Title:Truncated Lactoferricin Peptide Controls Cervical Cancer Cell
Proliferation via lncRNA-NKILA/NF-κB Feedback Loop
Volume: 29
Issue: 3
Author(s): Yuan Pan*, Yuting Jiang, Yingli Cui, Jihong Zhu and Yang Yu
Affiliation:
- Reproductive Medical Center, The First Hospital of Jilin University, Changchun 130021, China
Keywords:
Long non-coding RNA, cervical cancer, truncated lactoferricin peptide, lncRNA-NKILA, nuclear factor kappaB (NF-κB), cell proliferation.
Abstract:
Background: Lactoferricin peptide (LP) has been reported to control cancer cell proliferation.
NF-κB interacting lncRNA (NKILA) is a tumor suppressor in several cancers.
Objective: We aimed to explore the potential function of the truncated LP (TLP) in the prevention
of cervical cancer cell proliferation.
Methods: Bioinformatics analysis via PPA-Pred2 showed that 18-aa N-terminus of truncated lactoferricin
peptide (TLP18, FKCRRWQWRMKKLGAPSI) shows higher affinity with nuclear factor
kappaB (NF-κB) than LP. The effects of LP and TLP18 on cervical cancer cells SiHa and HeLa
and the related mechanisms were explored by investigating NF-κB and lncRNA-NKILA.
Results: TLP18 shows an inhibitory rate up to 0.4-fold higher than LP on the growth of cervical
cancer cells (P<0.05). NKILA siRNA promoted cell growth whether LP or TLP18 treatment
(P<0.05). TLP18 treatment increases the level of lncRNA-NKILA and reduces the level of NF-κB
up to 0.2-fold and 0.6-fold higher than LP (P<0.05), respectively. NKILA siRNA increased the levels
of NF-κB, cleaved caspase-3, and BAX (P<0.05). TLP18 increased apoptotic cell rate up to
0.2-fold higher than LP, while NKILA siRNA inhibited cell apoptosis cell growth even LP or
TLP18 treatment.
Conclusion: Truncated Lactoferricin peptide controls cervical cancer cell proliferation via lncRNA-
NKILA/NF-κB feedback loop.