On September 6, 2018 Twentyeight-Seven Therapeutics (28-7), a biotechnology company focused on modulating non-coding RNA (ncRNA) biology to develop treatments for cancer and other diseases, reported the successful completion of its $65 million Series A financing (Press release, Twentyeight-Seven Therapeutics, SEPT 6, 2018, View Source [SID1234529351]). Founding investor MPM Capital and Novartis Venture Fund co-led the financing. They were joined by additional investors including Johnson & Johnson Innovation – JJDC, Inc., Vertex Ventures HC, Longwood Fund, and Astellas Venture Management. The funding will be used to advance 28-7’s lead program, aimed at the discovery and development of small molecules that increase the levels of the tumor suppressor microRNA (miRNA), Let-7, into serious cancer indications.
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"This strong financing round was achieved thanks to the new biological understanding and impressive scientific data around non-coding RNA produced by our four scientific founders and the progress the 28-7 team has made since it was founded two years ago," said Kazumi Shiosaki, Ph.D., founding President and Chief Executive Officer, 28-7. "Our experienced investors realize the promise in this new field of therapeutics and in the robust leads produced by our founders, who have made many of the seminal discoveries in this field, and by the exceptional scientists within the company."
In addition, 28-7 announced that Shomir Ghosh, Ph.D., has joined as its Chief Scientific Officer. Most recently CSO and a founding scientist at IFM Therapeutics, Dr. Ghosh has 25 years of scientific research, drug discovery and development experience in biotech and large pharma, and has successfully delivered multiple compounds into preclinical and clinical development in the immunology, oncology and CNS therapeutic areas.
"I am incredibly excited to join 28-7 and support the advancement of its lead program," said Dr. Ghosh. "I look forward to working with Kazumi and our accomplished team and Board as we discover new ways to fight cancer and grow our operations."
28-7’s initial focus is on modulating miRNAs, which are short ncRNAs that inhibit target gene expression by suppressing mRNA translation and/or promoting mRNA decay. It is now well recognized that miRNAs are directly involved in cancer initiation, progression, and metastasis. 28-7’s technology does not focus on directly targeting the RNA itself or on developing oligonucleotides, but rather targets RNA modulating proteins (RMPs), enabling the use of small molecule drug candidates with broader access to cells and tissues. Let-7 is an miRNA that suppresses the translation of oncogenes in cells, and low levels of this miRNA are correlated with greater cancer aggressiveness. The company’s leading protein target is Lin28, an RMP that reduces the levels of Let-7, and has been shown to be an oncogene, promoting cellular transformation and tumorigenesis. 28-7 is developing first-in-class drugs that inhibit Lin28’s activity and thus raise levels of Let-7 for treatment of various cancers.
The company’s core technology comes from its four founding scientists, all leading researchers in RNA biology and cancer:
George Daley, M.D., Ph.D. ─ Dean of the Faculty of Medicine and Professor of Medicine, Biological Chemistry and Molecular Pharmacology, Harvard Medical School
Richard Gregory, Ph.D. ─ Professor of Biological Chemistry and Molecular Pharmacology, and Pediatrics, Harvard Medical School
Frank Slack, Ph.D. ─ Professor of Pathology, Harvard Medical School, Professor of Pathology and Director of Institute of RNA Medicine, Beth Israel Deaconess Medical Center
Piotr Sliz, Ph.D. ─ Associate Professor of Pediatrics and of Biological Chemistry and Molecular Pharmacology, Harvard Medical School
This founding group has been collaborating for years and has made substantial contributions to the science of ncRNA biology, including elucidating the role of ncRNAs in disease and identifying new RMP targets for drug discovery programs.
"Our founders have made important scientific contributions to the field of ncRNA biology, including the discovery of the Lin28/Let-7 pathway and its role in normal development, metabolism, and malignancy. Overall, our studies have established Lin28/Let-7 as a major regulatory pathway in stem cells and cancer," said George Daley, M.D., Ph.D., 28-7’s co-founder and Chairman of the company’s Scientific Advisory Board, and Dean and Professor of Medicine and Biological Chemistry and Molecular Pharmacology, Harvard Medical School. "We felt that the time was right to move these insights from the laboratory to pharmaceutical development, and we are very pleased by the progress the company achieved in the first two years of its existence. With this impressive round of funding and our continued support, 28-7 will unlock the therapeutic potential of our work."
In addition to Dr. Shiosaki, several investors will join 28-7’s Board of Directors, including:
· Luke Evnin, Ph.D. ─ Managing Director and co-founder, MPM Capital
· Briggs Morrison, M.D. ─ Executive Partner, MPM Capital and CEO of Syndax Pharmaceuticals, Inc.
· Carolyn Ng, Ph.D. ─ Principal, Vertex Ventures HC
· Michal Silverberg, M.B.A. ─ Managing Director, Novartis Venture Fund