The present disclosure provides use of a histone deubiquitinase in preparing a drug for preventing aging and treating aging-related diseases and relates to the technical field of biological medicines. The histone H2A deubiquitinase MYSM1 has a nucleotide sequence shown as SEQ ID NO. 1. It is verified that MYSM1 protein deficiency causes significant aging of mice and induces the aging-related diseases; and the MYSM1 can promote DNA injury repair, prevent cellular senescence and suppress chronic inflammation. Proved by a result of using an adeno-associated virus expressing mouse-derived MYSM1 as a gene therapy, the MYSM1 may remarkably prolong the lifespan of the mice, reduce the process and the number of senescent cells, improve normal functions of tissues and organs, reduce occurrence and development of the aging-related diseases, which proves that the MYSM1 has a good application prospect in delaying aging and treating the aging-related diseases.

In some aspects, provided herein is a method of enhancing production of interleukin-17 (IL-17), interferon gamma (IFN-γ), or both by a mammalian T cell, the method comprising contacting the cell with a C5L2 inhibitor. In some aspects, provided herein is a method of enhancing Th1 and/or Th17 responses by a mammalian T cell, the method comprising contacting the cell with a C5L2 inhibitor. In some aspects, provided herein is a method of enhancing production of interleukin-6 (IL-6), interleukin 1 beta (IL-1β), or both by a mammalian T cell or monocyte, the method comprising contacting the cell with a C5L2 inhibitor. In some aspects, provided herein is a method of decreasing suppressive activity of a T regulatory cell, e.g., a natural regulatory T (nTreg) cell, the method comprising contacting a Treg cell, e.g., an nTreg cell, with an inhibitor of C5L2.

Provided herein are methods of selective screening. In addition, various targeting proteins and sequences, as well as methods of their use, are also provided.

Provided herein are methods of selective screening. In addition, various targeting proteins and sequences, as well as methods of their use, are also provided.

Provided are compositions and methods for prophylaxis and/or therapy of ErbB2-positive cancer. The compositions include pharmaceutical preparations that contain isolated or recombinant or modified peptidase D (PEPD) proteins. The methods include prophylaxis and/or therapy of ErbB2-positive cancer by administering a PEPD to an individual who has or is at risk for developing ErbB2-positive cancer.

Methods and compositions for the treatment or prevention of amyloidosis are provided. In some embodiments, the methods comprise administering to the subject a therapeutically effective amount of at least one catabolic enzyme or a biologically active fragment thereof. Such methods and compositions may be employed to reduce, prevent, degrade and/or eliminate amyloid formation in the lysosome and/or extracellularly.

Disclosed are variants of ACE2, pharmaceutical compositions comprising the variants of ACE2, and treatment methods for reducing Angiotensin II (1-8) plasma levels and/or increasing Angiotensin (1-7) plasma levels in a subject in need thereof. The disclosed variants of ACE2 may include polypeptide fragments of ACE2 having ACE2 activity for converting AngII (1-8) to Ang(1-7). Suitable subjects suitable for the disclosed methods of treatment may include subjects having or at risk for developing diabetic and non-diabetic chronic kidney disease, acute renal failure and its prevention, chronic kidney disease, severe hypertension, scleroderma and its skin, pulmonary, kidney and hypertensive complications, malignant hypertension, renovascular hypertension secondary to renal artery stenosis, idiopathic pulmonary fibrosis, liver fibrosis such as in liver cirrhosis patients, an aortic aneurysm, cardiac fibrosis and remodeling, left ventricular hypertrophy, and an acute stroke.

The present invention relates to a combination therapy for the treatment of cancer, particularly to combinations of oligo(2-(2-ethoxy)ethoxy ethyl guanidinium chloride), poly(hexamethylendiamine guanidiniumchloride), polyetheramines, triethyleneglycol diamine, enzymes, PGPR, amino acids, antioxidants like humic acids and some natural products like phytotherapeutic plant extracts. The combination therapy of the present invention shows enhanced anti-cancerous therapeutic effects compared to the effect of each of the components administered alone. In some embodiments, the combination therapy provide for a synergistic anti-cancer effect. A liposomal drug composition comprising; A dimeric or polymeric guanidine derivative or polyetheramines, triethyleneglycol diamine, enzymes, PGPR, amino acids, antioxidants like humic acids and some natural products like phytotherapeutic plant extracts a pharmaceutically acceptable salt thereof as drug substance, and a lipid modified by polyethylene glycole (PEG).

The present invention relates to a combination therapy for the treatment of cancer, particularly to combinations of oligo(2-(2-ethoxy)ethoxy ethyl guanidinium chloride), poly(hexamethylendiamine guanidiniumchloride), polyetheramines, triethyleneglycol diamine, enzymes, PGPR, amino acids, antioxidants like humic acids and some natural products like phytotherapeutic plant extracts. The combination therapy of the present invention shows enhanced anti-cancerous therapeutic effects compared to the effect of each of the components administered alone. In some embodiments, the combination therapy provide for a synergistic anti-cancer effect. A liposomal drug composition comprising; A dimeric or polymeric guanidine derivative or polyetheramines, triethyleneglycol diamine, enzymes, PGPR, amino acids, antioxidants like humic acids and some natural products like phytotherapeutic plant extracts a pharmaceutically acceptable salt thereof as drug substance, and a lipid modified by polyethylene glycole (PEG).

A nanocomposition for use in treating a pathogen condition using phthalocyanine dye, such as IR700. A nanocomposition having IR700, an 8PEG nanoparticle and a pathogen targeting peptide. Administering a product comprising IR700 to a patient, whereby the IR700 is delivered to pathogen tissue, and found in only pathogen tissue; and administering light to activate the IR700, thereby producing an ROS.