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Re: cjgaddy post# 286036

Monday, 02/27/2017 4:37:12 PM

Monday, February 27, 2017 4:37:12 PM

Post# of 347009
Reminder/Mar1: On/Feb12, AACR’17 revealed a 2nd(new) joint PPHM+MemSloan poster (study) that the Wolchok Lab will present on 4-3-17, “Targeting Phosphatidylserine in Combination with Adoptive T Cell Transfer Eliminates Advanced Tumors without Off-Target Toxicities in a Melanoma Preclinical Model”. We only know the TITLE at this point. On Wed. 3-1-17 4:30pmET, AACR’17 will publish the Abstract Summaries at http://www.aacr.org/Meetings/Pages/MeetingDetail.aspx?EventItemID=105&DetailItemID=539 . This has obviously be known for some time by Mem.Sloan & Peregrine – the deadline for “regular abstracts” was Nov. 17th, and for “late breakers” was Jan. 12th.

= = = = = = = = = = = = =WHAT WE DO KNOW:
The New PPHM+Mem.Sloan/Wolchok PS-Targeting Study was revealed via AACR’17 Abstracts pub. 2-12-17 at http://www.abstractsonline.com/pp8/#!/4292 . I’m learning more about this cancer immunotherapy approach called “Adoptive Cell Transfer (ACT)” that The Wolchok Lab & Peregrine are working on. It’s a bigger deal than I thought...

THIS IS THE NEW MSK/PPHM STUDY REVEALED BY THE AACR’17 ABSTRACTS: (see http://tinyurl.com/z47hb2s ):
#2: AACR’17(4-3-17) http://tinyurl.com/jxfm3hb
4-3-17/8am #1651 - Session: TUMOR MICROENVIRONMENT & CHECKPOINTS
“Targeting Phosphatidylserine in Combination with Adoptive T Cell Transfer Eliminates Advanced Tumors without Off-Target Toxicities in a Melanoma Preclinical Model”
=> Daniel Hirschhorn-Cymerman 1, Sara Sara Schad 1, Sadna Budhu 1, Zhong Hong 1, Xia Yang 1, Jeff Hutchins 2, Bruce Freimark 2, Michael Gray 2, Jedd Wolchok 1, Taha Merghoub [Memorial Sloan Kettering]
1=Memorial Sloan Kettering CC, NYC [ http://www.mskcc.org/research-areas/labs/jedd-wolchok ]
2=Peregrine Pharmaceuticals
***FULL ABSTRACTS TO PUB. AT AACR.COM 3-1-17.

“Adoptive Cell Transfer (ACT)” is the transfer of cells into a patient. The cells may have originated from the patient or from another individual. The cells are most commonly derived from the immune system, with the goal of improving immune functionality and characteristics. In cancer immunotherapy, T cells are extracted from the patient, genetically modified and cultured in vitro and returned to the same patient.

**From 3-2014 Immunotherapy article: “Cancer immunotherapy, particularly adoptive cell transfer (ACT), has shown great promise in the treatment of patients with late-stage disease, including those who are refractory to std. Therapieshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4372895

**Through the support from SEAN PARKER, Stand Up To Cancer (SU2C) and the Cancer Research Institute (CRI) formed an Immunology Research Dream Team dedicated to cancer immunology: “Immunologic Checkpoint Blockade & Adoptive Cell Transfer in Cancer Therapy.” The Immunotherapy Dream Team is focused on 2 approaches for this translational cancer research project, which will unite laboratory & clinical efforts towards the immunological treatment, control, and prevention of cancer.
The 1st is investigating blockades (by inhibitory molecules called “checkpoints”) of T lymphocytes’ inhibitory receptors, which block immune responses; and the use of antibodies to remove the checkpoints, once again allowing white blood cells called T lymphocytes to kill the cancer cells.
Second, the Immunotherapy Dream Team is pursuing multiple Adoptive Cell Transfer (ACT) approaches, which increase immunity.”
DREAM TEAM LEADERSHIP: 10 scientists, incl. MSKCC’s Jedd D. Wolchok & Michel Sadelain.
http://parker.org/initiatives/immunotherapy

**12-12-2012: MSK Researchers Jedd Wolchok & Michel Sadelain Appointed to “Stand Up To Cancer” Immunology “Dream Team”...
TWO APPROACHES TO ATTACKING CANCER:
The Immunology Dream Team will pursue 2 research techniques.
The 1st, being led by Dr. Wolchok, involves studying how a type of white blood cell called a T lymphocyte, or T cell, can kill cancer cells. Sometimes, the natural function of the T lymphocyte is blocked or not activated enough to attack cancer cells, allowing the cancer to grow ["Immunologic Checkpoint Blockade"]. Part of the Dream Team’s focus will be to investigate ways to ensure that the T lymphocytes work properly in recognizing and killing cancer cells.
The 2nd immunotherapy approach, known as Adoptive Cell Transfer (ACT), involves removing some of a patient’s T cells, enhancing their cancer-fighting abilities and growing them in the laboratory, and then infusing the enhanced cells back into the patient. This can provide a patient with an army of immune cells specifically programmed to fight against cancer. This part of the Dream Team’s research, led by Dr. Sadelain, will investigate several ways to use ACT as a cancer therapy.
https://www.mskcc.org/blog/msk-researchers-appointed-stand-immunology-dream-team

= = = = = = = = = = = = =
Apr1-5: AACR 2017, WashDC http://tinyurl.com/jxfm3hb (Abstract Summaries pub. 3-1-17)
...MSKCC+PPHM: 4-2-17/1pm #574, “PSTargeting+RAD+AntiPD1 Promotes Anti-Tumor Activity, Melanoma”
...MSKCC+PPHM: 4-3-17/8am #1651, “PSTargeting+Adoptive TCell Transfer Elims. Adv. Tumors w/o Off-Target Toxicities, Melanoma” <=NEW MSK STUDY
...PPHM: 4-4-17/8am #3652, “PSTargeting+LAG3+AntiPD1 Significantly Enhances Anti-Tumor Activity, Triple- MBC”
...IMMUNOVACCINE+PPHM: 4-4-17/8am #3657, ”PSTargeting Enhances Anti-Tumor Activity of a Tumor Vaccine(DepoVax), HPV-Induced Tumor”

MOST INTERESTING: Mem. Sloan’s Dr. Jedd. Wolchok is co-author of 5 AACR’17 Posters. 2 of the 5 are w/PPHM re: PS-Targeting. Only one other is with a biotech: Genocea Biosciences. The 4th is MSKCC ONLY, and the 5th is jointly w/Cedars-Sinai/LA. http://www.abstractsonline.com/pp8/#!/4292
PEREGRINE (Joint Mem.Sloan Kettering Wolchok Lab & PPHM):
1. 4-2-17 #574 “Phosphatidylserine targeting antibody in combination with tumor radiation and immune checkpoint blockade promotes anti-tumor activity in mouse B16 melanoma”
2. 4-3-17 #1651 “Targeting phosphatidylserine in combination with adoptive T cell transfer eliminates advanced tumors without off-target toxicities in a melanoma preclinical model”
NON-PEREGRINE:
3.(MSK ONLY): 4-2-17 #874 “Lifting the iron curtain: Imaging cellular barriers to combination chelation-immune checkpoint therapy”
4.(MSK & Genocea Bio. http://www.genocea.com GNCA/$130mm MktCap) 4-2-17 #632 “Genome-scale neoantigen screening using ATLAS™ prioritizes candidate antigens for immunotherapy in a NSCLC patient”
5.(MSK & Cedars-Sinai/LA) 34-4-17 #4705 “CTLA4 blockade with HER2-directed therapy (H) yields clinical benefit in women undergoing radiation therapy (RT) for HER2-positive (HER2+) breast cancer brain metastases (BCBM)”
.
.
SITC’16 PPHM/Mem.Sloan Poster – same as AACR’17 4-2-17 #574…

Preclin. Anti-PS work w/collab’s MemSloan, Duke, MDA, Rutgers, Wistar, ImmunoVaccine…
See: http://investorshub.advfn.com/boards/read_msg.aspx?message_id=128740654

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