Altogen Biosystems  848 Rainbow Blvd #823  L as Vegas  N V  8 9107  U SA

1. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) Altogen Biosystems offers the KB Transfection Reagent among a host of 100+ cell line specific In Vitro Transfection Kits. KB Transfection Reagent is an advanced cationic lipid formulation basedreagent, and it has been developed to provide high transfection efficiency with KB cells. This cell line is a good host for research related to antineoplastic agents and antitumor assay. When cultured in vitro, KB cells are a monolayer and adhere to the surface of the culture flask. Other applications include drug discovery, gene expression studies, molecular and cell biology research applications. Purchase KB Transfection Kit at www.Altogen.com Altogen Biosystems 848 Rainbow Blvd #823  Las Vegas  NV  89107  USA Telephone 702 349 6103  Fax 702 989-0841  email  techserv@altogen.com

2. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) KB Cell Line Description and Applications The KB cell line originates from epidermal carcinoma cells taken from the nasopharynx or human throat cancer. The KB cell line displays epithelial morphology. This cell line is a subline of the HeLa line as evidenced by genetic fingerprinting. The KB cell line is also known for keratin production and have a wide array of applications in biomedical research. KB cells contain HPV-18 or human papillomavirus 18. The National Cancer Institute has used the KB cell line in screening plant extracts with antitumor assays. The cell line can also be used as an assay for antineoplastic agents. KB Cells cellbank.nibiohn.go.jp Altogen Biosystems 848 Rainbow Blvd #823  Las Vegas  NV  89107  USA Telephone 702 349 6103  Fax 702 989-0841  email  techserv@altogen.com

3. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) KB Transfection Protocol 1. Plate 10,000 - 15,000 KB cells per well in 0.5 ml of complete growth medium 12–24 hours prior to transfection 2. Wash with 1xPBS and add 0.5 ml of fresh growth medium 3. Prepare transfection complexes by mixing 40 µl of serum-free medium, 5.5 µl of transfection reagent, and • 750 ng DNA (or mRNA), or • 30 nM - 50 nM of siRNA (or microRNA) *Referred to a final volume including growth medium 4. Incubate transfection complexes at RT for 15 - 30 minutes 5. Optional: Add 2 µl of Complex Condenser. This reagent reduces the size of transfection complex, therefore increasing transfection efficiency; however, it may increase cell toxicity 6. Add prepared transfection complexes to 0.5 ml of complete growth medium with KB cells (from step 2) 7. Incubate cells at 37ºC in a humidified CO2 incubator 8. Assay for phenotype or target gene expression 48 - 72 hours after transfection Optional: Transfection efficiency can be increased by addition of Transfection Enhancer reagent. Add 2 µl of Transfection Enhancer reagent 12-24 hours after transfection If the viability of KB cells being transfected is affected at 16 - 24 hours post-transfection, the level of cytotoxicity can be decreased by changing the growth medium and eliminating redundant exposure of cells to transfectant Altogen Biosystems 848 Rainbow Blvd #823  Las Vegas  NV  89107  USA Telephone 702 349 6103  Fax 702 989-0841  email  techserv@altogen.com

4. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) General Lipoplex-mediated Transfection Mechanism of Action Altogen Biosystems 848 Rainbow Blvd #823  Las Vegas  NV  89107  USA Telephone 702 349 6103  Fax 702 989-0841  email  techserv@altogen.com

5. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) KB Transfection Kit Product Details • Proprietary cationic lipids formulation • Optimized easy-to-use transfection protocol provided for transfection of siRNA, DNA, mRNA, and microRNA • Kit includes Transfection Enhancer reagent and recommended transfection protocol • High transfection efficacy in the presence of serum • Expand your RNAi application with a reagent optimized for delivery of both siRNA and plasmid • Reproducible transfection results • Works well for standard reverse transfection and high-throughput applications • Developed and manufactured by Altogen Biosystems (www.Altogen.com) Altogen Biosystems 848 Rainbow Blvd #823  Las Vegas  NV  89107  USA Telephone 702 349 6103  Fax 702 989-0841  email  techserv@altogen.com

6. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) Data Figure 1. GAPD mRNA levels were quantified using real-time RT-PCR in the KB cells transfected with siRNAs targeting GAPD or non-silencing siRNA. Forty-eight hours post-transfection, the cells were harvested and analyzed by real-time RT-PCR for GAPD mRNA expression levels. Data were normalized against the 18S rRNA signal. Control samples were either mock-transfected or untreated. Values are normalized to untreated sample. Data are means ± SD (n=5).

7. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) Data Figure 2. Protein expression of GAPDH in KB cells. DNA plasmid expressing GAPDH or siRNA targeting GAPDH were transfected into KB cells following Altogen Biosystems transfection protocol. At 72 hours post-transfection the cells were analyzed by Western Blot for protein expression levels (normalized by total protein, 10 µg of total protein loaded per each well). Untreated cells used as a negative control.

8. Leading Developer and Manufacturer of In Vivo and DNA Transfection Kits, Transfection Reagents and Electroporation Delivery Products Products >KB Transfection Reagent (Mouth Epidermal Carcinoma) KB Transfection Kit Benefits • Pre-optimized transfection protocol for KB cell line • Compatible with DNA, small RNA (siRNA, shRNA, miRNA), mRNA, and small protein complexing • Free of serum and protein of animal origin • Compatible with standard and reverse transfection methods (both protocols provided in the kit manual) • Easy to use KB transfection protocol ensures great performance with expedited experimental timeline • Equally efficient for single or multiple transfections • Can be used for transient transfection and development of stable KB cell lines • Bio-degradable after endocytosis • Used for preclinical research worldwide Altogen Biosystems 848 Rainbow Blvd #823  Las Vegas  NV  89107  USA Telephone 702 349 6103  Fax 702 989-0841  email  techserv@altogen.com