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How Mitochondria Get Their Membranes Bent
Mitochondria are the powerhouses of cells. Underneath their smooth surface they harbor an elaborately folded inner membrane. It holds a multitude of bottleneck like invaginations, which expand into elongated cavities (cristae). The narrow shape of the entrance or pore to the cristae ("crista junction") allows separation of the intracristal space and storage of molecules. Cytochrome c, for example, an important signaling protein in programmed cell death (apoptosis), is stored in this compartment. When apoptosis is triggered, the pores enlarge and cytochrome c is released into the cytosol. Thus, understanding of how the pore diameter and the shape of the inner membrane are regulated on a molecular basis is of great relevance to a better understanding of mitochondrial function in general. Recently, in cooperation with other research teams, the group of Prof. Andreas Reichert, who has been appointed as professor for Mitochondrial Biology to the Goethe University within the Cluster of Excellence Macromolecular Complexes in 2007, has identified two proteins linked in an antagonistic manner that are relevant for governing inner membrane structure.
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Fanconi Anemia: Genetically Corrected Blood Cells Obtained From Patients' Skin Cells
Collaboration research carried out by the teams of Jordi Surrallés, Universitat Autònoma de Barcelona (UAB); Juan Carlos IzpisÃôa-Belmonte and Angel Raya, Centre for Regenerative Medicine of Barcelona (CMRB); and Juan Antonio Bueren, Centre for Energetic, Environmental and Technological Research (CIEMAT), has resulted in the generation of blood cells from skin cells of patients with a genetic disease known as Fanconi anemia. The process is based on gene therapy and cell reprogramming techniques in which cells similar to embryonic stem cells known as induced pluripotent stem (iPS) cells can be generated. The research article was published in this week"s digital version of Nature.
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Oncolytics Biotech(R) Inc. Announces Publication Of Research On Synergistic Activity Of Reovirus And Chemotherapy In NSCLC
Oncolytics Biotech Inc. (TSX: ONC, NASDAQ: ONCY) ("Oncolytics") reported today that Dr. Shizuko Sei et al. published the results of their work examining reovirus and chemotherapy against human non-small cell lung cancer (NSCLC). The paper, entitled "Synergistic Antitumor Activity of Oncolytic Reovirus and Chemotherapeutic Agents in Non-Small Cell Lung Cancer Cells" appears online in the July 14, 2009 issue of Molecular Cancer.
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HIV/AIDS Vaccine Coalition Urges Continued Funding For Research Amid Economic Crisis

A recently released AIDS Vaccine Advocacy Coalition report says that although there has been a renewed focus on discovery, innovation and basic science in vaccine research, action is needed to ensure that research funding continues during the economic downturn, VOA News reports. AVAC executive director Mitchell Warren said the report is "about putting all the pieces together ... not just the search for an AIDS vaccine, but in fact the entire HIV prevention response." He added, "[T]he good news is we have some new pieces of the puzzle, and we"re expecting additional new pieces of understanding through research this year." Warren said that AVAC believes HIV/AIDS vaccine research is in "one of the most exciting times," with "new energy, new commitment to unlocking some of the basic scientific roadblocks that have impeded our ability to find a vaccine." For example, a study released earlier this week examined efforts to produce a vaccine through genetic transfer. Regarding the study, Warren said, "It doesn"t mean we have an AIDS vaccine, but it means we have an entirely new approach to trying to deliver protection." Warren said that the field of HIV/AIDS vaccine research has shown a renewed commitment since Merck canceled its vaccine trial in 2007. According to Warren, the new AVAC report examines knowledge gained from the Merck study, which has provided "an unimaginable amount of information." Meanwhile, the effect of the economic crisis on research funding is concerning, Warren said, adding, "I believe that every dollar spent is going to be held up to a greater scrutiny as budgets tighten and as funders have to re-examine their priorities." According to Warren, without renewed funding commitments, "we will not only incur a much greater public health catastrophe, but I would argue that the economic catastrophes to come, if we don"t respond aggressively to HIV, will actually have repercussions that will ... make the economic crisis pale in comparison" (DeCapua, VOA News, 5/18). The report is available online. Reprinted with kind permission from http://www.kaisernetwork.org. You can view the entire Kaiser Daily Health Policy Report, search the archives, or sign up for email delivery at http://www.kaisernetwork.org/dailyreports/healthpolicy. The Kaiser Daily Health Policy Report is published for kaisernetwork.org, a free service of The Henry J. Kaiser Family Foundation. © 2009 Advisory Board Company and Kaiser Family Foundation. All rights reserved.


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