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Michele De Palma

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Publications associées (128)

Perivascular M2 macrophages stimulate tumor relapse after chemotherapy

Ioanna Keklikoglou, Michele De Palma

Tumor relapse after chemotherapy-induced regression is a major clinical problem, because it often involves inoperable metastatic disease. Tumor-associated macrophages (TAM) are known to limit the cytotoxic effects of chemotherapy in preclinical models of c ...

American Association for Cancer Research2015

A niche role for periostin and macrophages in glioblastoma

Michele De Palma, Mario Leonardo Squadrito

Macrophages facilitate tumour progression, but it is unclear whether this capability is influenced by tumour-initiating cells. Glioblastoma stem cells are now shown to secrete periostin, a matrix protein that recruits protumoral macrophages and enhances gl ...

Nature Publishing Group2015

Cancer metastasis: Perivascular macrophages under watch

Michele De Palma, Ece Kadioglu

TIE2-expressing macrophages cluster around blood vessels and sustain tumor angiogenesis. Harney and colleagues now use live imaging of mouse mammary tumors to show that these perivascular macrophages also promote the transient opening of tumor blood vessel ...

American Association for Cancer Research2015

TRIM33 switches off Ifnb1 gene transcription during the late phase of macrophage activation

Michele De Palma, Mario Leonardo Squadrito

Despite its importance during viral or bacterial infections, transcriptional regulation of the interferon-beta gene (Ifnb1) in activated macrophages is only partially understood. Here we report that TRIM33 deficiency results in high, sustained expression o ...

Nature Publishing Group2015

Cancer: Metastasis risk after anti-macrophage therapy

Ioanna Keklikoglou, Michele De Palma

Nature Publishing Group2014

Cellular magnetic resonance with iron oxide nanoparticles: long-term persistence of SPIO signal in the CNS after transplanted cell death

Michele De Palma, Mario Leonardo Squadrito, Chiara Cianciaruso

Aim: To study the specificity of cellular MRI based on superparamagnetic iron oxide particles (SPIOs), especially within the CNS. Materials & methods: A microglial cell line was engineered for the expression of a suicide gene, the receptor of diphtheria to ...

Future Medicine Ltd2014

Assessing metastasis risk after pre-operative anti-angiogenic therapy

Michele De Palma, Daniela Biziato

Anti‐angiogenic drugs are approved for the treatment of several cancer types, generally in the inoperable locally advanced or metastatic setting and in combination with other anti‐cancer agents. Recent clinical studies also suggest that anti‐angiogenic dru ...

2014

Endogenous RNAs Modulate MicroRNA Sorting to Exosomes and Transfer to Acceptor Cells

Frederic Burdet, Michele De Palma, Mario Leonardo Squadrito, Claudio Maderna

MicroRNA (miRNA) transfer via exosomes may mediate cell-to-cell communication. Interestingly, specific miRNAs are enriched in exosomes in a cell-type-dependent fashion. However, the mechanisms whereby miRNAs are sorted to exosomes and the significance of m ...

Elsevier2014

Micromanaging restenosis by therapeutic inhibition of miR-92a

Michele De Palma, Mario Leonardo Squadrito

This editorial refers to 'Inhibition of miR-92a improves re-endothelialization and prevents neointima formation following vascular injury' by J.-M. Daniel et al., pp. 564-572, this issue. ...

Oxford Univ Press2014

Role of angiopoietin-2 in adaptive tumor resistance to VEGF signaling blockade

Ioanna Keklikoglou, Michele De Palma, Ece Kadioglu, Nicolo Rigamonti, Céline Wyser Rmili

Angiopoietin-2 (ANG2/ANGPT2) is a context-dependent TIE2 receptor agonist/antagonist and proangiogenic factor. Although ANG2 neutralization improves tumor angiogenesis and growth inhibition by vascular endothelial growth factor (VEGF)-A signaling blockade, ...

Elsevier2014

Genetic engineering of hematopoiesis for targeted IFN-α delivery inhibits breast cancer progression

Michele De Palma, Mario Leonardo Squadrito

The immunosuppressive tumor microenvironment represents a major hurdle to cancer therapy. We developed a gene transfer strategy into hematopoietic stem cells (HSCs) to target transgene expression to tumor-infiltrating monocytes/macrophages. Using a combina ...

2014

Reciprocal interactions between endothelial cells and macrophages in angiogenic vascular niches

Michele De Palma, Mario Leonardo Squadrito

The ability of macrophages to promote vascular growth has been associated with the secretion and local delivery of classic proangiogenic factors (e.g., VEGF-A and proteases). More recently, a series of studies have also revealed that physical contact of ma ...

Elsevier Inc2013

A role for angiopoietin-2 in organ-specific metastasis

Michele De Palma, Nicolo Rigamonti

Angiopoietin-2 (ANG2/ANGPT2) has recently emerged as a promising target for the inhibition of tumor metastasis. In this issue of Cell Reports, Minami et al. show that the calcineurin-NFAT pathway promotes pulmonary tumor metastasis by inducing ANG2 in the ...

Elsevier2013

PHD2 regulates arteriogenic macrophages through TIE2 signalling

Michele De Palma, Ferdinando Pucci, Mario Leonardo Squadrito

Occlusion of the main arterial route redirects blood flow to the collateral circulation. We previously reported that macrophages genetically modified to express low levels of prolyl hydroxylase domain protein 2 (PHD2) display an arteriogenic phenotype, whi ...

Wiley-Blackwell2013

TIE2-expressing monocytes/macrophages regulate revascularization of the ischemic limb

Michele De Palma, Daniela Biziato

A third of patients with critical limb ischemia (CLI) will eventually require limb amputation. Therapeutic neovascularization using unselected mononuclear cells to salvage ischemic limbs has produced modest results. The TIE2-expressing monocytes/macrophage ...

Wiley-Blackwell2013

MicroRNA-mediated control of macrophages and its implications for cancer

Martin Etzrodt, Michele De Palma, Mario Leonardo Squadrito

Deregulation of microRNAs (miRNAs) can drive oncogenesis, tumor progression, and metastasis by acting cell-autonomously in cancer cells. However, solid tumors are also infiltrated by large amounts of non-neoplastic stromal cells, including macrophages, whi ...

Elsevier Sci Ltd2013

Macrophage regulation of tumor responses to anticancer therapies

Michele De Palma

Tumor-associated macrophages (TAMs) promote key processes in tumor progression, like angiogenesis, immunosuppression, invasion, and metastasis. Increasing studies have also shown that TAMs can either enhance or antagonize the antitumor efficacy of cytotoxi ...

2013

A New Twist on Radiation Oncology: Low-Dose Irradiation Elicits Immunostimulatory Macrophages that Unlock Barriers to Tumor Immunotherapy

Douglas Hanahan, Michele De Palma, George Coukos

Tumor-infiltrating macrophages typically promote angiogenesis while suppressing antitumoral T cell responses. In this issue of Cancer Cell, Klug and colleagues report that clinically-feasible, low-dose irradiation redirects macrophage differentiation from ...

Elsevier2013

TIE2-expressing monocytes: A novel cellular biomarker for hepatocellular carcinoma?

Michele De Palma, George Coukos

Wiley-Blackwell2013

Transplanted neural stem/precursor cells instruct phagocytes and reduce secondary tissue damage in the injured spinal cord

Michele De Palma, Ferdinando Pucci, Daniela Biziato

Transplanted neural stem/precursor cells possess peculiar therapeutic plasticity and can simultaneously instruct several therapeutic mechanisms in addition to cell replacement. Here, we interrogated the therapeutic plasticity of neural stem/precursor cells ...

2012

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