Trends in Molecular Medicine Formatting Requirements: Complete Author Guide

The abstract format varies by article type.

• Reviews: 120-word unstructured abstract
• Opinions: 100-word unstructured abstract
• Forum and Spotlight: No abstract
• Citations in abstract: Not allowed
• Structure: Single paragraph, no subheadings

The 120-word limit for Review abstracts is tight. State the topic, the main conclusions, and the forward-looking insights in a single paragraph. Don't waste words on background that readers of a molecular medicine review journal already know.

Highlights: Reviews and Opinions require 3-4 highlights, each a single sentence. These appear at the top of the published article and in email alerts. Highlights should be standalone insights, not a summary of the abstract. Each highlight should make a reader think "I want to know more about this."

Outstanding Questions: Reviews must include 3-5 "Outstanding Questions" at the end. These are open questions that the review identifies as important for the field. They should be specific enough to guide future research, not so broad that they're meaningless. "What are the mechanisms of mRNA degradation in vivo?" is useful. "How does molecular medicine work?" isn't.

Trends in Molecular Medicine figures are distinctive. The journal emphasizes clean, schematic-style illustrations that convey concepts clearly.

Figure specifications:

Figure style: Trends in Molecular Medicine uses clean, concept-driven figures rather than raw data figures. Think schematic diagrams, pathway illustrations, and summary models. The journal's illustration team may redraw your submitted figures to match the Trends visual style.

Submitted vs published figures:

1. Submit clear draft figures with all labels, arrows, and annotations
2. Include detailed figure legends explaining every element
3. The illustration team may contact you about design choices
4. Review and approve the redrawn versions before publication

Common figure types:

• Molecular pathway diagrams
• Disease mechanism schematics
• Drug mechanism of action illustrations
• Timeline figures showing field development
• Comparison frameworks (e.g., different therapeutic approaches)

Key Points figure: Many Trends Reviews include a "Key Points" figure that visually summarizes the review's main arguments. This is usually a graphical overview that readers can understand without reading the full text. It's not mandatory, but editors appreciate it.

Table formatting:

• Tables should have headers for every column
• Keep tables simple and focused
• Tables are useful for comparing drugs, clinical trials, or molecular targets
• The production team reformats tables to match journal style

Trends in Molecular Medicine uses Cell Press numbered reference style.

In-text citations: Superscript numbers, e.g., ^1, ^2,3, ^4-7. Numbered sequentially by order of first appearance.

Reference list format:

1. Author, A.B., Author, C.D., and Author, E.F. (Year). Title of article. Journal Name Abbreviated Volume, Pages.

Key formatting details:

• Author last name first, then initials (Author, A.B.)
• "and" before the last author
• Up to 10 authors listed; for 11+, first 10 then "et al."
• Year in parentheses after author list
• Article title in sentence case
• Journal name abbreviated per MEDLINE, in italics
• Volume in italics

Reference volume: Trends in Molecular Medicine Reviews typically cite 80-120 references. That's a lot for a 5,000-word paper, which means references are dense throughout the text. Every statement of fact should be referenced. The high citation density is a feature of the Trends style; readers use these reviews as reference maps to the literature.

Clinical trial citations: When citing clinical trial results, include the ClinicalTrials.gov identifier where available. Trends in Molecular Medicine bridges basic and clinical science, and readers appreciate direct links to clinical data.

Trends in Molecular Medicine uses supplementary material sparingly, which makes sense for a review journal.

Typical supplementary content:

• Extended reference lists or resource tables
• Supplementary figures with additional schematics
• Glossary of terms (for highly technical reviews)

Most Trends in Molecular Medicine articles don't have supplementary material. The review itself should be self-contained. If you're finding that essential content doesn't fit in the word limit, consider narrowing the scope rather than creating supplements.

These are the details that Trends in Molecular Medicine authors learn:

Outstanding Questions are mandatory for Reviews. They appear in a box at the end of the review and are one of the most-read sections. Editors evaluate them carefully. Generic questions won't pass. Each question should be specific enough that a researcher could design a study to address it.

The forward-looking angle matters. Trends journals are about where the field is going, not just where it's been. Editors want Reviews that identify emerging themes, predict future directions, and highlight underexplored areas. A backward-looking summary of the literature isn't enough for Trends.

Figures may be redrawn. Don't spend hours perfecting figure aesthetics. Submit clear, well-labeled drafts. The illustration team will make them beautiful and consistent with the journal's style. Do spend time making sure your figures convey the right concepts accurately.

Pre-submission inquiries are expected. Even if you weren't invited, you can pitch a Review to the editors. Send a 1-2 paragraph proposal outlining the topic, why it's timely, what angle you'd take, and your qualifications. The editors respond relatively quickly.

Glossary boxes. For reviews that use specialized terminology, include a glossary box defining key terms. This is especially useful when your review bridges two fields (e.g., immunology and bioengineering) that use different vocabularies.

Clinical context matters. Trends in Molecular Medicine sits between basic science and clinical medicine. Reviewers and editors expect you to connect molecular findings to clinical implications. A purely basic-science review without clinical context is better suited to Trends in Biochemical Sciences or Trends in Cell Biology.

Clinician's Corner is mandatory for Reviews. Every Review published in Trends in Molecular Medicine must include a "Clinician's Corner" box. This requirement is specific to TMM within the Trends series and does not appear in other Trends journals. The box should be approximately 400 words with 4-5 bullet points translating the molecular findings into clinical context: what do these findings mean for diagnosis, treatment, or prevention? The box is written in accessible language for clinician readers, not specialists. Editors return Reviews without this section before proceeding to peer review.

Copyediting is thorough. Cell Press has professional copyeditors who will revise your prose for clarity and accessibility. They'll remove jargon, simplify sentence structures, and ensure consistency. Don't resist these edits; they make the paper better.

In our pre-submission review work with manuscripts targeting Trends in Molecular Medicine, four patterns generate the most consistent desk rejections and revision requests.

Missing Clinician's Corner box. Every Review in Trends in Molecular Medicine requires a "Clinician's Corner" box, a requirement unique to TMM within the Trends series. The box should be approximately 400 words with 4-5 bullet points translating the molecular findings into clinical context. First-time TMM submitters frequently omit this section entirely because it doesn't appear in the main word count guidance, and it is not required in other Trends journals. Editors return Reviews without the Clinician's Corner before proceeding to peer review.

Outstanding Questions that are too broad to be actionable. The Outstanding Questions section is mandatory for Reviews, but the questions must be specific enough that a researcher could design a study to address them. "What are the therapeutic implications of X pathway?" is not an Outstanding Question by TMM standards. A question like "Does autophagy induction precede lysosomal membrane permeabilization in cisplatin-treated HER2-positive breast cancer cells?" is the specificity editors expect. Generic questions are returned for revision consistently.

Review scope too broad for 5,000 words. TMM Reviews run shorter than most review journals, approximately 5,000 words versus 8,000-15,000 at Nature Reviews or Annual Reviews. Authors who propose to review "all advances in mRNA therapeutics" or "the full landscape of tumor immunology" are redirected immediately because these topics cannot be synthesized meaningfully in 5,000 words. The editorial question is: what specific slice of this topic yields genuine forward-looking insight at this length?

Review content without clinical context. TMM bridges molecular biology and clinical medicine. A purely basic-science Review focused on molecular mechanisms without connecting the findings to clinical implications is redirected to sister journals like Trends in Biochemical Sciences or Trends in Cell Biology. Every major section of a TMM Review should answer the question: what does this mean for a clinician treating a patient, or for a translational researcher designing a trial?

A Trends in Molecular Medicine submission readiness check evaluates your Review structure, Clinician's Corner completeness, and Outstanding Questions quality before submission.

These trip up Trends in Molecular Medicine authors:

1. Outstanding Questions quality. Generic questions like "What is the mechanism?" don't pass editorial review. Each question should be specific and actionable.

1. Highlight quality. 3-4 highlights, each a complete sentence making a specific claim. Vague highlights are sent back for revision.

1. Word limit adherence. 5,000 words is strict for Reviews. Don't assume you'll get an extension. Plan your outline to fit within the limit from the start.

1. Figure legend detail. Since figures may be redrawn, legends must explain every element clearly enough for an illustrator to recreate the figure accurately without additional input from you.

1. Reference currency. Reviews that don't cite recent literature (within the last 1-2 years) will be criticized as outdated. Update your reference list before final submission.