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As far as I can tell, there is no way to do this "cleanly" under program control : a notebook is not a way to program a system. However, there are a few things possible, at least in Jupyter notebooks (the old Sage notebook is unmaintained, unmaintainable and will die sooner or later : don't start new work with it, unless you need some specific feature such as multi-user access) :

* Go to a cell, and request evaluation of all cells above.

* Introduce a cell raising a runtime error (e.g. a syntax error, referencing an undefined variable, division by 0, und so weiter...)..

* Write a program. Notebook is a great way to jot down and test ideas quickly, not to polish up a paper.

For the latter, \LaTeX and Sagetex (or Pythontex (or org-babel)) are much more easy...