An apoptosis investigator
Pathological apoptosis is linked to neoplasia and neurodegeneration. Sarit Larisch discovered ARTS, a mitochondrial protein involved in regulating apoptosis. Shaheen Lakhan is inspired by her passion for research and teaching
Fact file
Name—Sarit Larisch
Position—Head of the Apoptosis and Cancer Research Laboratory, Rambam Medical Center, teaching hospital of Technion, Israel Institute
of Technology
Biography—Her team discovered ARTS (apoptosis related protein in transforming growth factor β signalling pathway) and found that it
functions as a tumour suppressor protein. She started SimeTRA Pharm, a small biotechnology company focused on developing ARTS
peptidomimetics, which penetrate cancer cells and induce selective apoptosis
What is known about apoptosis?
Apoptosis is an essential process in the development of multicellular organisms and for maintaining homoeostasis in normal
cells. The roles of apoptosis include sculpting structures during development; deletion of unneeded cells and tissues; regulation
of growth and cell number; and the elimination of abnormal and potentially dangerous cells. Apoptosis provides a stringent
and highly effective “quality control mechanism” that limits the accumulation of harmful cells, such as self reactive lymphocytes,
virus infected cells, and tumour cells. On the other hand, inappropriate apoptosis is associated with a wide variety of diseases,
including AIDS, neurodegenerative disorders, and ischaemic stroke. Current knowledge on the involvement and contribution of
apoptosis or its aberrant regulation in a wide variety of diseases is extensive, but much still needs to be investigated.
Why should clinicians become familiar with apoptosis?
Apoptosis plays a part at the start of many diseases and pathological syndromes. That is why clinicians should be aware of
the molecular and subcellular events that are responsible for the disease they are treating. Someone who understands the complexity
of disease at all possible levels is a better clinician.
Why have we not seen clinical applications almost 30 years after the discovery of apoptosis?
A lot is being done on the translational side, in particular, using knowledge about apoptotic signalling pathways to develop
new drugs for cancer. Apoptosis provides a defence mechanism against cancer and degenerative disorders, such as liver disease.
Most if not all cancer cells develop mechanisms to escape apoptosis. Almost all currently available cancer drugs act through
the induction of apoptosis, albeit often with suboptimal efficiency and at the cost of high general cytotoxicity. Advances
in understanding the precise molecular mechanisms that govern the regulation of apoptosis provide new opportunities for developing
highly potent and specific cancer drugs. Currently 50 biotech companies are developing apoptosis based cancer drugs.
Are scientists doing a good job of explaining science to the masses?
I cannot testify for all scientists. Some are doing that job better than others, as in any profession. Science is the art
of life, and this art—with all its remarkable complexity—should be transferred to all students and every audience. Yet it
is the responsibility of both the scientists and their target audiences to ask questions, to learn more, and to want to know
even more. It is the job of teachers and lecturers to fragment science into its simplest pieces to make it comprehensible
to everyone.
How does passion play a part in research and medical education?
Passion is one of the absolute prerequisites for a good scientist. If you are passionate about your work, you transfer that
passion to your students. Good lecturers present themselves and their attitudes as well as their knowledge. If you are persuasive
in showing your students how exciting science is, the details matter less. You give students the tools to be curious, to ask
the right questions, and to be interested enough to look for the answers themselves. That is the real goal.
If you weren’t a scientist what would you do?
I cannot see myself doing anything but science. But a prerequisite for being a scientist is being curious. I would describe
myself as an extremely curious person. Everything interests me. I love reading books and could spend all my days and most
of my nights reading. But if I had the time I would learn more about theoretical physics and history. I also love listening
to music and watching movies—and, most importantly, spending time with my kids and husband.
Competing interests: None declared.
Provenance and peer review: Not commissioned; externally peer reviewed.
Shaheen Lakhan executive director Global Neuroscience Initiative Foundation, Los Angeles, CA, USA
Email: slakhan@gnif.org
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