Page 37 - IB July 2018
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Indepth


             Tonga College.  My journey for my PhD start-  on the availability of funds. I graduated with   ed from `Eua was based on the results of
             ed back in 2001 when I started my undergrad   my first degree (BSc) in 2004 from USP   our chemical analysis in the laboratory.
             study for my Bachelor in Science (Chemistry   and then I went back to Tonga and took up a   We collected marine organisms from dif-
             and Biology) at the University of the South   teaching opportunity at a secondary school   ferent geographical locations in Tonga and
             Pacific (USP). However, my interest in   until 2007. In 2008, I received the New Zea-  chemically investigated these organisms;
             Chemistry goes back to my childhood when   land Aid Scholarship to do a Masters’ Degree   we realised that the chemical contents of the
             my mother and grandparents used terrestrial   (MSc) in Chemistry at VUW. I graduated   organisms collected from `Eua have unique
             plants and herbal remedies to treat my sibling   in 2010 and then I returned to Tonga and   and novel chemistry. We then focused on
                 and myself when we were sick. The   continue teaching for another 2 years before   `Eua and went back there for another dive
                         effectiveness of these tradi-  I went to Japan for one year to pursue a   collection trip. The main organism in which
                               tional medicines of-  teaching certificate at Kagoshima University.   I worked on is found in other places in the
                                    ten made me   In 2013 I received the New Zealand Com-  Pacific. There have been several researches
                                        wonder   monwealth Scholarship to undertake my   conducted on the same organism, which
                                                PhD study at VUW.                  were collected from Vanuatu, Fiji, PNG and
                                                                                   Indonesia. However, the differences in our
                                                IB: Please talk about the new natural   research techniques led to the discovery of
                                                products that you have isolated that   these new anti-cancer compounds during
                                         about   have “unique and interesting anti-  my research.
                                   the  healing   cancer properties.” What are these
                              properties of these   “unique and interesting” properties?  IB:   What’s the theory behind ancient
                          plant-based  medicines,                                  islands in terms of new chemical dis-
                       which encouraged me to pursue   Taufa: Unfortunately, at this time, I have   coveries and how many such islands
                     my studies further with a focus on   a confidential agreement with VUW on the   are there in the Pacific?
                                                outcome of my research and therefore I
                     the Chemistry behind the medi-
                     cine. I was fortunate to receive the   cannot discuss its details.  However, through   Taufa: Although the findings from the ma-
                   New Zealand Scholarship to pursue   my research I isolated and identified several   rine organisms from `Eua were interesting,
                                                chemical compounds or natural products
                   my Masters’ Degree at the Victoria   with anti-cancer properties.    we cannot however, prove that those inter-
                    University of Wellington (VUW) and                             esting findings were based on the age of the
                    that was where I was introduced to   IB:   With your scientific knowledge   island. But we believe that the ancient islands
                    the field of Natural Products. When   and now your contribution to cancer   in the Pacific Ocean can host organisms that
                    I completed my Masters, I knew   research, what are your views on   can produce interesting and novel chemistry,
                    the Pacific has a lot to offer in this   herbal/traditional medicine – is there   which may link to evolutionary advantages of
                    field and so I decided to go back and   still a place for it today?  the host organisms. Apart from ‘Eua, we also
                   pursue further studies leading up to                            had dives in waters of Tongatapu and Vava’u.
                   the completion of my PhD.    Taufa:  I strongly support the use of herbal/
                                                traditional medicine. Most of the drugs used   IB: So, what happens next, now that
                  IB:  Have you always been study-  nowadays are based on or inspired by tradi-  you have discovered these new natu-
                                                                                   ral products?
                 ing or did you work in the field   tional medicine, which were mostly sourced
                for a while before going back to   from herbal and terrestrial plants. To this day
               further your studies?            I still use the traditional medicines on my   Taufa: More research is needed, that’s
                                                                                   for sure. These marine organisms usually
                                                children and so I believe there is still a place
              Taufa: My studies were always depending   for it in this world.      produce these natural products in minor
                                                                                   quantities therefore more research need to
                                                                                   be conducted on these marine organisms,
                                                IB:   An interesting part of your re-  in order to isolate more of these natural
                                                search was the find on the ancient
                                                ‘Eua Island. Has this always been a   products for further research.
                                                known aspect in scientific chemical
                                                research and what are some unique   IB: When do you think the outcome
                                                 organisms found in `Eua with unique   of your research will materialise into
                                                    chemical properties, apart from   actual products available on shelves?
                                                        sponges, that are not found
                                                           anywhere else in Tonga?  Taufa: I really do hope it will materialise
                                                                                   into something that can contribute to the
                                                                 Taufa:  Choosing   fight against cancer, a deadly disease that
                                                                    to focus on the   few of my close relatives have succumbed
                                                                      marine  or-  to. However, there’s still a lot of work that
                                                                         ganisms   needs to be done but they will all be subject
                                                                          collect-  to the availability of funding.


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