Abstract: A compound of formula (I) and its antitumor application are disclosed. The compounds of formula (I) have degradation and inhibitory effects on ALK target proteins. They are mainly composed of four parts: the first part, ALK-TKI, being compounds with ALK tyrosine kinase inhibitory activity; the second part, LIN, being different kinds of linker (Linker); the third part, the ULM, being a small molecule ligand (ULM, ubiquitin ligase binding moiety) with ubiquitination of VHL, CRBN or other proteases; and the fourth part, the group A, being a carbonyl group or absent, which covalently bond ALK-TKI to LIN, wherein LIN and ULM are covalently bonded. A series of compounds designed and synthesized by the present disclosure have wide pharmacological activities, have functions of degrading ALK protein and inhibiting ALK activity, and can be used for related tumor treatment.

Abstract: The present invention provides an application of a drug or a pharmaceutical composition in the treatment of cancers showing high expression of PIWI and/or an NMD complex protein, such as gastric cancer. When applied in the treatment of cancers showing high expression of PIWI and/or an NMD complex protein, such as gastric cancer, the drug or the pharmaceutical composition of the present invention not only can effectively treat cancers, particularly gastric cancer, but also has higher specificity and will not cause harm to normal cells and body functions.

Abstract: A compound of formula (I) and its antitumor application are disclosed. The compounds of formula (I) have degradation and inhibitory effects on ALK target proteins. They are mainly composed of four parts: the first part, ALK-TKI, being compounds with ALK tyrosine kinase inhibitory activity; the second part, LIN, being different kinds of linker (Linker); the third part, the ULM, being a small molecule ligand (ULM, ubiquitin ligase binding moiety) with ubiquitination of VHL, CRBN or other proteases; and the fourth part, the group A, being a carbonyl group or absent, which covalently bond ALK-TKI to LIN, wherein LIN and ULM are covalently bonded. A series of compounds designed and synthesized by the present disclosure have wide pharmacological activities, have functions of degrading ALK protein and inhibiting ALK activity, and can be used for related tumor treatment.

Abstract: Provided methods for diagnosing and treating cancer by reducing the biological activity and/or expression of P-element induced wimpy testis-like protein 4 (PIWIL4), and related compositions and methods.

Abstract: Provided methods for diagnosing and treating cancer by reducing the biological activity and/or expression of P-element induced wimpy testis-like protein 4 (PIWIL4), and related compositions and methods.

Abstract: A family of isolated and purified proteins and nucleic acids are disclosed. Particularly, piwi family proteins and cDNAs encoding the same are disclosed. Recombinant host cells, recombinant nucleic acids, recombinant proteins and transgenic animals are also disclosed, along with methods of producing each. Isolated and purified antibodies to piwi family homologs, and methods of producing the same, are also disclosed. piwi family gene products are characterized as having activity in the growth, proliferation and self-renewing division of stem cells, and proliferation of primordial germ cells. Thus, therapeutic, screening, culturing and transgenic methods involving these activities are also disclosed.

Abstract: A family of isolated and purified proteins and nucleic acids are disclosed. Particularly, piwi family proteins and cDNAs encoding the same are disclosed. Recombinant host cells, recombinant nucleic acids, recombinant proteins and transgenic animals are also disclosed, along with methods of producing each. Isolated and purified antibodies to piwi family homologs, and methods of producing the same, are also disclosed. piwi family gene products are characterized as having activity in the growth, proliferation and self-renewing division of stem cells, and proliferation of primordial germ cells. Thus, therapeutic, screening, culturing and transgenic methods involving these activities are also disclosed.

Abstract: A family of isolated and purified proteins and nucleic acids are disclosed. Particularly, piwi family proteins and cDNAs encoding the same are disclosed. Recombinant host cells, recombinant nucleic acids, recombinant proteins and transgenic animals are also disclosed, along with methods of producing each. Isolated and purified antibodies to piwi family homologs, and methods of producing the same, are also disclosed. piwi family gene products are characterized as having activity in the growth, proliferation and self-renewing division of stem cells, and proliferation of primordial germ cells. Thus, therapeutic, screening, culturing and transgenic methods involving these activities are also disclosed.

Abstract: This invention discloses an apparatus and method for producing microcavitational activity in aqueous fluids for non-invasive macromolecule delivery into living cells. A standard electrohydraulic shock wave lithotripter is fitted with an adjustable ring reflector that shares the same foci as the standard lithotripter hemi-ellipsoidal reflector. A small portion of the spherical shock wave, generated by the spark discharge at the first focus (F1), is reflected and diffracted by the ring reflector, resulting in a weak preceding shock wave approximately 8.5 &mgr;s in front of the lithotripter shock wave reflected and diffracted by the hemi-ellipsoidal reflector. The peak negative pressure of the preceding weak shock wave or pulse at F2 can be adjusted from −0.96 to −1.91 MPa, using an output voltage of 25 kV. Living cells are exposed to the preceding shock wave and the lithotripter shock wave.