Adoptive T cell therapy involves the isolation and ex vivo expansion of tumor specific T cells to achieve greater number of T cells than what could be obtained by vaccination alone. The tumor specific T cells are then infused into patients with cancer in an attempt to give their immune system the ability to overwhelm remaining tumor via T cells which can attack and kill cancer. There are many forms of adoptive T cell therapy being used for cancer treatment; culturing tumor infiltrating lymphocytes or TIL, isolating and expanding one particular T cell or clone, and even using T cells that have been engineered to potently recognize and attack tumors. Our approach has been to utilize T cells taken directly from the patients blood after they have received a cancer vaccine. We have found by priming rare tumor antigen specific T cells first, with active immunization, we are much more able to expand those T cells in the laboratory to greater numbers for therapeutic infusion.
A unique aspect to our approach for adoptive T cell therapy is the use of tumor specific CD4+ Th1 cells which may enhance anti-tumor efficacy. Adoptive T cell therapy strategies have largely focused on the infusion of tumor antigen specific cytotoxic T cells (CTL) which can directly kill tumor cells. However, CD4+ Th cells have a broader functionality. Th can activate antigen-specific effector cells and recruit cells of the innate immune system such as macrophages and dendritic cells to assist in antigen presentation (APC). Moreover, antigen primed Th cells can directly activate tumor antigen-specific CTL. In addition to direct contact, Th can activate CTL through cytokines such as IL-2 which stimulate the growth and expansion of effector T cells. In addition, Th1 induce the production of opsonizing antibodies that enhance the uptake of tumor cells into APC. These activated APC can then directly present tumor antigens to T cells.
As a direct result of activating APC, antigen specific Th1 have been implicated as the initiators of epitope or determinant spreading which is a broadening of immunity to other antigens in the tumor. The phenomenon of epitope spreading has been linked with a survival benefit after immunotherapy in patients with melanoma and breast cancer. The ability to elicit epitope spreading broadens the immune response to many potential antigens in the tumor and presumably would result in more efficient tumor cell kill due to the ability to mount a heterogeneic response. In this way, adoptive T cell therapy can used to stimulate endogenous immunity.
We continue to evaluate the role of adoptive T cell therapy for the treatment of advanced stage cancers. In addition, we are focusing on methods to expand T cells more readily in culture by developing new immunization regimens as well as developing novel culture systems. We are evaluating ways to change the phenotype of the T cell generated to make those cells more effective in killing cancer cells. Finally, we are assessing methods to enhance the ability of the T cell to better penetrate the tumor, thereby allowing greater numbers of the destructive T cells to migrate deep into the tumor and cause the death of malignant cells. In combination with this line of investigation we are working with collaborators to develop novel methods to label and track tumor specific T cells in vivo on both animal models and patients. The ability to visualize T cells homing to tumor will allow us to optimize therapeutic efficacy of the approach.
See the original post here:
Adoptive T Cell Therapy | Tumor Vaccine Group
- Goodie Mob - Cell Therapy Instrumental - April 2nd, 2011 [April 2nd, 2011]
- Dogged by pain -- stem cell therapy for dogs - April 3rd, 2011 [April 3rd, 2011]
- SIRA: Could Stem Cell Therapy Renew Your Body Cells? – Affordable ... - April 22nd, 2011 [April 22nd, 2011]
- SIRA: Could Stem Cell Therapy Renew Your Body Cells? - April 22nd, 2011 [April 22nd, 2011]
- Stem Cell Therapy for Kidney Failure - May 13th, 2011 [May 13th, 2011]
- Dogs now getting stem cell therapy - May 19th, 2011 [May 19th, 2011]
- Goodie Mob - Cell Therapy Official Music Video (VJ CodyDietz.com ReMiX) - May 20th, 2011 [May 20th, 2011]
- Stem Cell Therapy for Autism - May 20th, 2011 [May 20th, 2011]
- Dog Undergoes Stem Cell Therapy - May 20th, 2011 [May 20th, 2011]
- Stem Cell Therapy for Cerebral Palsy - May 22nd, 2011 [May 22nd, 2011]
- Stem Cell Therapy for Type II Diabetes - May 31st, 2011 [May 31st, 2011]
- Stem Cell Therapy Success - May 31st, 2011 [May 31st, 2011]
- Heart Failure Patient After Adult Stem Cell Therapy - June 1st, 2011 [June 1st, 2011]
- Stem Cell Therapy for Rheumatoid Arthritis - June 3rd, 2011 [June 3rd, 2011]
- Stem Cell Therapy for Critical Limb Ischemia - June 12th, 2011 [June 12th, 2011]
- Stem Cell Therapy Cream: Less Wrinkles In 30 Days or Less Anti-Wrinkle Cream That Works - June 12th, 2011 [June 12th, 2011]
- Stem Cell Therapy for Multiple Sclerosis - June 13th, 2011 [June 13th, 2011]
- Clinical Advances in Adult Stem Cell Therapy: Dr. Jorge Paz - June 17th, 2011 [June 17th, 2011]
- Stem Cell Injection Treatment - Stem Cell Therapy - June 21st, 2011 [June 21st, 2011]
- Stem Cell Therapy for Spinal Cord Injury - Injured Airline Pilot Flies Again - July 1st, 2011 [July 1st, 2011]
- Documentary: Stem Cell Therapy for Muscular Dystrophy - Ryan Benton's Story - July 1st, 2011 [July 1st, 2011]
- Documentary: Stem Cell Therapy for Muscular Dystrophy - Ryan Benton's Story - July 1st, 2011 [July 1st, 2011]
- XCell-Center Stem Cell Therapy Christmas Video 2010 - July 2nd, 2011 [July 2nd, 2011]
- Stem Cell Therapy for Stroke - Gary Steinberg, Stanford University - July 9th, 2011 [July 9th, 2011]
- Stem Cell Therapy Injections - July 9th, 2011 [July 9th, 2011]
- Stem Cell Therapy MS: Sam Harrell and The Superbowl - July 13th, 2011 [July 13th, 2011]
- Adult Stem Cell Therapy Clinical Advances - Dr. Jorge Paz in San Diego, CA March 2011 - July 14th, 2011 [July 14th, 2011]
- Lou Gehrig's Disease (ALS): UCSD Team's Stem Cell Therapy Rationale - July 15th, 2011 [July 15th, 2011]
- Lou Gehrig's Disease (ALS): UCSD Team's Stem Cell Therapy Rationale - July 15th, 2011 [July 15th, 2011]
- Stem Cell Therapy--Hillcrest Animal Hospital - July 18th, 2011 [July 18th, 2011]
- Regenerative Medicine With Stem Cell Therapy Injections at an Arizona pain clinic (602) 507-6550 - July 19th, 2011 [July 19th, 2011]
- Bone Marrow Aspiration - Stem Cell Therapy - July 19th, 2011 [July 19th, 2011]
- The New World of Medicine: Stem Cell Therapy - July 29th, 2011 [July 29th, 2011]
- Post Stem Cell Therapy Video for Cerebral Palsy - August 3rd, 2011 [August 3rd, 2011]
- Lou Gehrig's Disease (ALS): Stem Cell Therapy - A Patient's Perspective - August 5th, 2011 [August 5th, 2011]
- Lou Gehrig's Disease (ALS): Stem Cell Therapy - A Patient's Perspective - August 5th, 2011 [August 5th, 2011]
- Stroke Victim Improved With Stem Cell Therapy. More at http://www.stemcellfusion.com - August 9th, 2011 [August 9th, 2011]
- WAVE3 News Adipose Stem Cell Therapy - August 14th, 2011 [August 14th, 2011]
- Embryonic stem cell therapy in China (www.esctherapy.com) - August 17th, 2011 [August 17th, 2011]
- Ying Liu discusses IPS cell therapy for ALS - August 17th, 2011 [August 17th, 2011]
- KO Clancy - August 24th, 2011 [August 24th, 2011]
- Stem cell therapy in Guatemala - (closer than China) - August 26th, 2011 [August 26th, 2011]
- ATP Cell Therapy - August 27th, 2011 [August 27th, 2011]
- Dr. Craig Saunders Adult Stem Cell Therapy - August 28th, 2011 [August 28th, 2011]
- Spinal Cord Injury - Stem Cell Therapy - August 29th, 2011 [August 29th, 2011]
- Stem Cell Therapy For Alzheimer's/Dementia - September 13th, 2011 [September 13th, 2011]
- Stem Cell Therapy For Alzheimer's/Dementia - September 13th, 2011 [September 13th, 2011]
- Stem Cell Therapy (Regenerative Medicine) in New Jersey - September 17th, 2011 [September 17th, 2011]
- Clinical Advances in Adult Stem Cell Therapy - Dr. Jorge Paz Rodriguez (Miami) - September 23rd, 2011 [September 23rd, 2011]
- Stem Cell Therapy Skin Repair and Anti-Wrinkle Cream - September 25th, 2011 [September 25th, 2011]
- Cardiac Stem Cell Therapy - September 26th, 2011 [September 26th, 2011]
- Adult Stem Cell Therapy for Multiple Sclerosis - September 26th, 2011 [September 26th, 2011]
- SENS5 - Cellular Therapy for Intestinal Regeneration - September 29th, 2011 [September 29th, 2011]
- channel 10 news stem cell therapy for hair loss part 2.flv - October 4th, 2011 [October 4th, 2011]
- Multiple Sclerosis Stem Cell Therapy News Coverage - October 4th, 2011 [October 4th, 2011]
- Stem-Cell-Therapy-in-China.wmv - October 5th, 2011 [October 5th, 2011]
- Adickes: Stem cell therapy - October 5th, 2011 [October 5th, 2011]
- Don Reed: Why we need new stem cell therapies and how you can help - October 5th, 2011 [October 5th, 2011]
- Repair Your Joint Injuries With Stem Cell Therapy | Los Angeles | Beverly Hills | Hollywood - October 6th, 2011 [October 6th, 2011]
- Repair Your Joint Injuries With Stem Cell Therapy | Los Angeles | Beverly Hills | Hollywood - October 6th, 2011 [October 6th, 2011]
- Ovation Cell Therapy Review (request) - October 6th, 2011 [October 6th, 2011]
- Glazer's Edge: Peyton's Stem Cells - October 6th, 2011 [October 6th, 2011]
- Glazer's Edge: Peyton's Stem Cells - October 6th, 2011 [October 6th, 2011]
- The Spinal Cord Journey - Stem cell therapy stories from three spinal cord injury patients - October 6th, 2011 [October 6th, 2011]
- Goodie Mob - Cell Therapy - Video - October 13th, 2011 [October 13th, 2011]
- Randolph veterinarian uses new stem cell therapy on ailing pets - Video - October 13th, 2011 [October 13th, 2011]
- Stem Cell Therapy for Autism - Video - October 13th, 2011 [October 13th, 2011]
- 1 month after using Ovation Hair Cell Therapy and the results are...... - Video - October 13th, 2011 [October 13th, 2011]
- Stem Cell Series: Part 1 - Video - October 15th, 2011 [October 15th, 2011]
- Stem Cell Therapy for Multiple Sclerosis (MS patient) - Video - October 15th, 2011 [October 15th, 2011]
- Affordable Stem Cell Therapy in Guatemala (2hrs from Miami) - Video - October 16th, 2011 [October 16th, 2011]
- Duffy Update, Post Stem Cell Therapy - Video - October 18th, 2011 [October 18th, 2011]
- Duffy Gets Stem Cell Therapy - Video - October 18th, 2011 [October 18th, 2011]
- Adult Stem Cell Therapy for Congestive Heart Failure - October 20th, 2011 [October 20th, 2011]
- CELL THERAPY - Video - October 23rd, 2011 [October 23rd, 2011]
- Stem Cell Therapy in Cardiac Disease - Video - October 25th, 2011 [October 25th, 2011]
- Stem Cell Therapy for Rheumatoid Arthritis - Community Outreach Dallas - Darnell Morris - Video - October 25th, 2011 [October 25th, 2011]
- UMBILICAL CORD STEM CELL THERAPY - Video - October 27th, 2011 [October 27th, 2011]
- Stem Cell Therapy for Multiple Sclerosis Stimulates IDO - Video - October 27th, 2011 [October 27th, 2011]
- Goodie Mob - Cell Therapy ( Killuminati Music ) - Video - October 27th, 2011 [October 27th, 2011]