HispanicBusiness

Upcoming Activities
NewLink expects to present at the following conferences:

•2013 Needham Healthcare Conference, April 30 - May 1, in NYC •Jefferies 2013 Global Healthcare Conference taking place June 3-6 in NYC •American Society of Clinical Oncology (ASCO) 2013 May 31 - June 4, 2013 in Chicago, IL.

Today's Conference Call and Webcast Reminder
The NewLink management team will host a conference call discussing the company's financial results and recent corporate developments on Thursday, February 28, 2013, at 10:00am EST. The call can be accessed by dialing 1-(877) 363-5052 (domestic) or 1-(914) 495-8600 (international) five minutes prior to the start of the call and providing the passcode 16064630. A replay of the call will be available approximately two hours after the completion of the call and can be accessed by dialing 1-(855) 859-2056 (domestic) or 1-(404) 537-3406 (international), providing the passcode 16064630. The replay will be available for two weeks from the date of the live call.

About HyperAcute Immunotherapy

NewLink's HyperAcute immunotherapy technology is designed to stimulate the human immune system by exploiting a natural barrier present in humans that protects against infection being transmitted from other mammals. This barrier is related to the enzyme, alpha (1,3) galactosyl transferase, or Alpha-GT, which is expressed in the cells of lower mammals but not present in human cells. The presence of this enzyme results in the incorporation of a non-human form of carbohydrate called alpha (1,3) galactosyl carbohydrates, or Alpha-Gal, on the surface of expressing cells. Introducing Alpha-Gal expressing cells to the human immune system activates an immune response resulting from pre-existing antibodies against Alpha-Gal. Antibodies directed against the Alpha-Gal epitope are potentially the most abundant natural antibody in humans and represent approximately 1% of circulating human antibodies.

NewLink's HyperAcute cancer immunotherapy product candidates are composed of irradiated, live, allogeneic human cancer cells modified to express the gene that makes Alpha-Gal epitopes. This exposure to Alpha-Gal stimulates the human immune system to attack and destroy the immunotherapy cells on which Alpha-Gal is present by activating complement, an important component of the immune system capable of cell destruction. After destruction, NewLink believes the resulting cellular fragments bound by anti-Alpha-Gal antibodies are processed by the immune system to elicit an enhanced multi-faceted immune response to tumor-associated antigens common to both the immunotherapy and the patient's tumor cells.

About indoximod and inhibition of the IDO pathway
IDO pathway inhibitors, including indoximod, represent a potential breakthrough approach to cancer therapy using small-molecule, anti-toleragenic product candidates intended to counteract a key mechanism by which tumors evade immune-mediated destruction. IDO is an enzyme that regulates immune response by suppressing T-cell function and enabling local tumor immune escape. Recent studies have demonstrated that IDO is overexpressed in many cancers, within both tumor cells as a direct defense against T-cell attack, and also within antigen presenting cells in tumor draining lymph nodes whereby IDO promotes peripheral tolerance to tumor associated antigens (TAAs). When hijacked by developing cancers in this manner, IDO may facilitate the survival, growth, invasion, and metastasis of malignant cells expressing TAAs that might otherwise be recognized and attacked by the immune system as foreign. Indoximod is currently in multiple Phase 1B/2 studies evaluating the addition of indoximod to Taxotere in the treatment of breast cancer and the addition of indoximod to an autologous P-53 Denritic Cell vaccine, also in the treatment of breast cancer patients. In addition to its clinical indoximod product candidate, NewLink has an active program directed at synthesizing other IDO pathway inhibitors.