Disclosed herein are peptide sequences capable of directing adeno-associated viruses (AAV) to target specific environments, for example the nervous system and the heart, in a subject. Also disclosed are AAVs having non-naturally occurring capsid proteins comprising the disclosed peptide sequences, and methods of using the AAVs to treat diseases.

Compositions and methods are described for the delivery of therapeutic products (such as therapeutic proteins (for example, antibodies), therapeutic RNAs (for example, shRNAs, siRNAs, and miRNAs), and therapeutic aptamers) to the retina/vitreal humour in the eyes of human subjects to treat pathologies of the eye, involving, for example, recombinant viral vectors such as recombinant adeno-associated virus (rAAV) vectors.

Provided herein are methods and compositions for treatment of Batten disease. Such compositions include a recombinant adeno-associated virus (rAAV), said rAAV comprising an AAV capsid, and a vector genome packaged therein, said vector genome comprising (a) an AAV inverted terminal repeat (ITR) sequence; (b) a promoter; (c) a CLN2 coding sequence encoding a human TPP1; (d) an AAV 3′ ITR.

Provided herein are methods of treating Neuronal Ceroid Lipofuscinosis (CLN2) disease in a subject less than 3 years old. In exemplary embodiments, the method comprises administering to the subject a formulation comprising recombinant human tripeptidyl peptidase-1 (rhTPP1) in an amount effective to treat the CLN2 disease in the subject. Also provided are methods of delaying the onset of CLN2 disease, or a symptom thereof, in a subject less than 3 years old. In exemplary embodiments, the method comprises administering to the subject a formulation comprising recombinant human tripeptidyl peptidase-1 (rhTPP1) in an amount effective to delay the onset of the CLN2 disease or symptom in the subject.

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

Disclosed are a means to convert compounds having physiological or pharmacological activity and unable to pass through the blood-brain barrier into a form that allows them to pass through the blood-brain barrier, and compounds converted thereby. The means is an anti-human transferrin receptor antibody and the converted compounds are molecular conjugates between physiologically active protein or pharmacologically active low-molecular-weight compounds and an anti-human transferrin receptor antibody.

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

The present invention relates to compositions and methods for the production of a hydrolysate comprising at least one endoprotease and a tripeptidyl peptidase capable of cleaving tripeptides from the N-terminus a peptide and/or proteins having one or more of lysine, arginine or glycine in the P1 position wherein said tripeptidyl peptidase is capable of being used at a temperature between 45° C. and 70° C.

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

Formulations comprising recombinant human tripeptidyl peptidase-1 (rhTPP1) for intrathecal, intracerebroventricular, or intraocular administration, and kits comprising the same, are disclosed. Methods of using rhTPP1 in the prevention and treatment of symptoms of Neuronal Ceroid Lipofuscinosis (CLN2) disease are also disclosed. The formulations and methods are effective in halting the progression of CLN2 disease and may be used to treat subjects having CLN2 or a family history of CLN2.