"I want to particularly thank all of the people who have shared their personal story of fighting cancer, or caring for loved ones with cancer or people who are currently dealing with it. Thank you for your courage and kindness."
Kaye ended by saying she was trying to rest but hoped to respond at some point in the future.
She signed off "thanks heaps. xx" with a thumbs up sign.
New of Kaye's diagnosis came as a shock to many of her Parliamentary colleagues across the political spectrum yesterday.
Prime Minister John Key said at his Monday press conference he was confident she would recover and return to Parliament.
"Nikki is young, she is very fit, she's extremely determined and she's a fighter," he told reporters at his weekly press conference.
"I'm sure she's going to get through this and will be back with us."