Altogen Custom Research Services: Biology CRO

Generation of Stably Expressing Cell Lines in 28 Days

Altogen Labs offer generation of stable cell lines by transforming your cell line to stably express vector or gene of interest. Plasmid DNA construct should encode at least one antibiotic resistance gene to enable drug selection. Transfected genetic material can be expressed in the target cells either transiently or permanently depending on the methods utilized and the experimental questions being investigated.

RNAi Services

RNA interference (RNAi) is a phenomenon by which the expression of double stranded RNA (dsRNA) specifically stimulates a cellular process that reduces gene expression in a sequence specific manner. Small synthetic RNA, termed small interfering RNAs (siRNA), which are typically 21-28 nucleotides in length, can induce RNAi and knockdown gene expression in mammalian cells without inducing an antiviral response.

MTS/PMS In Vitro Cytotoxicity Assays and IC50 for Tumor Cell Lines

Cytotoxicity Assay

Cytotoxicity assays are based on the cleavage of the yellow terazolium salt (XTT) by metabolically active human cells (HeLa) to form an orange formazan dye. This conversion only occurs in viable cells, so cytotoxicity leads to a loss of activity. The formazan dye formed is soluble in aqueous solutions and is directly quantified using a scanning multi-well spectrophotometer. This method ensures a high degree of accuracy and enables on-line computer processing of the data.

Phosphodiesterase, Phosphatase, Kinase, and ELISA Assay Development

Altogen Labs offers kinase, phosphatase, and phosphodiesterase assay development services for screening and validation studies. For each project, an individual pathway is defined that matches the biology and chemistry requirements of the target to the most appropriate assay technology platform available. Company scientists have experience developing assays with all major fluorometric readouts and biologically relevant formats…

Immunohistochemical Staining (IHC Assay Development Service)

Altogen Labs immunohistochemical staining services are available for formalin-fixed, fresh, untrimmed tissue samples, paraffin-embedded tissue blocks, specimens in preservative, or slides (unstained). Company scientists process the specimens and gross to cassette, embed the preserved specimens in paraffin blocks, section the blocks using a microtome, treat the frozen sections with OCT compound and further…

Custom Preclinical Research Services

Custom laboratory research services include:

  • Transfection services (transient and stable)
  • Assay development and library screening
  • Cloning and plasmid vector construction

Featured transfection products from Altogen Biosystems:

In Vivo Transfection Kits || Fibroblast Cell Transfection Kit || HepG2 Cell Transfection Reagent || MDA-MB Transfection Reagent || A549 Cell Transfection Reagent || HUVEC Transfection Reagent || LNCaP Cell Transfection Kit || In Vivo Nanoparticle Transfection Kit || In Vivo PEG-Liposome Transfection Kit ||  In Vivo Lipid Transfection Kit ||  In Vivo Polymer Transfection Kit

Transfection Resource:

Visit Altogen’s Transfection Resource: RNAi applications, stable and transient transfection, delivery methods, electroporation, nanoparticle, microinjection, dendrimer-based, non-viral and virus-mediated gene delivery, liposome and non-liposomal reagents, In Vivo Transfection Reagents from Altogen Biosystems.