Convergence of Chemistry and Biology

Transcription

1 Convergence of Chemistry and Biology OPCW Temporary Working Group Report Summary 8/6/2014 W. Kane, OPCW Scientific Advisory Board 1

2 Outline Background/Overview: OPCW Temporary Working Group (TWG) on Convergence Final Report: Summary Key Findings Recommendations Questions 8/6/2014 W. Kane, OPCW Scientific Advisory Board 2

3 TWG Background Why establish a TWG? To further study at a practical level -the rapid advances in life sciences (in particular, the most recent developments in the Convergence of Chemistry and Biology), and To consider the implications to the CWC, recognizing that these developments could potentially be misused TWG can draw on the expertise from the biotechnology field in order to complete the assessment. 8/6/2014 W. Kane, OPCW Scientific Advisory Board 3

4 TWG Background (2) Members appointed by the Director-General Composition: Chairs Bill Kane, Robert Mathews (1 st Mtg), 13 Members including BWC staff, biotech industry, several guest speakers Meetings: 4 Meetings in 2 years: Nov 2011 Nov 2013 Reports: TWG meeting reports: attached to Scientific Advisory Board (SAB) reports following TWG meeting Final Report: Completed and approved by OPCW Scientific Advisor Board Issued to the OPCW Director-General for review 8/6/2014 W. Kane, OPCW Scientific Advisory Board 4

5 TWG Overview TWG could only take a snapshot picture of the convergence issue Technology advances in biotechnology are moving ahead rapidly so assessments are based on what is known at this point in time. 8/6/2014 W. Kane, OPCW Scientific Advisory Board 5

6 TWG Summary of Key Points Pace of Change Enabling technologies are affecting the pace of change of Life Sciences Examples of enabling technologies include: DNA sequencing and synthesis, Informatics and computing capacity, Sharing of technical data on the Internet, and Automated robotics in research and development (R&D). This has resulted in an expanded capability to: redesign or manipulate organisms to design and engineer improved enzymes 8/6/2014 W. Kane, OPCW Scientific Advisory Board 6

7 TWG Summary of Key Points (2) Pace of Change Multidisciplinary research teams are becoming the norm, encompassing a range of technical expertise, including: chemistry, biology, physics, mathematics, computing, engineering, materials science 8/6/2014 W. Kane, OPCW Scientific Advisory Board 7

8 TWG Summary of Key Points (3) Commercialization of Bio-based Processes Biologically mediated processes studied: microbial fermentation Use of enzymes Commercial production of bulk, fine and specialty chemicals using bio-based processes is increasing: Biotechnology advances make it possible to develop high yield bio-processes High price and limited availability of some petroleum feedstocks can make bio-based processes commercially competitive Desire to use environmentally friendly green processes 8/6/2014 W. Kane, OPCW Scientific Advisory Board 8

9 TWG Summary o f Key Points (4) Commercialization of Bio-based Processes What are the implications for the Chemical Weapons Convention verification regime? TWG reviewed the meaning of the term produced by synthesis as it applies to Part IX of the Verification Annex of the Convention TWG stated: Any process designed for the formation of a chemical substance should be covered by the term produced by synthesis Should new, commercial bio-based production facilities be declared/inspected by OPCW? (needs further assessment by Verification TWG, SAB, TS and Policy Making Organs) 8/6/2014 W. Kane, OPCW Scientific Advisory Board 9

10 Summary o f Key Points (5) Use of Bio-Based Processes for Synthesis of Toxic Chemicals CWC Scheduled Chemicals metabolic pathways are known for some PSF chemicals (containing phosphorus, sulfur or fluorine) no known advantages in trying to produce classical chemical warfare agents, such as nerve agents or blister agents (CWC Schedule 1), through biological means Regarding other toxic chemicals, it is more likely that bio-based processes would be applied to produce a precursor chemical, particularly as the toxic chemical may have biocidal activity. 8/6/2014 W. Kane, OPCW Scientific Advisory Board 10

11 Summary of Key Points (6) Biosynthesis of Toxins Natural metabolic pathways have been published for production of saxitoxin, ricin (included on CWC Schedule 1 list) and many other toxins. In vitro biosynthesis of saxitoxin and ricin has been described. However, there are practical limitations with regard to scale and complexity. Obtaining ricin and small quantities of saxitoxin from their natural sources is simpler than employing metabolic engineering strategies. The threat of possible misuse of current bio-based production technology with regard to the CWC toxins is therefore currently considered low 8/6/2014 W. Kane, OPCW Scientific Advisory Board 11

12 Summary o f Key Points (7) Biosynthesis of Bioregulators Bioregulators chemicals that mediate a wide range of body functions Peptides are the largest group of bioregulators and have been the class for which commentators on the CWC have expressed most concern for misuse. Peptides could be produced using metabolic engineering and synthetic biology but the pharmaceutical industry currently regards multi-step chemical synthesis, using specialized equipment, as the most costeffective method for producing many small peptides. There are shortcomings of peptides as drugs (and by implication, for uses prohibited by the Convention) 8/6/2014 W. Kane, OPCW Scientific Advisory Board 12

13 Summary of Key Points (8) Benefits of Convergence Combined with other advances, particularly in nanotechnology, the benefits related to CWC also include: developing improved defensive countermeasures, beneficial developments in protective clothing and equipment, decontamination, medical countermeasures, and verification, detection/diagnostics 8/6/2014 W. Kane, OPCW Scientific Advisory Board 13

14 TWG Recommendations TWG made 19 recommendations in total, 6 major recommendations to the Director-General (listed below) Rec.#1: The SAB and the TS should continue to monitor advances and trends in production technologies relevant to convergence, and assess the relevance of these processes to verification under the CWC. Regular engagement with subject matter experts, e.g. from the biotechnology industry, will be required. Rec.#2: Advances in systems and synthetic biology, which have enormous potential for beneficial and commercial purposes, should be monitored by the SAB and the TS, particularly in terms of enhancing the capability and capacity to synthesise more complex chemicals (in particular toxic chemicals, toxins and bioregulators). Regular engagement with subject matter experts will be required. 8/6/2014 W. Kane, OPCW Scientific Advisory Board 14

15 TWG Recommendations to Director-General Continued (2) Rec.#3: Advances in nanotechnology, particularly as they apply to improved defensive countermeasures against Chemical Weapons, should be monitored. Rec. #4: As the convergence of chemistry, biology and other sciences is a technically complex area, consideration should be given to the development of outreach material to assist staff at States Parties permanent missions to the OPCW in understanding possible implications for the CWC. 8/6/2014 W. Kane, OPCW Scientific Advisory Board 15

16 TWG Recommendations to Director-General Continued (3) Rec.# 5: A structured approach to maintaining contacts with the BWC community should be established. Existing relationships should be further developed to bring together technical expertise in areas of common interest. Rec.# 6: With the rapid pace of advances, consideration should be given to reactivating the TWG on Convergence periodically, e.g. every 5 years prior to the SAB report to the Director-General on science and technology (S&T), in order to assess recent advances. 8/6/2014 W. Kane, OPCW Scientific Advisory Board 16

17 TWG Final Report Director-General is reviewing Link to report: Questions/comments? 8/6/2014 W. Kane, OPCW Scientific Advisory Board 17