Sheri
F.T. Fong, M.D., Ph.D. Assistant
Professor (Researcher), Department of Complimentary and Alternative
Medicine, and Cardiovascular Research Center, John A. Burns of School
of Medicine;
Associate Member, Natural Products and Cell Biology, Cancer Research
Center of Hawaii
M.S. (Genetics and Molecular
Biology), University of Hawaii at Manoa;
M.D. John A. Burns School of Medicine, University of Hawaii at Manoa;
Ph.D. (Cell and Molecular Biology), University of Hawaii at Manoa
MY MAIN RESEARCH
INTEREST centers around the lysyl oxidase protein
family of amine oxidases.
Lysyl oxidase (LOX) was first discovered in 1968, and
since then, most studies have focused on its role as the extracellular
matrix
enzyme responsible for catalyzing cross-link formation
in collagen and elastin. Just in the last decade, four other
members of the
LOX family have been identified, and each of the five
LOX
family members have been found to have a unique expression
profile in
various tissues. In addition, some members of this family,
including LOX, are not limited to the extracellular matrix,
and have been
found intracellularly and within the nucleus. Thus, it
is not surprising that several novel functions have been
attributed to this family, including developmental regulation,
chemotaxis,
cell growth control, and tumor development and progression.
I
am currently studying two members of this family, LOX
and lysyl oxidase-like 2 (LOXL2), and their role in tumor progression,
particularly migration and invasion of tumor cells through
the
extracellular matrix, two critical steps in cancer metastasis.
We are also currently building a collection of Hawaiian and
Polynesian plants, fruits and seaweeds, as well as their indications
for use, such as infection, inflammation and cancer. Extracts
are evaluated for active compounds that have specific biological
effects, particularly an inhibitory effect in cancer cell growth,
migration and invasion. Once an active compound is isolated,
DNA chip analysis allows for identification of the molecular
pathways targeted by these natural products.
Selected
Publications
Wang
M, Kikuzaki H, Csiszar K, Boyd CD, Maunakea A, Fong SF, Ghai
G, Rosen RT, Nakatani N, Ho CT. Novel trisaccharide fatty acid
ester identified from the fruits of Morinda citrifolia (Noni).
J Agric Food Chem 47:4880-2, 1999.
Csiszar
K, Jourdan-Le Saux C, Fong SFT, Boyd CD. Lysyl oxidase: A family
of multifunctional proteins. In: Biochemistry and Molecular
Biology of Vitamin B6 and PQQ-dependent Proteins. Iriate A,
Kagan HM, and Martinez-Carrion M, eds. Basel, Switzerland:
Birkhauser Verlag, p. 91-6, 2000.
Csiszar
K, Fong SF, Ujfalusi A, Krawetz SA, Salvati EP, Mackenzie JW,
Boyd CD. Somatic mutations of the lysyl oxidase gene on chromosome
5q23.1 in colorectal tumors. Int J Cancer 97:636-42, 2002.
Kirschmann
DA, Seftor EA, Fong SF, Nieva DR, Sullivan CM, Edwards EM,
Sommer P, Csiszar K, Hendrix MJ. A molecular role for lysyl
oxidase in breast cancer invasion. Cancer Res 62:4478-83, 2002.
Molnar
J, Fong KS, He QP, Hayashi K, Kim Y, Fong SF, Fogelgren B,
Szauter KM, Mink M, Csiszar K. Structural and functional diversity
of lysyl oxidase (LOX) and the LOX-like proteins. Biochim
Biophys Acta 1647:220-4, 2003.