Science AI Journal
Biochemistry, Genetics and Molecular Biology · Research topic

Open research questions in Protease and Inhibitor Mechanisms

130 gap statements mined from Protease and Inhibitor Mechanisms papers in our 4.5M-paper local library, which holds 544 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

Choosing where to publish on Protease and Inhibitor Mechanisms? See the ranked Biology journals.

What the literature leaves open

  • The expression of TIMP-1 in feline sarcomas has not been previously studied. The role of the VEGF pathway in feline sarcomas has not been evaluated. Prior studies have not compared the expression of metalloproteinases and angiogenic factors between ISSs and NISSs.

    Microenvironment of Sarcomas Associated and Not Associated with Inoculation Sites in Domestic Cats: The Role of Metalloproteinases and Angiogenic Factors · 2026 · DOI

  • The biological mechanisms of action of known collagen peptide fragments are not fully understood. The short half-life of peptide fragments is an obstacle in investigating their true biological potential. There is a need for creative ways to measure peptide fragments.

    Current Perspectives on the Role of Collagen Peptide Fragments in Health and Disease · 2026 · DOI

  • The challenge of off-target toxicity associated with broad-spectrum MMP inhibitors, - the difficulty of translating preclinical promise into clinical reality, - the need for improved patient stratification and biomarker-guided therapy.

    Protease inhibition: breaking the barriers of chemoresistance in cancer · 2026 · DOI

  • Prior studies have shown that small airway dysfunction can occur in alpha-1 antitrypsin deficiency patients despite preserved spirometry. However, the sensitivity of spirometry for detecting small airway dysfunction is limited. The study aims to investigate the use of impulse oscillometry as a complementary tool for detecting small airway dysfunction.

    Small airway dysfunction across alpha-1 antitrypsin deficiency genotypes with preserved spirometry · 2026 · DOI

  • Early detection of HCC remains challenging. The five-year survival rate of HCC patients is low. The underlying mechanisms of the interaction between CAFs and HCC cells are complex and not well understood.

    CAF-derived miR-642a-3p supports migration, invasion, and EMT of hepatocellular carcinoma cells by targeting SERPINE1 · 2024 · DOI

  • The study highlights the need for sensitivity and replication analyses to support the association between cathepsin B levels and PD risk.

    Cathepsins and Parkinson’s disease: insights from Mendelian randomization analyses · 2024 · DOI

  • Serine protease inhibitor clade E member 1 (SERPINE1) is involved in various biological processes, but its role in promoting or suppressing tumorigenesis remains controversial.

    Diverse roles of SERPINE1 in regulating cellular proliferation and invasion · 2026 · DOI

  • Despite their well-established roles in OSCC, the overall clinical relevance of MMPs remains unclear.

    Profiling the MMP family genes as prognostic biomarkers in oral squamous cell carcinoma: from computational discovery to clinical validation in a South Indian cohort · 2026 · DOI

  • While the exact mode of the nonspecific interaction remains unclear, it accelerates protease inhibition and likely contributes to the nuclear localization observed for internalized vaspin and may allow for intracellular effects.

    Vaspin identified as a DNA ‐binding serpin with functional consequences for protease inhibition · 2025 · DOI

  • In turn, stimulated cancer cells favor CAF invasiveness through a mechanism that remains to be identified.

    The Rab25‐ ADAMTS5 axis as a previously undescribed mechanism for sensing tumor microenvironment complexity · 2025 · DOI

  • Although the specific mechanisms and clinical applications of cancer matrisome have not yet been fully elucidated, recent techniques and analyses on cancer matrisomics have emphasized their biological importance in cancer progression and their clinical implications in deciding the efficacy of cancer treatment.

    Matrisomics: Beyond the extracellular matrix for unveiling tumor microenvironment · 2024 · DOI

  • Experimental validation of the designed compounds is necessary to confirm their efficacy. Further optimization of the QSAR model and docking protocol may lead to improved results. Exploration of other potential targets for anticancer therapy is warranted.

    QSAR and Docking Based Screeningof Pyrrolidine Derivatives as Matrix Metalloproteinase-2 Inhibitors · 2026 · DOI

  • Among the molecular regulators of these interactions, cysteine cathepsins and legumain have emerged as important proteases involved in tissue remodeling, immune regulation, and tumor progression, yet their distribution and functional status across human breast cancer ecosystems remain insufficiently defined.

    Single-cell and spatial profiling of cysteine cathepsins identifies tumor states relevant to antibody-drug conjugates in breast cancer · 2026 · DOI

  • Legumain (AEP) is a cysteine protease with a highly conserved catalytic core but variable surface features whose evolutionary and structural diversity remain incompletely understood.

    Divergent Loop Architecture Shapes Pocket2 Variation in Shark Legumains · 2026 · DOI

  • Several limitations of this study warrant consideration. Another limitation of this study is the age imbalance between the benign and malignant groups, which may represent a potential confounding factor influencing TIMP-1 concentrations.

    Serum TIMP-1 shows a potential association with metastatic disease in patients with pancreatic cancer: a pilot analysis without a healthy control cohort · 2026 · DOI

  • Several cell-based studies investigating HAI-2 as a regulator of TMPRSS2 protease activity in the context of cancer and viral infections, but translation efforts with soluble HAI-2-based therapeutic strategies have not been explored yet.

    Hepatocyte growth factor activator inhibitor-2 rapidly inactivates airway-expressed human Type II Transmembrane Serine Proteases · 2026 · DOI

  • The clinical implications of this deficiency are not yet fully understood, especially in heterozygotic individuals. Underdiagnosis is likely to be a major limitation in the study of the disease impact in the pediatric age group12. However, data regarding the pediatric population are still scarce.

    Alpha-1-antitrypsin deficiency in children: a 10-year case study from a tertiary hospital · 2026 · DOI

  • Like several other MMPs, MMP13 has been shown to interact with heparan sulfate (HS), a highly sulfated glycosaminoglycan found at the cell surface and in the extracellular matrix, but the significance of the interaction remains unknown.

    Heparan sulfate selectively inhibits the collagenase activity of matrix metalloproteinase 13 · 2026 · DOI

  • Artesunate (ART), an antimalarial drug, has demonstrated anticancer properties; yet, the underlying mechanisms of its action in NPC are poorly defined.

    Artesunate suppresses nasopharyngeal carcinoma progression by directly targeting MMP2 · 2026 · DOI

  • The study did not examine the effects of FGFR-2 activation in neoplastic cells, - No studies in the available literature have examined TIMP-1 expression in feline sarcomas or TIMP-2 expression in NISS, - The chi-square test is invalid due to expected frequencies in several cells being less…

    Microenvironment of Sarcomas Associated and Not Associated with Inoculation Sites in Domestic Cats: The Role of Metalloproteinases and Angiogenic Factors · 2026 · DOI

  • Investigation of selective MMP inhibitors beyond oncology - Development of highly selective compounds designed to preserve therapeutic efficacy while minimizing off-target toxicity - Identification of disease-and tissue-specific MMP isoforms, together with proteomic characterization of substrate…

    Protease inhibition: breaking the barriers of chemoresistance in cancer · 2026 · DOI

  • Further studies are needed to confirm the findings, - Studies with larger sample sizes and multiple centers are required, - Research on the long-term implications of SAD in AATD patients…

    Small airway dysfunction across alpha-1 antitrypsin deficiency genotypes with preserved spirometry · 2026 · DOI

  • Analysis of additional hinge markers may be needed to understand the extent of this phenomenon, - The study only examined the role of Mmp1 and Scaf in IR-induced fate change and translocation, - The study did not investigate the role of other extracellular proteins in IR-induced fate change…

    Matrix Metalloprotease 1 (Mmp1) promotes cell fate change for epithelial-to-epithelial transition during regeneration after radiation damage in Drosophila · 2026 · DOI

  • Investigate the role of other extracellular proteins in IR-induced fate change and translocation, - Examine the role of Mmp1 and Scaf in other types of tissue regeneration, - Study the molecular mechanisms underlying the induction of Mmp1 and Scaf by JNK…

    Matrix Metalloprotease 1 (Mmp1) promotes cell fate change for epithelial-to-epithelial transition during regeneration after radiation damage in Drosophila · 2026 · DOI

  • The homogeneity of our sample population, which primarily consisted of individuals of European ancestry, may have limited the generalizability of our results - Our study not observing colocalization between Cathepsin B and PD, indicating a potential confounding effect of linkage disequilibrium between the cathepsin B pQTL and PD riskassociated variants - The consideration of tissue specificity in protein biomarker…

    Cathepsins and Parkinson’s disease: insights from Mendelian randomization analyses · 2024 · DOI

Most-cited papers in Protease and Inhibitor Mechanisms

Most recent work

Find a gap in your own Protease and Inhibitor Mechanisms sub-topic

This page shows what the Protease and Inhibitor Mechanisms literature already flags as unresolved. To narrow it to your specific question, search the Research Gap Finder: the search is free with a free account and lists the papers closest to your topic first. Unlocking that topic (50 credits, charged once) fills the comparison table from our 4.5M-paper local library and writes the gaps from its rows.

Open the Research Gap Finder →

Related topics in Biochemistry, Genetics and Molecular Biology

Gut microbiota and health
3,552 open questions
Extracellular vesicles in disease
1,364 open questions
Antibiotic Resistance in Bacteria
1,198 open questions
Single-cell and spatial transcriptomics
1,050 open questions
RNA modifications and cancer
1,034 open questions
Inflammatory Bowel Disease
1,028 open questions
Genetic Associations and Epidemiology
970 open questions
Mitochondrial Function and Pathology
824 open questions
Open questions raised by papers listed on this page include: (1) The role of the VEGF pathway in feline sarcomas has not been evaluated (“Microenvironment of Sarcomas Associated and Not Associated with Inoculation…”, 2026); (2) The biological mechanisms of action of known collagen peptide fragments are not fully understood (“Current Perspectives on the Role of Collagen Peptide Fragments in Health and…”, 2026); (3) Serine protease inhibitor clade E member 1 (SERPINE1) is involved in various biological processes, but its role in promoting or suppressing tumorigenesis remains controversial (“Diverse roles of SERPINE1 in regulating cellular proliferation and invasion”, 2026); (4) Despite their well-established roles in OSCC, the overall clinical relevance of MMPs remains unclear (“Profiling the MMP family genes as prognostic biomarkers in oral squamous cell…”, 2026); (5) Exploration of other potential targets for anticancer therapy is warranted (“QSAR and Docking Based Screeningof Pyrrolidine Derivatives as Matrix…”, 2026). 130 gap statements have been mined from Protease and Inhibitor Mechanisms papers in our 4.5M-paper local library, which holds 544 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

Tools for your next paper

Gaps & Literature SearchFind open questions in any field — 120,000+ open gaps mined from our own library.Pre-CheckIs your paper ready? Acceptance odds for top, mid and open/emerging journals, in seconds.Journal FinderA ranked shortlist of target journals from a 17,500-venue index.Duplicate Publication CheckerCheck for prior publication across 7 sources and our local library.Citation GeneratorFreeA DOI or title → APA, MLA, Vancouver, Chicago, BibTeX, RIS. No signup.Graphical Abstract MakerFreeTurn your findings into a colorblind-safe graphical abstract.

How Pre-Check worksHow AI Review works

Compare the category — Honest roundups of the AI research tools, ours listed alongside the alternatives.

Command palette

Jump anywhere, run any action.