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MECHANISMS OF MOTILITY AND METASTASIS In BREAST CANCER
Funder
National Health and Medical Research Council
Funding Amount
$209,505.00
Summary
The broad aim of this proposal is to elucidate novel molecular mechanisms of breast cancer cell motility that are relevant to metastasis or the spread of cancer. The function of two genes will be studied. We propose that (1) reduced on-random motile (ROM) regulates the speed of cancer cell movement, and (2) Neural Wiskott-Aldrich syndrome protein (N-WASP) regulates the directional component of cell movement. We will relate the function of ROM and N-WASP to rapid, linear walking along collagen fi ....The broad aim of this proposal is to elucidate novel molecular mechanisms of breast cancer cell motility that are relevant to metastasis or the spread of cancer. The function of two genes will be studied. We propose that (1) reduced on-random motile (ROM) regulates the speed of cancer cell movement, and (2) Neural Wiskott-Aldrich syndrome protein (N-WASP) regulates the directional component of cell movement. We will relate the function of ROM and N-WASP to rapid, linear walking along collagen fibres in live tumours and to breast cancer metastasis to the lung. ROM will be inhibited in breast cancer cells and we expect increases in both the speed of cell movement and metastasis. Therefore, ROM functions as a suppressor of metastasis. Inhibition of N-WASP, however, is expected to compromise both the directionality of cell movement and metastasis. N-WASP is therefore, a promoter of metastasis. At the completion of this work, the regulatory mechanisms of motility and metastasis by ROM and N-WASP will be defined. This will facilitate the development of biologically targeted agents for ROM and N-WASP that can be used to control metastasis. In addition, these agents that target the motility pathway are appropriate for use in combined therapy with agents that target a different pathway such as survival or growth. This will significantly improve disease control rates or the proportion of patients with partial or complete disease regression. This proposal addresses the National Health Priority, cancer, and related National Research Priority, ageing well and ageing productively, where in the longer term, we will be able to create new and much needed therapy for metastasis.Read moreRead less