US PATENT SUBCLASS 435 / 377
.~.~ Method of altering the differentiation state of the cell

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

325  DF  ANIMAL CELL, PER SE (E.G., CELL LINES, ETC.); COMPOSITION THEREOF; PROCESS OF PROPAGATING, MAINTAINING OR PRESERVING AN ANIMAL CELL OR COMPOSITION THEREOF; PROCESS OF ISOLATING OR SEPARATING AN ANIMAL CELL OR COMPOSITION THEREOF; PROCESS OF PREPARING A COMPOSITION CONTAINING AN ANIMAL CELL; CULTURE MEDIA THEREFORE {17}
375  DF  .~ Method of regulating cell metabolism or physiology {2}
377.~.~ Method of altering the differentiation state of the cell

DEFINITION

Classification: 435/377

Method of altering the differentiation state of the cell:

(under subclass 375) Subject matter wherein the cell is

caused to progress to a more specialized state; i.e., more differentiated; is caused to regress to a less specialized state; i.e., less differentiated; or is prevented from progressing with an increase or decrease in the degree of differentiation.

(1) Note. An example of subject matter intended for this subclass would be the use of retinoic acid to cause tumor cells to differentiate.

(2) Note. Methods of employing only substances which merely promote or inhibit cell division without altering the differentiation state of the cell are classified in this class, subclass 384.