Out-licensing

Development of broad spectrum anti-viral agent using body-derived virus suppressing factor, activati

Key Technology Highlights

 

l  Antiviral drug, VSF (virus suppressing factor)

1. Broad spectrum effect on various viruses by affecting host cell

2. Due to the potent anti-viral effects of VSF, only 1 hour is fully enough to get potent

anti-viral effects compare to over 12 hours required for interferon activity.

3.VSF shows the potent inhibitory effect of viral replication both in vitro and in vivo.

4.Unlike interferon, Inhibition of MHC-I & -II induction and macrophages, CD4 and CD8 T cell infiltration

5. No side effects and drug resistant found

 

Interferon	VSF
•      Broad spectrum to several viruses by cellular stimulation	•      Broad spectrum to several viruses by cellular stimulation
•      Induction of excessive infiltration of immune cell •      Side effects with high dosage •      Limited spectrum •      Low activity in vivo	•      Inhibition of infiltration of immune cell •      No side effect •      Broad spectrum •      Highly effective both in vitro and in vivo •      Rapid effectiveness

 

 

 

 

 

 

 

 

Technology Overview

 

1.    Technology platform

1)    History of VSF identification

 

  2) The inhibitory effect of immune cell infiltration and viral replication

(1) Influenza virus

When influenza virus is infected, it causes pneumonia and immune cell infiltration in alveolar rapidly. However, the administration of VSF during infection has clearly shown the inhibition of excessive inflammation and the recovery of disease from the mouse experiment.

 

(2) Hepatitis virus

If hepatitis virus is infected, it causes the degeneration of hepatocyte and immune cell infiltration to hepatic parenchymal tissue.

However, the treatment of VSF during viral infection has clearly shown the inhibition of hepatic degeneration and inflammation and the recovery of health in animal model system.

 

(3) EMC virus causing Diabetes

When virus is infected to the ß cell of pancreatic islet

 

      The destruction of ß cell         Confirming the viral replication

       of pancreatic islet by immune     in the destructed pancreatic islet

 cell infiltration

 

When virus is infected to the ß cell of pancreatic islet and treated with VSF

 

No immune cell infiltration         Confirming the viral protein

found in the islet                 in the healthy looking islet.

                                       After 1 week post-infection,

            viral proteins disappear.

 

2. Stage of development

Currently, not only viral clearance of pathogenic viruses such as, Hepatitis, Herpes and Influenza virus but also the inhibition of hyper-inflammatory response have been confirmed through various in vitro and in vivo experiments.

 

By registering some results, ImmuneMed Inc. acquired US patent (No.7514082). Eventually, we succeeded in producing chimeric humanized VSF(chVSF) and then are developing humanized VSF(hVSF) for using this chVSF as a novel antiviral drug.

 

The most recent progress in VSF development is that we identified about 60KD receptor called p60

under investigation to characterize. This VSF receptor, p60 is not present on the normal cell but is

only expressed on the infected cell surface after viral infection.

 

Now ImmuneMed Inc. has plans to submit pre-clinic and clinical test for Hepatitis B, Hepatitis C and Influenza after setting up for the appropriation and mass production of chVSF.

Early Stage

No.	Name of Patent	Application No.	Date of application /approval	Country	Status (Applied/approval)
1	Novel anti-viral VSF protein and hybridoma producing the same	0425030	2004/03/17	Korea	Registered
2	Novel anti-viral VSF protein and hybridoma producing the same	WO 03/064461 A1	2003/08/07	PCT	Application open
3	Same as above	7514082	2009/04/07	USA	Registered