Cell Formatting Requirements: Complete Author Guide

Cell requires three separate summary elements. Missing any one of them will get your manuscript returned.

Summary (Abstract): 150 words maximum, unstructured single paragraph, no citations. Cell calls it the "Summary" rather than "Abstract."

Highlights: 3-4 bullet points, each limited to 85 characters including spaces. No abbreviations. Highlights appear prominently in the table of contents and search results, so each one should state a single, specific finding. "We identify a novel mechanism" is too vague. "BRCA1 editing restores homologous recombination in patient-derived organoids" is closer to the right level of specificity.

eTOC Blurb: Approximately 50-80 words written in third person ("Smith et al. show that..." not "We show that..."). This appears in the electronic table of contents email sent to subscribers. Write it for a broad biology audience, not specialists. Cell's editorial team uses the eTOC Blurb and Highlights as source material for the "In Brief" summary they write for accepted articles.

All three elements should be submitted together in a single Word document, separate from the main manuscript text.

How to write Cell Highlights without wasting the 85 characters

Cell Highlights are not mini-abstracts. Treat each bullet as one search-visible

finding that a broad cell-biology reader can understand before opening the PDF.

Elsevier's general Highlights guidance says Cell Press articles use three to

four bullets, each 85 characters or fewer, and that they should capture novel

results or new methods rather than background.

In our checks of Cell-targeted drafts, weak Highlights usually fail in one of

three ways: they restate the title, they describe the method instead of the

finding, or they use the whole bullet on field-level importance. A better set

uses the bullets as a sequence:

1. the central mechanism or cell-state change;
2. the strongest validation result;
3. the disease, organism, or system consequence;
4. the method contribution only if the method is itself part of the claim.

Do not copy this sequence mechanically. A purely computational or resource

paper may need a methods-forward bullet, while a mechanistic Article usually

needs validation-forward bullets. The check is whether each bullet would still

be useful if it appeared alone in a table of contents, search snippet, or alert

email.

Graphical abstract (mandatory): Cell was one of the first top journals to require this. The graphical abstract must be exactly 1,200 x 1,200 pixels (square), submitted as a separate TIFF, PDF, or JPG file, with minimal text and self-explanatory without a legend. Cell's editors evaluate the graphical abstract during the initial editorial screen, a poorly designed one can contribute to desk rejection. Use BioRender or Adobe Illustrator, not PowerPoint screenshots.

Multi-panel figures: Cell papers typically use dense multi-panel figures with 4-8 panels each. There's no explicit panel limit, but readability matters. Supplementary figures must meet the same resolution standards as main figures and go through full peer review.

Color is free and expected. Cell doesn't charge for color figures and actively expects high-quality color presentation. Consistent color schemes across figures are strongly encouraged.

Cell uses numbered superscript citations. In-text: superscript numbers (e.g., "as previously reported^1,2,3"). Ranges condense (e.g., ^1-5).

Reference list format (worked example, with the italic volume the Cell Press style applies):

1. Zhang, Y., Chen, L., and Patel, W.R. (2026). Title of article. *Cell* **189**, 1234-1250.

Key formatting details:

• Full author list up to 10 authors; use "et al." after the 10th

• Year in parentheses immediately after the author list

• Article title included (some numbered styles omit titles; Cell doesn't)

• Journal name abbreviated per ISO 4

• Volume number in italic

• No DOI in the reference list

• "and" before the last author, not "&"

The reference cap for Articles is approximately 80 (soft limit, exceeding 100 will likely prompt an editorial request to trim). Short Articles should stay around 40. Preprint references are allowed but must include "(preprint)" after the title and the DOI to the preprint server. Editors may ask you to update preprint references to published versions during revision.

Cell's supplementary content is structured differently from Nature or Science.

Supplementary Figures: Up to 7 supplementary figures (labeled S1--S7), compiled into a single supplementary PDF with legends. Short Articles allow up to 4 supplementary figures but up to 8 total supplemental items including tables and videos. All supplementary figures go through full peer review and must meet the same resolution standards as main figures.

Supplementary Tables: Submit as Excel files (preferred for large datasets) or as part of the supplementary PDF.

Data and Code Deposits: Cell requires all data underlying the paper to be deposited in appropriate public repositories, with accession numbers in the Key Resources Table. Cell Press partners with Mendeley Data for supplementary dataset hosting, which generates a DOI linked to the article.

STAR Methods (Structured, Transparent, Accessible Reporting) replaced traditional Materials and Methods in 2016 and is mandatory for all Cell research articles. It's one of the journal's most distinctive features.

An important practical detail from Cell Press: your manuscript does not need to follow STAR Methods format at initial submission. If your paper is accepted, your handling editor will work with you to format the STAR Methods section. That said, submitting with STAR Methods already formatted signals familiarity with the journal.

STAR Methods are divided into five standard headings:

1. Resource Availability (three mandatory subheadings)

• Lead contact (name and email)

• Materials availability (reagent sharing statement)

• Data and code availability (repository accession numbers, DOIs)

1. Experimental Model and Subject Details (when appropriate)

• Cell lines, animal models, human subjects with full provenance

1. Method Details (required)

• Full experimental procedures, organized with up to two levels of subheadings

1. Quantification and Statistical Analysis (when appropriate)

• All statistical tests, software, sample sizes, significance thresholds

1. Additional Resources (when appropriate)

• Any supplementary methodological information

Key Resources Table (KRT): The centerpiece of STAR Methods and entirely unique to Cell Press. The KRT is a structured table listing every reagent, antibody, cell line, organism, software tool, algorithm, chemical, peptide, recombinant DNA, deposited data, and other resource used in the study. Each entry includes the resource name, source, and identifier (catalog number, RRID, accession number, URL). RRIDs are required for antibodies, cell lines, organisms, and software. The KRT template is available from the Cell Press author guidelines.

All original code must be deposited in a repository that mints DOIs (GitHub + Zenodo, for example) or included in supplemental information before acceptance.

The formatting issues that matter for Cell are not just file-cleanup problems.

They change how the editor reads the science. In our pre-submission review work

on Cell-targeted manuscripts, the recurring patterns are specific enough to

check before upload:

Highlights that describe the manuscript instead of the result. A Cell

Highlight such as "This study reveals a new immune mechanism" does not help the

editor or reader locate the paper's contribution. The stronger version names

the immune cell, perturbation, and consequence. This is a manuscript-component

problem because it affects the Highlights file, title alignment, and eTOC

positioning at the same time.

STAR Methods that hide a validation gap. A methods section can use the

right Cell Press headings and still fail the editorial read if the genetic,

biochemical, pharmacological, or statistical validation is buried. We check

whether the STAR Methods, Key Resources Table, and figure legends make the

main mechanism auditable rather than just formally complete.

Graphical abstracts that repeat Figure 1. Cell's graphical abstract should

show the conceptual finding or workflow. When authors crop a figure panel, the

file may satisfy an image-size check but still fail the table-of-contents job.

That problem usually travels with overlong figure legends and vague

Highlights, so it needs a package-level fix.

Reference output that looks numbered but is not Cell style. EndNote,

Zotero, and Mendeley can produce numbered references that still include DOI

fields, the wrong author punctuation, or a non-Cell journal-title style. The

reference list, in-text citations, and final submission files should be checked

together because one exported style can create errors across the manuscript.

The practical test we use is whether the formatting package strengthens the

editorial argument instead of merely avoiding a technical return. For Cell,

that means the Highlights file should name the result the editor will remember,

the graphical abstract should make the mechanism legible before the figure set,

the STAR Methods should expose the validation chain behind the strongest claim,

and the reference list should not signal that the manuscript was exported from

a generic numbered template. If those four pieces point in different

directions, the page count and figure count can be correct while the submission

still feels less Cell-ready than the science deserves.

For manuscripts targeting Cell, four patterns generate the most consistent desk-rejection outcomes.

STAR Methods incomplete or not properly structured. Cell's author guidelines mandate the STAR Methods format with fixed section headers: Resource Availability, Experimental Model and Study Participant Details, Method Details, and Quantification and Statistical Analysis. The guidelines further require a Key Resources Table listing all key reagents, antibodies, cell lines, software, and datasets with catalog numbers and identifiers.

Manuscripts that use a conventional Materials and Methods section, omit the Key Resources Table, or use non-standard STAR Methods headers are returned before editorial assessment. The STAR Methods section must appear after the references and is a fully peer-reviewed part of the manuscript.

Highlights missing or not meeting character limits. Cell requires 3-4 bullet-point Highlights, each no longer than 85 characters including spaces. Highlights appear in the table of contents and email alerts. Highlights that are too long, too vague ("We identify a new mechanism"), or fewer than 3 bullets trigger administrative review. The Cell guidelines specify that Highlights should convey the core findings, not restate the title.

Graphical abstract repurposed from a figure panel. Cell requires a 1,200 x 1,200 pixel graphical abstract in TIFF or EPS format with minimal text, submitted as a separate file. The guidelines distinguish this from figure panels: it should be a purpose-built schematic summarizing the study's conceptual contribution. Cropped or scaled figure panels submitted in place of a graphical abstract are flagged during technical check and require resubmission.

Correlative data without mechanistic validation. Cell's editorial guidelines state that papers must advance mechanistic understanding, not just report correlations. The author checklist asks whether the study provides "genetic, biochemical, or pharmacological evidence" for the proposed mechanism. Studies that identify correlations without genetic knockouts, rescue experiments, or equivalent mechanistic evidence are desk rejected regardless of the correlation's statistical strength.

A Cell submission readiness check evaluates STAR Methods completeness, Highlights format, graphical abstract compliance, and mechanistic evidence quality against these patterns.