Navigation Links
Ex vivo efficacy of C1s antibody as Complement inhibitor in cold agglutinin disease
Date:4/14/2014

SOUTH SAN FRANCISCO, Calif.--True North Therapeutics, Inc., announced today a publication demonstrating that the company's C1s antibody prevents the destruction of human red blood cells exposed to plasma samples of patients with a type of autoimmune hemolytic anemia (AIHA). The article entitled "TNT003, an inhibitor of the serine protease C1s, prevents complement activation induced by cold agglutinin disease patient autoantibodies" was published on-line in the journal Blood earlier this month. TNT003 is the murine analog of True North's lead humanized monoclonal antibody drug candidate, TNT009, for which the company plans to initiate the first clinical program in 2015.

In ex vivo studies using plasma samples from patients with a type of AIHA known as cold agglutinin disease (CAD), True North demonstrated that red blood cells exposed to patient samples contained high levels of Complement proteins deposited on the cell surface. True North showed that by inhibiting Complement deposition on the red blood cell membrane, TNT003 prevented the red blood cells from being engulfed by macrophages, immune cells responsible for clearing Complement-coated cells and debris from the blood. TNT003 also prevented direct red blood cell lysis driven by a CAD sample that contained unusually high levels of autoantibodies, suggesting that a Complement inhibitor like TNT003 could be efficacious in severe cases of CAD.

"By selectively shutting down the Classical Complement pathway with an antibody, the main drivers of anemia in CAD have been reduced in this preclinical study. Using TNT003 and a large number of 40 patient samples, we were able to deepen the field's understanding of the Complement system's role in this rare disease. The study strengthens the hypothesis that such an approach could be beneficial in this rare patient population," stated Sandip Panicker, PhD, C1s Program Lead and senior author on the journal article in Blood.

TNT003 inhibits C1s, a member of the Complement family of plasma proteins, which, upon activation, trigger a powerful enzymatic cascade that destroys and removes pathogens from the circulation. However, aberrant Complement system activation has been described in numerous autoimmune settings in which antibodies that attack self, known as autoantibodies, play a role in disease pathogenesis. Like other forms of AIHA, CAD is a disorder in which anti-red blood cell antibodies bind to and lead to the destruction of patient red blood cells through Complement system activation.

Dr. Panicker further stated, "As Complement system activity is the only known driver of red blood cell destruction in patients with CAD, the results in the study published in Blood provide compelling evidence for the development of TNT009, the company's lead humanized monoclonal antibody, for the treatment of CAD and potentially other forms of AIHA, for which no approved therapies exist."


'/>"/>

Contact: Kathryn Morris
kathryn@theyatesnetwork.com
845-635-9828
The Yates Network
Source:Eurekalert

Related medicine news :

1. Does the bodys immune response to viral vector delivery systems affect the safety or efficacy of gene therapy?
2. Human stem cells predict efficacy of Alzheimer drugs
3. Osteoporosis drugs compared for side effects, efficacy in Loyola study
4. Despite missing primary efficacy endpoint, ATOMIC-AHF identifies positive trends
5. CHERISH trial demonstrates efficacy of tocilizumab in juvenile idiopathic arthritis
6. Long-term apremilast demonstrates continued efficacy in patients with psoriatic arthritis
7. Registry confirms TAVI efficacy and safety in Asian patients
8. Minocycline Enhances the Efficacy of Perispinal Enbrel in Traumatic Brain Injury Treatment as well as Stroke Treatment and Alzheimer’s Treatment
9. CycleBeads Natural Birth Control Method Ranks High in Perfect Use and Typical Use Efficacy According to Most Recent Review of Global Family Planning Reports
10. Study shows long-term efficacy of minimally invasive therapy for patients with Barretts esophagus
11. Muscular Development Store Comments on Efficacy of Protein Blends
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... ... February 12, 2016 , ... ... initiative—the Siemens Foundation-PATH Ingenuity Fellowships—to develop the advanced skills needed to introduce ... from U.S. universities who will draw from Siemens’ deep knowledge of product ...
(Date:2/12/2016)... ... ... Each year, the American Physical Therapy Association (APTA) offers a Combined Sections Meeting. ... Almost 10,000 physical therapists across the country are expected to attend this annual convention ... field and network with their colleagues. As in years past, HydroWorx is proud ...
(Date:2/12/2016)... ... February 12, 2016 , ... The ... Zuckerberg San Francisco General Hospital on April 5-7. The series is a multi-day, ... new habits. The workshops cover a broad range of topics, including coaching skills, ...
(Date:2/12/2016)... ... , ... AssureVest Insurance Group, a locally owned insurance firm with offices serving ... funds earmarked to purchase computers and software for Mrs. Harrison’s 2nd and 3rd grade ... a low-income area and has more than 60 2nd and 3rd graders with learning ...
(Date:2/12/2016)... , ... February 12, 2016 , ... ... the Pittsburgh metro area, celebrates the beginning of the latest charity campaign in ... social skills through art. Donations to this worthy cause are currently being accepted ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... The primary goal of this research is to analyze ... of liquid biopsy. Key information the survey seeks to ... liquid biopsy adoption amidst future users - Predominantly used ... Sample inflow to conduct liquid biopsy tests - Preference ... on. - Correlation analysis of sample type and biomarker ...
(Date:2/11/2016)... PRO-DEX, INC. (NasdaqCM: PDEX) today announced financial results for its ... also filed its Quarterly Report on Form 10-Q for the ... Exchange Commission today. --> --> ... --> Net sales for the three months ... $5.4 million from $2.8 million for the three months ended ...
(Date:2/11/2016)... 2016  Kindred Biosciences, Inc. (NASDAQ: KIN ), ... lives of pets, today announced the submission to FDA ... Drug Application (NADA) for Zimeta™ (dipyrone injection, KIND-012).  Positive ... Zimeta for the control of pyrexia (fever) in horses ... --> --> The Chemistry, Manufacturing, and ...
Breaking Medicine Technology: