Macrophage News and Research

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A macrophage is a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.

ChemoCentryx commences enrollment in CCX354 Phase 2 clinical trial for RA

ChemoCentryx, Inc. today announced that it has begun enrolling patients in a Phase 2 clinical trial of CCX354, an orally-bioavailable, novel, small molecule drug designed to specifically target the CCR1 chemokine receptor for the treatment of rheumatoid arthritis (RA).

16 Dec 2009

Scientists present new research on adipocyte regulation

The ninth Colloque Médecine et Recherche of la Fondation Ipsen devoted to Endocrinology, held in Paris on December 4, 2009, has reviewed the recent progress in understanding the regulation of fat storage in the body and the consequences of the breakdown of this regulation.

14 Dec 2009

Researchers discover new strategy against invasive parasite

Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered a possible strategy against an invasive parasite that infects more than a quarter of the world's population, including 50 million Americans.

4 Dec 2009

Study to test anti-tumor effects of AEOL 10150 initiated

Aeolus Pharmaceuticals, Inc. announced today the initiation of a study to test the anti-tumor effects of AEOL 10150 when combined with radiation and chemotherapy in nude mice bearing human non-small cell lung cancer (NSCLC) xenografts.

18 Nov 2009

Indefinite expansion of adult cells without recourse to stem cell intermediates possible

Is the indefinite expansion of adult cells possible without recourse to stem cell intermediates? The team led by Michael Sieweke at the Centre d'immunologie de Marseille Luminy (Université Aix-Marseille 2 / CNRS / INSERM) has proved that this is the case by achieving the ex vivo regeneration for several months of macrophages, specialized cells in the immune system.

16 Nov 2009

Peregrine Pharmaceuticals' bavituximab PS-targeting antibody demonstrates potent anti-tumor activity

Peregrine Pharmaceuticals, Inc. today announced that a newly published study shows that a phosphatidylserine (PS)-targeting antibody similar to the company's lead product candidate bavituximab demonstrated potent anti-tumor activity when combined with radiation in a model of aggressive brain cancer, doubling the survival time of test animals and producing long-term cures.

11 Nov 2009

Researchers discover cells that protect the respiratory tract from developing an allergic response

According to the great paradigms of immunology, asthma, an allergic disease of the respiratory system, should always develop upon exposure to airborne antigens that are constantly being inhaled. However, the fact that 94 % of the Western population does not develop the disease suggests that as yet undefined mechanisms protect the respiratory tract from developing an allergic response. A team of researchers at University of Liege (Belgium), GIGA Research Center, led by Professor Fabrice Bureau, has shown that asthma is inhibited by regulatory macrophages, a cell population never previously described.

10 Nov 2009

Study demonstrates potential of human Serum Amyloid P to block very aggressive fibrotic pathology

Promedior, Inc., a leader in the development of novel therapeutics for the treatment of fibrotic diseases and tissue remodeling, announced today the publication of results from preclinical studies demonstrating that human Serum Amyloid P (hSAP) potently inhibited fibrosis in two independent model systems of kidney fibrosis.

5 Nov 2009

Promedior granted European Orphan Medicinal Product Designation for PRM-151

Promedior, Inc., a leader in the development of novel therapeutics for the treatment of fibrotic diseases and tissue remodeling, announced today that the European Commission has granted Orphan Medicinal Product Designation to its lead drug candidate PRM-151 for use in the prevention of scarring post glaucoma filtration surgery.

29 Oct 2009

Pregnant women with symptoms of depression have a stronger biological reaction to the seasonal flu vaccine

Pregnant women with significant symptoms of depression tend to have a stronger biological reaction to the seasonal flu vaccine than do women with lower depression levels, according to a new study.

29 Oct 2009

Sperm can transmit HIV to macrophages and dendritic cells

Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina.

27 Oct 2009

Doctoral candidate sheds new light on the biology of Leishmania parasites

Professor Albert Descoteaux's team at Centre INRS - Institut Armand-Frappier has gained a better understanding of how the Leishmania donovani parasite manages to outsmart the human immune system and proliferate with impunity, causing visceral leishmaniasis, a chronic infection that is potentially fatal if left untreated.

24 Oct 2009

Findings may lead to new vaccine strategies for pulmonary tularemia

Immunologists at the University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh of UPMC and the have found a unique quirk in the way the immune system fends off bacteria called Francisella tularensis, which could lead to vaccines that are better able to prevent tularemia infection of the lungs. Their findings were published today in the early, online version of Immunity.

23 Oct 2009

Scientists find cause for lupuslike disease in mice

Macrophages, the scavenger cells of the body's immune system, are responsible for disposing of dying cells. Stanford University School of Medicine researchers have identified one pathway in this important process in mice that, if disrupted, causes a lupuslike autoimmune disease.

19 Oct 2009

RXi Pharmaceuticals presents new preclinical data from its advanced RNAi therapeutic platform

RXi Pharmaceuticals Corporation, a biopharmaceutical company pursuing the development and commercialization of proprietary therapeutics based on RNA interference (RNAi), today announced the presentation of new preclinical data from its advanced RNAi therapeutic platform at its Annual Investor Event held in New York City on Monday, October 5, 2009.

9 Oct 2009

Plexxikon commences patient dosing in PLX3397 Phase 1 clinical trial

Plexxikon Inc. today announced that dosing of cancer patients with PLX3397 has started in a Phase 1 clinical trial. PLX3397 is a novel, oral investigational drug for treating multiple diseases, including metastatic cancer and rheumatoid arthritis.

9 Oct 2009

New study leads to the development of first prophylactic treatment for leishmania

Leishmania is a deadly parasitic disease that affects over 12 million people worldwide, with more than 2 million new cases reported every year. Until recently, scientists were unsure exactly how the parasite survives inside human cells. That mystery has now been solved according to a new study published in Science Signaling by a team led by Dr. Martin Olivier - a scientist at the Research Institute of the McGill University Health Centre (RI-MUHC) and McGill University.

7 Oct 2009

Enzyme that helps make tuberculosis resistant to a human's natural defense system identified

Researchers at Iowa State University have identified an enzyme that helps make tuberculosis resistant to a human's natural defense system. Researchers have also found a method to possibly neutralize that enzyme, which may someday lead to a cure for tuberculosis.

3 Oct 2009

Misregulation of SPAK protein may contribute to B-cell lymphoma development

A group led by Dr. Michael Teitell at UCLA has demonstrated that misregulation of the protein SPAK may contribute to B-cell lymphoma development. Their report can be found in the October 2009 issue of the American Journal of Pathology.

28 Sep 2009

Moderately elevated levels of ROS positive in fruit flies

It has been known for decades that reactive oxygen species (ROS) - ions or very small molecules that include free radicals - damage cells. But much to their surprise, Jonsson Cancer Center researchers found that in Drosophila, the common fruit fly, moderately elevated levels of ROS are a good thing.

25 Sep 2009