# Genetic Linkage in Lupus

> **NIH NIH R01** · CINCINNATI CHILDRENS HOSP MED CTR · 2020 · $390,000

## Abstract

In 27 years, “Genetic Linkage with Lupus” (AI024717) has contributed >300 publications to genetics and
other phenomena of Systemic Lupus Erythematosus (SLE) and related disorders. There are 53 published SLE
risk loci being intensively studied by a small community of dedicated scholars and another ~70 SLE risk loci to
be published soon. SLE cannot be fully understood or therapies and preventions designed using these insights
until the mechanisms are known explaining why these genetic associations exist. Since regulatory regions
dominate as SLE risk loci, we reasoned that there could be shared relationships among SLE risk loci with
individual gene regulatory proteins (GRPs) encoded not only by the human host but also by Epstein-Barr virus,
the best candidate for SLE etiology. If so, then mechanistic studies would be compellingly important.
 We found a shared set of about 23 mostly known inflammatory process gene regulatory proteins (GRPs)
binding to DNA sequences in transformed B cell lines at as many as half (26 of 53) of the SLE risk loci with
effect magnitudes substantially larger than any individual genetic association (4<enrichment ratios (ER)<12;
10-8>p>10-42). Many of the shared set of GRPs are also associated with Epstein-Barr virus (EBV) infection and
transformation of human B cells, including an EBV encoded gene product. Our preliminary data suggest that
there are shared SLE generating mechanisms operating across multiple loci, providing fundamental and novel
molecular interactions for etiologic understanding and therapeutic intervention. The newly discovered
relationships are with loci and not alleles. Genetic associations are with alleles. If the shared set is directly
relevant to disease risk, then allelic differences must be present. In Aim 1 we propose to concentrate AI24717-
28 to -32A1 on characterizing models of the shared set of GRPs by systems biology approaches and new
technology applications including, the generation of credible sets at select SLE risk loci, the measurement of
the ratio of allele specific DNA sequences bound by selected GRPs, GRP DNA binding motifs, addition of other
regulatory molecules such as microRNAs and long-noncoding RNAs, and incorporation of newly discovered
SLE risk loci in an effort to improve on the present model of GRP association with SLE loci. In Aim 2 we will
experimentally establish the structure of the regulatory complex and relate this to allelic differences in SLE risk
gene expression at specific loci. We will apply standard methods of electrophoretic mobility shift assays
(EMSAs), DNA affinity precipitation assays (DAPAs), Western blot, chromatin immunoprecipitation (ChIP-Seq
& ChIP-qPCR), and mass spectrometry. We will generate chromatin manipulated cell lines to establish
structure and allelic differences and the role of EBV. We will identify the molecular interactions required to form
the postulated shared regulatory complex, thereby providing inviting targets for therapeutic innovation...

## Key facts

- **NIH application ID:** 9941023
- **Project number:** 5R01AI024717-32
- **Recipient organization:** CINCINNATI CHILDRENS HOSP MED CTR
- **Principal Investigator:** KENNETH M KAUFMAN
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $390,000
- **Award type:** 5
- **Project period:** 1987-07-01 → 2021-05-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/9941023

## Citation

> US National Institutes of Health, RePORTER application 9941023, Genetic Linkage in Lupus (5R01AI024717-32). Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/grant/nih/9941023. Licensed CC0.

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