
Tuesday May 28, 2002
6:00 pm to 10:00 pm
Sheraton Palo Alto Hotel
Reservations required by noon
Friday May 24, 2002
The Detection of Cancer Biomarkers from 10,000 Cells Using Ion Trap MS with Laser Capture Microdissection
William S. Hancock
Proteomic Division of ThermoFinnigan
Co-authors:
Shiaw-Lin Wu, Proteomic Division of ThermoFinnigan
Geoffrey G. Goodrich, and Steven T. Kunitake, Life Science
of Arcturus
Abstract
Introduction
In the shotgun sequencing approach, proteins extracted from cells or
tissues are digested directly with trypsin. The digested mixture
can then be separated by capillary reversed-phase HPLC on-line with mass
spectrometry (LC-MS). Thus, matching the database with the experimental
MS/MS spectra from a LC-MS run can identify many different proteins from
a single sample.
Methods
Laser Capture Microdissection is a powerful tool for isolating pure
cell populations from complex tissue. This cell capture is accomplished
on the PixCell II LCM system through the attachment of desired cells to
laser activated thermoplastic film. We demonstrated the mating of
these two technologies by testing a model system. Approximately, 10,000
SKBR3 cells were captured and proteins extracted from the capture device
by incubation with a guanidine isothiocyanide based buffer containing beta-mercaptoethanol.
The extracted proteins were reduced, alkylated, and then digested with
the following enzymes: Lys-C, then trypsin, with a series of dilution protocols.
The entire digest mixture was loaded directly on a capillary reversed-phase
column following by a series of washing procedures and analyzed by on-line
LC/MS (ion trap mass spectrometer). Protein identifications were
made with Bioworks (Sequest) and a probability based software.
Preliminary Data
Cancer biomarkers, including the Her2 receptor, and a substantial number
of other proteins were preliminary identified by this approach. Initially,
more than 200 proteins were identified with 1 or more peptides and approximately
130 proteins were identified with an additional filter of Xcorr >/ = 1.5
and an uncertainty value of 1/1,000,000 or P value < 0.0001%.
This approach may pave the way in the future to the study of proteomics
of small tissue samples.
Background
EDUCATION & PROFESSIONAL POSITIONS
2001 Editor–in-Chief, Journal of Proteomic Research, Amer. Chem.
Soc.
2000 Vice President Proteomics Development, ThermoQuest Inc.
1996 Professor of Chemical Engineering, Adjunct, Yale University
1994-present Principal Laboratory Scientist, HP Laboratories.
1985-1994 Director, Analytical Chemistry & Staff Scientist,
Genentech Inc.
1984 Visiting Scientist at Bureau of Drugs, FDA, Washington
DC
1972-1985 Reader in Chemistry, Biochemistry, Massey University,
New Zealand.
1963-1970 B.Sc.1966, Ph.D.1970, in Organic Chemistry and Biochemistry,
D.Sc.1993, University of Adelaide, South Australia
CONTRIBUTIONS TO INDUSTRY-STANDARDS & ORGANIZATIONS
• Advisory board of San Jose State Univ.,Univ. of Kansas, Barnette
Inst., Boston, Institute of Analytical Chemistry, Innsbruck, Austria
• Permanent Scientific Committee for HPCE, HPLC, WCBP Symposium Series
• Scientific Committee for APCE'96, HPCE 96, PBA 96, HPLC ‘95, ‘97,
‘98, ‘99, 2000, HPCE Kyoto’97, Drug Analysis ‘98
• Californian Separation Science Society, President, 1990 - present
• Past and present member of 12 Journal Boards including Analytical
Chemistry (1992-2001) and Journal of Chromatography
• Chairman of the HPLC96; HPCE97&2000 and The Analysis of Well
Characterized Biotechnology Pharmaceuticals”, 1997 &1998
• Chairman of the United Way Campaign for HP Labs, 1997
HONORS AND AWARDS:
• Martin Gold Medal in Separation Science (British Chromatographic
Society, 2000)
• Barnett Lecturer, NE University, Boston (1992)
• Honorary Fellow of Massey University, New Zealand
• Walter Burfitt Prize and Research medal, Royal Society of New South
Wales for Pure or Applied Scientific Research (1984).
PUBLICATIONS:
Over 160 scientific publications, including 114 manuscripts accepted
in International Journals, 34 review chapters, 7 books and 9 patents, as
well as over 150 invited presentations at International Scientific Meetings
Meeting details
| Date: | Tuesday | May 28, 2002 |
| Time: | 6:00 pm | Social hour, registration (no-host cocktails) |
| 7:00 pm | Dinner | |
| 8:00 pm | Lecture | |
| Dinner: | Choice of: | Marinated Chicken Dinner |
| Vegetarian Dinner | ||
| includes | various side dishes & dessert | |
| Cost: | $25.00 | BAMS members. Dinner reservations must be made by noon Friday May 24, 2002 |
| $35.00 | Non-members. Dinner reservations must be made by noon Friday May 24, 2002 | |
| $15.00 | Students only. Dinner reservations must be made by noon Friday May 24, 2002 |
Note: 2002 dues need to be paid to obtain member price. Dues ($20) may be paid while registering for dinner.
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625 El Camino Real
Palo Alto, CA 94301
650-328-2800
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