolated from clinical samples

Candida albicans
Candida tropicalis
Candida parapsilosis
Saccharomyces cerevisiae
   ATCC 32119

Molds

 

ASSOCIATION with PEN / STREP :

Plasmocin is compatible with penicillin/streptomycin solutions. Plasmocin can be added to penicillin / streptomycin preparations in order to expand the activity spectrum of this mixture, especially against mycoplasmas.

 

CYTOTOXICITY :

Various cell-types have been propagated in Plasmocin-supplemented media without apparent cytotoxic effect:

  • Adenocarcinoma
  • Breast cancer
  • Human colon carcinoma
  • Human glioblastoma
  • Leukemia
  • Lung carcinoma
  • Melanoma, skin carcinoma
  • Pancreatic cancer
  • Prostate carcinoma
  • Chondrocytes
  • Fibroblasts, human foreskin fibroblasts
  • Human adrenal cortex
  • T-cell clones
  • Adult stem cell lines
  • Mouse embryonic stem cells
  • Rat pituitary
  • Bi-color damselfish cell lines
  • Hybridomas

 

Examples of cell lines propagated in Plasmocin™ supplemented media

Cell lines propagated with a permanent adjonction of Plasmocin™ at 2.5µg/ml
293
HeLa
MCF-7
HepG2
PC-3
K562
Jurkat
B16
C2C12
PC 1.0
C6
Tranformed primary embryonal kidney
Epitheloid carcinoma
Breast adenocarcinoma
Hepatocellular carcinoma
Prostate adenocarcinoma
Chronic myelogenous leukemia
Acute T cell leukemia
Melanoma
Muscle myoblast
Pancreas adenocarcinoma
Glial tumor
Human
Human
Human
Human
Human
Human
Human
Mouse
Mouse
Hamster
Rat
     
Cell lines successfully treated with Plasmocin™ at 25µg/ml for 2 weeks.
MF61
MF116
RF-48
RF-1
COS-1
COS-7
BALB/c
NIH/3T3
Hybridoma(anti ovarian carcinoma)
Hybridoma(anti ovarian carcinoma)
Metastatic gastric adenocarcinoma
Gastric adenocarcinoma
Kidney, SV40 transformed
Kidney, SV40 transformed
Fibroblast
Embryo,contact inhibited
Human
Human
Human
Human
Monkey
Monkey
Mouse
Mouse

 

To date, no data on toxicity of Plasmocin to cell lines being treated have been reported.
However, it must be noted that at high concentrations of Plasmocin, slowdown of cell growth rate may be observed. Nevertheless, when Plasmocin is removed from culture medium or when Plasmocin is used at a lower concentration, cells rapidly get back to their normal growth rate.