摘要:
The present invention concerns the use of an extract from inflammatory tissue inoculated with vaccinia virus as active component in an agent for increasing chemokine production which is useful for the treatment of AIDS. The extracts from inflammatory tissue inoculated with vaccinia virus have increasing effects in the production of chemokines such as MIP-1α, MIP-1β and RANTES which are HIV-suppressive factors released from CD8 + T cells. The extracts also have suppressive effects on SIV infection and on SIV replication. Therefore, such an extract is useful in an anti-HIV drug with new mechanisms of action which are different from those of known therapeutic agents for AIDS such as reverse transcriptase inhibitors and protease inhibitors, and an agent comprising this extract is very useful as a new drug for the treatment of AIDS with high safety.
摘要:
A method of modulating hair growth by contacting selected cells with a selected growth-modulating molecule is provided. A method for hair reconstitution or transplantation by expanding selected cells in vitro and combining them with other cells that regulate hair growth are also provided. Compositions containing a growth-modulating molecule which is synthesized by follicular cells and which undergoes hair-cycle-dependent concentration changes in hair follicles are also provided.
摘要:
A method for activating human antigen presenting cells characterized by culturing in vitro antigen presenting cells with a human origin together with at least one of glycoside compounds represented by general formula (A) or salts thereof preferably exemplified by (2S, 3S, 4R)-1-(α-D-galactopyranosyloxy)-2-hexacosanoylamino-3,4-octadecanediol; the human antigen presenting cells thus activated; methods for treating cancer or infectious diseases such as AIDS by using activated human antigen presenting cells; and the use of activated human antigen presenting cells in the production of drugs for treating these diseases. Thus, sufficient therapeutic effects can be achieved on cancer and infectious diseases such as AIDS without effecting any pulse therapy with the use of tumor antigens.
摘要:
An object of the present invention is to offer a therapeutic agent for ischemic diseases having little side effects and being capable of administering safely. The effective component of the therapeutic agent for ischemic diseases of the present invention is an extract from inflammatory tissue inoculated with vaccinia virus. An extract from inflammatory tissue inoculated with vaccinia virus. protects a cell against damage by suppressing abnormal depolarization of hyppocampal pyramidal neurons during hypoxia and so can delay the time falling into cell death. The characteristic action is not observed for normal pyramidal neurons, but is expressed only in the stage of pathema during hypoxia. Therefore, the substance of the present invention is useful as a drug to treat and prevent ischemic diseases such as cerebral infarction and the like and symptoms accompanying with neuropathy caused by ischemia.
摘要:
PCT No. PCT/US94/05844 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed May 24, 1994 PCT Pub. No. WO94/27622 PCT Pub. Date Dec. 8, 1993This invention provides a method for developing immune tolerance in xenogeneic organ graft recipients, in which lympho-hematopoietic cells from an intended organ graft recipient are differentiated within a xenogeneic surrogate, such as a fetal animal. After birth of the surrogate, the matured lympho-hematopoietic cells containing antigen specific regulatory cells, including suppressor cells, veto cells, select B cells, anti-idiotype antibodies, and other related factors responsible for antigen specific tolerance in a surrogate animal are reintroduced into the intended organ graft recipient, in conjunction with an organ transplant or a tissue transplant from the xenograft surrogate. The invention also provides an organ graft repopulated with cells from the intended organ graft recipient produced in a surrogate animal.
摘要:
Novel regimens are provided for administering foreign genetically modified allogeneic cells to a host by combining the administration of the cells with a reduced regimen of an immunosuppressive agent. Particularly, cells having a reduced level of Class I MHC antigens may be employed in a variety of cellular therapy situations, where foreign cells are engrafted to treat diseased states.
摘要:
The isolated proteins kalinin and k-laminin are disclosed to provide adhesion between epidermal keratinocytes and the underlying dermis. Purified kalinin has a molecular weight of approximately 410-495 kDa and exists in a cell-associated form (about 495 kDa) and two medium-associated forms (about 460 and 410 kDa, respectively). The k-laminin adhesion molecule is an isolated heterotrimeric laminin variant that has a molecular weight of about 650 kDa and separates on western blots into first and second fragments that are similar to the B1 and B2 fragments of laminin and a third fragment of 190 kDa that is immunoreactive with a monoclonal antibody BM165, an antibody that is specific to kalinin. Methods of using kalinin or k-laminin for improving adhesion of transplanted keratinocytes to an underlying substrate are disclosed.
摘要:
Tissue produced by culturing isolated epithelial cells (preferably squamous cells) will retain the ability to express the phenotypic characteristics of the isolated cells when the tissue is transplanted into a new region of body surface. Thus defects in the epithelium (e.g., burns, ulcers and congenital abnormalities) can be treated by obtaining a sample of living epidermal cells from a region of the patient's epithelium (e.g., sole of the foot, palm of the hand or scalp) having a site-specific phenotypic characteristic (e.g., a thick stratum corneum or a stratum lucidum positioned between the stratum granulosum and the stratum corneum) which is desired for the graft at the defective region. These epidermal cells are cultured, according to methods well-known to those skilled in the art, to produce transplantable living cells, e.g. an aggregation or sheet of living tissue. This tissue is then transplanted to the site of the defect where it expresses the phenotypic characteristic in a region of the patient's epithelium that may or may not ordinarily manifest this characteristic.
摘要:
A method and apparatus for forming a permanent, composite skin replacement consisting of an epidermal component and a porous, resorbable, biosynthetic laminated dermal membrane component for use in wound repair. The dermal membrane is formed in the apparatus, which permits regulation of variables affecting membrane structure. The dermal membrane may be modified to incorporate biologically active molecules to enhance wound repair and to reduce infection when the skin replacement is applied to a wound.