A61K41/0076

Visible light-activatable nanoparticles for cancer immunotherapy and use thereof

Disclosed are visible light-activatable antitumor self-assembled nanoparticles or antitumor immunity-inducing self-assembled nanoparticles. The self-assembled nanoparticles induce potent apoptosis in cancer cells and increase their own anticancer immunogenicity, thereby maximizing their therapeutic efficacy for cancer.

Methods for manufacturing phthalocyanine dye conjugates and stable conjugates

Provided are methods for manufacturing a conjugate containing a phthalocyanine dye, including methods that include one or more steps of preparing or producing the conjugate, formulating the conjugate and packaging the conjugate. In some aspects, the manufacturing methods result in the generation of a stable conjugate. Also provided are stable phthalocyanine dye conjugates, compositions and articles of manufacture containing the stable conjugates, and methods for their administration to subjects for photoimmunotherapy. In some embodiments, the phthalocyanine dye conjugates are conjugated to a targeting molecule, such as an antibody, that targets the conjugate to a cell or pathogen, such as by binding to a cell surface protein.

LONG-CIRCULATING PSMA-TARGETED PHOTOTHERANOSTIC AGENT

Theranostic probes comprising a porphyrin-based photosensitizer, a D-peptide linker, and a urea-based PSMA-targeting ligand and methods of their use for treating and/or imaging PMSA-expressing tumors are disclosed.

TARGETED COMBINATION THERAPY

Some embodiments of the present disclosure are directed to methods and compositions for the treatment of tumors, using a combination of immunotherapeutic agents and tumor-targeting viral capsid protein assemblages comprising anti-cancer molecules conjugated to viral capsid proteins.

Epidermal growth factor receptor (EGFR) targeted photosensitizers

Compounds including a tetrapyrrolic or reduced tetrapyrrolic group/moiety and an epidermal growth factor receptor targeting group are disclosed. For example, a compound includes a tetrapyrrolic or reduced tetrapyrrolic group or moiety, a linker moiety, an epidermal growth factor receptor targeting group, and, optionally, a PET-active functional group. Uses of the compounds, for example, methods of treating a hyperproliferative tissue in an individual, and kits including one or more of the compounds are also provided.

COMBINED SONODYNAMIC AND PHOTODYNAMIC THERAPY TO TREAT DEEP SEATED CANCER AND OTHER HYPERPOLIFERATIVE DISEASE AND ULTRASOUND AND LIGHT TRIGGERED RELEASE OF NEAR INFRARED PHOTOSENSITIZERS AND CHEMOTHERAPY AGENTS FROM POLYACRLAMIDE BASED NANOPARTICLES

New advantageous compositions and methods for treatment of malignancies such as basel cell carcinoma and other skin cancers, brain tumors, head and neck cancer, kidney cancer, prostate cancer and other cancer types. The new compositions and methods may also be used for treatment of non-cancer problems such as dermatological diseases, sexual diseases, anti-fungal and antibacterial and wound healing. A new photodynamic therapy/sonodynamic therapy (PDT/SDT) combination approach using near infrared (NIR) tetrapyrrolic photosensitizers (PSs) with long wavelength absorption, in the range of 750-800 nm, that provides deeper tissue penetration. Such combinations may be postloaded onto PAA nanoparticles (NPs) for better delivery to a tumor site. A preferred sonodynamic compound is fullerene 60 but other sonodynamic compounds may be employed. The unique NP formulations of the invention can contain chemotherapeutic agents releasable by ultrasound in cancer or other hyperproliferative tissue. NP formulations may also contain tumor targeting moieties.

Multifunctional Treatment And Diagnostic Compositions And Methods
20210177970 · 2021-06-17 ·

Multifunctional compositions and methods are provided for therapeutic treatment of bacteria and cancers and for fluorescence diagnosis. Systems generate in situ reactive oxygen species such as singlet oxygen (.sup.1O.sub.2), hydroxyl radical (OH) and Juglone, and other chemotherapeutic agents. Methods provided selectively produce greater amounts of one reactive oxygen species over others. Variations are effective in aerobic, anaerobic or H.sub.2O.sub.2 rich environments and in presence of, or absence of, light. In H.sub.2O.sub.2 rich environment in absence of light, variations decompose H.sub.2O.sub.2 into O.sub.2 gas to remove excess H.sub.2O.sub.2 for elimination of hypoxic environment. Variations are formed of porphyrins, naphthalene derivatives, and metal ions, for illustration, free base tetrakis Ar substituted porphyrine core without metal or halide substitution but having hydroxyphenyl and alkyl pyridyl substituents at meso positions combined with dihydroxynaphthalene and +3 hydrated metal ions.

Photodynamic Therapy Technique For Preventing Damage To The Fovea Of The Eye Or Another Body Portion Of A Patient
20210093884 · 2021-04-01 ·

A photodynamic therapy technique for preventing damage to the fovea of the eye or another body portion of a patient is disclosed herein. In one embodiment, a treatment laser is applied to a body portion of a patient using a painting technique, the treatment laser being configured to provide paint brush-type photodynamic therapy (PPDT) using the painting technique to the body portion of the patient by emitting light of a predetermined wavelength that is absorbed by tissue of the body portion of the patient to which a photosensitizer has been applied, the body portion of the patient being afflicted by a medical condition. The application of the treatment laser to the body portion of a patient using the painting technique treats the medical condition, reduces the symptoms associated with the medical condition, and/or alleviates the medical condition.

Platinum complex, its preparation and therapeutic use

A platinum complex includes a structure of Formula (I). A method for treating a subject suffering from cancer includes a step of administering an effective amount of the platinum complex to the subject. A method for inhibiting the growth of cancer cells includes the step of contacting a population of cancer cells with an effective amount of the platinum complex. The platinum complexes are particularly suitable for treatment of cancer through, in particular, photodynamic therapy.

Conjugated polymer-based nanoprobe and preparation method and application thereof
10702612 · 2020-07-07 · ·

Disclosed is a conjugated polymer-based nanoprobe, including a fluorescent conjugated polymer, a surface ligand, a target molecule, a near-infrared fluorescent dye and optionally a gadolinium-containing magnetic resonance contrast agent. This application also discloses a method for preparing the conjugated polymer-based nanoprobe, including: adding raw materials to an organic solvent followed by ultrasonication to obtain a mixture; and adding the mixture to ultrapure water and continuously ultrasonicating the reaction mixture. The conjugated polymer-based nanoprobe can be applied in a combined molecular imaging technique of near infrared fluorescence imaging, photoacoustic imaging and magnetic resonance imaging to effectively recognize metastatic lymph nodes and normal lymph nodes, and it can be retained in the metastatic lymph nodes for a long time, meeting the requirements for long-term observation. Moreover, the near-infrared fluorescent conjugated polymer-based nanoprobe can generate reactive oxygen under irradiation, which is suitable for the photodynamic treatment of tumors.