Natural Product Chemistry and
Institute of Fundamental Studies
by Kirthi Tennakone
Director, Institute of Fundamental Studies,
Kandy
Many media reports past few days have
highlighted and exaggerated an incident at the Colombo Air Port,
of a Professor from the Institute of Fundamental Studies (IFS)
attempting to carry a plant genetic material to a foreign
destination. It is true that a Professor of the IFS in
possession of a few milligram quantities of a chemical substance
in five vials was questioned at the airport and permitted to
board the scheduled flight after taking into custody the vials
containing the chemical. The vials contained a metabolic isolate
from a fungus grown in an artificial medium, an outcome of
nearly three years of painstaking work. The fungus was an
endophytic species found in a sea weed collected from the
Southern Coast of Sri Lanka, a variety commonly found through
out the Indian coastal belt. Like penicillin most fungal
metabolites possess biological activity and further study
requires determination of the molecular structure of this
isolate. High Resolution Nuclear Magnetic Resonance Spectrometer
(NMR) a costly device used for this purpose is not available in
Sri Lanka and the student working on this project needed NMR
spectral information for her doctoral dissertation.
Unavailability of advanced analytical instrumentation prompts
scientists to seek the assistance of foreign laboratories to
elucidate the structure of complicated molecules.
Officers from the Ministry of Environment,
Forest Department and Sri Lanka Customs visited the IFS on 4th
March 2008 to conduct investigations. Contrary to reports in the
newspapers, the IFS extended fullest cooperation to these
officials. Whether the professor had breached the law by
carrying these samples to the Airport will be determined after
completion of the investigation. The professor in question is an
eminent scientist who had contributed much to the field of
natural product chemistry. IFS authorities have no evidence
whatsoever and even the faintest clue to suspect of his
involvement in a multi-million dollar racket as reported in some
newspapers. An inadvertent lapse and an intended robbery are too
further apart to be connected without a thorough examination of
available evidence.
Biodiversity, genetic materials and biopiracy
have become catch words frequently uttered without knowing the
meanings and their limitations. The totality of all kinds of
organisms confined to given region, including both genetic and
ecological variants is referred to as biodiversity. The
biodiversity of a locality cannot be measured by quantifiable
one single parameter. Clearing of forest, illicit felling,
agricultural practices and vast engineering projects lead to
inevitable loss of biodiversity. Global biodiversity declines
fast as its enrichments by evolution falls enormously below the
rate of destruction by anthropogenic activities. Collecting a
herb for a medical decoction or research has minuscule effect on
biodiversity. A genetic material implies a portion of DNA of an
organism or its entire genome. Metabolites of living systems do
not fall into this category. A clear unambiguous definition of
biopiracy does not exist. Loosely, it means uncompensated
exploitation for commercial ends of genetic resources and
related traditional knowledge. A good example is the research
going on to develop an antiviral drug from a plant growing in
the rain forests of Samoa. Pacific islanders used stems of the
plant Homoianthus acuminatus for centuries as a treatment for
yellow fever, a disease inflicted by a virulent arbovirus.
Recently, pharmaceutical research has identified a powerful
antiviral agent in the bark of this plant which could even be
active against human immunodeficiency virus (HIV). Very likely,
this finding will lead to a multi-billion dollar drug industry.
An ethically sound argument is, the Pacific Islanders (Samoa)
should also get a share of the economic benefits of this
industry. Fortunately, in this instance, agreements seem to
exist to grant a percentage of the royalty to Samoa. The
question is, the legal implementation; most biopiracy cases have
not ultimately succeeded in ensuring a significant economic
share to scientifically less developed nations. Although
international level discussions on intellectual property rights
related to genetic resources and connected traditional knowledge
are going on, agreements for a legal framework has not been
worked out yet. The effective way of getting full economic
benefits from our floral genetic pool is undoubtedly the
development of our own natural products research, so that we
ourselves could initiate industries. Discouraging our
researchers will deprive us of the potential economic benefits
from our rich genetic resources. Instead, we should honor our
scientists and provide them the research facilities.
Natural products chemistry, undoubtedly paves
the way for discovery of drugs. The IFS researchers, others in
Sri Lankan Universities and elsewhere in the world who engage in
this discipline devote themselves to a noble task, motivated by
intellectual curiosity. Many drugs derived from biological
materials relieve the dreadful human agony of cancer, infectious
diseases and other serious aliments. About forty percent of most
potent anticancer and anti-infective drugs used today come from
biological products or their synthetic modifications. We, our
parents, sons and daughters or other loved ones could one day be
victims of presently incurable diseases. Research into drug
discovery would be the only ray of hope for them. New diseases
rising up to epidemic proportions threaten us from time to time.
The antiviral agent ‘Tamiflu’ the remedy for birdflu is costly
and the search for new methods to speed the production of its
precursor from plant material continues. We need to support the
global effort towards drug production for our own safety and the
fellow human beings.
Investigations conducted to safeguard the
interests of the country and enforce the law are fully
justified. Biopiracy if it exists should be prevented and any
such case should be inquired. However, leveling unfounded and
generalized allegations as news items, against those who sweat
for the cause of healing, is a heinous crime against not only
the people of Sri Lanka but whole of humanity. It is definitely
a sin, according to teachings of all the religions. Snatching a
plant forbidden by law is a punishable offence. An act that
could deprive seriously sick of a cure, is indeed a crime.
We have a culture richly endowed with
traditional medicine that base therapies on ingredients in plant
tissue. Modern medicine uses scientific knowledge to synthesize
pharmaceuticals and also looks for active ingredients in plant
products. Recently, mathematical calculations have been invoked
to design drugs to target specific aliments. It is wrong to
inculcate the idea that most potent drugs have their origins in
plant products pilfered to the west from this part of the world.
Instead of leveling baseless accusations on academics dedicated
to a noble cause and insulting our own intellectual heritage, we
need to encourage all spheres of drug research to build an
indigenous pharmaceutical industry. Rules and regulations to
preserve the genetic imprints of endemic plants and enforcing
laws are absolutely essential. Even more important would be the
building an environment conducive to avoid most talented human
brains to drift away from our motherland. The researchers
working in this field and law enforcing authorities need to get
together to reap the fruits of floral genetic resource as well
as the scientific human resource. Being unaware of the law would
not be an excuse, however in the case of complicated and
ambiguous situations, programs needs to be conducted to brief
the researchers and general public of the laws enacted to
safeguard our genetic resources. Our researchers work under
conditions of meager facilities, badly short of advanced
instrumentation. Instead of unfounded criticism and sounds of
harsh punishment even before a case is heard, we should support
them to contribute towards the national development plan.
IFS functions under a Board of Governors Chaired
by the President and conducts Fundamental Research of highest
quality for the shake of knowledge keeping aside consultancies
and commercial ventures. Empowering the nation with knowledge
and wisdom to achieve economic advancement and elevate the
quality of life are the objectives of Mahinda Chintana. Our
culture endowed with Buddhist philosophy, traditional medicine
and engineering skills is quite conducive to fundamental
studies. IFS aims to take advantage of this esteemed quality of
our society and motivate gifted younger minds to pursue research
and contribute to implementation of the above developmental
plan. IFS is provably the most productive research institution
when judged by internationally accepted yardsticks. IFS
scientists have highest recognition and better opportunities in
foreign involvements because of good credentials gained through
quality research. Possibly, the frequent "pinching" of this
Institute is its very success. "A tree that luxuriously bear
fruits, naturally receives more stones than a barren one".
Kirthi Tennakone, Director and Research Professor of the
Institute of Fundamental Studies is a physicist