The present invention relates to therapeutic immunoconjugates comprising SN-38 attached to an antibody or antigen-binding antibody fragment. The antibody may bind to Trop-2 or CEACAM5 and the immunoconjugate may be administered at a dosage of between 4 mg/kg and 16 mg/kg, preferably 4, 6, 8, 9, 10, 12, or 16 mg/kg. When administered at specified dosages and schedules, the immunoconjugate can reduce solid tumors in size, reduce or eliminate metastases and is effective to treat cancers resistant to standard therapies, such as radiation therapy, chemotherapy or immunotherapy. Surprisingly, the immunoconjugate is effective to treat cancers that are refractory to or relapsed from irinotecan.

This patent application relates to the treatment of cancer and other diseases that have a CD47+ phenotype. Treatment involves the use of radiation and a CD47-binding agent, preferably a CD47-binding form of human signal regulatory protein alpha (SIRPa) that inhibits activation of the CD47/SIRPa axis and mediates phagocytosis of CD47+ disease cells. An anti-cancer effect of a CD47 blocking agent is enhanced when combined with radiation therapy. The anti-cancer effect of a CD47 blocking agent such as SIRPaFc is enhanced when combined with radiation therapy.

The present invention relates to a composition for enhancing radiation sensitivity comprising aripiprazole as an active ingredient, and more specifically, to a composition for enhancing radiation sensitivity capable of treating cancer by acting as a radiation sensitizer when aripiprazole is combined with radiation. By administering an effective amount of aripiprazole according to the present invention in combination with radiation irradiation, it has excellent radiation sensitivity enhancing effects such as reducing cancer cell viability and inducing cancer cell death, so it can be usefully used as a radiation sensitivity enhancer.

The presently disclosed subject matter provides for methods and compositions for treating cancer (e.g., pancreatic cancer). It relates to antigen recognizing receptor (e.g., chimeric antigen receptors (CARs)) that specifically target Sialyl Lewis A (e.g., human Sialyl Lewis A), and immunoresponsive cells comprising such CARs. The presently disclosed Sialyl Lewis A-specific CARs have enhanced immune-activating properties, including anti-tumor activity.

Disclosed herein are methods of treatments with a telomerase-mediated telomere-targeting drug, 6-thio-2′-deoxyguanosine (6-thio-dG), checkpoint inhibitors and/or radiation therapy for treating cancers. eads to tumor regression in innate and adaptive immune-dependent manners in syngeneic and humanized mouse cancer models.

The disclosed method of treating a malignant solid tumor in a subject includes the steps of administering to the subject an immunomodulatory dose of a radioactive phospholipid ether metal chelate, a radiohalogenated phospholipid ether, or other targeted radiotherapy (TRT) agent that is differentially retained within malignant solid tumor tissue, and either (a) performing in situ tumor vaccination in the subject by introducing into at least one of the malignant solid tumors one or more agents capable of stimulating specific immune cells within the tumor microenvironment, or (b) performing immunotherapy in the subject by systemically administering to the subject an immunostimulatory agent, such as an immune checkpoint inhibitor. In a non-limiting example, the radioactive phospholipid ether metal chelate or radiohalogenated phospholipid ether has the formula:

##STR00001##

wherein R.sub.1 comprises a chelating agent that is chelated to a metal atom, wherein the metal atom is an alpha, beta or Auger emitting metal isotope with a half-life of greater than 6 hours and less than 30 days, or wherein R.sub.1 comprises a radioactive halogen isotope. In one such embodiment, a is 1, n is 18, m is 0, b is 1, and R.sub.2 is —N.sup.+(CH.sub.3).sub.3.

The present disclosure provides biophotonic compositions, kits and their uses. In particular, the biophotonic compositions of the present disclosure arc substantially resistant to leaching such that low amounts of chromophores present in the biophotonic composition leach out of the composition. The biophotonic compositions and their uses are useful for promoting repair of non-healing wounds.

Provided are an anticancer agent, radiosensitizer, and food composition capable of enhancing the effects of radiation therapy. The present inventors discovered that tumors shrink significantly in comparison to an untreated group and the respective monotherapy groups when treatment by burdock fruit extract containing arctigenin and radiation therapy were used in combination on mice transplanted with human pancreatic cancer cells. The anticancer agent of the present invention is an anticancer agent containing arctigenin and/or arctiin as the active ingredient, to be used in combination with radiation therapy. The arctigenin and/or arctiin may be contained as burdock, burdock fruit, burdock sprout, or forsythia, or an extract extracted from these.

The present invention relates to methods of reducing liver PD-1-expressing CD8+ T cells using PD-1 Fc fusion proteins that bind Fc receptors, as well as diagnostic, prognostic, therapeutic methods and compositions related thereto.

A flexible or elastic brachytherapy strand that includes an imaging marker and/or a therapeutic, diagnostic or prophylactic agent such as a drug in a biocompatible carrier that can be delivered to a subject upon implantation into the subject through the bore of a brachytherapy implantation needle has been developed. Strands can be formed as chains or continuous arrays of seeds up to 50 centimeters or more, with or without spacer material, flaccid, rigid, or flexible.