a)Genetic Engineering:
Unfortunately, we haven’t, totally on our own, produced a
single genetically modified organism of commercial value, even though we have
had enormous capabilities to do so. We have increasingly done well in the last
decade in the direction of producing useful protein drugs using genetically
engineered microorganisms grown under highly confined conditions. The first
product to be produced in this manner was Hepatitis B vaccine, Shanvac-B, by
Hyderabad based Shantha Biotechnics Pvt. Ltd. The product came in the market in
1997. Shantha Biotech invested Rs 16.5 crore for bringing out its first product
Shanvac-B. It now has a pipeline of products on the anvil. In fact, Shanferon
(Interferon alpha 2b), its second product is already in the market, and another
product, Human Insulin, should be in the market by next summer. Other producers
of Hepatitis B vaccine, such as Bharat Biotech and Wockhardt have followed
Shantha Biotech. Wockhardt, on the other hand, is now also producing
Erythropoietin through genetic engineering. In the area of protein drugs
produced through genetically engineered microorganisms, we are poised to witness
an exponential growth in the country based totally on our own expertise with new
players constantly joining in the run. What one would like to see in the area,
in national interest, is the new players producing products that are not so far
produced (or not planned to be produced in the immediate future) by the existing
players.
b)Enzyme technologies:
We have done well in the enzyme technologies. The leadership
is being provided by Biocon of Bangalore under the stewardship of Dr Kiran
Mazumdar Shaw, and Bangalore Genii, a pioneering and highly successful company
set up by Dr P Babu, who left a successful and lucrative career in Molecular
Biology to do so.
c)DNA technologies:
Amongst various DNA technologies, India has provided
outstanding leadership in the field of DNA fingerprinting. This is probably the
most publicized technology in the area of modern biology developed in the
country. I will, therefore, not say anything more about it except that the
credit for the development of this technology that has already brought
immeasurable social benefit to the country, goes to Dr Lalji Singh, the present
director of the Center for Cellular and Molecular Biology (CCMB) at Hyderabad (
Shantha Biotechnics Hepatitis B vaccine was also developed at the CCMB). Today
in India, we also have a large number of laboratories (both in the public and
private sector) with facilities for high throughput sequencing which would allow
us to sequence genomes.
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Pushpa M. Bhargava, one of India’s most brilliant
scientists, has founded and directed the Centre for Cellular and Molecular
Biology (CCMB), Hyderabad.His scientific contributions
include the preparation and characterization of primary liver cell
suspensions, identification of proteins from the seminal plasma and
extensive characterization of one of these proteins and seminalplasmin. He
has been awarded with Padma Bhushan, the Legion d’ Honneur, the Wattumul
Memorial Prize and Goyal Prize.
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Companies such as Avesthagen set up by Dr Villoo
Morawala-Patell in Bangalore, also have a high level of expertise in the
development of new molecular markers for plant identification and
characterization for commercial purposes. DNA-based probes for diagnosis of
certain inherited disorders are already being used in the country, though there
is no organization yet that would produce these probes commercially.
d)Assisted Reproductive Technologies (ART):
Over the last ten years, there has been a mushrooming of
infertility clinics which claim to have therequired facilities for artificial
insemination using husbands’ or donors’ semen, in vitro fertilization,
intra-cytoplasmic sperm injection, and techniques involving egg donation and
surrogate motherhood. This explosion of infertility clinics in the country has
led to an immense variation in the quality of service provided, from outstanding
to extremely poor. This situation led the Indian Council of Medical Research to
prepare guidelines for accreditation and supervision of infertility clinics in
the country. These guidelines have been debated around the country and now await
appropriate legislation by the Government of India that would make the finalized
guidelines mandatory. What is satisfying is that India is, by and large, at par
with the rest of the regard to ART.
e)New drug delivery system:
Some of the leading drug companies in India such as Sun
Pharma and Shantha Biotech have been actively involved in developing and
marketing new formulations which would make the intake of the drug more
convenient and effective.
f)Marine biotechnology:
The first company in the country totally devoted to marine
biotechnology is Shantha Marine. The company is in the production of its first
marine biotech product, Beta-carotene made by using marine algae. The product is
already in the market. The expertise in this area in the country is of a very
high order and, perhaps, comparable with the best anywhere.
g)Rational drug design:
Dr Reddy’s Laboratories in Hyderabad discovered a new
anti-diabetic drug for the first time in the country using the rational drug
design approach. The drug is now under clinical trials. There are other major
pharma companies (Such as Ranbaxy and Sun Pharma) in the country that are
engaged in new drug discovery using rational drug design based on advances in
biotechnology and modern biology.
| In the area of
protein drugs produced through genetically engineered microorganisms,
India is poised to witness an exponential growth based totally on our
own expertise with new players constantly joining in the run. |
h)Probiotics:
There are several companies in the country making probiotics,
such as Actobacilli, as Over-the-Counter (OTC) drugs. One of them, Microbax,
located in Hyderabad, is exclusively devoted to the production of such
probiotics.
i)Bioinformatics:
There has been a great upsurge of activity in the area of
bioinformatics in the country, in the research going on in both educational
institutions and in industry. The bioinformatics group of an information
technology major in the country has already identified a promising target for
the development of a new drug against a most common disease in India.
Let us finally, look at the emerging areas in biotechnology,
which have not yet been commercialized, and see what our country is doing in
these areas.
(1)Stem-cell research:
Fortunately several major basic research laboratories in the
country as well as commercial organizations are investing substantial time,
energy, effort and resources in stem-cell research area. The ultimate objective
of this area is being able to grow the desired organs in vitro to take care of
the organ transplantation needs of the people. Some of these institutions are
the CCMB in Hyderabad, the National Center for Biological Sciences in Bangalore,
and the National Center for Cell Science in Pune. Reliance Life Sciences, it is
believed, is also investing heavily in this area.
(2)Increasing Photosynthesis efficiency:
Unfortunately, virtually no significant work is being done in
this area in the country.
(3)Certain DNA technologies:
We have not so far made any investment whatsoever in the
development of DNA- based computers, the foundation of which was laid in 1994,
when the well-known travelling salesman problem was solved using DNA computing.
Since then, an enormous amount of effort has been put in, in this area of
several countries, including Israel. We also do not have any investment today in
developing antisense technologies.
| The ultimate
objective of the stem-cell research area is being able to grow the
desired organs in vitro to take care of the organ transplantation needs
of the people. |
(4)Use of phenomenon like circadian rhythms in developing
individualized medicine:
Although there has been at least one group—that of Dr MK
Chandrashekar at Madurai (now in Bangalore)— that has done outstanding work on
circadian rhythms in certain animals. There has been, however, very little work
done on circadian rhythms in human beings that will allow us to design
individual-specific drug delivery protocols. Similarly, there is very little
investment in the country in looking at certain promising new drug delivery
systems such as electrical patches.
(5)Vaccination using DNA:
There is, fortunately, at least one group- at the Indian
Institute of Science, Bangalore- that has been working in this area but we need
expansion of research and development in this very promising field.
(6)Nanobiotechnology:
We haven’t really made a beginning so far in this area
which has immense promise in developing new and viable protocols for drug
delivery, enzyme immobilization and DNA transformation.
What I have said in this and the preceding article is that we
are trying to be there; we have enormous assets but we have to expand our
activities in a focussed manner and use all the assets we have—human,
infrastructural, natural, and financial—to the best of our advantage. For this
we would need to set up systems of cooperation between the various players—biotech
industries in both the public and the private sector, the financial institutions
and the venture capitalists, the national laboratories under the various
agencies and the departments concerned of the Government. Each member of these
various sectors will need to learn, to speak and interact with each other to
optimize their collective output in their interest and in national interest. As
of today, virtually all the efforts are in the private sector with little
dialogue between the various players in this sector. There is no public sector
biotechnology company in the country, even though the Department of
Biotechnology was set up in 1986 precisely for this purpose. We need to have
investments in biotechnology in the public sector, for what a public sector
company in biotechnology can do, a private sector company cannot, and
vice-versa. We should remember that the status of industry in the country in the
private sector would not have been what it is, had it not been for the
investment by the government in the core sectors. Certain areas in biotechnology
must be regarded as belonging to such core sectors.
PM Bhargava
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