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Exhibit 10.55

SECOND AMENDMENT OF
SHARE EXCHANGE AND CONTRIBUTION AGREEMENT

This Second Amendment is entered into as of November 30, 2012 and amends that
certain Share Exchange and Contribution Agreement, as previously amended (the
Agreement), among LifeMap Sciences, Inc., a California corporation (the Company)
and Alfred D. Kingsley and Greenway Partners, L.P. (collectively, Investor).

1.           The definition of Second Outside Date found is Section 1(j) of the
Agreement is amended to read:  “Second Outside Date” means December 14, 2012.

2.           All other terms of the Agreement remain in full force and effect.

IN WITNESS WHEREOF, the parties have executed this Amendment as of the day and
year first written above.
 
 
LIFEMAP SCIENCES, INC.
 
 
By:
/s/ David Warshawsky                                
 

 
Title:
Chief Executive Officer                               
 

 
/s/ Alfred D. Kingsley                                               
                       
Alfred D. Kingsley

 
Greenway Partners, Ltd.

 
By:
Greenhouse Partners, L.P.,

its general partner

 
By:
/s/ Alfred D. Kingsley                 
 

Alfred D. Kingsley, General Partner
 
 

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