Evidence map›Paper›PMID 36293552›Full record

ArticleInternational journal of molecular sciences2022

Aberrant Transferrin and Ferritin Upregulation Elicits Iron Accumulation and Oxidative Inflammaging Causing Ferroptosis and Undermines Estradiol Biosynthesis in Aging Rat Ovaries by Upregulating NF-Κb-Activated Inducible Nitric Oxide Synthase: First Demonstration of an Intricate Mechanism.

Stephen Cho Wing Sze, Liang Zhang, Shiqing Zhang, Kaili Lin, Tzi Bun Ng, Man Ling Ng, Kai-Fai Lee, Jenny Ka Wing Lam, Zhang Zhang, Ken Kin Lam Yung

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.4field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
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  4. The inflammatory clock: how cGAS-STING ticks in the aging ovary.Frontiers in cell and developmental biology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 3 countries.

Stephen Cho Wing SzeDepartment of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.ORCID 0000-0002-4561-1214
Liang ZhangSchool of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR 999077, China.
Shiqing ZhangDepartment of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.
Kaili LinDepartment of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.ORCID 0000-0002-3842-6408
Tzi Bun NgSchool of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR 999077, China.
Man Ling NgDepartment of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.
Kai-Fai LeeDepartment of Obstetrics and Gynaecology, LKS Faculty of Medicine, HKU, Pokfulam, Hong Kong SAR 999077, China.
Jenny Ka Wing LamDepartment of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.ORCID 0000-0003-2997-010X
Zhang ZhangDepartment of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.
Ken Kin Lam YungDepartment of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.
Hong Kong Baptist University · HKChinese University of Hong Kong · HKHKU-Pasteur Research Pole · HK

Funding

General Research Funding, University Grants Committee (UGC), Hong Kong SAR Government 12102919Tier 1 and Tier 2 Start-up Grant, Hong Kong Baptist University RC-SGT2/18-19/SCI/002
6 · The paper itself

Abstract

We report herein a novel mechanism, unraveled by proteomics and validated by in vitro and in vivo studies, of the aberrant aging-associated upregulation of ovarian transferrin and ferritin in rat ovaries. The ovarian mass and serum estradiol titer plummeted while the ovarian labile ferrous iron and total iron levels escalated with age in rats. Oxidative stress markers, such as nitrite/nitrate, 3-nitrotyrosine, and 4-hydroxy-2-nonenal, accumulated in the aging ovaries due to an aberrant upregulation of the ovarian transferrin, ferritin light/heavy chains, and iron regulatory protein 2(IRP2)-mediated transferrin receptor 1 (TfR1). Ferritin inhibited estradiol biosynthesis in ovarian granulosa cells in vitro via the upregulation of a nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and p65/p50-induced oxidative and inflammatory factor inducible nitric oxide synthase (iNOS). An in vivo study demonstrated how the age-associated activation of NF-κB induced the upregulation of iNOS and the tumor necrosis factor α (TNFα). The downregulation of the keap1-mediated nuclear factor erythroid 2-related factor 2 (Nrf2), that induced a decrease in glutathione peroxidase 4 (GPX4), was observed. The aberrant transferrin and ferritin upregulation triggered an iron accumulation via the upregulation of an IRP2-induced TfR1. This culminates in NF-κB-iNOS-mediated ovarian oxi-inflamm-aging and serum estradiol decrement in naturally aging rats. The iron accumulation and the effect on ferroptosis-related proteins including the GPX4, TfR1, Nrf2, Keap1, and ferritin heavy chain, as in testicular ferroptosis, indicated the triggering of ferroptosis. In young rats, an intraovarian injection of an adenovirus, which expressed iron regulatory proteins, upregulated the ovarian NF-κB/iNOS and downregulated the GPX4. These novel findings have contributed to a prompt translational research on the ovarian aging-associated iron metabolism and aging-associated ovarian diseases.

Indexed as

FerroptosisNF-kappa BAgingAnimalsApoferritinsEstradiolFemaleFerritinsIronIron Regulatory Protein 2Kelch-Like ECH-Associated Protein 1NF-E2-Related Factor 2NitratesNitric Oxide Synthase Type IINitritesOvaryApoferritinsEstradiolFerritinsIronIron Regulatory Protein 2Kelch-Like ECH-Associated Protein 1NF-E2-Related Factor 2NF-kappa BNitratesNitric Oxide Synthase Type IINitritesPhospholipid Hydroperoxide Glutathione PeroxidaseReceptors, TransferrinTransferrinTumor Necrosis Factor-alphaferritinferroptosisNF-κB/iNOSovarian oxi-inflammagingtransferrin

Identifiers

PMID36293552
PMCPMC9604315
OpenAlexW4307268226

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.