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Nuclear pore regulation of leukemia cell metabolism and survival

Award Number: R21CA244028
ORGANIZATION: NATIONAL CANCER INSTITUTE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 12/01/2019
PERIOD OF PERFORMANCE END DATE: 02/28/2022

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Nuclear pore regulation of leukemia cell metabolism and survival - PROJECT SUMMARY The transport of molecules in and out of the nucleus is an essential cellular process that occurs through multiprotein channels called nuclear pore complexes (NPCs). By controlling the exchange of proteins and RNAs across the nuclear envelope, NPCs have an indirect control of gene regulation that strongly impacts many processes including cell growth and proliferation. NPCs also regulate chromatin organization, DNA repair and DNA replication and, thus, play an important function in the maintenance of genome integrity. Having such critical roles in cellular homeostasis it is not surprising that many cancer cells show alterations in NPCs and their components. But, even though abnormalities in NPCs have long been observed cancer cells, how this these alterations affect nuclear pore function and whether they contribute to malignant transformation is mostly unknown. Understanding how alterations in NPCs affect cellular function is a critical step towards establishing how changes in the nuclear transport machinery are exploited to favor malignant transformation. Our previous work uncovered that the tissue-specific NPC component Nup210 acts as an anti-apoptotic factor in specific cell types, including muscle cells, neurons and T lymphocytes. We have identified that several leukemias show an up-regulation of this tissue-specific NPC component, and that Nup210 is important for leukemic transformation. We hypothesize that increased levels of Nup210 provide transformed hematopoietic cells with a survival advantage that contributes to leukemogenesis. In this proposal we seek to uncover how Nup210 promotes cell survival and leukemic transformation by characterizing its role in the regulation of leukemia cell metabolism (Aim1), and by establishing the signaling/survival pathways regulated by Nup210 in these cells (Aim 2). Besides offering a novel perspective on nuclear pore complex function and providing evidence on the molecular mechanisms exploited by these structures to promote cancer cell survival, we expect our work will result in the identification of specific differences between the nuclear transport machinery of normal and cancer cells that could lead to the development of new anti-cancer therapies.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2022 ( Subtotal = $0 )
2022	2021	SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE	10901 N TORREY PINES RD	LA JOLLA	CA	92037	SAN DIEGO	USA	Cancer Biology Research	000	2	4/14/2022	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2021 ( Subtotal = $227,906 )
2021	2021	SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE	10901 NORTH TORREY PINES RD	LA JOLLA	CA	92037	SAN DIEGO	USA	Cancer Biology Research	000	2	11/20/2020	NON-COMPETING CONTINUATION	$216,510
2021	2021	SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE	10901 NORTH TORREY PINES RD	LA JOLLA	CA	92037	SAN DIEGO	USA	Cancer Biology Research	001	2	1/22/2021	NON-COMPETING CONTINUATION	$11,396
														Subtotal = $227,906

Issue Date FY: 2020 ( Subtotal = $273,488 )
2020	2020	SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE	10901 NORTH TORREY PINES RD	LA JOLLA	CA	92037	SAN DIEGO	USA	Cancer Biology Research	001	1	1/23/2020	NEW	$19,013
2020	2020	SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE	10901 NORTH TORREY PINES RD	LA JOLLA	CA	92037	SAN DIEGO	USA	Cancer Biology Research	000	1	11/13/2019	NEW	$254,475
														Subtotal = $273,488

Grand Total All Awards = $501,394

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Nuclear pore regulation of leukemia cell metabolism and survival

Award Number: R21CA244028

ORGANIZATION: NATIONAL CANCER INSTITUTE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 12/01/2019

PERIOD OF PERFORMANCE END DATE: 02/28/2022

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