OCEANSIDE, Calif.--(BUSINESS WIRE)--International Stem Cell Corporation (OTCBB:ISCO), www.internationalstemcell.com, in collaboration with leading stem cell scientists, announces findings that human parthenogenetic stem cells (hpSC) and human embryonic stem cells (hESC) are similar in their undifferentiated state, and are capable of differentiating into neural lineages such as functional retinal pigment epithelial (RPE) cells that have potential to treat retinal diseases such as age-related macular degeneration.