It is an object of the present invention to provide a therapeutic agent or a diagnostic agent for cancer, which has high selectivity to cancer and also has low toxicity or little side effects. According to the present invention, provided is a therapeutic agent or a diagnostic agent for cancer, comprising photosynthetic bacteria.

Method and kit for topical treatment of a skin infection, in particular of superficial skin infections, caused by Staphylococcus aureus. The method comprises the steps of applying a photosensitizer to at least a part of the skin affected by the infection, and subjecting said part of the skin to first photons with a majority energy between 2.8 eV and 3.5 eV at a first energy level; and second photons with a majority energy between 1.24 eV and 1.65 eV at a second energy level, the ratio between the first and the second energy levels being in the range from about 10:1 to 2:1. By the method efficient treatment of Staphylococcus aureus infections can be achieved without the administration of topical antibiotics.

The present invention provides an eco-friendly smart photosensitizer comprising a conjugate of hydroxypropyl methylcellulose and porfimer sodium photosensitizer, and a photo-stem cell therapy product comprising the photosensitizer. The photosensitizer of the present invention can be advantageously used in various fields including anticancer therapy, stem cell therapy, and the like, without side effects.

The present disclosure provides biophotonic topical compositions and methods useful in phototherapy. In particular, the biophotonic topical compositions of the present disclosure are substantially resistant to leaching such that very low amounts of chromophore(s) present in the biophotonic composition leach out of the composition. The biophotonic compositions and the methods of the present disclosure are useful for promoting wound healing and skin rejuvenation, as well as treating acne and various skin disorders.

The present disclosure is directed to methods and compositions for the diagnosis and/or treatment of tumors, such as ocular tumors, using virus-like particles conjugated to photosensitive molecules.

Disclosed is a method for treating a condition associated with hyperproliferating cells, the method including the steps of administering to a subject having the condition a composition including at least one cannabinoid receptor agonist, optionally administering to the subject a photodynamic compound, and administering radiation to the subject in whom the at least one cannabinoid receptor agonist is present so as to treat the condition.

The present disclosure is directed to methods and compositions for the diagnosis and/or treatment of tumors, such as ocular tumors, using virus-like particles conjugated to photosensitive molecules.

A composition and method directed to the treatment of bacterial infections is provided.

A method for destroying cells and/or microorganisms in an organism includes the following steps: (a) administering to the organism a composition including a sonosensitizing compound containing at least one transition metal with three bidentate ligands; and (b) exposing the sonosensitizing compound in the organism to ultrasound, wherein the ultrasound is effective to activate the sonosensitizing compound to destroy at least one of the cells and the microorganisms in the organism. The ultrasound is preferably used in conjunction with electromagnetic therapies comprising photodynamic therapy, low-level laser therapy, and radiation therapy. The ultrasound is preferably administered at a duty cycle in the range from 5% to 95% at a power density of 10 W/cm.sup.2 and a frequency in the range from 10 Hz to 10 MHz.

The present invention provides methods for guiding preservation of human neurons or human nerves during surgery by administering a fluorescently-labeled peptide that specifically binds to the human neurons or human nerves. The invention further provides human neuron or nerve targeting molecules comprising fluorescently-labeled peptides that specifically bind to human neurons or human nerves and compositions thereof.