levulinic acid/neoplasms

BACKGROUND Visceral pleural invasion (PL) is a prognostic factor in lung cancer. In the lung, lymph flows along the pleura, in addition to the flow toward the pulmonary hilum just as the pulmonary arteries and veins run toward it. Even with the same tumor diameter, a PL1 or higher level of pleural

Photodynamic therapy (PDT) is still an experimental modality using red light in conjunction with a systemic or topical photosensitizer. The photosensitizers have a longer retention time in malignant tumors compared with the normal surrounding tissue. Irradiation with a red light at wavelength of 630

OBJECTIVE The detection of malignant tumours relies on a variety of diagnostic procedures including X-ray images and, for hollow organs, endoscopy. The purpose of this study was to present a new technique for non-invasive tumour detection based on tissue fluorescence imaging. METHODS A clinically

5-Aminolevulinic acid (5-ALA) and its methyl ester (5-ALA-Me) at mM concentration levels induce oxidative stress via the production of reactive oxygen species (ROS). Human cancer cell lines (MCF-7 and HepG2) incubated in the dark in the simultaneous presence of 5.0 mM or more 5-ALA or 5-ALA-Me (for

Combination therapy with multiple drugs or/and multiple assistant treatments has become a hot spot in cancer therapy. In this study, a new type of core-shell structured dual-drug delivery system based on poly (lactic-co-glycolic acid) (PLGA, inner cores) and hyaluronic acid (HA, outer shells) was

Electroporation and the associated phenomenon of electrofusion have been widely adapted as tools to a broad range of biomedical research and therapy. In this article, we summarize our adaptation of the electroporation and electrofusion technology in two fronts of cancer research and treatment. The

A pH-responsive anticancer drug polymer conjugate p(aspartate)-graft-p(ethylene glycol)-dodecylamine-hydrazone-(adriamycin-levulinic acid) is synthesized as a magnetic resonance imaging (MRI)-visible and pH-sensitive drug delivery system. Being pH-sensitive, the anticancer drug ADR are stable in the

Cancer is a major health obstacle around the world, with hepatocellular carcinoma (HCC) and colorectal cancer (CRC) as major causes of morbidity and mortality. Nowadays, there isgrowing interest in the therapeutic use of natural products for HCC and CRC, owing to the anticancer activity of their

Mouse erythroleukemia (Mel) cells are particularly sensitive to mutagenic agents between 18 and 24 h from the start of induction (Foresti, M.L. Gaudio, G. Geraci and P. Manduca (1986) Inhibition of dimethyl sulfoxide induced erythropoietic differentiation of murine erythroleukemia cells in culture.

An experimental model for the study of porphyric neuropathy is presented. Injection of either tetraphenyl-porphinesulfonate (TPPS), hematoporphyrin derivative (HpD), or delta-amino-levulinic acid (ALA) into mice resulted in markedly decreased motor nerve conduction velocity (MNCV). THe MNCV returned

Most applications of photodynamic therapy (PDT) in gastroenterology to date have used porfimer sodium as the photosensitizing agent. For destroying small lesions in the wall of the gastrointestinal tract in inoperable patients, it has proved to be most effective, but attempts to achieve